developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1 | /* This program is free software; you can redistribute it and/or modify |
| 2 | * it under the terms of the GNU General Public License as published by |
| 3 | * the Free Software Foundation; version 2 of the License |
| 4 | * |
| 5 | * This program is distributed in the hope that it will be useful, |
| 6 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 7 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 8 | * GNU General Public License for more details. |
| 9 | * |
| 10 | * Copyright (C) 2014-2016 Sean Wang <sean.wang@mediatek.com> |
| 11 | * Copyright (C) 2016-2017 John Crispin <blogic@openwrt.org> |
| 12 | */ |
| 13 | |
| 14 | #include <linux/netfilter_bridge.h> |
| 15 | #include <linux/netfilter_ipv6.h> |
| 16 | |
| 17 | #include <net/arp.h> |
| 18 | #include <net/neighbour.h> |
| 19 | #include <net/netfilter/nf_conntrack_helper.h> |
| 20 | #include <net/netfilter/nf_flow_table.h> |
| 21 | #include <net/ipv6.h> |
| 22 | #include <net/ip6_route.h> |
| 23 | #include <net/ip.h> |
| 24 | #include <net/tcp.h> |
| 25 | #include <net/udp.h> |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 26 | #include <net/netfilter/nf_conntrack.h> |
| 27 | #include <net/netfilter/nf_conntrack_acct.h> |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 28 | |
| 29 | #include "nf_hnat_mtk.h" |
| 30 | #include "hnat.h" |
| 31 | |
| 32 | #include "../mtk_eth_soc.h" |
developer | 8051e04 | 2022-04-08 13:26:36 +0800 | [diff] [blame] | 33 | #include "../mtk_eth_reset.h" |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 34 | |
| 35 | #define do_ge2ext_fast(dev, skb) \ |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 36 | ((IS_LAN_GRP(dev) || IS_WAN(dev) || IS_PPD(dev)) && \ |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 37 | skb_hnat_is_hashed(skb) && \ |
| 38 | skb_hnat_reason(skb) == HIT_BIND_FORCE_TO_CPU) |
| 39 | #define do_ext2ge_fast_learn(dev, skb) \ |
| 40 | (IS_PPD(dev) && \ |
| 41 | (skb_hnat_sport(skb) == NR_PDMA_PORT || \ |
| 42 | skb_hnat_sport(skb) == NR_QDMA_PORT) && \ |
| 43 | ((get_dev_from_index(skb->vlan_tci & VLAN_VID_MASK)) || \ |
| 44 | get_wandev_from_index(skb->vlan_tci & VLAN_VID_MASK))) |
| 45 | #define do_mape_w2l_fast(dev, skb) \ |
| 46 | (mape_toggle && IS_WAN(dev) && (!is_from_mape(skb))) |
| 47 | |
| 48 | static struct ipv6hdr mape_l2w_v6h; |
| 49 | static struct ipv6hdr mape_w2l_v6h; |
| 50 | static inline uint8_t get_wifi_hook_if_index_from_dev(const struct net_device *dev) |
| 51 | { |
| 52 | int i; |
| 53 | |
| 54 | for (i = 1; i < MAX_IF_NUM; i++) { |
| 55 | if (hnat_priv->wifi_hook_if[i] == dev) |
| 56 | return i; |
| 57 | } |
| 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static inline int get_ext_device_number(void) |
| 63 | { |
| 64 | int i, number = 0; |
| 65 | |
| 66 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) |
| 67 | number += 1; |
| 68 | return number; |
| 69 | } |
| 70 | |
| 71 | static inline int find_extif_from_devname(const char *name) |
| 72 | { |
| 73 | int i; |
| 74 | struct extdev_entry *ext_entry; |
| 75 | |
| 76 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) { |
| 77 | ext_entry = hnat_priv->ext_if[i]; |
| 78 | if (!strcmp(name, ext_entry->name)) |
| 79 | return 1; |
| 80 | } |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | static inline int get_index_from_dev(const struct net_device *dev) |
| 85 | { |
| 86 | int i; |
| 87 | struct extdev_entry *ext_entry; |
| 88 | |
| 89 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) { |
| 90 | ext_entry = hnat_priv->ext_if[i]; |
| 91 | if (dev == ext_entry->dev) |
| 92 | return ext_entry->dev->ifindex; |
| 93 | } |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | static inline struct net_device *get_dev_from_index(int index) |
| 98 | { |
| 99 | int i; |
| 100 | struct extdev_entry *ext_entry; |
| 101 | struct net_device *dev = 0; |
| 102 | |
| 103 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) { |
| 104 | ext_entry = hnat_priv->ext_if[i]; |
| 105 | if (ext_entry->dev && index == ext_entry->dev->ifindex) { |
| 106 | dev = ext_entry->dev; |
| 107 | break; |
| 108 | } |
| 109 | } |
| 110 | return dev; |
| 111 | } |
| 112 | |
| 113 | static inline struct net_device *get_wandev_from_index(int index) |
| 114 | { |
developer | 8c9c0d0 | 2021-06-18 16:15:37 +0800 | [diff] [blame] | 115 | if (!hnat_priv->g_wandev) |
| 116 | hnat_priv->g_wandev = dev_get_by_name(&init_net, hnat_priv->wan); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 117 | |
developer | 8c9c0d0 | 2021-06-18 16:15:37 +0800 | [diff] [blame] | 118 | if (hnat_priv->g_wandev && hnat_priv->g_wandev->ifindex == index) |
| 119 | return hnat_priv->g_wandev; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 120 | return NULL; |
| 121 | } |
| 122 | |
| 123 | static inline int extif_set_dev(struct net_device *dev) |
| 124 | { |
| 125 | int i; |
| 126 | struct extdev_entry *ext_entry; |
| 127 | |
| 128 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) { |
| 129 | ext_entry = hnat_priv->ext_if[i]; |
| 130 | if (!strcmp(dev->name, ext_entry->name) && !ext_entry->dev) { |
| 131 | dev_hold(dev); |
| 132 | ext_entry->dev = dev; |
| 133 | pr_info("%s(%s)\n", __func__, dev->name); |
| 134 | |
| 135 | return ext_entry->dev->ifindex; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | return -1; |
| 140 | } |
| 141 | |
| 142 | static inline int extif_put_dev(struct net_device *dev) |
| 143 | { |
| 144 | int i; |
| 145 | struct extdev_entry *ext_entry; |
| 146 | |
| 147 | for (i = 0; i < MAX_EXT_DEVS && hnat_priv->ext_if[i]; i++) { |
| 148 | ext_entry = hnat_priv->ext_if[i]; |
| 149 | if (ext_entry->dev == dev) { |
| 150 | ext_entry->dev = NULL; |
| 151 | dev_put(dev); |
| 152 | pr_info("%s(%s)\n", __func__, dev->name); |
| 153 | |
developer | bc53e5f | 2021-05-21 10:07:17 +0800 | [diff] [blame] | 154 | return 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 155 | } |
| 156 | } |
| 157 | |
| 158 | return -1; |
| 159 | } |
| 160 | |
| 161 | int ext_if_add(struct extdev_entry *ext_entry) |
| 162 | { |
| 163 | int len = get_ext_device_number(); |
| 164 | |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 165 | if (len < MAX_EXT_DEVS) |
| 166 | hnat_priv->ext_if[len++] = ext_entry; |
| 167 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 168 | return len; |
| 169 | } |
| 170 | |
| 171 | int ext_if_del(struct extdev_entry *ext_entry) |
| 172 | { |
| 173 | int i, j; |
| 174 | |
| 175 | for (i = 0; i < MAX_EXT_DEVS; i++) { |
| 176 | if (hnat_priv->ext_if[i] == ext_entry) { |
| 177 | for (j = i; hnat_priv->ext_if[j] && j < MAX_EXT_DEVS - 1; j++) |
| 178 | hnat_priv->ext_if[j] = hnat_priv->ext_if[j + 1]; |
| 179 | hnat_priv->ext_if[j] = NULL; |
| 180 | break; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | return i; |
| 185 | } |
| 186 | |
| 187 | void foe_clear_all_bind_entries(struct net_device *dev) |
| 188 | { |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 189 | int i, hash_index; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 190 | struct foe_entry *entry; |
| 191 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 192 | if (!IS_LAN_GRP(dev) && !IS_WAN(dev) && |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 193 | !find_extif_from_devname(dev->name) && |
| 194 | !dev->netdev_ops->ndo_flow_offload_check) |
| 195 | return; |
| 196 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 197 | for (i = 0; i < CFG_PPE_NUM; i++) { |
| 198 | cr_set_field(hnat_priv->ppe_base[i] + PPE_TB_CFG, |
| 199 | SMA, SMA_ONLY_FWD_CPU); |
| 200 | |
| 201 | for (hash_index = 0; hash_index < hnat_priv->foe_etry_num; hash_index++) { |
| 202 | entry = hnat_priv->foe_table_cpu[i] + hash_index; |
| 203 | if (entry->bfib1.state == BIND) { |
| 204 | entry->ipv4_hnapt.udib1.state = INVALID; |
| 205 | entry->ipv4_hnapt.udib1.time_stamp = |
| 206 | readl((hnat_priv->fe_base + 0x0010)) & 0xFF; |
| 207 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 208 | } |
| 209 | } |
| 210 | |
| 211 | /* clear HWNAT cache */ |
| 212 | hnat_cache_ebl(1); |
| 213 | |
| 214 | mod_timer(&hnat_priv->hnat_sma_build_entry_timer, jiffies + 3 * HZ); |
| 215 | } |
| 216 | |
| 217 | static void gmac_ppe_fwd_enable(struct net_device *dev) |
| 218 | { |
| 219 | if (IS_LAN(dev) || IS_GMAC1_MODE) |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 220 | set_gmac_ppe_fwd(NR_GMAC1_PORT, 1); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 221 | else if (IS_WAN(dev)) |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 222 | set_gmac_ppe_fwd(NR_GMAC2_PORT, 1); |
| 223 | else if (IS_LAN2(dev)) |
| 224 | set_gmac_ppe_fwd(NR_GMAC3_PORT, 1); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | int nf_hnat_netdevice_event(struct notifier_block *unused, unsigned long event, |
| 228 | void *ptr) |
| 229 | { |
| 230 | struct net_device *dev; |
| 231 | |
| 232 | dev = netdev_notifier_info_to_dev(ptr); |
| 233 | |
| 234 | switch (event) { |
| 235 | case NETDEV_UP: |
| 236 | gmac_ppe_fwd_enable(dev); |
| 237 | |
| 238 | extif_set_dev(dev); |
| 239 | |
| 240 | break; |
| 241 | case NETDEV_GOING_DOWN: |
| 242 | if (!get_wifi_hook_if_index_from_dev(dev)) |
| 243 | extif_put_dev(dev); |
| 244 | |
| 245 | foe_clear_all_bind_entries(dev); |
| 246 | |
| 247 | break; |
developer | 8c9c0d0 | 2021-06-18 16:15:37 +0800 | [diff] [blame] | 248 | case NETDEV_UNREGISTER: |
developer | 1901f41 | 2022-01-04 17:22:00 +0800 | [diff] [blame] | 249 | if (hnat_priv->g_ppdev == dev) { |
developer | 8c9c0d0 | 2021-06-18 16:15:37 +0800 | [diff] [blame] | 250 | hnat_priv->g_ppdev = NULL; |
| 251 | dev_put(dev); |
| 252 | } |
developer | 1901f41 | 2022-01-04 17:22:00 +0800 | [diff] [blame] | 253 | if (hnat_priv->g_wandev == dev) { |
developer | 8c9c0d0 | 2021-06-18 16:15:37 +0800 | [diff] [blame] | 254 | hnat_priv->g_wandev = NULL; |
| 255 | dev_put(dev); |
| 256 | } |
| 257 | |
| 258 | break; |
| 259 | case NETDEV_REGISTER: |
| 260 | if (IS_PPD(dev) && !hnat_priv->g_ppdev) |
| 261 | hnat_priv->g_ppdev = dev_get_by_name(&init_net, hnat_priv->ppd); |
| 262 | if (IS_WAN(dev) && !hnat_priv->g_wandev) |
| 263 | hnat_priv->g_wandev = dev_get_by_name(&init_net, hnat_priv->wan); |
| 264 | |
| 265 | break; |
developer | 8051e04 | 2022-04-08 13:26:36 +0800 | [diff] [blame] | 266 | case MTK_FE_RESET_NAT_DONE: |
| 267 | pr_info("[%s] HNAT driver starts to do warm init !\n", __func__); |
| 268 | hnat_warm_init(); |
| 269 | break; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 270 | default: |
| 271 | break; |
| 272 | } |
| 273 | |
| 274 | return NOTIFY_DONE; |
| 275 | } |
| 276 | |
| 277 | void foe_clear_entry(struct neighbour *neigh) |
| 278 | { |
| 279 | u32 *daddr = (u32 *)neigh->primary_key; |
| 280 | unsigned char h_dest[ETH_ALEN]; |
| 281 | struct foe_entry *entry; |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 282 | int i, hash_index; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 283 | u32 dip; |
| 284 | |
| 285 | dip = (u32)(*daddr); |
| 286 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 287 | for (i = 0; i < CFG_PPE_NUM; i++) { |
developer | 8051e04 | 2022-04-08 13:26:36 +0800 | [diff] [blame] | 288 | if (!hnat_priv->foe_table_cpu[i]) |
| 289 | continue; |
| 290 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 291 | for (hash_index = 0; hash_index < hnat_priv->foe_etry_num; hash_index++) { |
| 292 | entry = hnat_priv->foe_table_cpu[i] + hash_index; |
| 293 | if (entry->bfib1.state == BIND && |
| 294 | entry->ipv4_hnapt.new_dip == ntohl(dip)) { |
| 295 | *((u32 *)h_dest) = swab32(entry->ipv4_hnapt.dmac_hi); |
| 296 | *((u16 *)&h_dest[4]) = |
| 297 | swab16(entry->ipv4_hnapt.dmac_lo); |
| 298 | if (strncmp(h_dest, neigh->ha, ETH_ALEN) != 0) { |
| 299 | pr_info("%s: state=%d\n", __func__, |
| 300 | neigh->nud_state); |
| 301 | cr_set_field(hnat_priv->ppe_base[i] + PPE_TB_CFG, |
| 302 | SMA, SMA_ONLY_FWD_CPU); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 303 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 304 | entry->ipv4_hnapt.udib1.state = INVALID; |
| 305 | entry->ipv4_hnapt.udib1.time_stamp = |
| 306 | readl((hnat_priv->fe_base + 0x0010)) & 0xFF; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 307 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 308 | /* clear HWNAT cache */ |
| 309 | hnat_cache_ebl(1); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 310 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 311 | mod_timer(&hnat_priv->hnat_sma_build_entry_timer, |
| 312 | jiffies + 3 * HZ); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 313 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 314 | pr_info("Delete old entry: dip =%pI4\n", &dip); |
| 315 | pr_info("Old mac= %pM\n", h_dest); |
| 316 | pr_info("New mac= %pM\n", neigh->ha); |
| 317 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 318 | } |
| 319 | } |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | int nf_hnat_netevent_handler(struct notifier_block *unused, unsigned long event, |
| 324 | void *ptr) |
| 325 | { |
| 326 | struct net_device *dev = NULL; |
| 327 | struct neighbour *neigh = NULL; |
| 328 | |
| 329 | switch (event) { |
| 330 | case NETEVENT_NEIGH_UPDATE: |
| 331 | neigh = ptr; |
| 332 | dev = neigh->dev; |
| 333 | if (dev) |
| 334 | foe_clear_entry(neigh); |
| 335 | break; |
| 336 | } |
| 337 | |
| 338 | return NOTIFY_DONE; |
| 339 | } |
| 340 | |
| 341 | unsigned int mape_add_ipv6_hdr(struct sk_buff *skb, struct ipv6hdr mape_ip6h) |
| 342 | { |
| 343 | struct ethhdr *eth = NULL; |
| 344 | struct ipv6hdr *ip6h = NULL; |
| 345 | struct iphdr *iph = NULL; |
| 346 | |
| 347 | if (skb_headroom(skb) < IPV6_HDR_LEN || skb_shared(skb) || |
| 348 | (skb_cloned(skb) && !skb_clone_writable(skb, 0))) { |
| 349 | return -1; |
| 350 | } |
| 351 | |
| 352 | /* point to L3 */ |
| 353 | memcpy(skb->data - IPV6_HDR_LEN - ETH_HLEN, skb_push(skb, ETH_HLEN), ETH_HLEN); |
| 354 | memcpy(skb_push(skb, IPV6_HDR_LEN - ETH_HLEN), &mape_ip6h, IPV6_HDR_LEN); |
| 355 | |
| 356 | eth = (struct ethhdr *)(skb->data - ETH_HLEN); |
| 357 | eth->h_proto = htons(ETH_P_IPV6); |
| 358 | skb->protocol = htons(ETH_P_IPV6); |
| 359 | |
| 360 | iph = (struct iphdr *)(skb->data + IPV6_HDR_LEN); |
| 361 | ip6h = (struct ipv6hdr *)(skb->data); |
| 362 | ip6h->payload_len = iph->tot_len; /* maybe different with ipv4 */ |
| 363 | |
| 364 | skb_set_network_header(skb, 0); |
| 365 | skb_set_transport_header(skb, iph->ihl * 4 + IPV6_HDR_LEN); |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | static void fix_skb_packet_type(struct sk_buff *skb, struct net_device *dev, |
| 370 | struct ethhdr *eth) |
| 371 | { |
| 372 | skb->pkt_type = PACKET_HOST; |
| 373 | if (unlikely(is_multicast_ether_addr(eth->h_dest))) { |
| 374 | if (ether_addr_equal_64bits(eth->h_dest, dev->broadcast)) |
| 375 | skb->pkt_type = PACKET_BROADCAST; |
| 376 | else |
| 377 | skb->pkt_type = PACKET_MULTICAST; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | unsigned int do_hnat_ext_to_ge(struct sk_buff *skb, const struct net_device *in, |
| 382 | const char *func) |
| 383 | { |
| 384 | if (hnat_priv->g_ppdev && hnat_priv->g_ppdev->flags & IFF_UP) { |
| 385 | u16 vlan_id = 0; |
| 386 | skb_set_network_header(skb, 0); |
| 387 | skb_push(skb, ETH_HLEN); |
| 388 | set_to_ppe(skb); |
| 389 | |
| 390 | vlan_id = skb_vlan_tag_get_id(skb); |
| 391 | if (vlan_id) { |
| 392 | skb = vlan_insert_tag(skb, skb->vlan_proto, skb->vlan_tci); |
| 393 | if (!skb) |
| 394 | return -1; |
| 395 | } |
| 396 | |
| 397 | /*set where we come from*/ |
| 398 | skb->vlan_proto = htons(ETH_P_8021Q); |
| 399 | skb->vlan_tci = |
| 400 | (VLAN_CFI_MASK | (in->ifindex & VLAN_VID_MASK)); |
| 401 | trace_printk( |
| 402 | "%s: vlan_prot=0x%x, vlan_tci=%x, in->name=%s, skb->dev->name=%s\n", |
| 403 | __func__, ntohs(skb->vlan_proto), skb->vlan_tci, |
| 404 | in->name, hnat_priv->g_ppdev->name); |
| 405 | skb->dev = hnat_priv->g_ppdev; |
| 406 | dev_queue_xmit(skb); |
| 407 | trace_printk("%s: called from %s successfully\n", __func__, func); |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | trace_printk("%s: called from %s fail\n", __func__, func); |
| 412 | return -1; |
| 413 | } |
| 414 | |
| 415 | unsigned int do_hnat_ext_to_ge2(struct sk_buff *skb, const char *func) |
| 416 | { |
| 417 | struct ethhdr *eth = eth_hdr(skb); |
| 418 | struct net_device *dev; |
| 419 | struct foe_entry *entry; |
| 420 | |
| 421 | trace_printk("%s: vlan_prot=0x%x, vlan_tci=%x\n", __func__, |
| 422 | ntohs(skb->vlan_proto), skb->vlan_tci); |
| 423 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 424 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 425 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 426 | return -1; |
| 427 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 428 | dev = get_dev_from_index(skb->vlan_tci & VLAN_VID_MASK); |
| 429 | |
| 430 | if (dev) { |
| 431 | /*set where we to go*/ |
| 432 | skb->dev = dev; |
| 433 | skb->vlan_proto = 0; |
| 434 | skb->vlan_tci = 0; |
| 435 | |
| 436 | if (ntohs(eth->h_proto) == ETH_P_8021Q) { |
| 437 | skb = skb_vlan_untag(skb); |
| 438 | if (unlikely(!skb)) |
| 439 | return -1; |
| 440 | } |
| 441 | |
| 442 | if (IS_BOND_MODE && |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 443 | (((hnat_priv->data->version == MTK_HNAT_V2 || |
| 444 | hnat_priv->data->version == MTK_HNAT_V3) && |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 445 | (skb_hnat_entry(skb) != 0x7fff)) || |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 446 | ((hnat_priv->data->version != MTK_HNAT_V2 && |
| 447 | hnat_priv->data->version != MTK_HNAT_V3) && |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 448 | (skb_hnat_entry(skb) != 0x3fff)))) |
| 449 | skb_set_hash(skb, skb_hnat_entry(skb) >> 1, PKT_HASH_TYPE_L4); |
| 450 | |
| 451 | set_from_extge(skb); |
| 452 | fix_skb_packet_type(skb, skb->dev, eth); |
| 453 | netif_rx(skb); |
| 454 | trace_printk("%s: called from %s successfully\n", __func__, |
| 455 | func); |
| 456 | return 0; |
| 457 | } else { |
| 458 | /* MapE WAN --> LAN/WLAN PingPong. */ |
| 459 | dev = get_wandev_from_index(skb->vlan_tci & VLAN_VID_MASK); |
| 460 | if (mape_toggle && dev) { |
| 461 | if (!mape_add_ipv6_hdr(skb, mape_w2l_v6h)) { |
| 462 | skb_set_mac_header(skb, -ETH_HLEN); |
| 463 | skb->dev = dev; |
| 464 | set_from_mape(skb); |
| 465 | skb->vlan_proto = 0; |
| 466 | skb->vlan_tci = 0; |
| 467 | fix_skb_packet_type(skb, skb->dev, eth_hdr(skb)); |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 468 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 469 | entry->bfib1.pkt_type = IPV4_HNAPT; |
| 470 | netif_rx(skb); |
| 471 | return 0; |
| 472 | } |
| 473 | } |
| 474 | trace_printk("%s: called from %s fail\n", __func__, func); |
| 475 | return -1; |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | unsigned int do_hnat_ge_to_ext(struct sk_buff *skb, const char *func) |
| 480 | { |
| 481 | /*set where we to go*/ |
| 482 | u8 index; |
| 483 | struct foe_entry *entry; |
| 484 | struct net_device *dev; |
| 485 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 486 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 487 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 488 | return -1; |
| 489 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 490 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 491 | |
| 492 | if (IS_IPV4_GRP(entry)) |
| 493 | index = entry->ipv4_hnapt.act_dp; |
| 494 | else |
| 495 | index = entry->ipv6_5t_route.act_dp; |
| 496 | |
developer | dce18f5 | 2023-03-18 22:11:13 +0800 | [diff] [blame] | 497 | dev = get_dev_from_index(index); |
| 498 | if (!dev) { |
| 499 | trace_printk("%s: called from %s. Get wifi interface fail\n", |
| 500 | __func__, func); |
| 501 | return 0; |
| 502 | } |
| 503 | |
| 504 | skb->dev = dev; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 505 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 506 | if (IS_HQOS_MODE && eth_hdr(skb)->h_proto == HQOS_MAGIC_TAG) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 507 | skb = skb_unshare(skb, GFP_ATOMIC); |
| 508 | if (!skb) |
| 509 | return NF_ACCEPT; |
| 510 | |
| 511 | if (unlikely(!pskb_may_pull(skb, VLAN_HLEN))) |
| 512 | return NF_ACCEPT; |
| 513 | |
| 514 | skb_pull_rcsum(skb, VLAN_HLEN); |
| 515 | |
| 516 | memmove(skb->data - ETH_HLEN, skb->data - ETH_HLEN - VLAN_HLEN, |
| 517 | 2 * ETH_ALEN); |
| 518 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 519 | |
| 520 | if (skb->dev) { |
| 521 | skb_set_network_header(skb, 0); |
| 522 | skb_push(skb, ETH_HLEN); |
| 523 | dev_queue_xmit(skb); |
| 524 | trace_printk("%s: called from %s successfully\n", __func__, |
| 525 | func); |
| 526 | return 0; |
| 527 | } else { |
| 528 | if (mape_toggle) { |
| 529 | /* Add ipv6 header mape for lan/wlan -->wan */ |
| 530 | dev = get_wandev_from_index(index); |
| 531 | if (dev) { |
| 532 | if (!mape_add_ipv6_hdr(skb, mape_l2w_v6h)) { |
| 533 | skb_set_network_header(skb, 0); |
| 534 | skb_push(skb, ETH_HLEN); |
| 535 | skb_set_mac_header(skb, 0); |
| 536 | skb->dev = dev; |
| 537 | dev_queue_xmit(skb); |
| 538 | return 0; |
| 539 | } |
| 540 | trace_printk("%s: called from %s fail[MapE]\n", __func__, |
| 541 | func); |
| 542 | return -1; |
| 543 | } |
| 544 | } |
| 545 | } |
| 546 | /*if external devices is down, invalidate related ppe entry*/ |
| 547 | if (entry_hnat_is_bound(entry)) { |
| 548 | entry->bfib1.state = INVALID; |
| 549 | if (IS_IPV4_GRP(entry)) |
| 550 | entry->ipv4_hnapt.act_dp = 0; |
| 551 | else |
| 552 | entry->ipv6_5t_route.act_dp = 0; |
| 553 | |
| 554 | /* clear HWNAT cache */ |
| 555 | hnat_cache_ebl(1); |
| 556 | } |
| 557 | trace_printk("%s: called from %s fail, index=%x\n", __func__, |
| 558 | func, index); |
| 559 | return -1; |
| 560 | } |
| 561 | |
| 562 | static void pre_routing_print(struct sk_buff *skb, const struct net_device *in, |
| 563 | const struct net_device *out, const char *func) |
| 564 | { |
| 565 | trace_printk( |
| 566 | "[%s]: %s(iif=0x%x CB2=0x%x)-->%s (ppe_hash=0x%x) sport=0x%x reason=0x%x alg=0x%x from %s\n", |
| 567 | __func__, in->name, skb_hnat_iface(skb), |
| 568 | HNAT_SKB_CB2(skb)->magic, out->name, skb_hnat_entry(skb), |
| 569 | skb_hnat_sport(skb), skb_hnat_reason(skb), skb_hnat_alg(skb), |
| 570 | func); |
| 571 | } |
| 572 | |
| 573 | static void post_routing_print(struct sk_buff *skb, const struct net_device *in, |
| 574 | const struct net_device *out, const char *func) |
| 575 | { |
| 576 | trace_printk( |
| 577 | "[%s]: %s(iif=0x%x, CB2=0x%x)-->%s (ppe_hash=0x%x) sport=0x%x reason=0x%x alg=0x%x from %s\n", |
| 578 | __func__, in->name, skb_hnat_iface(skb), |
| 579 | HNAT_SKB_CB2(skb)->magic, out->name, skb_hnat_entry(skb), |
| 580 | skb_hnat_sport(skb), skb_hnat_reason(skb), skb_hnat_alg(skb), |
| 581 | func); |
| 582 | } |
| 583 | |
| 584 | static inline void hnat_set_iif(const struct nf_hook_state *state, |
| 585 | struct sk_buff *skb, int val) |
| 586 | { |
developer | 4001797 | 2021-06-29 14:27:35 +0800 | [diff] [blame] | 587 | if (IS_WHNAT(state->in) && FROM_WED(skb)) { |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 588 | return; |
| 589 | } else if (IS_LAN(state->in)) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 590 | skb_hnat_iface(skb) = FOE_MAGIC_GE_LAN; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 591 | } else if (IS_LAN2(state->in)) { |
| 592 | skb_hnat_iface(skb) = FOE_MAGIC_GE_LAN2; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 593 | } else if (IS_PPD(state->in)) { |
| 594 | skb_hnat_iface(skb) = FOE_MAGIC_GE_PPD; |
| 595 | } else if (IS_EXT(state->in)) { |
| 596 | skb_hnat_iface(skb) = FOE_MAGIC_EXT; |
| 597 | } else if (IS_WAN(state->in)) { |
| 598 | skb_hnat_iface(skb) = FOE_MAGIC_GE_WAN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 599 | } else if (!IS_BR(state->in)) { |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 600 | if (state->in->netdev_ops->ndo_flow_offload_check) { |
| 601 | skb_hnat_iface(skb) = FOE_MAGIC_GE_VIRTUAL; |
| 602 | } else { |
| 603 | skb_hnat_iface(skb) = FOE_INVALID; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 604 | |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 605 | if (is_magic_tag_valid(skb) && |
| 606 | IS_SPACE_AVAILABLE_HEAD(skb)) |
| 607 | memset(skb_hnat_info(skb), 0, FOE_INFO_LEN); |
| 608 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 609 | } |
| 610 | } |
| 611 | |
| 612 | static inline void hnat_set_alg(const struct nf_hook_state *state, |
| 613 | struct sk_buff *skb, int val) |
| 614 | { |
| 615 | skb_hnat_alg(skb) = val; |
| 616 | } |
| 617 | |
| 618 | static inline void hnat_set_head_frags(const struct nf_hook_state *state, |
| 619 | struct sk_buff *head_skb, int val, |
| 620 | void (*fn)(const struct nf_hook_state *state, |
| 621 | struct sk_buff *skb, int val)) |
| 622 | { |
| 623 | struct sk_buff *segs = skb_shinfo(head_skb)->frag_list; |
| 624 | |
| 625 | fn(state, head_skb, val); |
| 626 | while (segs) { |
| 627 | fn(state, segs, val); |
| 628 | segs = segs->next; |
| 629 | } |
| 630 | } |
| 631 | |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 632 | static void ppe_fill_flow_lbl(struct foe_entry *entry, struct ipv6hdr *ip6h) |
| 633 | { |
| 634 | entry->ipv4_dslite.flow_lbl[0] = ip6h->flow_lbl[2]; |
| 635 | entry->ipv4_dslite.flow_lbl[1] = ip6h->flow_lbl[1]; |
| 636 | entry->ipv4_dslite.flow_lbl[2] = ip6h->flow_lbl[0]; |
| 637 | } |
| 638 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 639 | unsigned int do_hnat_mape_w2l_fast(struct sk_buff *skb, const struct net_device *in, |
| 640 | const char *func) |
| 641 | { |
| 642 | struct ipv6hdr *ip6h = ipv6_hdr(skb); |
| 643 | struct iphdr _iphdr; |
| 644 | struct iphdr *iph; |
| 645 | struct ethhdr *eth; |
| 646 | |
| 647 | /* WAN -> LAN/WLAN MapE. */ |
| 648 | if (mape_toggle && (ip6h->nexthdr == NEXTHDR_IPIP)) { |
| 649 | iph = skb_header_pointer(skb, IPV6_HDR_LEN, sizeof(_iphdr), &_iphdr); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 650 | if (unlikely(!iph)) |
| 651 | return -1; |
| 652 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 653 | switch (iph->protocol) { |
| 654 | case IPPROTO_UDP: |
| 655 | case IPPROTO_TCP: |
| 656 | break; |
| 657 | default: |
| 658 | return -1; |
| 659 | } |
| 660 | mape_w2l_v6h = *ip6h; |
| 661 | |
| 662 | /* Remove ipv6 header. */ |
| 663 | memcpy(skb->data + IPV6_HDR_LEN - ETH_HLEN, |
| 664 | skb->data - ETH_HLEN, ETH_HLEN); |
| 665 | skb_pull(skb, IPV6_HDR_LEN - ETH_HLEN); |
| 666 | skb_set_mac_header(skb, 0); |
| 667 | skb_set_network_header(skb, ETH_HLEN); |
| 668 | skb_set_transport_header(skb, ETH_HLEN + sizeof(_iphdr)); |
| 669 | |
| 670 | eth = eth_hdr(skb); |
| 671 | eth->h_proto = htons(ETH_P_IP); |
| 672 | set_to_ppe(skb); |
| 673 | |
| 674 | skb->vlan_proto = htons(ETH_P_8021Q); |
| 675 | skb->vlan_tci = |
| 676 | (VLAN_CFI_MASK | (in->ifindex & VLAN_VID_MASK)); |
| 677 | |
| 678 | if (!hnat_priv->g_ppdev) |
| 679 | hnat_priv->g_ppdev = dev_get_by_name(&init_net, hnat_priv->ppd); |
| 680 | |
| 681 | skb->dev = hnat_priv->g_ppdev; |
| 682 | skb->protocol = htons(ETH_P_IP); |
| 683 | |
| 684 | dev_queue_xmit(skb); |
| 685 | |
| 686 | return 0; |
| 687 | } |
| 688 | return -1; |
| 689 | } |
| 690 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 691 | void mtk_464xlat_pre_process(struct sk_buff *skb) |
| 692 | { |
| 693 | struct foe_entry *foe; |
| 694 | |
developer | dd61ff4 | 2023-05-02 22:17:16 +0800 | [diff] [blame^] | 695 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 696 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 697 | return; |
| 698 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 699 | foe = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
| 700 | if (foe->bfib1.state != BIND && |
| 701 | skb_hnat_reason(skb) == HIT_UNBIND_RATE_REACH) |
| 702 | memcpy(&headroom[skb_hnat_entry(skb)], skb->head, |
| 703 | sizeof(struct hnat_desc)); |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 704 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 705 | if (foe->bfib1.state == BIND) |
| 706 | memset(&headroom[skb_hnat_entry(skb)], 0, |
| 707 | sizeof(struct hnat_desc)); |
| 708 | } |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 709 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 710 | static unsigned int is_ppe_support_type(struct sk_buff *skb) |
| 711 | { |
| 712 | struct ethhdr *eth = NULL; |
| 713 | struct iphdr *iph = NULL; |
| 714 | struct ipv6hdr *ip6h = NULL; |
| 715 | struct iphdr _iphdr; |
| 716 | |
| 717 | eth = eth_hdr(skb); |
developer | fd2d742 | 2021-06-09 17:09:39 +0800 | [diff] [blame] | 718 | if (!is_magic_tag_valid(skb) || !IS_SPACE_AVAILABLE_HEAD(skb) || |
developer | b254f76 | 2022-01-20 20:06:25 +0800 | [diff] [blame] | 719 | is_broadcast_ether_addr(eth->h_dest)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 720 | return 0; |
| 721 | |
| 722 | switch (ntohs(skb->protocol)) { |
| 723 | case ETH_P_IP: |
| 724 | iph = ip_hdr(skb); |
| 725 | |
| 726 | /* do not accelerate non tcp/udp traffic */ |
| 727 | if ((iph->protocol == IPPROTO_TCP) || |
| 728 | (iph->protocol == IPPROTO_UDP) || |
| 729 | (iph->protocol == IPPROTO_IPV6)) { |
| 730 | return 1; |
| 731 | } |
| 732 | |
| 733 | break; |
| 734 | case ETH_P_IPV6: |
| 735 | ip6h = ipv6_hdr(skb); |
| 736 | |
| 737 | if ((ip6h->nexthdr == NEXTHDR_TCP) || |
| 738 | (ip6h->nexthdr == NEXTHDR_UDP)) { |
| 739 | return 1; |
| 740 | } else if (ip6h->nexthdr == NEXTHDR_IPIP) { |
| 741 | iph = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 742 | sizeof(_iphdr), &_iphdr); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 743 | if (unlikely(!iph)) |
| 744 | return 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 745 | |
| 746 | if ((iph->protocol == IPPROTO_TCP) || |
| 747 | (iph->protocol == IPPROTO_UDP)) { |
| 748 | return 1; |
| 749 | } |
| 750 | |
| 751 | } |
| 752 | |
| 753 | break; |
| 754 | case ETH_P_8021Q: |
| 755 | return 1; |
| 756 | } |
| 757 | |
| 758 | return 0; |
| 759 | } |
| 760 | |
| 761 | static unsigned int |
| 762 | mtk_hnat_ipv6_nf_pre_routing(void *priv, struct sk_buff *skb, |
| 763 | const struct nf_hook_state *state) |
| 764 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 765 | if (!skb) |
| 766 | goto drop; |
| 767 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 768 | if (!is_ppe_support_type(skb)) { |
| 769 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 770 | return NF_ACCEPT; |
| 771 | } |
| 772 | |
| 773 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 774 | |
| 775 | pre_routing_print(skb, state->in, state->out, __func__); |
| 776 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 777 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 778 | if (do_ext2ge_fast_try(state->in, skb)) { |
| 779 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 780 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 781 | return NF_ACCEPT; |
| 782 | } |
| 783 | |
| 784 | /* packets form ge -> external device |
| 785 | * For standalone wan interface |
| 786 | */ |
| 787 | if (do_ge2ext_fast(state->in, skb)) { |
| 788 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 789 | return NF_STOLEN; |
| 790 | goto drop; |
| 791 | } |
| 792 | |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 793 | |
| 794 | #if !(defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 795 | /* MapE need remove ipv6 header and pingpong. */ |
| 796 | if (do_mape_w2l_fast(state->in, skb)) { |
| 797 | if (!do_hnat_mape_w2l_fast(skb, state->in, __func__)) |
| 798 | return NF_STOLEN; |
| 799 | else |
| 800 | return NF_ACCEPT; |
| 801 | } |
| 802 | |
| 803 | if (is_from_mape(skb)) |
| 804 | clr_from_extge(skb); |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 805 | #endif |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 806 | if (xlat_toggle) |
| 807 | mtk_464xlat_pre_process(skb); |
| 808 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 809 | return NF_ACCEPT; |
| 810 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 811 | if (skb) |
| 812 | printk_ratelimited(KERN_WARNING |
| 813 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 814 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 815 | __func__, state->in->name, skb_hnat_iface(skb), |
| 816 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 817 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 818 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 819 | |
| 820 | return NF_DROP; |
| 821 | } |
| 822 | |
| 823 | static unsigned int |
| 824 | mtk_hnat_ipv4_nf_pre_routing(void *priv, struct sk_buff *skb, |
| 825 | const struct nf_hook_state *state) |
| 826 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 827 | if (!skb) |
| 828 | goto drop; |
| 829 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 830 | if (!is_ppe_support_type(skb)) { |
| 831 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 832 | return NF_ACCEPT; |
| 833 | } |
| 834 | |
| 835 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 836 | |
| 837 | pre_routing_print(skb, state->in, state->out, __func__); |
| 838 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 839 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 840 | if (do_ext2ge_fast_try(state->in, skb)) { |
| 841 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 842 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 843 | return NF_ACCEPT; |
| 844 | } |
| 845 | |
| 846 | /* packets form ge -> external device |
| 847 | * For standalone wan interface |
| 848 | */ |
| 849 | if (do_ge2ext_fast(state->in, skb)) { |
| 850 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 851 | return NF_STOLEN; |
| 852 | goto drop; |
| 853 | } |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 854 | if (xlat_toggle) |
| 855 | mtk_464xlat_pre_process(skb); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 856 | |
| 857 | return NF_ACCEPT; |
| 858 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 859 | if (skb) |
| 860 | printk_ratelimited(KERN_WARNING |
| 861 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 862 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 863 | __func__, state->in->name, skb_hnat_iface(skb), |
| 864 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 865 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 866 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 867 | |
| 868 | return NF_DROP; |
| 869 | } |
| 870 | |
| 871 | static unsigned int |
| 872 | mtk_hnat_br_nf_local_in(void *priv, struct sk_buff *skb, |
| 873 | const struct nf_hook_state *state) |
| 874 | { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 875 | struct vlan_ethhdr *veth; |
| 876 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 877 | if (!skb) |
| 878 | goto drop; |
| 879 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 880 | if (IS_HQOS_MODE && hnat_priv->data->whnat) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 881 | veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
| 882 | |
| 883 | if (eth_hdr(skb)->h_proto == HQOS_MAGIC_TAG) { |
| 884 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 885 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 886 | } |
| 887 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 888 | |
| 889 | if (!HAS_HQOS_MAGIC_TAG(skb) && !is_ppe_support_type(skb)) { |
| 890 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 891 | return NF_ACCEPT; |
| 892 | } |
| 893 | |
| 894 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 895 | |
| 896 | pre_routing_print(skb, state->in, state->out, __func__); |
| 897 | |
| 898 | if (unlikely(debug_level >= 7)) { |
| 899 | hnat_cpu_reason_cnt(skb); |
| 900 | if (skb_hnat_reason(skb) == dbg_cpu_reason) |
| 901 | foe_dump_pkt(skb); |
| 902 | } |
| 903 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 904 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 905 | if ((skb_hnat_iface(skb) == FOE_MAGIC_EXT) && !is_from_extge(skb) && |
| 906 | !is_multicast_ether_addr(eth_hdr(skb)->h_dest)) { |
| 907 | if (!hnat_priv->g_ppdev) |
| 908 | hnat_priv->g_ppdev = dev_get_by_name(&init_net, hnat_priv->ppd); |
| 909 | |
| 910 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 911 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 912 | return NF_ACCEPT; |
| 913 | } |
| 914 | |
| 915 | if (hnat_priv->data->whnat) { |
| 916 | if (skb_hnat_iface(skb) == FOE_MAGIC_EXT) |
| 917 | clr_from_extge(skb); |
| 918 | |
| 919 | /* packets from external devices -> xxx ,step 2, learning stage */ |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 920 | if (do_ext2ge_fast_learn(state->in, skb) && (!qos_toggle || |
| 921 | (qos_toggle && eth_hdr(skb)->h_proto != HQOS_MAGIC_TAG))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 922 | if (!do_hnat_ext_to_ge2(skb, __func__)) |
| 923 | return NF_STOLEN; |
| 924 | goto drop; |
| 925 | } |
| 926 | |
| 927 | /* packets form ge -> external device */ |
| 928 | if (do_ge2ext_fast(state->in, skb)) { |
| 929 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 930 | return NF_STOLEN; |
| 931 | goto drop; |
| 932 | } |
| 933 | } |
| 934 | |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 935 | #if !(defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 936 | /* MapE need remove ipv6 header and pingpong. (bridge mode) */ |
| 937 | if (do_mape_w2l_fast(state->in, skb)) { |
| 938 | if (!do_hnat_mape_w2l_fast(skb, state->in, __func__)) |
| 939 | return NF_STOLEN; |
| 940 | else |
| 941 | return NF_ACCEPT; |
| 942 | } |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 943 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 944 | return NF_ACCEPT; |
| 945 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 946 | if (skb) |
| 947 | printk_ratelimited(KERN_WARNING |
| 948 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 949 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 950 | __func__, state->in->name, skb_hnat_iface(skb), |
| 951 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 952 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 953 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 954 | |
| 955 | return NF_DROP; |
| 956 | } |
| 957 | |
| 958 | static unsigned int hnat_ipv6_get_nexthop(struct sk_buff *skb, |
| 959 | const struct net_device *out, |
| 960 | struct flow_offload_hw_path *hw_path) |
| 961 | { |
| 962 | const struct in6_addr *ipv6_nexthop; |
| 963 | struct neighbour *neigh = NULL; |
| 964 | struct dst_entry *dst = skb_dst(skb); |
| 965 | struct ethhdr *eth; |
| 966 | |
| 967 | if (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) { |
| 968 | memcpy(eth_hdr(skb)->h_source, hw_path->eth_src, ETH_ALEN); |
| 969 | memcpy(eth_hdr(skb)->h_dest, hw_path->eth_dest, ETH_ALEN); |
| 970 | return 0; |
| 971 | } |
| 972 | |
| 973 | rcu_read_lock_bh(); |
| 974 | ipv6_nexthop = |
| 975 | rt6_nexthop((struct rt6_info *)dst, &ipv6_hdr(skb)->daddr); |
| 976 | neigh = __ipv6_neigh_lookup_noref(dst->dev, ipv6_nexthop); |
| 977 | if (unlikely(!neigh)) { |
| 978 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI6)\n", __func__, |
| 979 | &ipv6_hdr(skb)->daddr); |
| 980 | rcu_read_unlock_bh(); |
| 981 | return -1; |
| 982 | } |
| 983 | |
| 984 | /* why do we get all zero ethernet address ? */ |
| 985 | if (!is_valid_ether_addr(neigh->ha)) { |
| 986 | rcu_read_unlock_bh(); |
| 987 | return -1; |
| 988 | } |
| 989 | |
| 990 | if (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPIP) { |
| 991 | /*copy ether type for DS-Lite and MapE */ |
| 992 | eth = (struct ethhdr *)(skb->data - ETH_HLEN); |
| 993 | eth->h_proto = skb->protocol; |
| 994 | } else { |
| 995 | eth = eth_hdr(skb); |
| 996 | } |
| 997 | |
| 998 | ether_addr_copy(eth->h_dest, neigh->ha); |
| 999 | ether_addr_copy(eth->h_source, out->dev_addr); |
| 1000 | |
| 1001 | rcu_read_unlock_bh(); |
| 1002 | |
| 1003 | return 0; |
| 1004 | } |
| 1005 | |
| 1006 | static unsigned int hnat_ipv4_get_nexthop(struct sk_buff *skb, |
| 1007 | const struct net_device *out, |
| 1008 | struct flow_offload_hw_path *hw_path) |
| 1009 | { |
| 1010 | u32 nexthop; |
| 1011 | struct neighbour *neigh; |
| 1012 | struct dst_entry *dst = skb_dst(skb); |
| 1013 | struct rtable *rt = (struct rtable *)dst; |
| 1014 | struct net_device *dev = (__force struct net_device *)out; |
| 1015 | |
| 1016 | if (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) { |
| 1017 | memcpy(eth_hdr(skb)->h_source, hw_path->eth_src, ETH_ALEN); |
| 1018 | memcpy(eth_hdr(skb)->h_dest, hw_path->eth_dest, ETH_ALEN); |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
| 1022 | rcu_read_lock_bh(); |
| 1023 | nexthop = (__force u32)rt_nexthop(rt, ip_hdr(skb)->daddr); |
| 1024 | neigh = __ipv4_neigh_lookup_noref(dev, nexthop); |
| 1025 | if (unlikely(!neigh)) { |
| 1026 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI4)\n", __func__, |
| 1027 | &ip_hdr(skb)->daddr); |
| 1028 | rcu_read_unlock_bh(); |
| 1029 | return -1; |
| 1030 | } |
| 1031 | |
| 1032 | /* why do we get all zero ethernet address ? */ |
| 1033 | if (!is_valid_ether_addr(neigh->ha)) { |
| 1034 | rcu_read_unlock_bh(); |
| 1035 | return -1; |
| 1036 | } |
| 1037 | |
| 1038 | memcpy(eth_hdr(skb)->h_dest, neigh->ha, ETH_ALEN); |
| 1039 | memcpy(eth_hdr(skb)->h_source, out->dev_addr, ETH_ALEN); |
| 1040 | |
| 1041 | rcu_read_unlock_bh(); |
| 1042 | |
| 1043 | return 0; |
| 1044 | } |
| 1045 | |
| 1046 | static u16 ppe_get_chkbase(struct iphdr *iph) |
| 1047 | { |
| 1048 | u16 org_chksum = ntohs(iph->check); |
| 1049 | u16 org_tot_len = ntohs(iph->tot_len); |
| 1050 | u16 org_id = ntohs(iph->id); |
| 1051 | u16 chksum_tmp, tot_len_tmp, id_tmp; |
| 1052 | u32 tmp = 0; |
| 1053 | u16 chksum_base = 0; |
| 1054 | |
| 1055 | chksum_tmp = ~(org_chksum); |
| 1056 | tot_len_tmp = ~(org_tot_len); |
| 1057 | id_tmp = ~(org_id); |
| 1058 | tmp = chksum_tmp + tot_len_tmp + id_tmp; |
| 1059 | tmp = ((tmp >> 16) & 0x7) + (tmp & 0xFFFF); |
| 1060 | tmp = ((tmp >> 16) & 0x7) + (tmp & 0xFFFF); |
| 1061 | chksum_base = tmp & 0xFFFF; |
| 1062 | |
| 1063 | return chksum_base; |
| 1064 | } |
| 1065 | |
| 1066 | struct foe_entry ppe_fill_L2_info(struct ethhdr *eth, struct foe_entry entry, |
| 1067 | struct flow_offload_hw_path *hw_path) |
| 1068 | { |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1069 | switch ((int)entry.bfib1.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1070 | case IPV4_HNAPT: |
| 1071 | case IPV4_HNAT: |
| 1072 | entry.ipv4_hnapt.dmac_hi = swab32(*((u32 *)eth->h_dest)); |
| 1073 | entry.ipv4_hnapt.dmac_lo = swab16(*((u16 *)ð->h_dest[4])); |
| 1074 | entry.ipv4_hnapt.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1075 | entry.ipv4_hnapt.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1076 | entry.ipv4_hnapt.pppoe_id = hw_path->pppoe_sid; |
| 1077 | break; |
| 1078 | case IPV4_DSLITE: |
| 1079 | case IPV4_MAP_E: |
| 1080 | case IPV6_6RD: |
| 1081 | case IPV6_5T_ROUTE: |
| 1082 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1083 | case IPV6_HNAPT: |
| 1084 | case IPV6_HNAT: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1085 | entry.ipv6_5t_route.dmac_hi = swab32(*((u32 *)eth->h_dest)); |
| 1086 | entry.ipv6_5t_route.dmac_lo = swab16(*((u16 *)ð->h_dest[4])); |
| 1087 | entry.ipv6_5t_route.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1088 | entry.ipv6_5t_route.smac_lo = |
| 1089 | swab16(*((u16 *)ð->h_source[4])); |
| 1090 | entry.ipv6_5t_route.pppoe_id = hw_path->pppoe_sid; |
| 1091 | break; |
| 1092 | } |
| 1093 | return entry; |
| 1094 | } |
| 1095 | |
| 1096 | struct foe_entry ppe_fill_info_blk(struct ethhdr *eth, struct foe_entry entry, |
| 1097 | struct flow_offload_hw_path *hw_path) |
| 1098 | { |
| 1099 | entry.bfib1.psn = (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) ? 1 : 0; |
| 1100 | entry.bfib1.vlan_layer += (hw_path->flags & FLOW_OFFLOAD_PATH_VLAN) ? 1 : 0; |
| 1101 | entry.bfib1.vpm = (entry.bfib1.vlan_layer) ? 1 : 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1102 | entry.bfib1.cah = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1103 | entry.bfib1.time_stamp = (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1104 | hnat_priv->data->version == MTK_HNAT_V3) ? |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1105 | readl(hnat_priv->fe_base + 0x0010) & (0xFF) : |
| 1106 | readl(hnat_priv->fe_base + 0x0010) & (0x7FFF); |
| 1107 | |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1108 | switch ((int)entry.bfib1.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1109 | case IPV4_HNAPT: |
| 1110 | case IPV4_HNAT: |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1111 | if (hnat_priv->data->mcast && |
| 1112 | is_multicast_ether_addr(ð->h_dest[0])) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1113 | entry.ipv4_hnapt.iblk2.mcast = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1114 | if (hnat_priv->data->version == MTK_HNAT_V1_3) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1115 | entry.bfib1.sta = 1; |
| 1116 | entry.ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 1117 | } |
| 1118 | } else { |
| 1119 | entry.ipv4_hnapt.iblk2.mcast = 0; |
| 1120 | } |
| 1121 | |
| 1122 | entry.ipv4_hnapt.iblk2.port_ag = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1123 | (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1124 | hnat_priv->data->version == MTK_HNAT_V3) ? 0xf : 0x3f; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1125 | break; |
| 1126 | case IPV4_DSLITE: |
| 1127 | case IPV4_MAP_E: |
| 1128 | case IPV6_6RD: |
| 1129 | case IPV6_5T_ROUTE: |
| 1130 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1131 | case IPV6_HNAPT: |
| 1132 | case IPV6_HNAT: |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1133 | if (hnat_priv->data->mcast && |
| 1134 | is_multicast_ether_addr(ð->h_dest[0])) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1135 | entry.ipv6_5t_route.iblk2.mcast = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1136 | if (hnat_priv->data->version == MTK_HNAT_V1_3) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1137 | entry.bfib1.sta = 1; |
| 1138 | entry.ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 1139 | } |
| 1140 | } else { |
| 1141 | entry.ipv6_5t_route.iblk2.mcast = 0; |
| 1142 | } |
| 1143 | |
| 1144 | entry.ipv6_5t_route.iblk2.port_ag = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1145 | (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1146 | hnat_priv->data->version == MTK_HNAT_V3) ? 0xf : 0x3f; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1147 | break; |
| 1148 | } |
| 1149 | return entry; |
| 1150 | } |
| 1151 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1152 | static unsigned int skb_to_hnat_info(struct sk_buff *skb, |
| 1153 | const struct net_device *dev, |
| 1154 | struct foe_entry *foe, |
| 1155 | struct flow_offload_hw_path *hw_path) |
| 1156 | { |
| 1157 | struct foe_entry entry = { 0 }; |
| 1158 | int whnat = IS_WHNAT(dev); |
| 1159 | struct ethhdr *eth; |
| 1160 | struct iphdr *iph; |
| 1161 | struct ipv6hdr *ip6h; |
| 1162 | struct tcpudphdr _ports; |
| 1163 | const struct tcpudphdr *pptr; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1164 | struct nf_conn *ct; |
| 1165 | enum ip_conntrack_info ctinfo; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1166 | u32 gmac = NR_DISCARD; |
| 1167 | int udp = 0; |
| 1168 | u32 qid = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1169 | u32 port_id = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1170 | int mape = 0; |
| 1171 | |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1172 | ct = nf_ct_get(skb, &ctinfo); |
| 1173 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1174 | if (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPIP) |
| 1175 | /* point to ethernet header for DS-Lite and MapE */ |
| 1176 | eth = (struct ethhdr *)(skb->data - ETH_HLEN); |
| 1177 | else |
| 1178 | eth = eth_hdr(skb); |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1179 | |
| 1180 | /*do not bind multicast if PPE mcast not enable*/ |
| 1181 | if (!hnat_priv->data->mcast && is_multicast_ether_addr(eth->h_dest)) |
| 1182 | return 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1183 | |
| 1184 | entry.bfib1.pkt_type = foe->udib1.pkt_type; /* Get packte type state*/ |
developer | f94d886 | 2022-03-29 10:11:17 +0800 | [diff] [blame] | 1185 | entry.bfib1.state = foe->udib1.state; |
| 1186 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1187 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1188 | entry.bfib1.sp = foe->udib1.sp; |
| 1189 | #endif |
| 1190 | |
| 1191 | switch (ntohs(eth->h_proto)) { |
| 1192 | case ETH_P_IP: |
| 1193 | iph = ip_hdr(skb); |
| 1194 | switch (iph->protocol) { |
| 1195 | case IPPROTO_UDP: |
| 1196 | udp = 1; |
| 1197 | /* fallthrough */ |
| 1198 | case IPPROTO_TCP: |
| 1199 | entry.ipv4_hnapt.etype = htons(ETH_P_IP); |
| 1200 | |
| 1201 | /* DS-Lite WAN->LAN */ |
| 1202 | if (entry.ipv4_hnapt.bfib1.pkt_type == IPV4_DSLITE || |
| 1203 | entry.ipv4_hnapt.bfib1.pkt_type == IPV4_MAP_E) { |
| 1204 | entry.ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 1205 | entry.ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 1206 | entry.ipv4_dslite.sport = |
| 1207 | foe->ipv4_dslite.sport; |
| 1208 | entry.ipv4_dslite.dport = |
| 1209 | foe->ipv4_dslite.dport; |
| 1210 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1211 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1212 | if (entry.bfib1.pkt_type == IPV4_MAP_E) { |
| 1213 | pptr = skb_header_pointer(skb, |
| 1214 | iph->ihl * 4, |
| 1215 | sizeof(_ports), |
| 1216 | &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 1217 | if (unlikely(!pptr)) |
| 1218 | return -1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1219 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1220 | entry.ipv4_mape.new_sip = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1221 | ntohl(iph->saddr); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1222 | entry.ipv4_mape.new_dip = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1223 | ntohl(iph->daddr); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1224 | entry.ipv4_mape.new_sport = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1225 | ntohs(pptr->src); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1226 | entry.ipv4_mape.new_dport = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1227 | ntohs(pptr->dst); |
| 1228 | } |
| 1229 | #endif |
| 1230 | |
| 1231 | entry.ipv4_dslite.tunnel_sipv6_0 = |
| 1232 | foe->ipv4_dslite.tunnel_sipv6_0; |
| 1233 | entry.ipv4_dslite.tunnel_sipv6_1 = |
| 1234 | foe->ipv4_dslite.tunnel_sipv6_1; |
| 1235 | entry.ipv4_dslite.tunnel_sipv6_2 = |
| 1236 | foe->ipv4_dslite.tunnel_sipv6_2; |
| 1237 | entry.ipv4_dslite.tunnel_sipv6_3 = |
| 1238 | foe->ipv4_dslite.tunnel_sipv6_3; |
| 1239 | |
| 1240 | entry.ipv4_dslite.tunnel_dipv6_0 = |
| 1241 | foe->ipv4_dslite.tunnel_dipv6_0; |
| 1242 | entry.ipv4_dslite.tunnel_dipv6_1 = |
| 1243 | foe->ipv4_dslite.tunnel_dipv6_1; |
| 1244 | entry.ipv4_dslite.tunnel_dipv6_2 = |
| 1245 | foe->ipv4_dslite.tunnel_dipv6_2; |
| 1246 | entry.ipv4_dslite.tunnel_dipv6_3 = |
| 1247 | foe->ipv4_dslite.tunnel_dipv6_3; |
| 1248 | |
| 1249 | entry.ipv4_dslite.bfib1.rmt = 1; |
| 1250 | entry.ipv4_dslite.iblk2.dscp = iph->tos; |
| 1251 | entry.ipv4_dslite.vlan1 = hw_path->vlan_id; |
| 1252 | if (hnat_priv->data->per_flow_accounting) |
| 1253 | entry.ipv4_dslite.iblk2.mibf = 1; |
| 1254 | |
| 1255 | } else { |
| 1256 | entry.ipv4_hnapt.iblk2.dscp = iph->tos; |
| 1257 | if (hnat_priv->data->per_flow_accounting) |
| 1258 | entry.ipv4_hnapt.iblk2.mibf = 1; |
| 1259 | |
| 1260 | entry.ipv4_hnapt.vlan1 = hw_path->vlan_id; |
| 1261 | |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1262 | if (skb_vlan_tag_present(skb)) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1263 | entry.bfib1.vlan_layer += 1; |
| 1264 | |
| 1265 | if (entry.ipv4_hnapt.vlan1) |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1266 | entry.ipv4_hnapt.vlan2 = |
| 1267 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1268 | else |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1269 | entry.ipv4_hnapt.vlan1 = |
| 1270 | skb->vlan_tci; |
| 1271 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1272 | |
| 1273 | entry.ipv4_hnapt.sip = foe->ipv4_hnapt.sip; |
| 1274 | entry.ipv4_hnapt.dip = foe->ipv4_hnapt.dip; |
| 1275 | entry.ipv4_hnapt.sport = foe->ipv4_hnapt.sport; |
| 1276 | entry.ipv4_hnapt.dport = foe->ipv4_hnapt.dport; |
| 1277 | |
| 1278 | entry.ipv4_hnapt.new_sip = ntohl(iph->saddr); |
| 1279 | entry.ipv4_hnapt.new_dip = ntohl(iph->daddr); |
| 1280 | } |
| 1281 | |
| 1282 | entry.ipv4_hnapt.bfib1.udp = udp; |
| 1283 | if (IS_IPV4_HNAPT(foe)) { |
| 1284 | pptr = skb_header_pointer(skb, iph->ihl * 4, |
| 1285 | sizeof(_ports), |
| 1286 | &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 1287 | if (unlikely(!pptr)) |
| 1288 | return -1; |
| 1289 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1290 | entry.ipv4_hnapt.new_sport = ntohs(pptr->src); |
| 1291 | entry.ipv4_hnapt.new_dport = ntohs(pptr->dst); |
| 1292 | } |
| 1293 | |
| 1294 | break; |
| 1295 | |
| 1296 | default: |
| 1297 | return -1; |
| 1298 | } |
| 1299 | trace_printk( |
| 1300 | "[%s]skb->head=%p, skb->data=%p,ip_hdr=%p, skb->len=%d, skb->data_len=%d\n", |
| 1301 | __func__, skb->head, skb->data, iph, skb->len, |
| 1302 | skb->data_len); |
| 1303 | break; |
| 1304 | |
| 1305 | case ETH_P_IPV6: |
| 1306 | ip6h = ipv6_hdr(skb); |
| 1307 | switch (ip6h->nexthdr) { |
| 1308 | case NEXTHDR_UDP: |
| 1309 | udp = 1; |
| 1310 | /* fallthrough */ |
| 1311 | case NEXTHDR_TCP: /* IPv6-5T or IPv6-3T */ |
| 1312 | entry.ipv6_5t_route.etype = htons(ETH_P_IPV6); |
| 1313 | |
| 1314 | entry.ipv6_5t_route.vlan1 = hw_path->vlan_id; |
| 1315 | |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1316 | if (skb_vlan_tag_present(skb)) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1317 | entry.bfib1.vlan_layer += 1; |
| 1318 | |
| 1319 | if (entry.ipv6_5t_route.vlan1) |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1320 | entry.ipv6_5t_route.vlan2 = |
| 1321 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1322 | else |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1323 | entry.ipv6_5t_route.vlan1 = |
| 1324 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1325 | } |
| 1326 | |
| 1327 | if (hnat_priv->data->per_flow_accounting) |
| 1328 | entry.ipv6_5t_route.iblk2.mibf = 1; |
| 1329 | entry.ipv6_5t_route.bfib1.udp = udp; |
| 1330 | |
| 1331 | if (IS_IPV6_6RD(foe)) { |
| 1332 | entry.ipv6_5t_route.bfib1.rmt = 1; |
| 1333 | entry.ipv6_6rd.tunnel_sipv4 = |
| 1334 | foe->ipv6_6rd.tunnel_sipv4; |
| 1335 | entry.ipv6_6rd.tunnel_dipv4 = |
| 1336 | foe->ipv6_6rd.tunnel_dipv4; |
| 1337 | } |
| 1338 | |
| 1339 | entry.ipv6_3t_route.ipv6_sip0 = |
| 1340 | foe->ipv6_3t_route.ipv6_sip0; |
| 1341 | entry.ipv6_3t_route.ipv6_sip1 = |
| 1342 | foe->ipv6_3t_route.ipv6_sip1; |
| 1343 | entry.ipv6_3t_route.ipv6_sip2 = |
| 1344 | foe->ipv6_3t_route.ipv6_sip2; |
| 1345 | entry.ipv6_3t_route.ipv6_sip3 = |
| 1346 | foe->ipv6_3t_route.ipv6_sip3; |
| 1347 | |
| 1348 | entry.ipv6_3t_route.ipv6_dip0 = |
| 1349 | foe->ipv6_3t_route.ipv6_dip0; |
| 1350 | entry.ipv6_3t_route.ipv6_dip1 = |
| 1351 | foe->ipv6_3t_route.ipv6_dip1; |
| 1352 | entry.ipv6_3t_route.ipv6_dip2 = |
| 1353 | foe->ipv6_3t_route.ipv6_dip2; |
| 1354 | entry.ipv6_3t_route.ipv6_dip3 = |
| 1355 | foe->ipv6_3t_route.ipv6_dip3; |
| 1356 | |
developer | 729f027 | 2021-06-09 17:28:38 +0800 | [diff] [blame] | 1357 | if (IS_IPV6_3T_ROUTE(foe)) { |
| 1358 | entry.ipv6_3t_route.prot = |
| 1359 | foe->ipv6_3t_route.prot; |
| 1360 | entry.ipv6_3t_route.hph = |
| 1361 | foe->ipv6_3t_route.hph; |
| 1362 | } |
| 1363 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1364 | if (IS_IPV6_5T_ROUTE(foe) || IS_IPV6_6RD(foe)) { |
| 1365 | entry.ipv6_5t_route.sport = |
| 1366 | foe->ipv6_5t_route.sport; |
| 1367 | entry.ipv6_5t_route.dport = |
| 1368 | foe->ipv6_5t_route.dport; |
| 1369 | } |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1370 | |
| 1371 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
| 1372 | if (ct && (ct->status & IPS_SRC_NAT)) { |
| 1373 | entry.bfib1.pkt_type = IPV6_HNAPT; |
| 1374 | |
| 1375 | if (IS_WAN(dev) || IS_DSA_WAN(dev)) { |
| 1376 | entry.ipv6_hnapt.eg_ipv6_dir = |
| 1377 | IPV6_SNAT; |
| 1378 | entry.ipv6_hnapt.new_ipv6_ip0 = |
| 1379 | ntohl(ip6h->saddr.s6_addr32[0]); |
| 1380 | entry.ipv6_hnapt.new_ipv6_ip1 = |
| 1381 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 1382 | entry.ipv6_hnapt.new_ipv6_ip2 = |
| 1383 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 1384 | entry.ipv6_hnapt.new_ipv6_ip3 = |
| 1385 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 1386 | } else { |
| 1387 | entry.ipv6_hnapt.eg_ipv6_dir = |
| 1388 | IPV6_DNAT; |
| 1389 | entry.ipv6_hnapt.new_ipv6_ip0 = |
| 1390 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 1391 | entry.ipv6_hnapt.new_ipv6_ip1 = |
| 1392 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 1393 | entry.ipv6_hnapt.new_ipv6_ip2 = |
| 1394 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 1395 | entry.ipv6_hnapt.new_ipv6_ip3 = |
| 1396 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 1397 | } |
| 1398 | |
| 1399 | pptr = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 1400 | sizeof(_ports), |
| 1401 | &_ports); |
| 1402 | if (unlikely(!pptr)) |
| 1403 | return -1; |
| 1404 | |
| 1405 | entry.ipv6_hnapt.new_sport = ntohs(pptr->src); |
| 1406 | entry.ipv6_hnapt.new_dport = ntohs(pptr->dst); |
| 1407 | } |
| 1408 | #endif |
| 1409 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1410 | entry.ipv6_5t_route.iblk2.dscp = |
| 1411 | (ip6h->priority << 4 | |
| 1412 | (ip6h->flow_lbl[0] >> 4)); |
| 1413 | break; |
| 1414 | |
| 1415 | case NEXTHDR_IPIP: |
| 1416 | if ((!mape_toggle && |
| 1417 | entry.bfib1.pkt_type == IPV4_DSLITE) || |
| 1418 | (mape_toggle && |
| 1419 | entry.bfib1.pkt_type == IPV4_MAP_E)) { |
| 1420 | /* DS-Lite LAN->WAN */ |
| 1421 | entry.ipv4_dslite.bfib1.udp = |
| 1422 | foe->ipv4_dslite.bfib1.udp; |
| 1423 | entry.ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 1424 | entry.ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 1425 | entry.ipv4_dslite.sport = |
| 1426 | foe->ipv4_dslite.sport; |
| 1427 | entry.ipv4_dslite.dport = |
| 1428 | foe->ipv4_dslite.dport; |
| 1429 | |
| 1430 | entry.ipv4_dslite.tunnel_sipv6_0 = |
| 1431 | ntohl(ip6h->saddr.s6_addr32[0]); |
| 1432 | entry.ipv4_dslite.tunnel_sipv6_1 = |
| 1433 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 1434 | entry.ipv4_dslite.tunnel_sipv6_2 = |
| 1435 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 1436 | entry.ipv4_dslite.tunnel_sipv6_3 = |
| 1437 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 1438 | |
| 1439 | entry.ipv4_dslite.tunnel_dipv6_0 = |
| 1440 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 1441 | entry.ipv4_dslite.tunnel_dipv6_1 = |
| 1442 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 1443 | entry.ipv4_dslite.tunnel_dipv6_2 = |
| 1444 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 1445 | entry.ipv4_dslite.tunnel_dipv6_3 = |
| 1446 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 1447 | |
| 1448 | ppe_fill_flow_lbl(&entry, ip6h); |
| 1449 | |
| 1450 | entry.ipv4_dslite.priority = ip6h->priority; |
| 1451 | entry.ipv4_dslite.hop_limit = ip6h->hop_limit; |
| 1452 | entry.ipv4_dslite.vlan1 = hw_path->vlan_id; |
| 1453 | if (hnat_priv->data->per_flow_accounting) |
| 1454 | entry.ipv4_dslite.iblk2.mibf = 1; |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1455 | /* Map-E LAN->WAN record inner IPv4 header info. */ |
developer | 8c707df | 2022-10-24 14:09:00 +0800 | [diff] [blame] | 1456 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1457 | if (mape_toggle) { |
| 1458 | entry.ipv4_dslite.iblk2.dscp = foe->ipv4_dslite.iblk2.dscp; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1459 | entry.ipv4_mape.new_sip = foe->ipv4_mape.new_sip; |
| 1460 | entry.ipv4_mape.new_dip = foe->ipv4_mape.new_dip; |
| 1461 | entry.ipv4_mape.new_sport = foe->ipv4_mape.new_sport; |
| 1462 | entry.ipv4_mape.new_dport = foe->ipv4_mape.new_dport; |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1463 | } |
| 1464 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1465 | } else if (mape_toggle && |
| 1466 | entry.bfib1.pkt_type == IPV4_HNAPT) { |
| 1467 | /* MapE LAN -> WAN */ |
| 1468 | mape = 1; |
| 1469 | entry.ipv4_hnapt.iblk2.dscp = |
| 1470 | foe->ipv4_hnapt.iblk2.dscp; |
| 1471 | if (hnat_priv->data->per_flow_accounting) |
| 1472 | entry.ipv4_hnapt.iblk2.mibf = 1; |
| 1473 | |
developer | bb81641 | 2021-06-11 15:43:44 +0800 | [diff] [blame] | 1474 | if (IS_GMAC1_MODE) |
| 1475 | entry.ipv4_hnapt.vlan1 = 1; |
| 1476 | else |
| 1477 | entry.ipv4_hnapt.vlan1 = hw_path->vlan_id; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1478 | |
| 1479 | entry.ipv4_hnapt.sip = foe->ipv4_hnapt.sip; |
| 1480 | entry.ipv4_hnapt.dip = foe->ipv4_hnapt.dip; |
| 1481 | entry.ipv4_hnapt.sport = foe->ipv4_hnapt.sport; |
| 1482 | entry.ipv4_hnapt.dport = foe->ipv4_hnapt.dport; |
| 1483 | |
| 1484 | entry.ipv4_hnapt.new_sip = |
| 1485 | foe->ipv4_hnapt.new_sip; |
| 1486 | entry.ipv4_hnapt.new_dip = |
| 1487 | foe->ipv4_hnapt.new_dip; |
| 1488 | entry.ipv4_hnapt.etype = htons(ETH_P_IP); |
| 1489 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1490 | if (IS_HQOS_MODE) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1491 | entry.ipv4_hnapt.iblk2.qid = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1492 | (hnat_priv->data->version == |
| 1493 | MTK_HNAT_V2 || |
| 1494 | hnat_priv->data->version == |
| 1495 | MTK_HNAT_V3) ? |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1496 | skb->mark & 0x7f : skb->mark & 0xf; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1497 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1498 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1499 | (IS_HQOS_DL_MODE && |
| 1500 | IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1501 | (IS_PPPQ_MODE && |
| 1502 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1503 | entry.ipv4_hnapt.tport_id = 1; |
| 1504 | else |
| 1505 | entry.ipv4_hnapt.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1506 | #else |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1507 | entry.ipv4_hnapt.iblk2.fqos = 1; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1508 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1509 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1510 | |
| 1511 | entry.ipv4_hnapt.bfib1.udp = |
| 1512 | foe->ipv4_hnapt.bfib1.udp; |
| 1513 | |
| 1514 | entry.ipv4_hnapt.new_sport = |
| 1515 | foe->ipv4_hnapt.new_sport; |
| 1516 | entry.ipv4_hnapt.new_dport = |
| 1517 | foe->ipv4_hnapt.new_dport; |
| 1518 | mape_l2w_v6h = *ip6h; |
| 1519 | } |
| 1520 | break; |
| 1521 | |
| 1522 | default: |
| 1523 | return -1; |
| 1524 | } |
| 1525 | |
| 1526 | trace_printk( |
| 1527 | "[%s]skb->head=%p, skb->data=%p,ipv6_hdr=%p, skb->len=%d, skb->data_len=%d\n", |
| 1528 | __func__, skb->head, skb->data, ip6h, skb->len, |
| 1529 | skb->data_len); |
| 1530 | break; |
| 1531 | |
| 1532 | default: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1533 | iph = ip_hdr(skb); |
| 1534 | switch (entry.bfib1.pkt_type) { |
| 1535 | case IPV6_6RD: /* 6RD LAN->WAN */ |
| 1536 | entry.ipv6_6rd.ipv6_sip0 = foe->ipv6_6rd.ipv6_sip0; |
| 1537 | entry.ipv6_6rd.ipv6_sip1 = foe->ipv6_6rd.ipv6_sip1; |
| 1538 | entry.ipv6_6rd.ipv6_sip2 = foe->ipv6_6rd.ipv6_sip2; |
| 1539 | entry.ipv6_6rd.ipv6_sip3 = foe->ipv6_6rd.ipv6_sip3; |
| 1540 | |
| 1541 | entry.ipv6_6rd.ipv6_dip0 = foe->ipv6_6rd.ipv6_dip0; |
| 1542 | entry.ipv6_6rd.ipv6_dip1 = foe->ipv6_6rd.ipv6_dip1; |
| 1543 | entry.ipv6_6rd.ipv6_dip2 = foe->ipv6_6rd.ipv6_dip2; |
| 1544 | entry.ipv6_6rd.ipv6_dip3 = foe->ipv6_6rd.ipv6_dip3; |
| 1545 | |
| 1546 | entry.ipv6_6rd.sport = foe->ipv6_6rd.sport; |
| 1547 | entry.ipv6_6rd.dport = foe->ipv6_6rd.dport; |
| 1548 | entry.ipv6_6rd.tunnel_sipv4 = ntohl(iph->saddr); |
| 1549 | entry.ipv6_6rd.tunnel_dipv4 = ntohl(iph->daddr); |
| 1550 | entry.ipv6_6rd.hdr_chksum = ppe_get_chkbase(iph); |
| 1551 | entry.ipv6_6rd.flag = (ntohs(iph->frag_off) >> 13); |
| 1552 | entry.ipv6_6rd.ttl = iph->ttl; |
| 1553 | entry.ipv6_6rd.dscp = iph->tos; |
| 1554 | entry.ipv6_6rd.per_flow_6rd_id = 1; |
| 1555 | entry.ipv6_6rd.vlan1 = hw_path->vlan_id; |
| 1556 | if (hnat_priv->data->per_flow_accounting) |
| 1557 | entry.ipv6_6rd.iblk2.mibf = 1; |
| 1558 | break; |
| 1559 | |
| 1560 | default: |
| 1561 | return -1; |
| 1562 | } |
| 1563 | } |
| 1564 | |
| 1565 | /* Fill Layer2 Info.*/ |
| 1566 | entry = ppe_fill_L2_info(eth, entry, hw_path); |
| 1567 | |
| 1568 | /* Fill Info Blk*/ |
| 1569 | entry = ppe_fill_info_blk(eth, entry, hw_path); |
| 1570 | |
| 1571 | if (IS_LAN(dev)) { |
| 1572 | if (IS_DSA_LAN(dev)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1573 | port_id = hnat_dsa_fill_stag(dev, &entry, hw_path, |
| 1574 | ntohs(eth->h_proto), |
| 1575 | mape); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1576 | |
| 1577 | if (IS_BOND_MODE) |
| 1578 | gmac = ((skb_hnat_entry(skb) >> 1) % hnat_priv->gmac_num) ? |
| 1579 | NR_GMAC2_PORT : NR_GMAC1_PORT; |
| 1580 | else |
| 1581 | gmac = NR_GMAC1_PORT; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1582 | } else if (IS_LAN2(dev)) { |
| 1583 | gmac = NR_GMAC3_PORT; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1584 | } else if (IS_WAN(dev)) { |
| 1585 | if (IS_DSA_WAN(dev)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1586 | port_id = hnat_dsa_fill_stag(dev,&entry, hw_path, |
| 1587 | ntohs(eth->h_proto), |
| 1588 | mape); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1589 | if (mape_toggle && mape == 1) { |
| 1590 | gmac = NR_PDMA_PORT; |
| 1591 | /* Set act_dp = wan_dev */ |
| 1592 | entry.ipv4_hnapt.act_dp = dev->ifindex; |
| 1593 | } else { |
| 1594 | gmac = (IS_GMAC1_MODE) ? NR_GMAC1_PORT : NR_GMAC2_PORT; |
| 1595 | } |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1596 | } else if (IS_EXT(dev) && (FROM_GE_PPD(skb) || FROM_GE_LAN_GRP(skb) || |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1597 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb) || FROM_WED(skb))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1598 | if (!hnat_priv->data->whnat && IS_GMAC1_MODE) { |
| 1599 | entry.bfib1.vpm = 1; |
| 1600 | entry.bfib1.vlan_layer = 1; |
| 1601 | |
| 1602 | if (FROM_GE_LAN(skb)) |
| 1603 | entry.ipv4_hnapt.vlan1 = 1; |
| 1604 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1605 | entry.ipv4_hnapt.vlan1 = 2; |
| 1606 | } |
| 1607 | |
| 1608 | trace_printk("learn of lan or wan(iif=%x) --> %s(ext)\n", |
| 1609 | skb_hnat_iface(skb), dev->name); |
| 1610 | /* To CPU then stolen by pre-routing hant hook of LAN/WAN |
| 1611 | * Current setting is PDMA RX. |
| 1612 | */ |
| 1613 | gmac = NR_PDMA_PORT; |
| 1614 | if (IS_IPV4_GRP(foe)) |
| 1615 | entry.ipv4_hnapt.act_dp = dev->ifindex; |
| 1616 | else |
| 1617 | entry.ipv6_5t_route.act_dp = dev->ifindex; |
| 1618 | } else { |
| 1619 | printk_ratelimited(KERN_WARNING |
| 1620 | "Unknown case of dp, iif=%x --> %s\n", |
| 1621 | skb_hnat_iface(skb), dev->name); |
| 1622 | |
| 1623 | return 0; |
| 1624 | } |
| 1625 | |
developer | afff566 | 2022-06-29 10:09:56 +0800 | [diff] [blame] | 1626 | if (IS_HQOS_MODE || skb->mark >= MAX_PPPQ_PORT_NUM) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1627 | qid = skb->mark & (MTK_QDMA_TX_MASK); |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1628 | else if (IS_PPPQ_MODE && IS_PPPQ_PATH(dev, skb)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1629 | qid = port_id & MTK_QDMA_TX_MASK; |
| 1630 | else |
| 1631 | qid = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1632 | |
| 1633 | if (IS_IPV4_GRP(foe)) { |
| 1634 | entry.ipv4_hnapt.iblk2.dp = gmac; |
| 1635 | entry.ipv4_hnapt.iblk2.port_mg = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1636 | (hnat_priv->data->version == MTK_HNAT_V1_1) ? 0x3f : 0; |
developer | 2494820 | 2021-11-24 17:38:27 +0800 | [diff] [blame] | 1637 | |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1638 | if (qos_toggle) { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1639 | if (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1640 | hnat_priv->data->version == MTK_HNAT_V3) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1641 | entry.ipv4_hnapt.iblk2.qid = qid & 0x7f; |
| 1642 | } else { |
| 1643 | /* qid[5:0]= port_mg[1:0]+ qid[3:0] */ |
| 1644 | entry.ipv4_hnapt.iblk2.qid = qid & 0xf; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1645 | if (hnat_priv->data->version != MTK_HNAT_V1_1) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1646 | entry.ipv4_hnapt.iblk2.port_mg |= |
| 1647 | ((qid >> 4) & 0x3); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1648 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1649 | if (((IS_EXT(dev) && (FROM_GE_LAN_GRP(skb) || |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1650 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) || |
| 1651 | ((mape_toggle && mape == 1) && !FROM_EXT(skb))) && |
| 1652 | (!whnat)) { |
| 1653 | entry.ipv4_hnapt.etype = htons(HQOS_MAGIC_TAG); |
| 1654 | entry.ipv4_hnapt.vlan1 = skb_hnat_entry(skb); |
| 1655 | entry.bfib1.vlan_layer = 1; |
| 1656 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1657 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1658 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1659 | if (FROM_EXT(skb) || skb_hnat_sport(skb) == NR_QDMA_PORT || |
| 1660 | (IS_PPPQ_MODE && !IS_DSA_LAN(dev) && !IS_DSA_WAN(dev))) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1661 | entry.ipv4_hnapt.iblk2.fqos = 0; |
| 1662 | else |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1663 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1664 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1665 | (IS_HQOS_DL_MODE && IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1666 | (IS_PPPQ_MODE && |
| 1667 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1668 | entry.ipv4_hnapt.tport_id = 1; |
| 1669 | else |
| 1670 | entry.ipv4_hnapt.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1671 | #else |
developer | 399ec07 | 2022-06-24 16:07:41 +0800 | [diff] [blame] | 1672 | entry.ipv4_hnapt.iblk2.fqos = |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1673 | (!IS_PPPQ_MODE || |
| 1674 | (IS_PPPQ_MODE && |
| 1675 | IS_PPPQ_PATH(dev, skb))); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1676 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1677 | } else { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1678 | entry.ipv4_hnapt.iblk2.fqos = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1679 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1680 | } else { |
| 1681 | entry.ipv6_5t_route.iblk2.dp = gmac; |
| 1682 | entry.ipv6_5t_route.iblk2.port_mg = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1683 | (hnat_priv->data->version == MTK_HNAT_V1_1) ? 0x3f : 0; |
developer | 2494820 | 2021-11-24 17:38:27 +0800 | [diff] [blame] | 1684 | |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1685 | if (qos_toggle) { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1686 | if (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1687 | hnat_priv->data->version == MTK_HNAT_V3) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1688 | entry.ipv6_5t_route.iblk2.qid = qid & 0x7f; |
| 1689 | } else { |
| 1690 | /* qid[5:0]= port_mg[1:0]+ qid[3:0] */ |
| 1691 | entry.ipv6_5t_route.iblk2.qid = qid & 0xf; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1692 | if (hnat_priv->data->version != MTK_HNAT_V1_1) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1693 | entry.ipv6_5t_route.iblk2.port_mg |= |
| 1694 | ((qid >> 4) & 0x3); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1695 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1696 | if (IS_EXT(dev) && (FROM_GE_LAN_GRP(skb) || |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1697 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) && |
| 1698 | (!whnat)) { |
| 1699 | entry.ipv6_5t_route.etype = htons(HQOS_MAGIC_TAG); |
| 1700 | entry.ipv6_5t_route.vlan1 = skb_hnat_entry(skb); |
| 1701 | entry.bfib1.vlan_layer = 1; |
| 1702 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1703 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1704 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1705 | if (FROM_EXT(skb) || |
| 1706 | (IS_PPPQ_MODE && !IS_DSA_LAN(dev) && !IS_DSA_WAN(dev))) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1707 | entry.ipv6_5t_route.iblk2.fqos = 0; |
| 1708 | else |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1709 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1710 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1711 | (IS_HQOS_DL_MODE && IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1712 | (IS_PPPQ_MODE && |
| 1713 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1714 | entry.ipv6_5t_route.tport_id = 1; |
| 1715 | else |
| 1716 | entry.ipv6_5t_route.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1717 | #else |
developer | 399ec07 | 2022-06-24 16:07:41 +0800 | [diff] [blame] | 1718 | entry.ipv6_5t_route.iblk2.fqos = |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1719 | (!IS_PPPQ_MODE || |
| 1720 | (IS_PPPQ_MODE && |
| 1721 | IS_PPPQ_PATH(dev, skb))); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1722 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1723 | } else { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1724 | entry.ipv6_5t_route.iblk2.fqos = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1725 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1726 | } |
| 1727 | |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1728 | /* The INFO2.port_mg and 2nd VLAN ID fields of PPE entry are redefined |
| 1729 | * by Wi-Fi whnat engine. These data and INFO2.dp will be updated and |
| 1730 | * the entry is set to BIND state in mtk_sw_nat_hook_tx(). |
| 1731 | */ |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1732 | if (!whnat) { |
| 1733 | entry.bfib1.ttl = 1; |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1734 | entry.bfib1.state = BIND; |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1735 | } |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1736 | |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1737 | wmb(); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1738 | memcpy(foe, &entry, sizeof(entry)); |
| 1739 | /*reset statistic for this entry*/ |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 1740 | if (hnat_priv->data->per_flow_accounting && |
| 1741 | skb_hnat_entry(skb) < hnat_priv->foe_etry_num && |
| 1742 | skb_hnat_ppe(skb) < CFG_PPE_NUM) |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 1743 | memset(&hnat_priv->acct[skb_hnat_ppe(skb)][skb_hnat_entry(skb)], |
| 1744 | 0, sizeof(struct mib_entry)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1745 | |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1746 | skb_hnat_filled(skb) = HNAT_INFO_FILLED; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1747 | |
| 1748 | return 0; |
| 1749 | } |
| 1750 | |
| 1751 | int mtk_sw_nat_hook_tx(struct sk_buff *skb, int gmac_no) |
| 1752 | { |
| 1753 | struct foe_entry *entry; |
| 1754 | struct ethhdr *eth; |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1755 | struct hnat_bind_info_blk bfib1_tx; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1756 | |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1757 | if (skb_hnat_alg(skb) || !is_hnat_info_filled(skb) || |
| 1758 | !is_magic_tag_valid(skb) || !IS_SPACE_AVAILABLE_HEAD(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1759 | return NF_ACCEPT; |
| 1760 | |
| 1761 | trace_printk( |
| 1762 | "[%s]entry=%x reason=%x gmac_no=%x wdmaid=%x rxid=%x wcid=%x bssid=%x\n", |
| 1763 | __func__, skb_hnat_entry(skb), skb_hnat_reason(skb), gmac_no, |
| 1764 | skb_hnat_wdma_id(skb), skb_hnat_bss_id(skb), |
| 1765 | skb_hnat_wc_id(skb), skb_hnat_rx_id(skb)); |
| 1766 | |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1767 | if ((gmac_no != NR_WDMA0_PORT) && (gmac_no != NR_WDMA1_PORT) && |
| 1768 | (gmac_no != NR_WHNAT_WDMA_PORT)) |
| 1769 | return NF_ACCEPT; |
| 1770 | |
developer | c0419aa | 2022-12-07 15:56:36 +0800 | [diff] [blame] | 1771 | if (unlikely(!skb_mac_header_was_set(skb))) |
| 1772 | return NF_ACCEPT; |
| 1773 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1774 | if (!skb_hnat_is_hashed(skb)) |
| 1775 | return NF_ACCEPT; |
| 1776 | |
developer | 955a6f6 | 2021-07-26 10:54:39 +0800 | [diff] [blame] | 1777 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 1778 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 1779 | return NF_ACCEPT; |
| 1780 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 1781 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1782 | if (entry_hnat_is_bound(entry)) |
| 1783 | return NF_ACCEPT; |
| 1784 | |
| 1785 | if (skb_hnat_reason(skb) != HIT_UNBIND_RATE_REACH) |
| 1786 | return NF_ACCEPT; |
| 1787 | |
| 1788 | eth = eth_hdr(skb); |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1789 | memcpy(&bfib1_tx, &entry->bfib1, sizeof(entry->bfib1)); |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1790 | |
| 1791 | /*not bind multicast if PPE mcast not enable*/ |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1792 | if (!hnat_priv->data->mcast) { |
| 1793 | if (is_multicast_ether_addr(eth->h_dest)) |
| 1794 | return NF_ACCEPT; |
| 1795 | |
| 1796 | if (IS_IPV4_GRP(entry)) |
| 1797 | entry->ipv4_hnapt.iblk2.mcast = 0; |
| 1798 | else |
| 1799 | entry->ipv6_5t_route.iblk2.mcast = 0; |
| 1800 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1801 | |
| 1802 | /* Some mt_wifi virtual interfaces, such as apcli, |
| 1803 | * will change the smac for specail purpose. |
| 1804 | */ |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1805 | switch ((int)bfib1_tx.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1806 | case IPV4_HNAPT: |
| 1807 | case IPV4_HNAT: |
| 1808 | entry->ipv4_hnapt.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1809 | entry->ipv4_hnapt.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1810 | break; |
| 1811 | case IPV4_DSLITE: |
| 1812 | case IPV4_MAP_E: |
| 1813 | case IPV6_6RD: |
| 1814 | case IPV6_5T_ROUTE: |
| 1815 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1816 | case IPV6_HNAPT: |
| 1817 | case IPV6_HNAT: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1818 | entry->ipv6_5t_route.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1819 | entry->ipv6_5t_route.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1820 | break; |
| 1821 | } |
| 1822 | |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1823 | if (skb->vlan_tci) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1824 | bfib1_tx.vlan_layer = 1; |
| 1825 | bfib1_tx.vpm = 1; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1826 | if (IS_IPV4_GRP(entry)) { |
| 1827 | entry->ipv4_hnapt.etype = htons(ETH_P_8021Q); |
developer | 00a0737 | 2022-03-11 16:04:34 +0800 | [diff] [blame] | 1828 | entry->ipv4_hnapt.vlan1 = skb->vlan_tci; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1829 | } else if (IS_IPV6_GRP(entry)) { |
| 1830 | entry->ipv6_5t_route.etype = htons(ETH_P_8021Q); |
developer | 00a0737 | 2022-03-11 16:04:34 +0800 | [diff] [blame] | 1831 | entry->ipv6_5t_route.vlan1 = skb->vlan_tci; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1832 | } |
| 1833 | } else { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1834 | bfib1_tx.vpm = 0; |
| 1835 | bfib1_tx.vlan_layer = 0; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1836 | } |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1837 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1838 | /* MT7622 wifi hw_nat not support QoS */ |
| 1839 | if (IS_IPV4_GRP(entry)) { |
| 1840 | entry->ipv4_hnapt.iblk2.fqos = 0; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1841 | if ((hnat_priv->data->version == MTK_HNAT_V1_2 && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1842 | gmac_no == NR_WHNAT_WDMA_PORT) || |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1843 | ((hnat_priv->data->version == MTK_HNAT_V2 || |
| 1844 | hnat_priv->data->version == MTK_HNAT_V3) && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1845 | (gmac_no == NR_WDMA0_PORT || gmac_no == NR_WDMA1_PORT))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1846 | entry->ipv4_hnapt.winfo.bssid = skb_hnat_bss_id(skb); |
| 1847 | entry->ipv4_hnapt.winfo.wcid = skb_hnat_wc_id(skb); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1848 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1849 | entry->ipv4_hnapt.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1850 | entry->ipv4_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1851 | entry->ipv4_hnapt.iblk2.winfoi = 1; |
| 1852 | entry->ipv4_hnapt.winfo_pao.usr_info = |
| 1853 | skb_hnat_usr_info(skb); |
| 1854 | entry->ipv4_hnapt.winfo_pao.tid = skb_hnat_tid(skb); |
| 1855 | entry->ipv4_hnapt.winfo_pao.is_fixedrate = |
| 1856 | skb_hnat_is_fixedrate(skb); |
| 1857 | entry->ipv4_hnapt.winfo_pao.is_prior = |
| 1858 | skb_hnat_is_prior(skb); |
| 1859 | entry->ipv4_hnapt.winfo_pao.is_sp = skb_hnat_is_sp(skb); |
| 1860 | entry->ipv4_hnapt.winfo_pao.hf = skb_hnat_hf(skb); |
| 1861 | entry->ipv4_hnapt.winfo_pao.amsdu = skb_hnat_amsdu(skb); |
| 1862 | #elif defined(CONFIG_MEDIATEK_NETSYS_V2) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1863 | entry->ipv4_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1864 | entry->ipv4_hnapt.iblk2.winfoi = 1; |
| 1865 | #else |
| 1866 | entry->ipv4_hnapt.winfo.rxid = skb_hnat_rx_id(skb); |
| 1867 | entry->ipv4_hnapt.iblk2w.winfoi = 1; |
| 1868 | entry->ipv4_hnapt.iblk2w.wdmaid = skb_hnat_wdma_id(skb); |
| 1869 | #endif |
| 1870 | } else { |
| 1871 | if (IS_GMAC1_MODE && !hnat_dsa_is_enable(hnat_priv)) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1872 | bfib1_tx.vpm = 1; |
| 1873 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1874 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1875 | if (FROM_GE_LAN_GRP(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1876 | entry->ipv4_hnapt.vlan1 = 1; |
| 1877 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1878 | entry->ipv4_hnapt.vlan1 = 2; |
| 1879 | } |
| 1880 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1881 | if (IS_HQOS_MODE && |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1882 | (FROM_GE_LAN_GRP(skb) || FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1883 | bfib1_tx.vpm = 0; |
| 1884 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1885 | entry->ipv4_hnapt.etype = htons(HQOS_MAGIC_TAG); |
| 1886 | entry->ipv4_hnapt.vlan1 = skb_hnat_entry(skb); |
| 1887 | entry->ipv4_hnapt.iblk2.fqos = 1; |
| 1888 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1889 | } |
| 1890 | entry->ipv4_hnapt.iblk2.dp = gmac_no; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1891 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
| 1892 | } else if (IS_IPV6_HNAPT(entry) || IS_IPV6_HNAT(entry)) { |
| 1893 | entry->ipv6_hnapt.iblk2.dp = gmac_no; |
| 1894 | entry->ipv6_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1895 | entry->ipv6_hnapt.iblk2.winfoi = 1; |
| 1896 | |
| 1897 | entry->ipv6_hnapt.winfo.bssid = skb_hnat_bss_id(skb); |
| 1898 | entry->ipv6_hnapt.winfo.wcid = skb_hnat_wc_id(skb); |
| 1899 | entry->ipv6_hnapt.winfo_pao.usr_info = skb_hnat_usr_info(skb); |
| 1900 | entry->ipv6_hnapt.winfo_pao.tid = skb_hnat_tid(skb); |
| 1901 | entry->ipv6_hnapt.winfo_pao.is_fixedrate = |
| 1902 | skb_hnat_is_fixedrate(skb); |
| 1903 | entry->ipv6_hnapt.winfo_pao.is_prior = skb_hnat_is_prior(skb); |
| 1904 | entry->ipv6_hnapt.winfo_pao.is_sp = skb_hnat_is_sp(skb); |
| 1905 | entry->ipv6_hnapt.winfo_pao.hf = skb_hnat_hf(skb); |
| 1906 | entry->ipv6_hnapt.winfo_pao.amsdu = skb_hnat_amsdu(skb); |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1907 | entry->ipv6_hnapt.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1908 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1909 | } else { |
| 1910 | entry->ipv6_5t_route.iblk2.fqos = 0; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1911 | if ((hnat_priv->data->version == MTK_HNAT_V1_2 && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1912 | gmac_no == NR_WHNAT_WDMA_PORT) || |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1913 | ((hnat_priv->data->version == MTK_HNAT_V2 || |
| 1914 | hnat_priv->data->version == MTK_HNAT_V3) && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1915 | (gmac_no == NR_WDMA0_PORT || gmac_no == NR_WDMA1_PORT))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1916 | entry->ipv6_5t_route.winfo.bssid = skb_hnat_bss_id(skb); |
| 1917 | entry->ipv6_5t_route.winfo.wcid = skb_hnat_wc_id(skb); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1918 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1919 | entry->ipv6_5t_route.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1920 | entry->ipv6_5t_route.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1921 | entry->ipv6_5t_route.iblk2.winfoi = 1; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1922 | entry->ipv6_5t_route.winfo_pao.usr_info = |
| 1923 | skb_hnat_usr_info(skb); |
| 1924 | entry->ipv6_5t_route.winfo_pao.tid = |
| 1925 | skb_hnat_tid(skb); |
| 1926 | entry->ipv6_5t_route.winfo_pao.is_fixedrate = |
| 1927 | skb_hnat_is_fixedrate(skb); |
| 1928 | entry->ipv6_5t_route.winfo_pao.is_prior = |
| 1929 | skb_hnat_is_prior(skb); |
| 1930 | entry->ipv6_5t_route.winfo_pao.is_sp = |
| 1931 | skb_hnat_is_sp(skb); |
| 1932 | entry->ipv6_5t_route.winfo_pao.hf = |
| 1933 | skb_hnat_hf(skb); |
| 1934 | entry->ipv6_5t_route.winfo_pao.amsdu = |
| 1935 | skb_hnat_amsdu(skb); |
| 1936 | #elif defined(CONFIG_MEDIATEK_NETSYS_V2) |
| 1937 | entry->ipv6_5t_route.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1938 | entry->ipv6_5t_route.iblk2.winfoi = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1939 | #else |
| 1940 | entry->ipv6_5t_route.winfo.rxid = skb_hnat_rx_id(skb); |
| 1941 | entry->ipv6_5t_route.iblk2w.winfoi = 1; |
| 1942 | entry->ipv6_5t_route.iblk2w.wdmaid = skb_hnat_wdma_id(skb); |
| 1943 | #endif |
| 1944 | } else { |
| 1945 | if (IS_GMAC1_MODE && !hnat_dsa_is_enable(hnat_priv)) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1946 | bfib1_tx.vpm = 1; |
| 1947 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1948 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1949 | if (FROM_GE_LAN_GRP(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1950 | entry->ipv6_5t_route.vlan1 = 1; |
| 1951 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1952 | entry->ipv6_5t_route.vlan1 = 2; |
| 1953 | } |
| 1954 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1955 | if (IS_HQOS_MODE && |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1956 | (FROM_GE_LAN_GRP(skb) || FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1957 | bfib1_tx.vpm = 0; |
| 1958 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1959 | entry->ipv6_5t_route.etype = htons(HQOS_MAGIC_TAG); |
| 1960 | entry->ipv6_5t_route.vlan1 = skb_hnat_entry(skb); |
| 1961 | entry->ipv6_5t_route.iblk2.fqos = 1; |
| 1962 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1963 | } |
| 1964 | entry->ipv6_5t_route.iblk2.dp = gmac_no; |
| 1965 | } |
| 1966 | |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1967 | bfib1_tx.ttl = 1; |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1968 | bfib1_tx.state = BIND; |
| 1969 | wmb(); |
| 1970 | memcpy(&entry->bfib1, &bfib1_tx, sizeof(bfib1_tx)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1971 | |
| 1972 | return NF_ACCEPT; |
| 1973 | } |
| 1974 | |
| 1975 | int mtk_sw_nat_hook_rx(struct sk_buff *skb) |
| 1976 | { |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1977 | if (!IS_SPACE_AVAILABLE_HEAD(skb) || !FROM_WED(skb)) { |
| 1978 | skb_hnat_magic_tag(skb) = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1979 | return NF_ACCEPT; |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1980 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1981 | |
| 1982 | skb_hnat_alg(skb) = 0; |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1983 | skb_hnat_filled(skb) = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1984 | skb_hnat_magic_tag(skb) = HNAT_MAGIC_TAG; |
| 1985 | |
| 1986 | if (skb_hnat_iface(skb) == FOE_MAGIC_WED0) |
| 1987 | skb_hnat_sport(skb) = NR_WDMA0_PORT; |
| 1988 | else if (skb_hnat_iface(skb) == FOE_MAGIC_WED1) |
| 1989 | skb_hnat_sport(skb) = NR_WDMA1_PORT; |
| 1990 | |
| 1991 | return NF_ACCEPT; |
| 1992 | } |
| 1993 | |
| 1994 | void mtk_ppe_dev_register_hook(struct net_device *dev) |
| 1995 | { |
| 1996 | int i, number = 0; |
| 1997 | struct extdev_entry *ext_entry; |
| 1998 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1999 | for (i = 1; i < MAX_IF_NUM; i++) { |
| 2000 | if (hnat_priv->wifi_hook_if[i] == dev) { |
| 2001 | pr_info("%s : %s has been registered in wifi_hook_if table[%d]\n", |
| 2002 | __func__, dev->name, i); |
| 2003 | return; |
| 2004 | } |
developer | a7e6c24 | 2022-12-05 13:52:40 +0800 | [diff] [blame] | 2005 | } |
| 2006 | |
| 2007 | for (i = 1; i < MAX_IF_NUM; i++) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2008 | if (!hnat_priv->wifi_hook_if[i]) { |
| 2009 | if (find_extif_from_devname(dev->name)) { |
| 2010 | extif_set_dev(dev); |
| 2011 | goto add_wifi_hook_if; |
| 2012 | } |
| 2013 | |
| 2014 | number = get_ext_device_number(); |
| 2015 | if (number >= MAX_EXT_DEVS) { |
| 2016 | pr_info("%s : extdev array is full. %s is not registered\n", |
| 2017 | __func__, dev->name); |
| 2018 | return; |
| 2019 | } |
| 2020 | |
| 2021 | ext_entry = kzalloc(sizeof(*ext_entry), GFP_KERNEL); |
| 2022 | if (!ext_entry) |
| 2023 | return; |
| 2024 | |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2025 | strncpy(ext_entry->name, dev->name, IFNAMSIZ - 1); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2026 | dev_hold(dev); |
| 2027 | ext_entry->dev = dev; |
| 2028 | ext_if_add(ext_entry); |
| 2029 | |
| 2030 | add_wifi_hook_if: |
| 2031 | dev_hold(dev); |
| 2032 | hnat_priv->wifi_hook_if[i] = dev; |
| 2033 | |
| 2034 | break; |
| 2035 | } |
| 2036 | } |
| 2037 | pr_info("%s : ineterface %s register (%d)\n", __func__, dev->name, i); |
| 2038 | } |
| 2039 | |
| 2040 | void mtk_ppe_dev_unregister_hook(struct net_device *dev) |
| 2041 | { |
| 2042 | int i; |
| 2043 | |
| 2044 | for (i = 1; i < MAX_IF_NUM; i++) { |
| 2045 | if (hnat_priv->wifi_hook_if[i] == dev) { |
| 2046 | hnat_priv->wifi_hook_if[i] = NULL; |
| 2047 | dev_put(dev); |
| 2048 | |
| 2049 | break; |
| 2050 | } |
| 2051 | } |
| 2052 | |
| 2053 | extif_put_dev(dev); |
| 2054 | pr_info("%s : ineterface %s set null (%d)\n", __func__, dev->name, i); |
| 2055 | } |
| 2056 | |
| 2057 | static unsigned int mtk_hnat_accel_type(struct sk_buff *skb) |
| 2058 | { |
| 2059 | struct dst_entry *dst; |
| 2060 | struct nf_conn *ct; |
| 2061 | enum ip_conntrack_info ctinfo; |
| 2062 | const struct nf_conn_help *help; |
| 2063 | |
| 2064 | /* Do not accelerate 1st round of xfrm flow, and 2nd round of xfrm flow |
| 2065 | * is from local_out which is also filtered in sanity check. |
| 2066 | */ |
| 2067 | dst = skb_dst(skb); |
| 2068 | if (dst && dst_xfrm(dst)) |
| 2069 | return 0; |
| 2070 | |
| 2071 | ct = nf_ct_get(skb, &ctinfo); |
| 2072 | if (!ct) |
| 2073 | return 1; |
| 2074 | |
| 2075 | /* rcu_read_lock()ed by nf_hook_slow */ |
| 2076 | help = nfct_help(ct); |
| 2077 | if (help && rcu_dereference(help->helper)) |
| 2078 | return 0; |
| 2079 | |
| 2080 | return 1; |
| 2081 | } |
| 2082 | |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2083 | static void mtk_hnat_dscp_update(struct sk_buff *skb, struct foe_entry *entry) |
| 2084 | { |
| 2085 | struct iphdr *iph; |
| 2086 | struct ethhdr *eth; |
| 2087 | struct ipv6hdr *ip6h; |
| 2088 | bool flag = false; |
| 2089 | |
| 2090 | eth = eth_hdr(skb); |
| 2091 | switch (ntohs(eth->h_proto)) { |
| 2092 | case ETH_P_IP: |
| 2093 | iph = ip_hdr(skb); |
developer | 001e7be | 2021-12-09 15:00:27 +0800 | [diff] [blame] | 2094 | if (IS_IPV4_GRP(entry) && entry->ipv4_hnapt.iblk2.dscp != iph->tos) |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2095 | flag = true; |
| 2096 | break; |
| 2097 | case ETH_P_IPV6: |
| 2098 | ip6h = ipv6_hdr(skb); |
developer | 001e7be | 2021-12-09 15:00:27 +0800 | [diff] [blame] | 2099 | if ((IS_IPV6_3T_ROUTE(entry) || IS_IPV6_5T_ROUTE(entry)) && |
| 2100 | (entry->ipv6_5t_route.iblk2.dscp != |
| 2101 | (ip6h->priority << 4 | (ip6h->flow_lbl[0] >> 4)))) |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2102 | flag = true; |
| 2103 | break; |
| 2104 | default: |
| 2105 | return; |
| 2106 | } |
| 2107 | |
| 2108 | if (flag) { |
developer | 1080dd8 | 2022-03-07 19:31:04 +0800 | [diff] [blame] | 2109 | if (debug_level >= 2) |
| 2110 | pr_info("Delete entry idx=%d.\n", skb_hnat_entry(skb)); |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2111 | memset(entry, 0, sizeof(struct foe_entry)); |
| 2112 | hnat_cache_ebl(1); |
| 2113 | } |
| 2114 | } |
| 2115 | |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2116 | static void mtk_hnat_nf_update(struct sk_buff *skb) |
| 2117 | { |
| 2118 | struct nf_conn *ct; |
| 2119 | struct nf_conn_acct *acct; |
| 2120 | struct nf_conn_counter *counter; |
| 2121 | enum ip_conntrack_info ctinfo; |
| 2122 | struct hnat_accounting diff; |
| 2123 | |
| 2124 | ct = nf_ct_get(skb, &ctinfo); |
| 2125 | if (ct) { |
| 2126 | if (!hnat_get_count(hnat_priv, skb_hnat_ppe(skb), skb_hnat_entry(skb), &diff)) |
| 2127 | return; |
| 2128 | |
| 2129 | acct = nf_conn_acct_find(ct); |
| 2130 | if (acct) { |
| 2131 | counter = acct->counter; |
| 2132 | atomic64_add(diff.packets, &counter[CTINFO2DIR(ctinfo)].packets); |
| 2133 | atomic64_add(diff.bytes, &counter[CTINFO2DIR(ctinfo)].bytes); |
| 2134 | } |
| 2135 | } |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 2136 | } |
| 2137 | |
| 2138 | int mtk_464xlat_fill_mac(struct foe_entry *entry, struct sk_buff *skb, |
| 2139 | const struct net_device *out, bool l2w) |
| 2140 | { |
| 2141 | const struct in6_addr *ipv6_nexthop; |
| 2142 | struct dst_entry *dst = skb_dst(skb); |
| 2143 | struct neighbour *neigh = NULL; |
| 2144 | struct rtable *rt = (struct rtable *)dst; |
| 2145 | u32 nexthop; |
| 2146 | |
| 2147 | rcu_read_lock_bh(); |
| 2148 | if (l2w) { |
| 2149 | ipv6_nexthop = rt6_nexthop((struct rt6_info *)dst, |
| 2150 | &ipv6_hdr(skb)->daddr); |
| 2151 | neigh = __ipv6_neigh_lookup_noref(dst->dev, ipv6_nexthop); |
| 2152 | if (unlikely(!neigh)) { |
| 2153 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI6)\n", |
| 2154 | __func__, &ipv6_hdr(skb)->daddr); |
| 2155 | rcu_read_unlock_bh(); |
| 2156 | return -1; |
| 2157 | } |
| 2158 | } else { |
| 2159 | nexthop = (__force u32)rt_nexthop(rt, ip_hdr(skb)->daddr); |
| 2160 | neigh = __ipv4_neigh_lookup_noref(dst->dev, nexthop); |
| 2161 | if (unlikely(!neigh)) { |
| 2162 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI4)\n", |
| 2163 | __func__, &ip_hdr(skb)->daddr); |
| 2164 | rcu_read_unlock_bh(); |
| 2165 | return -1; |
| 2166 | } |
| 2167 | } |
| 2168 | rcu_read_unlock_bh(); |
| 2169 | |
| 2170 | entry->ipv4_dslite.dmac_hi = swab32(*((u32 *)neigh->ha)); |
| 2171 | entry->ipv4_dslite.dmac_lo = swab16(*((u16 *)&neigh->ha[4])); |
| 2172 | entry->ipv4_dslite.smac_hi = swab32(*((u32 *)out->dev_addr)); |
| 2173 | entry->ipv4_dslite.smac_lo = swab16(*((u16 *)&out->dev_addr[4])); |
| 2174 | |
| 2175 | return 0; |
| 2176 | } |
| 2177 | |
| 2178 | int mtk_464xlat_get_hash(struct sk_buff *skb, u32 *hash, bool l2w) |
| 2179 | { |
| 2180 | struct in6_addr addr_v6, prefix; |
| 2181 | struct ipv6hdr *ip6h; |
| 2182 | struct iphdr *iph; |
| 2183 | struct tcpudphdr *pptr, _ports; |
| 2184 | struct foe_entry tmp; |
| 2185 | u32 addr, protoff; |
| 2186 | |
| 2187 | if (l2w) { |
| 2188 | ip6h = ipv6_hdr(skb); |
| 2189 | if (mtk_ppe_get_xlat_v4_by_v6(&ip6h->daddr, &addr)) |
| 2190 | return -1; |
| 2191 | protoff = IPV6_HDR_LEN; |
| 2192 | |
| 2193 | tmp.bfib1.pkt_type = IPV4_HNAPT; |
| 2194 | tmp.ipv4_hnapt.sip = ntohl(ip6h->saddr.s6_addr32[3]); |
| 2195 | tmp.ipv4_hnapt.dip = ntohl(addr); |
| 2196 | } else { |
| 2197 | iph = ip_hdr(skb); |
| 2198 | if (mtk_ppe_get_xlat_v6_by_v4(&iph->saddr, &addr_v6, &prefix)) |
| 2199 | return -1; |
| 2200 | |
| 2201 | protoff = iph->ihl * 4; |
| 2202 | |
| 2203 | tmp.bfib1.pkt_type = IPV6_5T_ROUTE; |
| 2204 | tmp.ipv6_5t_route.ipv6_sip0 = ntohl(addr_v6.s6_addr32[0]); |
| 2205 | tmp.ipv6_5t_route.ipv6_sip1 = ntohl(addr_v6.s6_addr32[1]); |
| 2206 | tmp.ipv6_5t_route.ipv6_sip2 = ntohl(addr_v6.s6_addr32[2]); |
| 2207 | tmp.ipv6_5t_route.ipv6_sip3 = ntohl(addr_v6.s6_addr32[3]); |
| 2208 | tmp.ipv6_5t_route.ipv6_dip0 = ntohl(prefix.s6_addr32[0]); |
| 2209 | tmp.ipv6_5t_route.ipv6_dip1 = ntohl(prefix.s6_addr32[1]); |
| 2210 | tmp.ipv6_5t_route.ipv6_dip2 = ntohl(prefix.s6_addr32[2]); |
| 2211 | tmp.ipv6_5t_route.ipv6_dip3 = ntohl(iph->daddr); |
| 2212 | } |
| 2213 | |
| 2214 | pptr = skb_header_pointer(skb, protoff, |
| 2215 | sizeof(_ports), &_ports); |
| 2216 | if (unlikely(!pptr)) |
| 2217 | return -1; |
| 2218 | |
| 2219 | if (l2w) { |
| 2220 | tmp.ipv4_hnapt.sport = ntohs(pptr->src); |
| 2221 | tmp.ipv4_hnapt.dport = ntohs(pptr->dst); |
| 2222 | } else { |
| 2223 | tmp.ipv6_5t_route.sport = ntohs(pptr->src); |
| 2224 | tmp.ipv6_5t_route.dport = ntohs(pptr->dst); |
| 2225 | } |
| 2226 | |
| 2227 | *hash = hnat_get_ppe_hash(&tmp); |
| 2228 | |
| 2229 | return 0; |
| 2230 | } |
| 2231 | |
| 2232 | void mtk_464xlat_fill_info1(struct foe_entry *entry, |
| 2233 | struct sk_buff *skb, bool l2w) |
| 2234 | { |
| 2235 | entry->bfib1.cah = 1; |
| 2236 | entry->bfib1.ttl = 1; |
| 2237 | entry->bfib1.state = BIND; |
| 2238 | entry->bfib1.time_stamp = readl(hnat_priv->fe_base + 0x0010) & (0xFF); |
| 2239 | if (l2w) { |
| 2240 | entry->bfib1.pkt_type = IPV4_DSLITE; |
| 2241 | entry->bfib1.udp = ipv6_hdr(skb)->nexthdr == |
| 2242 | IPPROTO_UDP ? 1 : 0; |
| 2243 | } else { |
| 2244 | entry->bfib1.pkt_type = IPV6_6RD; |
| 2245 | entry->bfib1.udp = ip_hdr(skb)->protocol == |
| 2246 | IPPROTO_UDP ? 1 : 0; |
| 2247 | } |
| 2248 | } |
| 2249 | |
| 2250 | void mtk_464xlat_fill_info2(struct foe_entry *entry, bool l2w) |
| 2251 | { |
| 2252 | entry->ipv4_dslite.iblk2.mibf = 1; |
| 2253 | entry->ipv4_dslite.iblk2.port_ag = 0xF; |
| 2254 | |
| 2255 | if (l2w) |
| 2256 | entry->ipv4_dslite.iblk2.dp = NR_GMAC2_PORT; |
| 2257 | else |
| 2258 | entry->ipv6_6rd.iblk2.dp = NR_GMAC1_PORT; |
| 2259 | } |
| 2260 | |
| 2261 | void mtk_464xlat_fill_ipv4(struct foe_entry *entry, struct sk_buff *skb, |
| 2262 | struct foe_entry *foe, bool l2w) |
| 2263 | { |
| 2264 | struct iphdr *iph; |
| 2265 | |
| 2266 | if (l2w) { |
| 2267 | entry->ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 2268 | entry->ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 2269 | entry->ipv4_dslite.sport = foe->ipv4_dslite.sport; |
| 2270 | entry->ipv4_dslite.dport = foe->ipv4_dslite.dport; |
| 2271 | } else { |
| 2272 | iph = ip_hdr(skb); |
| 2273 | entry->ipv6_6rd.tunnel_sipv4 = ntohl(iph->saddr); |
| 2274 | entry->ipv6_6rd.tunnel_dipv4 = ntohl(iph->daddr); |
| 2275 | entry->ipv6_6rd.sport = foe->ipv6_6rd.sport; |
| 2276 | entry->ipv6_6rd.dport = foe->ipv6_6rd.dport; |
| 2277 | entry->ipv6_6rd.hdr_chksum = ppe_get_chkbase(iph); |
| 2278 | entry->ipv6_6rd.ttl = iph->ttl; |
| 2279 | entry->ipv6_6rd.dscp = iph->tos; |
| 2280 | entry->ipv6_6rd.flag = (ntohs(iph->frag_off) >> 13); |
| 2281 | } |
| 2282 | } |
| 2283 | |
| 2284 | int mtk_464xlat_fill_ipv6(struct foe_entry *entry, struct sk_buff *skb, |
| 2285 | struct foe_entry *foe, bool l2w) |
| 2286 | { |
| 2287 | struct ipv6hdr *ip6h; |
| 2288 | struct in6_addr addr_v6, prefix; |
| 2289 | u32 addr; |
| 2290 | |
| 2291 | if (l2w) { |
| 2292 | ip6h = ipv6_hdr(skb); |
| 2293 | |
| 2294 | if (mtk_ppe_get_xlat_v4_by_v6(&ip6h->daddr, &addr)) |
| 2295 | return -1; |
| 2296 | |
| 2297 | if (mtk_ppe_get_xlat_v6_by_v4(&addr, &addr_v6, &prefix)) |
| 2298 | return -1; |
| 2299 | |
| 2300 | entry->ipv4_dslite.tunnel_sipv6_0 = |
| 2301 | ntohl(prefix.s6_addr32[0]); |
| 2302 | entry->ipv4_dslite.tunnel_sipv6_1 = |
| 2303 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 2304 | entry->ipv4_dslite.tunnel_sipv6_2 = |
| 2305 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 2306 | entry->ipv4_dslite.tunnel_sipv6_3 = |
| 2307 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 2308 | entry->ipv4_dslite.tunnel_dipv6_0 = |
| 2309 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 2310 | entry->ipv4_dslite.tunnel_dipv6_1 = |
| 2311 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 2312 | entry->ipv4_dslite.tunnel_dipv6_2 = |
| 2313 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 2314 | entry->ipv4_dslite.tunnel_dipv6_3 = |
| 2315 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 2316 | |
| 2317 | ppe_fill_flow_lbl(entry, ip6h); |
| 2318 | entry->ipv4_dslite.priority = ip6h->priority; |
| 2319 | entry->ipv4_dslite.hop_limit = ip6h->hop_limit; |
| 2320 | |
| 2321 | } else { |
| 2322 | entry->ipv6_6rd.ipv6_sip0 = foe->ipv6_6rd.ipv6_sip0; |
| 2323 | entry->ipv6_6rd.ipv6_sip1 = foe->ipv6_6rd.ipv6_sip1; |
| 2324 | entry->ipv6_6rd.ipv6_sip2 = foe->ipv6_6rd.ipv6_sip2; |
| 2325 | entry->ipv6_6rd.ipv6_sip3 = foe->ipv6_6rd.ipv6_sip3; |
| 2326 | entry->ipv6_6rd.ipv6_dip0 = foe->ipv6_6rd.ipv6_dip0; |
| 2327 | entry->ipv6_6rd.ipv6_dip1 = foe->ipv6_6rd.ipv6_dip1; |
| 2328 | entry->ipv6_6rd.ipv6_dip2 = foe->ipv6_6rd.ipv6_dip2; |
| 2329 | entry->ipv6_6rd.ipv6_dip3 = foe->ipv6_6rd.ipv6_dip3; |
| 2330 | } |
| 2331 | |
| 2332 | return 0; |
| 2333 | } |
| 2334 | |
| 2335 | int mtk_464xlat_fill_l2(struct foe_entry *entry, struct sk_buff *skb, |
| 2336 | const struct net_device *dev, bool l2w) |
| 2337 | { |
| 2338 | const unsigned int *port_reg; |
| 2339 | int port_index; |
| 2340 | u16 sp_tag; |
| 2341 | |
| 2342 | if (l2w) |
| 2343 | entry->ipv4_dslite.etype = ETH_P_IP; |
| 2344 | else { |
| 2345 | if (IS_DSA_LAN(dev)) { |
| 2346 | port_reg = of_get_property(dev->dev.of_node, |
| 2347 | "reg", NULL); |
| 2348 | if (unlikely(!port_reg)) |
| 2349 | return -1; |
| 2350 | |
| 2351 | port_index = be32_to_cpup(port_reg); |
| 2352 | sp_tag = BIT(port_index); |
| 2353 | |
| 2354 | entry->bfib1.vlan_layer = 1; |
| 2355 | entry->bfib1.vpm = 0; |
| 2356 | entry->ipv6_6rd.etype = sp_tag; |
| 2357 | } else |
| 2358 | entry->ipv6_6rd.etype = ETH_P_IPV6; |
| 2359 | } |
| 2360 | |
| 2361 | if (mtk_464xlat_fill_mac(entry, skb, dev, l2w)) |
| 2362 | return -1; |
| 2363 | |
| 2364 | return 0; |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2365 | } |
| 2366 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 2367 | |
| 2368 | int mtk_464xlat_fill_l3(struct foe_entry *entry, struct sk_buff *skb, |
| 2369 | struct foe_entry *foe, bool l2w) |
| 2370 | { |
| 2371 | mtk_464xlat_fill_ipv4(entry, skb, foe, l2w); |
| 2372 | |
| 2373 | if (mtk_464xlat_fill_ipv6(entry, skb, foe, l2w)) |
| 2374 | return -1; |
| 2375 | |
| 2376 | return 0; |
| 2377 | } |
| 2378 | |
| 2379 | int mtk_464xlat_post_process(struct sk_buff *skb, const struct net_device *out) |
| 2380 | { |
| 2381 | struct foe_entry *foe, entry = {}; |
| 2382 | u32 hash; |
| 2383 | bool l2w; |
| 2384 | |
| 2385 | if (skb->protocol == htons(ETH_P_IPV6)) |
| 2386 | l2w = true; |
| 2387 | else if (skb->protocol == htons(ETH_P_IP)) |
| 2388 | l2w = false; |
| 2389 | else |
| 2390 | return -1; |
| 2391 | |
| 2392 | if (mtk_464xlat_get_hash(skb, &hash, l2w)) |
| 2393 | return -1; |
| 2394 | |
| 2395 | if (hash >= hnat_priv->foe_etry_num) |
| 2396 | return -1; |
| 2397 | |
| 2398 | if (headroom[hash].crsn != HIT_UNBIND_RATE_REACH) |
| 2399 | return -1; |
| 2400 | |
| 2401 | foe = &hnat_priv->foe_table_cpu[headroom_ppe(headroom[hash])][hash]; |
| 2402 | |
| 2403 | mtk_464xlat_fill_info1(&entry, skb, l2w); |
| 2404 | |
| 2405 | if (mtk_464xlat_fill_l3(&entry, skb, foe, l2w)) |
| 2406 | return -1; |
| 2407 | |
| 2408 | mtk_464xlat_fill_info2(&entry, l2w); |
| 2409 | |
| 2410 | if (mtk_464xlat_fill_l2(&entry, skb, out, l2w)) |
| 2411 | return -1; |
| 2412 | |
| 2413 | /* We must ensure all info has been updated before set to hw */ |
| 2414 | wmb(); |
| 2415 | memcpy(foe, &entry, sizeof(struct foe_entry)); |
| 2416 | |
| 2417 | return 0; |
| 2418 | } |
| 2419 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2420 | static unsigned int mtk_hnat_nf_post_routing( |
| 2421 | struct sk_buff *skb, const struct net_device *out, |
| 2422 | unsigned int (*fn)(struct sk_buff *, const struct net_device *, |
| 2423 | struct flow_offload_hw_path *), |
| 2424 | const char *func) |
| 2425 | { |
| 2426 | struct foe_entry *entry; |
| 2427 | struct flow_offload_hw_path hw_path = { .dev = (struct net_device*)out, |
developer | e576351 | 2021-05-21 01:04:58 +0800 | [diff] [blame] | 2428 | .virt_dev = (struct net_device*)out }; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2429 | const struct net_device *arp_dev = out; |
| 2430 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame] | 2431 | if (xlat_toggle && !mtk_464xlat_post_process(skb, out)) |
| 2432 | return 0; |
| 2433 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2434 | if (skb_hnat_alg(skb) || unlikely(!is_magic_tag_valid(skb) || |
| 2435 | !IS_SPACE_AVAILABLE_HEAD(skb))) |
| 2436 | return 0; |
| 2437 | |
developer | c0419aa | 2022-12-07 15:56:36 +0800 | [diff] [blame] | 2438 | if (unlikely(!skb_mac_header_was_set(skb))) |
| 2439 | return 0; |
| 2440 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2441 | if (unlikely(!skb_hnat_is_hashed(skb))) |
| 2442 | return 0; |
| 2443 | |
| 2444 | if (out->netdev_ops->ndo_flow_offload_check) { |
developer | e576351 | 2021-05-21 01:04:58 +0800 | [diff] [blame] | 2445 | out->netdev_ops->ndo_flow_offload_check(&hw_path); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2446 | out = (IS_GMAC1_MODE) ? hw_path.virt_dev : hw_path.dev; |
| 2447 | } |
| 2448 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2449 | if (!IS_LAN_GRP(out) && !IS_WAN(out) && !IS_EXT(out)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2450 | return 0; |
| 2451 | |
| 2452 | trace_printk("[%s] case hit, %x-->%s, reason=%x\n", __func__, |
| 2453 | skb_hnat_iface(skb), out->name, skb_hnat_reason(skb)); |
| 2454 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2455 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2456 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2457 | return -1; |
| 2458 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2459 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2460 | |
| 2461 | switch (skb_hnat_reason(skb)) { |
| 2462 | case HIT_UNBIND_RATE_REACH: |
| 2463 | if (entry_hnat_is_bound(entry)) |
| 2464 | break; |
| 2465 | |
| 2466 | if (fn && !mtk_hnat_accel_type(skb)) |
| 2467 | break; |
| 2468 | |
| 2469 | if (fn && fn(skb, arp_dev, &hw_path)) |
| 2470 | break; |
| 2471 | |
| 2472 | skb_to_hnat_info(skb, out, entry, &hw_path); |
| 2473 | break; |
| 2474 | case HIT_BIND_KEEPALIVE_DUP_OLD_HDR: |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2475 | /* update hnat count to nf_conntrack by keepalive */ |
| 2476 | if (hnat_priv->data->per_flow_accounting && hnat_priv->nf_stat_en) |
| 2477 | mtk_hnat_nf_update(skb); |
| 2478 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2479 | if (fn && !mtk_hnat_accel_type(skb)) |
| 2480 | break; |
| 2481 | |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2482 | /* update dscp for qos */ |
| 2483 | mtk_hnat_dscp_update(skb, entry); |
| 2484 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2485 | /* update mcast timestamp*/ |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 2486 | if (hnat_priv->data->version == MTK_HNAT_V1_3 && |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2487 | hnat_priv->data->mcast && entry->bfib1.sta == 1) |
| 2488 | entry->ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 2489 | |
| 2490 | if (entry_hnat_is_bound(entry)) { |
| 2491 | memset(skb_hnat_info(skb), 0, FOE_INFO_LEN); |
| 2492 | |
| 2493 | return -1; |
| 2494 | } |
| 2495 | break; |
| 2496 | case HIT_BIND_MULTICAST_TO_CPU: |
| 2497 | case HIT_BIND_MULTICAST_TO_GMAC_CPU: |
| 2498 | /*do not forward to gdma again,if ppe already done it*/ |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2499 | if (IS_LAN_GRP(out) || IS_WAN(out)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2500 | return -1; |
| 2501 | break; |
| 2502 | } |
| 2503 | |
| 2504 | return 0; |
| 2505 | } |
| 2506 | |
| 2507 | static unsigned int |
| 2508 | mtk_hnat_ipv6_nf_local_out(void *priv, struct sk_buff *skb, |
| 2509 | const struct nf_hook_state *state) |
| 2510 | { |
| 2511 | struct foe_entry *entry; |
| 2512 | struct ipv6hdr *ip6h; |
| 2513 | struct iphdr _iphdr; |
| 2514 | const struct iphdr *iph; |
| 2515 | struct tcpudphdr _ports; |
| 2516 | const struct tcpudphdr *pptr; |
| 2517 | int udp = 0; |
| 2518 | |
| 2519 | if (unlikely(!skb_hnat_is_hashed(skb))) |
| 2520 | return NF_ACCEPT; |
| 2521 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2522 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2523 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2524 | return NF_ACCEPT; |
| 2525 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2526 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2527 | if (skb_hnat_reason(skb) == HIT_UNBIND_RATE_REACH) { |
| 2528 | ip6h = ipv6_hdr(skb); |
| 2529 | if (ip6h->nexthdr == NEXTHDR_IPIP) { |
| 2530 | /* Map-E LAN->WAN: need to record orig info before fn. */ |
| 2531 | if (mape_toggle) { |
| 2532 | iph = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 2533 | sizeof(_iphdr), &_iphdr); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2534 | if (unlikely(!iph)) |
| 2535 | return NF_ACCEPT; |
| 2536 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2537 | switch (iph->protocol) { |
| 2538 | case IPPROTO_UDP: |
| 2539 | udp = 1; |
| 2540 | case IPPROTO_TCP: |
| 2541 | break; |
| 2542 | |
| 2543 | default: |
| 2544 | return NF_ACCEPT; |
| 2545 | } |
| 2546 | |
| 2547 | pptr = skb_header_pointer(skb, IPV6_HDR_LEN + iph->ihl * 4, |
| 2548 | sizeof(_ports), &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2549 | if (unlikely(!pptr)) |
| 2550 | return NF_ACCEPT; |
| 2551 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2552 | entry->bfib1.udp = udp; |
| 2553 | |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 2554 | /* Map-E LAN->WAN record inner IPv4 header info. */ |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2555 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2556 | entry->bfib1.pkt_type = IPV4_MAP_E; |
| 2557 | entry->ipv4_dslite.iblk2.dscp = iph->tos; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2558 | entry->ipv4_mape.new_sip = ntohl(iph->saddr); |
| 2559 | entry->ipv4_mape.new_dip = ntohl(iph->daddr); |
| 2560 | entry->ipv4_mape.new_sport = ntohs(pptr->src); |
| 2561 | entry->ipv4_mape.new_dport = ntohs(pptr->dst); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2562 | #else |
| 2563 | entry->ipv4_hnapt.iblk2.dscp = iph->tos; |
| 2564 | entry->ipv4_hnapt.new_sip = ntohl(iph->saddr); |
| 2565 | entry->ipv4_hnapt.new_dip = ntohl(iph->daddr); |
| 2566 | entry->ipv4_hnapt.new_sport = ntohs(pptr->src); |
| 2567 | entry->ipv4_hnapt.new_dport = ntohs(pptr->dst); |
| 2568 | #endif |
| 2569 | } else { |
| 2570 | entry->bfib1.pkt_type = IPV4_DSLITE; |
| 2571 | } |
| 2572 | } |
| 2573 | } |
| 2574 | return NF_ACCEPT; |
| 2575 | } |
| 2576 | |
| 2577 | static unsigned int |
| 2578 | mtk_hnat_ipv6_nf_post_routing(void *priv, struct sk_buff *skb, |
| 2579 | const struct nf_hook_state *state) |
| 2580 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2581 | if (!skb) |
| 2582 | goto drop; |
| 2583 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2584 | post_routing_print(skb, state->in, state->out, __func__); |
| 2585 | |
| 2586 | if (!mtk_hnat_nf_post_routing(skb, state->out, hnat_ipv6_get_nexthop, |
| 2587 | __func__)) |
| 2588 | return NF_ACCEPT; |
| 2589 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2590 | drop: |
| 2591 | if (skb) |
| 2592 | trace_printk( |
| 2593 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2594 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2595 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2596 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2597 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2598 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2599 | |
| 2600 | return NF_DROP; |
| 2601 | } |
| 2602 | |
| 2603 | static unsigned int |
| 2604 | mtk_hnat_ipv4_nf_post_routing(void *priv, struct sk_buff *skb, |
| 2605 | const struct nf_hook_state *state) |
| 2606 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2607 | if (!skb) |
| 2608 | goto drop; |
| 2609 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2610 | post_routing_print(skb, state->in, state->out, __func__); |
| 2611 | |
| 2612 | if (!mtk_hnat_nf_post_routing(skb, state->out, hnat_ipv4_get_nexthop, |
| 2613 | __func__)) |
| 2614 | return NF_ACCEPT; |
| 2615 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2616 | drop: |
| 2617 | if (skb) |
| 2618 | trace_printk( |
| 2619 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2620 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2621 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2622 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2623 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2624 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2625 | |
| 2626 | return NF_DROP; |
| 2627 | } |
| 2628 | |
| 2629 | static unsigned int |
| 2630 | mtk_pong_hqos_handler(void *priv, struct sk_buff *skb, |
| 2631 | const struct nf_hook_state *state) |
| 2632 | { |
developer | 659fdeb | 2022-12-01 23:03:07 +0800 | [diff] [blame] | 2633 | struct vlan_ethhdr *veth; |
| 2634 | |
| 2635 | if (!skb) |
| 2636 | goto drop; |
| 2637 | |
| 2638 | veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2639 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 2640 | if (IS_HQOS_MODE && eth_hdr(skb)->h_proto == HQOS_MAGIC_TAG) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2641 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 2642 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 2643 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2644 | |
| 2645 | if (skb_hnat_iface(skb) == FOE_MAGIC_EXT) |
| 2646 | clr_from_extge(skb); |
| 2647 | |
| 2648 | /* packets from external devices -> xxx ,step 2, learning stage */ |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 2649 | if (do_ext2ge_fast_learn(state->in, skb) && (!qos_toggle || |
| 2650 | (qos_toggle && eth_hdr(skb)->h_proto != HQOS_MAGIC_TAG))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2651 | if (!do_hnat_ext_to_ge2(skb, __func__)) |
| 2652 | return NF_STOLEN; |
| 2653 | goto drop; |
| 2654 | } |
| 2655 | |
| 2656 | /* packets form ge -> external device */ |
| 2657 | if (do_ge2ext_fast(state->in, skb)) { |
| 2658 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 2659 | return NF_STOLEN; |
| 2660 | goto drop; |
| 2661 | } |
| 2662 | |
| 2663 | return NF_ACCEPT; |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2664 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2665 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2666 | if (skb) |
| 2667 | printk_ratelimited(KERN_WARNING |
| 2668 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2669 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2670 | __func__, state->in->name, skb_hnat_iface(skb), |
| 2671 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2672 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2673 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2674 | |
| 2675 | return NF_DROP; |
| 2676 | } |
| 2677 | |
| 2678 | static unsigned int |
| 2679 | mtk_hnat_br_nf_local_out(void *priv, struct sk_buff *skb, |
| 2680 | const struct nf_hook_state *state) |
| 2681 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2682 | if (!skb) |
| 2683 | goto drop; |
| 2684 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2685 | post_routing_print(skb, state->in, state->out, __func__); |
| 2686 | |
| 2687 | if (!mtk_hnat_nf_post_routing(skb, state->out, 0, __func__)) |
| 2688 | return NF_ACCEPT; |
| 2689 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2690 | drop: |
| 2691 | if (skb) |
| 2692 | trace_printk( |
| 2693 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2694 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2695 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2696 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2697 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2698 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2699 | |
| 2700 | return NF_DROP; |
| 2701 | } |
| 2702 | |
| 2703 | static unsigned int |
| 2704 | mtk_hnat_ipv4_nf_local_out(void *priv, struct sk_buff *skb, |
| 2705 | const struct nf_hook_state *state) |
| 2706 | { |
| 2707 | struct sk_buff *new_skb; |
| 2708 | struct foe_entry *entry; |
| 2709 | struct iphdr *iph; |
| 2710 | |
| 2711 | if (!skb_hnat_is_hashed(skb)) |
| 2712 | return NF_ACCEPT; |
| 2713 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2714 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2715 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2716 | return NF_ACCEPT; |
| 2717 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2718 | entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2719 | |
| 2720 | if (unlikely(skb_headroom(skb) < FOE_INFO_LEN)) { |
| 2721 | new_skb = skb_realloc_headroom(skb, FOE_INFO_LEN); |
| 2722 | if (!new_skb) { |
| 2723 | dev_info(hnat_priv->dev, "%s:drop\n", __func__); |
| 2724 | return NF_DROP; |
| 2725 | } |
| 2726 | dev_kfree_skb(skb); |
| 2727 | skb = new_skb; |
| 2728 | } |
| 2729 | |
| 2730 | /* Make the flow from local not be bound. */ |
| 2731 | iph = ip_hdr(skb); |
| 2732 | if (iph->protocol == IPPROTO_IPV6) { |
| 2733 | entry->udib1.pkt_type = IPV6_6RD; |
| 2734 | hnat_set_head_frags(state, skb, 0, hnat_set_alg); |
| 2735 | } else { |
| 2736 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 2737 | } |
| 2738 | |
| 2739 | return NF_ACCEPT; |
| 2740 | } |
| 2741 | |
| 2742 | static unsigned int mtk_hnat_br_nf_forward(void *priv, |
| 2743 | struct sk_buff *skb, |
| 2744 | const struct nf_hook_state *state) |
| 2745 | { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 2746 | if ((hnat_priv->data->version == MTK_HNAT_V1_2) && |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 2747 | unlikely(IS_EXT(state->in) && IS_EXT(state->out))) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2748 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 2749 | |
| 2750 | return NF_ACCEPT; |
| 2751 | } |
| 2752 | |
| 2753 | static struct nf_hook_ops mtk_hnat_nf_ops[] __read_mostly = { |
| 2754 | { |
| 2755 | .hook = mtk_hnat_ipv4_nf_pre_routing, |
| 2756 | .pf = NFPROTO_IPV4, |
| 2757 | .hooknum = NF_INET_PRE_ROUTING, |
| 2758 | .priority = NF_IP_PRI_FIRST + 1, |
| 2759 | }, |
| 2760 | { |
| 2761 | .hook = mtk_hnat_ipv6_nf_pre_routing, |
| 2762 | .pf = NFPROTO_IPV6, |
| 2763 | .hooknum = NF_INET_PRE_ROUTING, |
| 2764 | .priority = NF_IP_PRI_FIRST + 1, |
| 2765 | }, |
| 2766 | { |
| 2767 | .hook = mtk_hnat_ipv6_nf_post_routing, |
| 2768 | .pf = NFPROTO_IPV6, |
| 2769 | .hooknum = NF_INET_POST_ROUTING, |
| 2770 | .priority = NF_IP_PRI_LAST, |
| 2771 | }, |
| 2772 | { |
| 2773 | .hook = mtk_hnat_ipv6_nf_local_out, |
| 2774 | .pf = NFPROTO_IPV6, |
| 2775 | .hooknum = NF_INET_LOCAL_OUT, |
| 2776 | .priority = NF_IP_PRI_LAST, |
| 2777 | }, |
| 2778 | { |
| 2779 | .hook = mtk_hnat_ipv4_nf_post_routing, |
| 2780 | .pf = NFPROTO_IPV4, |
| 2781 | .hooknum = NF_INET_POST_ROUTING, |
| 2782 | .priority = NF_IP_PRI_LAST, |
| 2783 | }, |
| 2784 | { |
| 2785 | .hook = mtk_hnat_ipv4_nf_local_out, |
| 2786 | .pf = NFPROTO_IPV4, |
| 2787 | .hooknum = NF_INET_LOCAL_OUT, |
| 2788 | .priority = NF_IP_PRI_LAST, |
| 2789 | }, |
| 2790 | { |
| 2791 | .hook = mtk_hnat_br_nf_local_in, |
| 2792 | .pf = NFPROTO_BRIDGE, |
| 2793 | .hooknum = NF_BR_LOCAL_IN, |
| 2794 | .priority = NF_BR_PRI_FIRST, |
| 2795 | }, |
| 2796 | { |
| 2797 | .hook = mtk_hnat_br_nf_local_out, |
| 2798 | .pf = NFPROTO_BRIDGE, |
| 2799 | .hooknum = NF_BR_LOCAL_OUT, |
| 2800 | .priority = NF_BR_PRI_LAST - 1, |
| 2801 | }, |
| 2802 | { |
| 2803 | .hook = mtk_pong_hqos_handler, |
| 2804 | .pf = NFPROTO_BRIDGE, |
| 2805 | .hooknum = NF_BR_PRE_ROUTING, |
developer | 2b85f65 | 2021-08-19 16:09:50 +0800 | [diff] [blame] | 2806 | .priority = NF_BR_PRI_FIRST + 1, |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2807 | }, |
| 2808 | }; |
| 2809 | |
| 2810 | int hnat_register_nf_hooks(void) |
| 2811 | { |
| 2812 | return nf_register_net_hooks(&init_net, mtk_hnat_nf_ops, ARRAY_SIZE(mtk_hnat_nf_ops)); |
| 2813 | } |
| 2814 | |
| 2815 | void hnat_unregister_nf_hooks(void) |
| 2816 | { |
| 2817 | nf_unregister_net_hooks(&init_net, mtk_hnat_nf_ops, ARRAY_SIZE(mtk_hnat_nf_ops)); |
| 2818 | } |
| 2819 | |
| 2820 | int whnat_adjust_nf_hooks(void) |
| 2821 | { |
| 2822 | struct nf_hook_ops *hook = mtk_hnat_nf_ops; |
| 2823 | unsigned int n = ARRAY_SIZE(mtk_hnat_nf_ops); |
| 2824 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2825 | while (n-- > 0) { |
| 2826 | if (hook[n].hook == mtk_hnat_br_nf_local_in) { |
| 2827 | hook[n].hooknum = NF_BR_PRE_ROUTING; |
developer | 2b85f65 | 2021-08-19 16:09:50 +0800 | [diff] [blame] | 2828 | hook[n].priority = NF_BR_PRI_FIRST + 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2829 | } else if (hook[n].hook == mtk_hnat_br_nf_local_out) { |
| 2830 | hook[n].hooknum = NF_BR_POST_ROUTING; |
| 2831 | } else if (hook[n].hook == mtk_pong_hqos_handler) { |
| 2832 | hook[n].hook = mtk_hnat_br_nf_forward; |
| 2833 | hook[n].hooknum = NF_BR_FORWARD; |
| 2834 | hook[n].priority = NF_BR_PRI_LAST - 1; |
| 2835 | } |
| 2836 | } |
| 2837 | |
| 2838 | return 0; |
| 2839 | } |
| 2840 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2841 | int mtk_hqos_ptype_cb(struct sk_buff *skb, struct net_device *dev, |
| 2842 | struct packet_type *pt, struct net_device *unused) |
| 2843 | { |
| 2844 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
| 2845 | |
| 2846 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 2847 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 2848 | |
developer | 659fdeb | 2022-12-01 23:03:07 +0800 | [diff] [blame] | 2849 | if (do_hnat_ge_to_ext(skb, __func__) == -1) |
| 2850 | return 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2851 | |
| 2852 | return 0; |
| 2853 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2854 | |