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 | |
| 695 | foe = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)]; |
| 696 | if (foe->bfib1.state != BIND && |
| 697 | skb_hnat_reason(skb) == HIT_UNBIND_RATE_REACH) |
| 698 | memcpy(&headroom[skb_hnat_entry(skb)], skb->head, |
| 699 | sizeof(struct hnat_desc)); |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 700 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 701 | if (foe->bfib1.state == BIND) |
| 702 | memset(&headroom[skb_hnat_entry(skb)], 0, |
| 703 | sizeof(struct hnat_desc)); |
| 704 | } |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 705 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 706 | static unsigned int is_ppe_support_type(struct sk_buff *skb) |
| 707 | { |
| 708 | struct ethhdr *eth = NULL; |
| 709 | struct iphdr *iph = NULL; |
| 710 | struct ipv6hdr *ip6h = NULL; |
| 711 | struct iphdr _iphdr; |
| 712 | |
| 713 | eth = eth_hdr(skb); |
developer | fd2d742 | 2021-06-09 17:09:39 +0800 | [diff] [blame] | 714 | if (!is_magic_tag_valid(skb) || !IS_SPACE_AVAILABLE_HEAD(skb) || |
developer | b254f76 | 2022-01-20 20:06:25 +0800 | [diff] [blame] | 715 | is_broadcast_ether_addr(eth->h_dest)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 716 | return 0; |
| 717 | |
| 718 | switch (ntohs(skb->protocol)) { |
| 719 | case ETH_P_IP: |
| 720 | iph = ip_hdr(skb); |
| 721 | |
| 722 | /* do not accelerate non tcp/udp traffic */ |
| 723 | if ((iph->protocol == IPPROTO_TCP) || |
| 724 | (iph->protocol == IPPROTO_UDP) || |
| 725 | (iph->protocol == IPPROTO_IPV6)) { |
| 726 | return 1; |
| 727 | } |
| 728 | |
| 729 | break; |
| 730 | case ETH_P_IPV6: |
| 731 | ip6h = ipv6_hdr(skb); |
| 732 | |
| 733 | if ((ip6h->nexthdr == NEXTHDR_TCP) || |
| 734 | (ip6h->nexthdr == NEXTHDR_UDP)) { |
| 735 | return 1; |
| 736 | } else if (ip6h->nexthdr == NEXTHDR_IPIP) { |
| 737 | iph = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 738 | sizeof(_iphdr), &_iphdr); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 739 | if (unlikely(!iph)) |
| 740 | return 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 741 | |
| 742 | if ((iph->protocol == IPPROTO_TCP) || |
| 743 | (iph->protocol == IPPROTO_UDP)) { |
| 744 | return 1; |
| 745 | } |
| 746 | |
| 747 | } |
| 748 | |
| 749 | break; |
| 750 | case ETH_P_8021Q: |
| 751 | return 1; |
| 752 | } |
| 753 | |
| 754 | return 0; |
| 755 | } |
| 756 | |
| 757 | static unsigned int |
| 758 | mtk_hnat_ipv6_nf_pre_routing(void *priv, struct sk_buff *skb, |
| 759 | const struct nf_hook_state *state) |
| 760 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 761 | if (!skb) |
| 762 | goto drop; |
| 763 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 764 | if (!is_ppe_support_type(skb)) { |
| 765 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 766 | return NF_ACCEPT; |
| 767 | } |
| 768 | |
| 769 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 770 | |
| 771 | pre_routing_print(skb, state->in, state->out, __func__); |
| 772 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 773 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 774 | if (do_ext2ge_fast_try(state->in, skb)) { |
| 775 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 776 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 777 | return NF_ACCEPT; |
| 778 | } |
| 779 | |
| 780 | /* packets form ge -> external device |
| 781 | * For standalone wan interface |
| 782 | */ |
| 783 | if (do_ge2ext_fast(state->in, skb)) { |
| 784 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 785 | return NF_STOLEN; |
| 786 | goto drop; |
| 787 | } |
| 788 | |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 789 | |
| 790 | #if !(defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 791 | /* MapE need remove ipv6 header and pingpong. */ |
| 792 | if (do_mape_w2l_fast(state->in, skb)) { |
| 793 | if (!do_hnat_mape_w2l_fast(skb, state->in, __func__)) |
| 794 | return NF_STOLEN; |
| 795 | else |
| 796 | return NF_ACCEPT; |
| 797 | } |
| 798 | |
| 799 | if (is_from_mape(skb)) |
| 800 | clr_from_extge(skb); |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 801 | #endif |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 802 | if (xlat_toggle) |
| 803 | mtk_464xlat_pre_process(skb); |
| 804 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 805 | return NF_ACCEPT; |
| 806 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 807 | if (skb) |
| 808 | printk_ratelimited(KERN_WARNING |
| 809 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 810 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 811 | __func__, state->in->name, skb_hnat_iface(skb), |
| 812 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 813 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 814 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 815 | |
| 816 | return NF_DROP; |
| 817 | } |
| 818 | |
| 819 | static unsigned int |
| 820 | mtk_hnat_ipv4_nf_pre_routing(void *priv, struct sk_buff *skb, |
| 821 | const struct nf_hook_state *state) |
| 822 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 823 | if (!skb) |
| 824 | goto drop; |
| 825 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 826 | if (!is_ppe_support_type(skb)) { |
| 827 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 828 | return NF_ACCEPT; |
| 829 | } |
| 830 | |
| 831 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 832 | |
| 833 | pre_routing_print(skb, state->in, state->out, __func__); |
| 834 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 835 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 836 | if (do_ext2ge_fast_try(state->in, skb)) { |
| 837 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 838 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 839 | return NF_ACCEPT; |
| 840 | } |
| 841 | |
| 842 | /* packets form ge -> external device |
| 843 | * For standalone wan interface |
| 844 | */ |
| 845 | if (do_ge2ext_fast(state->in, skb)) { |
| 846 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 847 | return NF_STOLEN; |
| 848 | goto drop; |
| 849 | } |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 850 | if (xlat_toggle) |
| 851 | mtk_464xlat_pre_process(skb); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 852 | |
| 853 | return NF_ACCEPT; |
| 854 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 855 | if (skb) |
| 856 | printk_ratelimited(KERN_WARNING |
| 857 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 858 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 859 | __func__, state->in->name, skb_hnat_iface(skb), |
| 860 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 861 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 862 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 863 | |
| 864 | return NF_DROP; |
| 865 | } |
| 866 | |
| 867 | static unsigned int |
| 868 | mtk_hnat_br_nf_local_in(void *priv, struct sk_buff *skb, |
| 869 | const struct nf_hook_state *state) |
| 870 | { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 871 | struct vlan_ethhdr *veth; |
| 872 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 873 | if (!skb) |
| 874 | goto drop; |
| 875 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 876 | if (IS_HQOS_MODE && hnat_priv->data->whnat) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 877 | veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
| 878 | |
| 879 | if (eth_hdr(skb)->h_proto == HQOS_MAGIC_TAG) { |
| 880 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 881 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 882 | } |
| 883 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 884 | |
| 885 | if (!HAS_HQOS_MAGIC_TAG(skb) && !is_ppe_support_type(skb)) { |
| 886 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 887 | return NF_ACCEPT; |
| 888 | } |
| 889 | |
| 890 | hnat_set_head_frags(state, skb, -1, hnat_set_iif); |
| 891 | |
| 892 | pre_routing_print(skb, state->in, state->out, __func__); |
| 893 | |
| 894 | if (unlikely(debug_level >= 7)) { |
| 895 | hnat_cpu_reason_cnt(skb); |
| 896 | if (skb_hnat_reason(skb) == dbg_cpu_reason) |
| 897 | foe_dump_pkt(skb); |
| 898 | } |
| 899 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 900 | /* packets from external devices -> xxx ,step 1 , learning stage & bound stage*/ |
| 901 | if ((skb_hnat_iface(skb) == FOE_MAGIC_EXT) && !is_from_extge(skb) && |
| 902 | !is_multicast_ether_addr(eth_hdr(skb)->h_dest)) { |
| 903 | if (!hnat_priv->g_ppdev) |
| 904 | hnat_priv->g_ppdev = dev_get_by_name(&init_net, hnat_priv->ppd); |
| 905 | |
| 906 | if (!do_hnat_ext_to_ge(skb, state->in, __func__)) |
| 907 | return NF_STOLEN; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 908 | return NF_ACCEPT; |
| 909 | } |
| 910 | |
| 911 | if (hnat_priv->data->whnat) { |
| 912 | if (skb_hnat_iface(skb) == FOE_MAGIC_EXT) |
| 913 | clr_from_extge(skb); |
| 914 | |
| 915 | /* packets from external devices -> xxx ,step 2, learning stage */ |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 916 | if (do_ext2ge_fast_learn(state->in, skb) && (!qos_toggle || |
| 917 | (qos_toggle && eth_hdr(skb)->h_proto != HQOS_MAGIC_TAG))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 918 | if (!do_hnat_ext_to_ge2(skb, __func__)) |
| 919 | return NF_STOLEN; |
| 920 | goto drop; |
| 921 | } |
| 922 | |
| 923 | /* packets form ge -> external device */ |
| 924 | if (do_ge2ext_fast(state->in, skb)) { |
| 925 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 926 | return NF_STOLEN; |
| 927 | goto drop; |
| 928 | } |
| 929 | } |
| 930 | |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 931 | #if !(defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 932 | /* MapE need remove ipv6 header and pingpong. (bridge mode) */ |
| 933 | if (do_mape_w2l_fast(state->in, skb)) { |
| 934 | if (!do_hnat_mape_w2l_fast(skb, state->in, __func__)) |
| 935 | return NF_STOLEN; |
| 936 | else |
| 937 | return NF_ACCEPT; |
| 938 | } |
developer | f4c370a | 2022-10-08 17:01:19 +0800 | [diff] [blame] | 939 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 940 | return NF_ACCEPT; |
| 941 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 942 | if (skb) |
| 943 | printk_ratelimited(KERN_WARNING |
| 944 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 945 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 946 | __func__, state->in->name, skb_hnat_iface(skb), |
| 947 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 948 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 949 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 950 | |
| 951 | return NF_DROP; |
| 952 | } |
| 953 | |
| 954 | static unsigned int hnat_ipv6_get_nexthop(struct sk_buff *skb, |
| 955 | const struct net_device *out, |
| 956 | struct flow_offload_hw_path *hw_path) |
| 957 | { |
| 958 | const struct in6_addr *ipv6_nexthop; |
| 959 | struct neighbour *neigh = NULL; |
| 960 | struct dst_entry *dst = skb_dst(skb); |
| 961 | struct ethhdr *eth; |
| 962 | |
| 963 | if (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) { |
| 964 | memcpy(eth_hdr(skb)->h_source, hw_path->eth_src, ETH_ALEN); |
| 965 | memcpy(eth_hdr(skb)->h_dest, hw_path->eth_dest, ETH_ALEN); |
| 966 | return 0; |
| 967 | } |
| 968 | |
| 969 | rcu_read_lock_bh(); |
| 970 | ipv6_nexthop = |
| 971 | rt6_nexthop((struct rt6_info *)dst, &ipv6_hdr(skb)->daddr); |
| 972 | neigh = __ipv6_neigh_lookup_noref(dst->dev, ipv6_nexthop); |
| 973 | if (unlikely(!neigh)) { |
| 974 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI6)\n", __func__, |
| 975 | &ipv6_hdr(skb)->daddr); |
| 976 | rcu_read_unlock_bh(); |
| 977 | return -1; |
| 978 | } |
| 979 | |
| 980 | /* why do we get all zero ethernet address ? */ |
| 981 | if (!is_valid_ether_addr(neigh->ha)) { |
| 982 | rcu_read_unlock_bh(); |
| 983 | return -1; |
| 984 | } |
| 985 | |
| 986 | if (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPIP) { |
| 987 | /*copy ether type for DS-Lite and MapE */ |
| 988 | eth = (struct ethhdr *)(skb->data - ETH_HLEN); |
| 989 | eth->h_proto = skb->protocol; |
| 990 | } else { |
| 991 | eth = eth_hdr(skb); |
| 992 | } |
| 993 | |
| 994 | ether_addr_copy(eth->h_dest, neigh->ha); |
| 995 | ether_addr_copy(eth->h_source, out->dev_addr); |
| 996 | |
| 997 | rcu_read_unlock_bh(); |
| 998 | |
| 999 | return 0; |
| 1000 | } |
| 1001 | |
| 1002 | static unsigned int hnat_ipv4_get_nexthop(struct sk_buff *skb, |
| 1003 | const struct net_device *out, |
| 1004 | struct flow_offload_hw_path *hw_path) |
| 1005 | { |
| 1006 | u32 nexthop; |
| 1007 | struct neighbour *neigh; |
| 1008 | struct dst_entry *dst = skb_dst(skb); |
| 1009 | struct rtable *rt = (struct rtable *)dst; |
| 1010 | struct net_device *dev = (__force struct net_device *)out; |
| 1011 | |
| 1012 | if (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) { |
| 1013 | memcpy(eth_hdr(skb)->h_source, hw_path->eth_src, ETH_ALEN); |
| 1014 | memcpy(eth_hdr(skb)->h_dest, hw_path->eth_dest, ETH_ALEN); |
| 1015 | return 0; |
| 1016 | } |
| 1017 | |
| 1018 | rcu_read_lock_bh(); |
| 1019 | nexthop = (__force u32)rt_nexthop(rt, ip_hdr(skb)->daddr); |
| 1020 | neigh = __ipv4_neigh_lookup_noref(dev, nexthop); |
| 1021 | if (unlikely(!neigh)) { |
| 1022 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI4)\n", __func__, |
| 1023 | &ip_hdr(skb)->daddr); |
| 1024 | rcu_read_unlock_bh(); |
| 1025 | return -1; |
| 1026 | } |
| 1027 | |
| 1028 | /* why do we get all zero ethernet address ? */ |
| 1029 | if (!is_valid_ether_addr(neigh->ha)) { |
| 1030 | rcu_read_unlock_bh(); |
| 1031 | return -1; |
| 1032 | } |
| 1033 | |
| 1034 | memcpy(eth_hdr(skb)->h_dest, neigh->ha, ETH_ALEN); |
| 1035 | memcpy(eth_hdr(skb)->h_source, out->dev_addr, ETH_ALEN); |
| 1036 | |
| 1037 | rcu_read_unlock_bh(); |
| 1038 | |
| 1039 | return 0; |
| 1040 | } |
| 1041 | |
| 1042 | static u16 ppe_get_chkbase(struct iphdr *iph) |
| 1043 | { |
| 1044 | u16 org_chksum = ntohs(iph->check); |
| 1045 | u16 org_tot_len = ntohs(iph->tot_len); |
| 1046 | u16 org_id = ntohs(iph->id); |
| 1047 | u16 chksum_tmp, tot_len_tmp, id_tmp; |
| 1048 | u32 tmp = 0; |
| 1049 | u16 chksum_base = 0; |
| 1050 | |
| 1051 | chksum_tmp = ~(org_chksum); |
| 1052 | tot_len_tmp = ~(org_tot_len); |
| 1053 | id_tmp = ~(org_id); |
| 1054 | tmp = chksum_tmp + tot_len_tmp + id_tmp; |
| 1055 | tmp = ((tmp >> 16) & 0x7) + (tmp & 0xFFFF); |
| 1056 | tmp = ((tmp >> 16) & 0x7) + (tmp & 0xFFFF); |
| 1057 | chksum_base = tmp & 0xFFFF; |
| 1058 | |
| 1059 | return chksum_base; |
| 1060 | } |
| 1061 | |
| 1062 | struct foe_entry ppe_fill_L2_info(struct ethhdr *eth, struct foe_entry entry, |
| 1063 | struct flow_offload_hw_path *hw_path) |
| 1064 | { |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1065 | switch ((int)entry.bfib1.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1066 | case IPV4_HNAPT: |
| 1067 | case IPV4_HNAT: |
| 1068 | entry.ipv4_hnapt.dmac_hi = swab32(*((u32 *)eth->h_dest)); |
| 1069 | entry.ipv4_hnapt.dmac_lo = swab16(*((u16 *)ð->h_dest[4])); |
| 1070 | entry.ipv4_hnapt.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1071 | entry.ipv4_hnapt.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1072 | entry.ipv4_hnapt.pppoe_id = hw_path->pppoe_sid; |
| 1073 | break; |
| 1074 | case IPV4_DSLITE: |
| 1075 | case IPV4_MAP_E: |
| 1076 | case IPV6_6RD: |
| 1077 | case IPV6_5T_ROUTE: |
| 1078 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1079 | case IPV6_HNAPT: |
| 1080 | case IPV6_HNAT: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1081 | entry.ipv6_5t_route.dmac_hi = swab32(*((u32 *)eth->h_dest)); |
| 1082 | entry.ipv6_5t_route.dmac_lo = swab16(*((u16 *)ð->h_dest[4])); |
| 1083 | entry.ipv6_5t_route.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1084 | entry.ipv6_5t_route.smac_lo = |
| 1085 | swab16(*((u16 *)ð->h_source[4])); |
| 1086 | entry.ipv6_5t_route.pppoe_id = hw_path->pppoe_sid; |
| 1087 | break; |
| 1088 | } |
| 1089 | return entry; |
| 1090 | } |
| 1091 | |
| 1092 | struct foe_entry ppe_fill_info_blk(struct ethhdr *eth, struct foe_entry entry, |
| 1093 | struct flow_offload_hw_path *hw_path) |
| 1094 | { |
| 1095 | entry.bfib1.psn = (hw_path->flags & FLOW_OFFLOAD_PATH_PPPOE) ? 1 : 0; |
| 1096 | entry.bfib1.vlan_layer += (hw_path->flags & FLOW_OFFLOAD_PATH_VLAN) ? 1 : 0; |
| 1097 | entry.bfib1.vpm = (entry.bfib1.vlan_layer) ? 1 : 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1098 | entry.bfib1.cah = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1099 | entry.bfib1.time_stamp = (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1100 | hnat_priv->data->version == MTK_HNAT_V3) ? |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1101 | readl(hnat_priv->fe_base + 0x0010) & (0xFF) : |
| 1102 | readl(hnat_priv->fe_base + 0x0010) & (0x7FFF); |
| 1103 | |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1104 | switch ((int)entry.bfib1.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1105 | case IPV4_HNAPT: |
| 1106 | case IPV4_HNAT: |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1107 | if (hnat_priv->data->mcast && |
| 1108 | is_multicast_ether_addr(ð->h_dest[0])) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1109 | entry.ipv4_hnapt.iblk2.mcast = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1110 | if (hnat_priv->data->version == MTK_HNAT_V1_3) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1111 | entry.bfib1.sta = 1; |
| 1112 | entry.ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 1113 | } |
| 1114 | } else { |
| 1115 | entry.ipv4_hnapt.iblk2.mcast = 0; |
| 1116 | } |
| 1117 | |
| 1118 | entry.ipv4_hnapt.iblk2.port_ag = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1119 | (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1120 | hnat_priv->data->version == MTK_HNAT_V3) ? 0xf : 0x3f; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1121 | break; |
| 1122 | case IPV4_DSLITE: |
| 1123 | case IPV4_MAP_E: |
| 1124 | case IPV6_6RD: |
| 1125 | case IPV6_5T_ROUTE: |
| 1126 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1127 | case IPV6_HNAPT: |
| 1128 | case IPV6_HNAT: |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1129 | if (hnat_priv->data->mcast && |
| 1130 | is_multicast_ether_addr(ð->h_dest[0])) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1131 | entry.ipv6_5t_route.iblk2.mcast = 1; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1132 | if (hnat_priv->data->version == MTK_HNAT_V1_3) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1133 | entry.bfib1.sta = 1; |
| 1134 | entry.ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 1135 | } |
| 1136 | } else { |
| 1137 | entry.ipv6_5t_route.iblk2.mcast = 0; |
| 1138 | } |
| 1139 | |
| 1140 | entry.ipv6_5t_route.iblk2.port_ag = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1141 | (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1142 | hnat_priv->data->version == MTK_HNAT_V3) ? 0xf : 0x3f; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1143 | break; |
| 1144 | } |
| 1145 | return entry; |
| 1146 | } |
| 1147 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1148 | static unsigned int skb_to_hnat_info(struct sk_buff *skb, |
| 1149 | const struct net_device *dev, |
| 1150 | struct foe_entry *foe, |
| 1151 | struct flow_offload_hw_path *hw_path) |
| 1152 | { |
| 1153 | struct foe_entry entry = { 0 }; |
| 1154 | int whnat = IS_WHNAT(dev); |
| 1155 | struct ethhdr *eth; |
| 1156 | struct iphdr *iph; |
| 1157 | struct ipv6hdr *ip6h; |
| 1158 | struct tcpudphdr _ports; |
| 1159 | const struct tcpudphdr *pptr; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1160 | struct nf_conn *ct; |
| 1161 | enum ip_conntrack_info ctinfo; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1162 | u32 gmac = NR_DISCARD; |
| 1163 | int udp = 0; |
| 1164 | u32 qid = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1165 | u32 port_id = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1166 | int mape = 0; |
| 1167 | |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1168 | ct = nf_ct_get(skb, &ctinfo); |
| 1169 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1170 | if (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPIP) |
| 1171 | /* point to ethernet header for DS-Lite and MapE */ |
| 1172 | eth = (struct ethhdr *)(skb->data - ETH_HLEN); |
| 1173 | else |
| 1174 | eth = eth_hdr(skb); |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1175 | |
| 1176 | /*do not bind multicast if PPE mcast not enable*/ |
| 1177 | if (!hnat_priv->data->mcast && is_multicast_ether_addr(eth->h_dest)) |
| 1178 | return 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1179 | |
| 1180 | entry.bfib1.pkt_type = foe->udib1.pkt_type; /* Get packte type state*/ |
developer | f94d886 | 2022-03-29 10:11:17 +0800 | [diff] [blame] | 1181 | entry.bfib1.state = foe->udib1.state; |
| 1182 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1183 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1184 | entry.bfib1.sp = foe->udib1.sp; |
| 1185 | #endif |
| 1186 | |
| 1187 | switch (ntohs(eth->h_proto)) { |
| 1188 | case ETH_P_IP: |
| 1189 | iph = ip_hdr(skb); |
| 1190 | switch (iph->protocol) { |
| 1191 | case IPPROTO_UDP: |
| 1192 | udp = 1; |
| 1193 | /* fallthrough */ |
| 1194 | case IPPROTO_TCP: |
| 1195 | entry.ipv4_hnapt.etype = htons(ETH_P_IP); |
| 1196 | |
| 1197 | /* DS-Lite WAN->LAN */ |
| 1198 | if (entry.ipv4_hnapt.bfib1.pkt_type == IPV4_DSLITE || |
| 1199 | entry.ipv4_hnapt.bfib1.pkt_type == IPV4_MAP_E) { |
| 1200 | entry.ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 1201 | entry.ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 1202 | entry.ipv4_dslite.sport = |
| 1203 | foe->ipv4_dslite.sport; |
| 1204 | entry.ipv4_dslite.dport = |
| 1205 | foe->ipv4_dslite.dport; |
| 1206 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1207 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1208 | if (entry.bfib1.pkt_type == IPV4_MAP_E) { |
| 1209 | pptr = skb_header_pointer(skb, |
| 1210 | iph->ihl * 4, |
| 1211 | sizeof(_ports), |
| 1212 | &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 1213 | if (unlikely(!pptr)) |
| 1214 | return -1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1215 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1216 | entry.ipv4_mape.new_sip = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1217 | ntohl(iph->saddr); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1218 | entry.ipv4_mape.new_dip = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1219 | ntohl(iph->daddr); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1220 | entry.ipv4_mape.new_sport = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1221 | ntohs(pptr->src); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1222 | entry.ipv4_mape.new_dport = |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1223 | ntohs(pptr->dst); |
| 1224 | } |
| 1225 | #endif |
| 1226 | |
| 1227 | entry.ipv4_dslite.tunnel_sipv6_0 = |
| 1228 | foe->ipv4_dslite.tunnel_sipv6_0; |
| 1229 | entry.ipv4_dslite.tunnel_sipv6_1 = |
| 1230 | foe->ipv4_dslite.tunnel_sipv6_1; |
| 1231 | entry.ipv4_dslite.tunnel_sipv6_2 = |
| 1232 | foe->ipv4_dslite.tunnel_sipv6_2; |
| 1233 | entry.ipv4_dslite.tunnel_sipv6_3 = |
| 1234 | foe->ipv4_dslite.tunnel_sipv6_3; |
| 1235 | |
| 1236 | entry.ipv4_dslite.tunnel_dipv6_0 = |
| 1237 | foe->ipv4_dslite.tunnel_dipv6_0; |
| 1238 | entry.ipv4_dslite.tunnel_dipv6_1 = |
| 1239 | foe->ipv4_dslite.tunnel_dipv6_1; |
| 1240 | entry.ipv4_dslite.tunnel_dipv6_2 = |
| 1241 | foe->ipv4_dslite.tunnel_dipv6_2; |
| 1242 | entry.ipv4_dslite.tunnel_dipv6_3 = |
| 1243 | foe->ipv4_dslite.tunnel_dipv6_3; |
| 1244 | |
| 1245 | entry.ipv4_dslite.bfib1.rmt = 1; |
| 1246 | entry.ipv4_dslite.iblk2.dscp = iph->tos; |
| 1247 | entry.ipv4_dslite.vlan1 = hw_path->vlan_id; |
| 1248 | if (hnat_priv->data->per_flow_accounting) |
| 1249 | entry.ipv4_dslite.iblk2.mibf = 1; |
| 1250 | |
| 1251 | } else { |
| 1252 | entry.ipv4_hnapt.iblk2.dscp = iph->tos; |
| 1253 | if (hnat_priv->data->per_flow_accounting) |
| 1254 | entry.ipv4_hnapt.iblk2.mibf = 1; |
| 1255 | |
| 1256 | entry.ipv4_hnapt.vlan1 = hw_path->vlan_id; |
| 1257 | |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1258 | if (skb_vlan_tag_present(skb)) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1259 | entry.bfib1.vlan_layer += 1; |
| 1260 | |
| 1261 | if (entry.ipv4_hnapt.vlan1) |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1262 | entry.ipv4_hnapt.vlan2 = |
| 1263 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1264 | else |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1265 | entry.ipv4_hnapt.vlan1 = |
| 1266 | skb->vlan_tci; |
| 1267 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1268 | |
| 1269 | entry.ipv4_hnapt.sip = foe->ipv4_hnapt.sip; |
| 1270 | entry.ipv4_hnapt.dip = foe->ipv4_hnapt.dip; |
| 1271 | entry.ipv4_hnapt.sport = foe->ipv4_hnapt.sport; |
| 1272 | entry.ipv4_hnapt.dport = foe->ipv4_hnapt.dport; |
| 1273 | |
| 1274 | entry.ipv4_hnapt.new_sip = ntohl(iph->saddr); |
| 1275 | entry.ipv4_hnapt.new_dip = ntohl(iph->daddr); |
| 1276 | } |
| 1277 | |
| 1278 | entry.ipv4_hnapt.bfib1.udp = udp; |
| 1279 | if (IS_IPV4_HNAPT(foe)) { |
| 1280 | pptr = skb_header_pointer(skb, iph->ihl * 4, |
| 1281 | sizeof(_ports), |
| 1282 | &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 1283 | if (unlikely(!pptr)) |
| 1284 | return -1; |
| 1285 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1286 | entry.ipv4_hnapt.new_sport = ntohs(pptr->src); |
| 1287 | entry.ipv4_hnapt.new_dport = ntohs(pptr->dst); |
| 1288 | } |
| 1289 | |
| 1290 | break; |
| 1291 | |
| 1292 | default: |
| 1293 | return -1; |
| 1294 | } |
| 1295 | trace_printk( |
| 1296 | "[%s]skb->head=%p, skb->data=%p,ip_hdr=%p, skb->len=%d, skb->data_len=%d\n", |
| 1297 | __func__, skb->head, skb->data, iph, skb->len, |
| 1298 | skb->data_len); |
| 1299 | break; |
| 1300 | |
| 1301 | case ETH_P_IPV6: |
| 1302 | ip6h = ipv6_hdr(skb); |
| 1303 | switch (ip6h->nexthdr) { |
| 1304 | case NEXTHDR_UDP: |
| 1305 | udp = 1; |
| 1306 | /* fallthrough */ |
| 1307 | case NEXTHDR_TCP: /* IPv6-5T or IPv6-3T */ |
| 1308 | entry.ipv6_5t_route.etype = htons(ETH_P_IPV6); |
| 1309 | |
| 1310 | entry.ipv6_5t_route.vlan1 = hw_path->vlan_id; |
| 1311 | |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1312 | if (skb_vlan_tag_present(skb)) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1313 | entry.bfib1.vlan_layer += 1; |
| 1314 | |
| 1315 | if (entry.ipv6_5t_route.vlan1) |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1316 | entry.ipv6_5t_route.vlan2 = |
| 1317 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1318 | else |
developer | dfc8ef5 | 2022-12-06 14:00:09 +0800 | [diff] [blame] | 1319 | entry.ipv6_5t_route.vlan1 = |
| 1320 | skb->vlan_tci; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1321 | } |
| 1322 | |
| 1323 | if (hnat_priv->data->per_flow_accounting) |
| 1324 | entry.ipv6_5t_route.iblk2.mibf = 1; |
| 1325 | entry.ipv6_5t_route.bfib1.udp = udp; |
| 1326 | |
| 1327 | if (IS_IPV6_6RD(foe)) { |
| 1328 | entry.ipv6_5t_route.bfib1.rmt = 1; |
| 1329 | entry.ipv6_6rd.tunnel_sipv4 = |
| 1330 | foe->ipv6_6rd.tunnel_sipv4; |
| 1331 | entry.ipv6_6rd.tunnel_dipv4 = |
| 1332 | foe->ipv6_6rd.tunnel_dipv4; |
| 1333 | } |
| 1334 | |
| 1335 | entry.ipv6_3t_route.ipv6_sip0 = |
| 1336 | foe->ipv6_3t_route.ipv6_sip0; |
| 1337 | entry.ipv6_3t_route.ipv6_sip1 = |
| 1338 | foe->ipv6_3t_route.ipv6_sip1; |
| 1339 | entry.ipv6_3t_route.ipv6_sip2 = |
| 1340 | foe->ipv6_3t_route.ipv6_sip2; |
| 1341 | entry.ipv6_3t_route.ipv6_sip3 = |
| 1342 | foe->ipv6_3t_route.ipv6_sip3; |
| 1343 | |
| 1344 | entry.ipv6_3t_route.ipv6_dip0 = |
| 1345 | foe->ipv6_3t_route.ipv6_dip0; |
| 1346 | entry.ipv6_3t_route.ipv6_dip1 = |
| 1347 | foe->ipv6_3t_route.ipv6_dip1; |
| 1348 | entry.ipv6_3t_route.ipv6_dip2 = |
| 1349 | foe->ipv6_3t_route.ipv6_dip2; |
| 1350 | entry.ipv6_3t_route.ipv6_dip3 = |
| 1351 | foe->ipv6_3t_route.ipv6_dip3; |
| 1352 | |
developer | 729f027 | 2021-06-09 17:28:38 +0800 | [diff] [blame] | 1353 | if (IS_IPV6_3T_ROUTE(foe)) { |
| 1354 | entry.ipv6_3t_route.prot = |
| 1355 | foe->ipv6_3t_route.prot; |
| 1356 | entry.ipv6_3t_route.hph = |
| 1357 | foe->ipv6_3t_route.hph; |
| 1358 | } |
| 1359 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1360 | if (IS_IPV6_5T_ROUTE(foe) || IS_IPV6_6RD(foe)) { |
| 1361 | entry.ipv6_5t_route.sport = |
| 1362 | foe->ipv6_5t_route.sport; |
| 1363 | entry.ipv6_5t_route.dport = |
| 1364 | foe->ipv6_5t_route.dport; |
| 1365 | } |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1366 | |
| 1367 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
| 1368 | if (ct && (ct->status & IPS_SRC_NAT)) { |
| 1369 | entry.bfib1.pkt_type = IPV6_HNAPT; |
| 1370 | |
| 1371 | if (IS_WAN(dev) || IS_DSA_WAN(dev)) { |
| 1372 | entry.ipv6_hnapt.eg_ipv6_dir = |
| 1373 | IPV6_SNAT; |
| 1374 | entry.ipv6_hnapt.new_ipv6_ip0 = |
| 1375 | ntohl(ip6h->saddr.s6_addr32[0]); |
| 1376 | entry.ipv6_hnapt.new_ipv6_ip1 = |
| 1377 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 1378 | entry.ipv6_hnapt.new_ipv6_ip2 = |
| 1379 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 1380 | entry.ipv6_hnapt.new_ipv6_ip3 = |
| 1381 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 1382 | } else { |
| 1383 | entry.ipv6_hnapt.eg_ipv6_dir = |
| 1384 | IPV6_DNAT; |
| 1385 | entry.ipv6_hnapt.new_ipv6_ip0 = |
| 1386 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 1387 | entry.ipv6_hnapt.new_ipv6_ip1 = |
| 1388 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 1389 | entry.ipv6_hnapt.new_ipv6_ip2 = |
| 1390 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 1391 | entry.ipv6_hnapt.new_ipv6_ip3 = |
| 1392 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 1393 | } |
| 1394 | |
| 1395 | pptr = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 1396 | sizeof(_ports), |
| 1397 | &_ports); |
| 1398 | if (unlikely(!pptr)) |
| 1399 | return -1; |
| 1400 | |
| 1401 | entry.ipv6_hnapt.new_sport = ntohs(pptr->src); |
| 1402 | entry.ipv6_hnapt.new_dport = ntohs(pptr->dst); |
| 1403 | } |
| 1404 | #endif |
| 1405 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1406 | entry.ipv6_5t_route.iblk2.dscp = |
| 1407 | (ip6h->priority << 4 | |
| 1408 | (ip6h->flow_lbl[0] >> 4)); |
| 1409 | break; |
| 1410 | |
| 1411 | case NEXTHDR_IPIP: |
| 1412 | if ((!mape_toggle && |
| 1413 | entry.bfib1.pkt_type == IPV4_DSLITE) || |
| 1414 | (mape_toggle && |
| 1415 | entry.bfib1.pkt_type == IPV4_MAP_E)) { |
| 1416 | /* DS-Lite LAN->WAN */ |
| 1417 | entry.ipv4_dslite.bfib1.udp = |
| 1418 | foe->ipv4_dslite.bfib1.udp; |
| 1419 | entry.ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 1420 | entry.ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 1421 | entry.ipv4_dslite.sport = |
| 1422 | foe->ipv4_dslite.sport; |
| 1423 | entry.ipv4_dslite.dport = |
| 1424 | foe->ipv4_dslite.dport; |
| 1425 | |
| 1426 | entry.ipv4_dslite.tunnel_sipv6_0 = |
| 1427 | ntohl(ip6h->saddr.s6_addr32[0]); |
| 1428 | entry.ipv4_dslite.tunnel_sipv6_1 = |
| 1429 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 1430 | entry.ipv4_dslite.tunnel_sipv6_2 = |
| 1431 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 1432 | entry.ipv4_dslite.tunnel_sipv6_3 = |
| 1433 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 1434 | |
| 1435 | entry.ipv4_dslite.tunnel_dipv6_0 = |
| 1436 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 1437 | entry.ipv4_dslite.tunnel_dipv6_1 = |
| 1438 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 1439 | entry.ipv4_dslite.tunnel_dipv6_2 = |
| 1440 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 1441 | entry.ipv4_dslite.tunnel_dipv6_3 = |
| 1442 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 1443 | |
| 1444 | ppe_fill_flow_lbl(&entry, ip6h); |
| 1445 | |
| 1446 | entry.ipv4_dslite.priority = ip6h->priority; |
| 1447 | entry.ipv4_dslite.hop_limit = ip6h->hop_limit; |
| 1448 | entry.ipv4_dslite.vlan1 = hw_path->vlan_id; |
| 1449 | if (hnat_priv->data->per_flow_accounting) |
| 1450 | entry.ipv4_dslite.iblk2.mibf = 1; |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1451 | /* Map-E LAN->WAN record inner IPv4 header info. */ |
developer | 8c707df | 2022-10-24 14:09:00 +0800 | [diff] [blame] | 1452 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1453 | if (mape_toggle) { |
| 1454 | entry.ipv4_dslite.iblk2.dscp = foe->ipv4_dslite.iblk2.dscp; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1455 | entry.ipv4_mape.new_sip = foe->ipv4_mape.new_sip; |
| 1456 | entry.ipv4_mape.new_dip = foe->ipv4_mape.new_dip; |
| 1457 | entry.ipv4_mape.new_sport = foe->ipv4_mape.new_sport; |
| 1458 | entry.ipv4_mape.new_dport = foe->ipv4_mape.new_dport; |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 1459 | } |
| 1460 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1461 | } else if (mape_toggle && |
| 1462 | entry.bfib1.pkt_type == IPV4_HNAPT) { |
| 1463 | /* MapE LAN -> WAN */ |
| 1464 | mape = 1; |
| 1465 | entry.ipv4_hnapt.iblk2.dscp = |
| 1466 | foe->ipv4_hnapt.iblk2.dscp; |
| 1467 | if (hnat_priv->data->per_flow_accounting) |
| 1468 | entry.ipv4_hnapt.iblk2.mibf = 1; |
| 1469 | |
developer | bb81641 | 2021-06-11 15:43:44 +0800 | [diff] [blame] | 1470 | if (IS_GMAC1_MODE) |
| 1471 | entry.ipv4_hnapt.vlan1 = 1; |
| 1472 | else |
| 1473 | entry.ipv4_hnapt.vlan1 = hw_path->vlan_id; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1474 | |
| 1475 | entry.ipv4_hnapt.sip = foe->ipv4_hnapt.sip; |
| 1476 | entry.ipv4_hnapt.dip = foe->ipv4_hnapt.dip; |
| 1477 | entry.ipv4_hnapt.sport = foe->ipv4_hnapt.sport; |
| 1478 | entry.ipv4_hnapt.dport = foe->ipv4_hnapt.dport; |
| 1479 | |
| 1480 | entry.ipv4_hnapt.new_sip = |
| 1481 | foe->ipv4_hnapt.new_sip; |
| 1482 | entry.ipv4_hnapt.new_dip = |
| 1483 | foe->ipv4_hnapt.new_dip; |
| 1484 | entry.ipv4_hnapt.etype = htons(ETH_P_IP); |
| 1485 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1486 | if (IS_HQOS_MODE) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1487 | entry.ipv4_hnapt.iblk2.qid = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1488 | (hnat_priv->data->version == |
| 1489 | MTK_HNAT_V2 || |
| 1490 | hnat_priv->data->version == |
| 1491 | MTK_HNAT_V3) ? |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1492 | skb->mark & 0x7f : skb->mark & 0xf; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1493 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1494 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1495 | (IS_HQOS_DL_MODE && |
| 1496 | IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1497 | (IS_PPPQ_MODE && |
| 1498 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1499 | entry.ipv4_hnapt.tport_id = 1; |
| 1500 | else |
| 1501 | entry.ipv4_hnapt.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1502 | #else |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1503 | entry.ipv4_hnapt.iblk2.fqos = 1; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1504 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1505 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1506 | |
| 1507 | entry.ipv4_hnapt.bfib1.udp = |
| 1508 | foe->ipv4_hnapt.bfib1.udp; |
| 1509 | |
| 1510 | entry.ipv4_hnapt.new_sport = |
| 1511 | foe->ipv4_hnapt.new_sport; |
| 1512 | entry.ipv4_hnapt.new_dport = |
| 1513 | foe->ipv4_hnapt.new_dport; |
| 1514 | mape_l2w_v6h = *ip6h; |
| 1515 | } |
| 1516 | break; |
| 1517 | |
| 1518 | default: |
| 1519 | return -1; |
| 1520 | } |
| 1521 | |
| 1522 | trace_printk( |
| 1523 | "[%s]skb->head=%p, skb->data=%p,ipv6_hdr=%p, skb->len=%d, skb->data_len=%d\n", |
| 1524 | __func__, skb->head, skb->data, ip6h, skb->len, |
| 1525 | skb->data_len); |
| 1526 | break; |
| 1527 | |
| 1528 | default: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1529 | iph = ip_hdr(skb); |
| 1530 | switch (entry.bfib1.pkt_type) { |
| 1531 | case IPV6_6RD: /* 6RD LAN->WAN */ |
| 1532 | entry.ipv6_6rd.ipv6_sip0 = foe->ipv6_6rd.ipv6_sip0; |
| 1533 | entry.ipv6_6rd.ipv6_sip1 = foe->ipv6_6rd.ipv6_sip1; |
| 1534 | entry.ipv6_6rd.ipv6_sip2 = foe->ipv6_6rd.ipv6_sip2; |
| 1535 | entry.ipv6_6rd.ipv6_sip3 = foe->ipv6_6rd.ipv6_sip3; |
| 1536 | |
| 1537 | entry.ipv6_6rd.ipv6_dip0 = foe->ipv6_6rd.ipv6_dip0; |
| 1538 | entry.ipv6_6rd.ipv6_dip1 = foe->ipv6_6rd.ipv6_dip1; |
| 1539 | entry.ipv6_6rd.ipv6_dip2 = foe->ipv6_6rd.ipv6_dip2; |
| 1540 | entry.ipv6_6rd.ipv6_dip3 = foe->ipv6_6rd.ipv6_dip3; |
| 1541 | |
| 1542 | entry.ipv6_6rd.sport = foe->ipv6_6rd.sport; |
| 1543 | entry.ipv6_6rd.dport = foe->ipv6_6rd.dport; |
| 1544 | entry.ipv6_6rd.tunnel_sipv4 = ntohl(iph->saddr); |
| 1545 | entry.ipv6_6rd.tunnel_dipv4 = ntohl(iph->daddr); |
| 1546 | entry.ipv6_6rd.hdr_chksum = ppe_get_chkbase(iph); |
| 1547 | entry.ipv6_6rd.flag = (ntohs(iph->frag_off) >> 13); |
| 1548 | entry.ipv6_6rd.ttl = iph->ttl; |
| 1549 | entry.ipv6_6rd.dscp = iph->tos; |
| 1550 | entry.ipv6_6rd.per_flow_6rd_id = 1; |
| 1551 | entry.ipv6_6rd.vlan1 = hw_path->vlan_id; |
| 1552 | if (hnat_priv->data->per_flow_accounting) |
| 1553 | entry.ipv6_6rd.iblk2.mibf = 1; |
| 1554 | break; |
| 1555 | |
| 1556 | default: |
| 1557 | return -1; |
| 1558 | } |
| 1559 | } |
| 1560 | |
| 1561 | /* Fill Layer2 Info.*/ |
| 1562 | entry = ppe_fill_L2_info(eth, entry, hw_path); |
| 1563 | |
| 1564 | /* Fill Info Blk*/ |
| 1565 | entry = ppe_fill_info_blk(eth, entry, hw_path); |
| 1566 | |
| 1567 | if (IS_LAN(dev)) { |
| 1568 | if (IS_DSA_LAN(dev)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1569 | port_id = hnat_dsa_fill_stag(dev, &entry, hw_path, |
| 1570 | ntohs(eth->h_proto), |
| 1571 | mape); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1572 | |
| 1573 | if (IS_BOND_MODE) |
| 1574 | gmac = ((skb_hnat_entry(skb) >> 1) % hnat_priv->gmac_num) ? |
| 1575 | NR_GMAC2_PORT : NR_GMAC1_PORT; |
| 1576 | else |
| 1577 | gmac = NR_GMAC1_PORT; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1578 | } else if (IS_LAN2(dev)) { |
| 1579 | gmac = NR_GMAC3_PORT; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1580 | } else if (IS_WAN(dev)) { |
| 1581 | if (IS_DSA_WAN(dev)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1582 | port_id = hnat_dsa_fill_stag(dev,&entry, hw_path, |
| 1583 | ntohs(eth->h_proto), |
| 1584 | mape); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1585 | if (mape_toggle && mape == 1) { |
| 1586 | gmac = NR_PDMA_PORT; |
| 1587 | /* Set act_dp = wan_dev */ |
| 1588 | entry.ipv4_hnapt.act_dp = dev->ifindex; |
| 1589 | } else { |
| 1590 | gmac = (IS_GMAC1_MODE) ? NR_GMAC1_PORT : NR_GMAC2_PORT; |
| 1591 | } |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1592 | } 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] | 1593 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb) || FROM_WED(skb))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1594 | if (!hnat_priv->data->whnat && IS_GMAC1_MODE) { |
| 1595 | entry.bfib1.vpm = 1; |
| 1596 | entry.bfib1.vlan_layer = 1; |
| 1597 | |
| 1598 | if (FROM_GE_LAN(skb)) |
| 1599 | entry.ipv4_hnapt.vlan1 = 1; |
| 1600 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1601 | entry.ipv4_hnapt.vlan1 = 2; |
| 1602 | } |
| 1603 | |
| 1604 | trace_printk("learn of lan or wan(iif=%x) --> %s(ext)\n", |
| 1605 | skb_hnat_iface(skb), dev->name); |
| 1606 | /* To CPU then stolen by pre-routing hant hook of LAN/WAN |
| 1607 | * Current setting is PDMA RX. |
| 1608 | */ |
| 1609 | gmac = NR_PDMA_PORT; |
| 1610 | if (IS_IPV4_GRP(foe)) |
| 1611 | entry.ipv4_hnapt.act_dp = dev->ifindex; |
| 1612 | else |
| 1613 | entry.ipv6_5t_route.act_dp = dev->ifindex; |
| 1614 | } else { |
| 1615 | printk_ratelimited(KERN_WARNING |
| 1616 | "Unknown case of dp, iif=%x --> %s\n", |
| 1617 | skb_hnat_iface(skb), dev->name); |
| 1618 | |
| 1619 | return 0; |
| 1620 | } |
| 1621 | |
developer | afff566 | 2022-06-29 10:09:56 +0800 | [diff] [blame] | 1622 | if (IS_HQOS_MODE || skb->mark >= MAX_PPPQ_PORT_NUM) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1623 | qid = skb->mark & (MTK_QDMA_TX_MASK); |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1624 | else if (IS_PPPQ_MODE && IS_PPPQ_PATH(dev, skb)) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1625 | qid = port_id & MTK_QDMA_TX_MASK; |
| 1626 | else |
| 1627 | qid = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1628 | |
| 1629 | if (IS_IPV4_GRP(foe)) { |
| 1630 | entry.ipv4_hnapt.iblk2.dp = gmac; |
| 1631 | entry.ipv4_hnapt.iblk2.port_mg = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1632 | (hnat_priv->data->version == MTK_HNAT_V1_1) ? 0x3f : 0; |
developer | 2494820 | 2021-11-24 17:38:27 +0800 | [diff] [blame] | 1633 | |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1634 | if (qos_toggle) { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1635 | if (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1636 | hnat_priv->data->version == MTK_HNAT_V3) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1637 | entry.ipv4_hnapt.iblk2.qid = qid & 0x7f; |
| 1638 | } else { |
| 1639 | /* qid[5:0]= port_mg[1:0]+ qid[3:0] */ |
| 1640 | entry.ipv4_hnapt.iblk2.qid = qid & 0xf; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1641 | if (hnat_priv->data->version != MTK_HNAT_V1_1) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1642 | entry.ipv4_hnapt.iblk2.port_mg |= |
| 1643 | ((qid >> 4) & 0x3); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1644 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1645 | if (((IS_EXT(dev) && (FROM_GE_LAN_GRP(skb) || |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1646 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) || |
| 1647 | ((mape_toggle && mape == 1) && !FROM_EXT(skb))) && |
| 1648 | (!whnat)) { |
| 1649 | entry.ipv4_hnapt.etype = htons(HQOS_MAGIC_TAG); |
| 1650 | entry.ipv4_hnapt.vlan1 = skb_hnat_entry(skb); |
| 1651 | entry.bfib1.vlan_layer = 1; |
| 1652 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1653 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1654 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1655 | if (FROM_EXT(skb) || skb_hnat_sport(skb) == NR_QDMA_PORT || |
| 1656 | (IS_PPPQ_MODE && !IS_DSA_LAN(dev) && !IS_DSA_WAN(dev))) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1657 | entry.ipv4_hnapt.iblk2.fqos = 0; |
| 1658 | else |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1659 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1660 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1661 | (IS_HQOS_DL_MODE && IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1662 | (IS_PPPQ_MODE && |
| 1663 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1664 | entry.ipv4_hnapt.tport_id = 1; |
| 1665 | else |
| 1666 | entry.ipv4_hnapt.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1667 | #else |
developer | 399ec07 | 2022-06-24 16:07:41 +0800 | [diff] [blame] | 1668 | entry.ipv4_hnapt.iblk2.fqos = |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1669 | (!IS_PPPQ_MODE || |
| 1670 | (IS_PPPQ_MODE && |
| 1671 | IS_PPPQ_PATH(dev, skb))); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1672 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1673 | } else { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1674 | entry.ipv4_hnapt.iblk2.fqos = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1675 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1676 | } else { |
| 1677 | entry.ipv6_5t_route.iblk2.dp = gmac; |
| 1678 | entry.ipv6_5t_route.iblk2.port_mg = |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1679 | (hnat_priv->data->version == MTK_HNAT_V1_1) ? 0x3f : 0; |
developer | 2494820 | 2021-11-24 17:38:27 +0800 | [diff] [blame] | 1680 | |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1681 | if (qos_toggle) { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1682 | if (hnat_priv->data->version == MTK_HNAT_V2 || |
| 1683 | hnat_priv->data->version == MTK_HNAT_V3) { |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1684 | entry.ipv6_5t_route.iblk2.qid = qid & 0x7f; |
| 1685 | } else { |
| 1686 | /* qid[5:0]= port_mg[1:0]+ qid[3:0] */ |
| 1687 | entry.ipv6_5t_route.iblk2.qid = qid & 0xf; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1688 | if (hnat_priv->data->version != MTK_HNAT_V1_1) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1689 | entry.ipv6_5t_route.iblk2.port_mg |= |
| 1690 | ((qid >> 4) & 0x3); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1691 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1692 | if (IS_EXT(dev) && (FROM_GE_LAN_GRP(skb) || |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1693 | FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) && |
| 1694 | (!whnat)) { |
| 1695 | entry.ipv6_5t_route.etype = htons(HQOS_MAGIC_TAG); |
| 1696 | entry.ipv6_5t_route.vlan1 = skb_hnat_entry(skb); |
| 1697 | entry.bfib1.vlan_layer = 1; |
| 1698 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1699 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1700 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1701 | if (FROM_EXT(skb) || |
| 1702 | (IS_PPPQ_MODE && !IS_DSA_LAN(dev) && !IS_DSA_WAN(dev))) |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1703 | entry.ipv6_5t_route.iblk2.fqos = 0; |
| 1704 | else |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1705 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1706 | if ((IS_HQOS_UL_MODE && IS_WAN(dev)) || |
developer | 493adc3 | 2022-11-29 22:34:18 +0800 | [diff] [blame] | 1707 | (IS_HQOS_DL_MODE && IS_LAN_GRP(dev)) || |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1708 | (IS_PPPQ_MODE && |
| 1709 | IS_PPPQ_PATH(dev, skb))) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1710 | entry.ipv6_5t_route.tport_id = 1; |
| 1711 | else |
| 1712 | entry.ipv6_5t_route.tport_id = 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1713 | #else |
developer | 399ec07 | 2022-06-24 16:07:41 +0800 | [diff] [blame] | 1714 | entry.ipv6_5t_route.iblk2.fqos = |
developer | 934756a | 2022-11-18 14:51:34 +0800 | [diff] [blame] | 1715 | (!IS_PPPQ_MODE || |
| 1716 | (IS_PPPQ_MODE && |
| 1717 | IS_PPPQ_PATH(dev, skb))); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1718 | #endif |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1719 | } else { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1720 | entry.ipv6_5t_route.iblk2.fqos = 0; |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 1721 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1722 | } |
| 1723 | |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1724 | /* The INFO2.port_mg and 2nd VLAN ID fields of PPE entry are redefined |
| 1725 | * by Wi-Fi whnat engine. These data and INFO2.dp will be updated and |
| 1726 | * the entry is set to BIND state in mtk_sw_nat_hook_tx(). |
| 1727 | */ |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1728 | if (!whnat) { |
| 1729 | entry.bfib1.ttl = 1; |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1730 | entry.bfib1.state = BIND; |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1731 | } |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1732 | |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1733 | wmb(); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1734 | memcpy(foe, &entry, sizeof(entry)); |
| 1735 | /*reset statistic for this entry*/ |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 1736 | if (hnat_priv->data->per_flow_accounting && |
| 1737 | skb_hnat_entry(skb) < hnat_priv->foe_etry_num && |
| 1738 | skb_hnat_ppe(skb) < CFG_PPE_NUM) |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 1739 | memset(&hnat_priv->acct[skb_hnat_ppe(skb)][skb_hnat_entry(skb)], |
| 1740 | 0, sizeof(struct mib_entry)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1741 | |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1742 | skb_hnat_filled(skb) = HNAT_INFO_FILLED; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1743 | |
| 1744 | return 0; |
| 1745 | } |
| 1746 | |
| 1747 | int mtk_sw_nat_hook_tx(struct sk_buff *skb, int gmac_no) |
| 1748 | { |
| 1749 | struct foe_entry *entry; |
| 1750 | struct ethhdr *eth; |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1751 | struct hnat_bind_info_blk bfib1_tx; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1752 | |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1753 | if (skb_hnat_alg(skb) || !is_hnat_info_filled(skb) || |
| 1754 | !is_magic_tag_valid(skb) || !IS_SPACE_AVAILABLE_HEAD(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1755 | return NF_ACCEPT; |
| 1756 | |
| 1757 | trace_printk( |
| 1758 | "[%s]entry=%x reason=%x gmac_no=%x wdmaid=%x rxid=%x wcid=%x bssid=%x\n", |
| 1759 | __func__, skb_hnat_entry(skb), skb_hnat_reason(skb), gmac_no, |
| 1760 | skb_hnat_wdma_id(skb), skb_hnat_bss_id(skb), |
| 1761 | skb_hnat_wc_id(skb), skb_hnat_rx_id(skb)); |
| 1762 | |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1763 | if ((gmac_no != NR_WDMA0_PORT) && (gmac_no != NR_WDMA1_PORT) && |
| 1764 | (gmac_no != NR_WHNAT_WDMA_PORT)) |
| 1765 | return NF_ACCEPT; |
| 1766 | |
developer | c0419aa | 2022-12-07 15:56:36 +0800 | [diff] [blame] | 1767 | if (unlikely(!skb_mac_header_was_set(skb))) |
| 1768 | return NF_ACCEPT; |
| 1769 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1770 | if (!skb_hnat_is_hashed(skb)) |
| 1771 | return NF_ACCEPT; |
| 1772 | |
developer | 955a6f6 | 2021-07-26 10:54:39 +0800 | [diff] [blame] | 1773 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 1774 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 1775 | return NF_ACCEPT; |
| 1776 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 1777 | 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] | 1778 | if (entry_hnat_is_bound(entry)) |
| 1779 | return NF_ACCEPT; |
| 1780 | |
| 1781 | if (skb_hnat_reason(skb) != HIT_UNBIND_RATE_REACH) |
| 1782 | return NF_ACCEPT; |
| 1783 | |
| 1784 | eth = eth_hdr(skb); |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1785 | memcpy(&bfib1_tx, &entry->bfib1, sizeof(entry->bfib1)); |
developer | 8116b0a | 2021-08-23 18:07:20 +0800 | [diff] [blame] | 1786 | |
| 1787 | /*not bind multicast if PPE mcast not enable*/ |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1788 | if (!hnat_priv->data->mcast) { |
| 1789 | if (is_multicast_ether_addr(eth->h_dest)) |
| 1790 | return NF_ACCEPT; |
| 1791 | |
| 1792 | if (IS_IPV4_GRP(entry)) |
| 1793 | entry->ipv4_hnapt.iblk2.mcast = 0; |
| 1794 | else |
| 1795 | entry->ipv6_5t_route.iblk2.mcast = 0; |
| 1796 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1797 | |
| 1798 | /* Some mt_wifi virtual interfaces, such as apcli, |
| 1799 | * will change the smac for specail purpose. |
| 1800 | */ |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1801 | switch ((int)bfib1_tx.pkt_type) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1802 | case IPV4_HNAPT: |
| 1803 | case IPV4_HNAT: |
| 1804 | entry->ipv4_hnapt.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1805 | entry->ipv4_hnapt.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1806 | break; |
| 1807 | case IPV4_DSLITE: |
| 1808 | case IPV4_MAP_E: |
| 1809 | case IPV6_6RD: |
| 1810 | case IPV6_5T_ROUTE: |
| 1811 | case IPV6_3T_ROUTE: |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1812 | case IPV6_HNAPT: |
| 1813 | case IPV6_HNAT: |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1814 | entry->ipv6_5t_route.smac_hi = swab32(*((u32 *)eth->h_source)); |
| 1815 | entry->ipv6_5t_route.smac_lo = swab16(*((u16 *)ð->h_source[4])); |
| 1816 | break; |
| 1817 | } |
| 1818 | |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1819 | if (skb->vlan_tci) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1820 | bfib1_tx.vlan_layer = 1; |
| 1821 | bfib1_tx.vpm = 1; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1822 | if (IS_IPV4_GRP(entry)) { |
| 1823 | entry->ipv4_hnapt.etype = htons(ETH_P_8021Q); |
developer | 00a0737 | 2022-03-11 16:04:34 +0800 | [diff] [blame] | 1824 | entry->ipv4_hnapt.vlan1 = skb->vlan_tci; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1825 | } else if (IS_IPV6_GRP(entry)) { |
| 1826 | entry->ipv6_5t_route.etype = htons(ETH_P_8021Q); |
developer | 00a0737 | 2022-03-11 16:04:34 +0800 | [diff] [blame] | 1827 | entry->ipv6_5t_route.vlan1 = skb->vlan_tci; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1828 | } |
| 1829 | } else { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1830 | bfib1_tx.vpm = 0; |
| 1831 | bfib1_tx.vlan_layer = 0; |
developer | 0ff7688 | 2021-10-26 10:54:13 +0800 | [diff] [blame] | 1832 | } |
developer | 60e6096 | 2021-06-15 21:05:07 +0800 | [diff] [blame] | 1833 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1834 | /* MT7622 wifi hw_nat not support QoS */ |
| 1835 | if (IS_IPV4_GRP(entry)) { |
| 1836 | entry->ipv4_hnapt.iblk2.fqos = 0; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1837 | if ((hnat_priv->data->version == MTK_HNAT_V1_2 && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1838 | gmac_no == NR_WHNAT_WDMA_PORT) || |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1839 | ((hnat_priv->data->version == MTK_HNAT_V2 || |
| 1840 | hnat_priv->data->version == MTK_HNAT_V3) && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1841 | (gmac_no == NR_WDMA0_PORT || gmac_no == NR_WDMA1_PORT))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1842 | entry->ipv4_hnapt.winfo.bssid = skb_hnat_bss_id(skb); |
| 1843 | entry->ipv4_hnapt.winfo.wcid = skb_hnat_wc_id(skb); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1844 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1845 | entry->ipv4_hnapt.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1846 | entry->ipv4_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1847 | entry->ipv4_hnapt.iblk2.winfoi = 1; |
| 1848 | entry->ipv4_hnapt.winfo_pao.usr_info = |
| 1849 | skb_hnat_usr_info(skb); |
| 1850 | entry->ipv4_hnapt.winfo_pao.tid = skb_hnat_tid(skb); |
| 1851 | entry->ipv4_hnapt.winfo_pao.is_fixedrate = |
| 1852 | skb_hnat_is_fixedrate(skb); |
| 1853 | entry->ipv4_hnapt.winfo_pao.is_prior = |
| 1854 | skb_hnat_is_prior(skb); |
| 1855 | entry->ipv4_hnapt.winfo_pao.is_sp = skb_hnat_is_sp(skb); |
| 1856 | entry->ipv4_hnapt.winfo_pao.hf = skb_hnat_hf(skb); |
| 1857 | entry->ipv4_hnapt.winfo_pao.amsdu = skb_hnat_amsdu(skb); |
| 1858 | #elif defined(CONFIG_MEDIATEK_NETSYS_V2) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1859 | entry->ipv4_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1860 | entry->ipv4_hnapt.iblk2.winfoi = 1; |
| 1861 | #else |
| 1862 | entry->ipv4_hnapt.winfo.rxid = skb_hnat_rx_id(skb); |
| 1863 | entry->ipv4_hnapt.iblk2w.winfoi = 1; |
| 1864 | entry->ipv4_hnapt.iblk2w.wdmaid = skb_hnat_wdma_id(skb); |
| 1865 | #endif |
| 1866 | } else { |
| 1867 | if (IS_GMAC1_MODE && !hnat_dsa_is_enable(hnat_priv)) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1868 | bfib1_tx.vpm = 1; |
| 1869 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1870 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1871 | if (FROM_GE_LAN_GRP(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1872 | entry->ipv4_hnapt.vlan1 = 1; |
| 1873 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1874 | entry->ipv4_hnapt.vlan1 = 2; |
| 1875 | } |
| 1876 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1877 | if (IS_HQOS_MODE && |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1878 | (FROM_GE_LAN_GRP(skb) || FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1879 | bfib1_tx.vpm = 0; |
| 1880 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1881 | entry->ipv4_hnapt.etype = htons(HQOS_MAGIC_TAG); |
| 1882 | entry->ipv4_hnapt.vlan1 = skb_hnat_entry(skb); |
| 1883 | entry->ipv4_hnapt.iblk2.fqos = 1; |
| 1884 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1885 | } |
| 1886 | entry->ipv4_hnapt.iblk2.dp = gmac_no; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1887 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
| 1888 | } else if (IS_IPV6_HNAPT(entry) || IS_IPV6_HNAT(entry)) { |
| 1889 | entry->ipv6_hnapt.iblk2.dp = gmac_no; |
| 1890 | entry->ipv6_hnapt.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1891 | entry->ipv6_hnapt.iblk2.winfoi = 1; |
| 1892 | |
| 1893 | entry->ipv6_hnapt.winfo.bssid = skb_hnat_bss_id(skb); |
| 1894 | entry->ipv6_hnapt.winfo.wcid = skb_hnat_wc_id(skb); |
| 1895 | entry->ipv6_hnapt.winfo_pao.usr_info = skb_hnat_usr_info(skb); |
| 1896 | entry->ipv6_hnapt.winfo_pao.tid = skb_hnat_tid(skb); |
| 1897 | entry->ipv6_hnapt.winfo_pao.is_fixedrate = |
| 1898 | skb_hnat_is_fixedrate(skb); |
| 1899 | entry->ipv6_hnapt.winfo_pao.is_prior = skb_hnat_is_prior(skb); |
| 1900 | entry->ipv6_hnapt.winfo_pao.is_sp = skb_hnat_is_sp(skb); |
| 1901 | entry->ipv6_hnapt.winfo_pao.hf = skb_hnat_hf(skb); |
| 1902 | entry->ipv6_hnapt.winfo_pao.amsdu = skb_hnat_amsdu(skb); |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1903 | entry->ipv6_hnapt.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | 5ffc5f1 | 2022-10-25 18:51:46 +0800 | [diff] [blame] | 1904 | #endif |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1905 | } else { |
| 1906 | entry->ipv6_5t_route.iblk2.fqos = 0; |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1907 | if ((hnat_priv->data->version == MTK_HNAT_V1_2 && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1908 | gmac_no == NR_WHNAT_WDMA_PORT) || |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 1909 | ((hnat_priv->data->version == MTK_HNAT_V2 || |
| 1910 | hnat_priv->data->version == MTK_HNAT_V3) && |
developer | e567ad3 | 2021-05-25 17:16:17 +0800 | [diff] [blame] | 1911 | (gmac_no == NR_WDMA0_PORT || gmac_no == NR_WDMA1_PORT))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1912 | entry->ipv6_5t_route.winfo.bssid = skb_hnat_bss_id(skb); |
| 1913 | entry->ipv6_5t_route.winfo.wcid = skb_hnat_wc_id(skb); |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1914 | #if defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | 47545a3 | 2022-11-15 16:06:58 +0800 | [diff] [blame] | 1915 | entry->ipv6_5t_route.tport_id = IS_HQOS_DL_MODE ? 1 : 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1916 | entry->ipv6_5t_route.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1917 | entry->ipv6_5t_route.iblk2.winfoi = 1; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1918 | entry->ipv6_5t_route.winfo_pao.usr_info = |
| 1919 | skb_hnat_usr_info(skb); |
| 1920 | entry->ipv6_5t_route.winfo_pao.tid = |
| 1921 | skb_hnat_tid(skb); |
| 1922 | entry->ipv6_5t_route.winfo_pao.is_fixedrate = |
| 1923 | skb_hnat_is_fixedrate(skb); |
| 1924 | entry->ipv6_5t_route.winfo_pao.is_prior = |
| 1925 | skb_hnat_is_prior(skb); |
| 1926 | entry->ipv6_5t_route.winfo_pao.is_sp = |
| 1927 | skb_hnat_is_sp(skb); |
| 1928 | entry->ipv6_5t_route.winfo_pao.hf = |
| 1929 | skb_hnat_hf(skb); |
| 1930 | entry->ipv6_5t_route.winfo_pao.amsdu = |
| 1931 | skb_hnat_amsdu(skb); |
| 1932 | #elif defined(CONFIG_MEDIATEK_NETSYS_V2) |
| 1933 | entry->ipv6_5t_route.iblk2.rxid = skb_hnat_rx_id(skb); |
| 1934 | entry->ipv6_5t_route.iblk2.winfoi = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1935 | #else |
| 1936 | entry->ipv6_5t_route.winfo.rxid = skb_hnat_rx_id(skb); |
| 1937 | entry->ipv6_5t_route.iblk2w.winfoi = 1; |
| 1938 | entry->ipv6_5t_route.iblk2w.wdmaid = skb_hnat_wdma_id(skb); |
| 1939 | #endif |
| 1940 | } else { |
| 1941 | if (IS_GMAC1_MODE && !hnat_dsa_is_enable(hnat_priv)) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1942 | bfib1_tx.vpm = 1; |
| 1943 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1944 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1945 | if (FROM_GE_LAN_GRP(skb)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1946 | entry->ipv6_5t_route.vlan1 = 1; |
| 1947 | else if (FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb)) |
| 1948 | entry->ipv6_5t_route.vlan1 = 2; |
| 1949 | } |
| 1950 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 1951 | if (IS_HQOS_MODE && |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 1952 | (FROM_GE_LAN_GRP(skb) || FROM_GE_WAN(skb) || FROM_GE_VIRTUAL(skb))) { |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1953 | bfib1_tx.vpm = 0; |
| 1954 | bfib1_tx.vlan_layer = 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1955 | entry->ipv6_5t_route.etype = htons(HQOS_MAGIC_TAG); |
| 1956 | entry->ipv6_5t_route.vlan1 = skb_hnat_entry(skb); |
| 1957 | entry->ipv6_5t_route.iblk2.fqos = 1; |
| 1958 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1959 | } |
| 1960 | entry->ipv6_5t_route.iblk2.dp = gmac_no; |
| 1961 | } |
| 1962 | |
developer | 7b36dca | 2022-05-19 18:29:10 +0800 | [diff] [blame] | 1963 | bfib1_tx.ttl = 1; |
developer | bc552cc | 2022-03-15 16:19:27 +0800 | [diff] [blame] | 1964 | bfib1_tx.state = BIND; |
| 1965 | wmb(); |
| 1966 | memcpy(&entry->bfib1, &bfib1_tx, sizeof(bfib1_tx)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1967 | |
| 1968 | return NF_ACCEPT; |
| 1969 | } |
| 1970 | |
| 1971 | int mtk_sw_nat_hook_rx(struct sk_buff *skb) |
| 1972 | { |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1973 | if (!IS_SPACE_AVAILABLE_HEAD(skb) || !FROM_WED(skb)) { |
| 1974 | skb_hnat_magic_tag(skb) = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1975 | return NF_ACCEPT; |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 1976 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1977 | |
| 1978 | skb_hnat_alg(skb) = 0; |
developer | fdfe157 | 2021-09-13 16:56:33 +0800 | [diff] [blame] | 1979 | skb_hnat_filled(skb) = 0; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1980 | skb_hnat_magic_tag(skb) = HNAT_MAGIC_TAG; |
| 1981 | |
| 1982 | if (skb_hnat_iface(skb) == FOE_MAGIC_WED0) |
| 1983 | skb_hnat_sport(skb) = NR_WDMA0_PORT; |
| 1984 | else if (skb_hnat_iface(skb) == FOE_MAGIC_WED1) |
| 1985 | skb_hnat_sport(skb) = NR_WDMA1_PORT; |
| 1986 | |
| 1987 | return NF_ACCEPT; |
| 1988 | } |
| 1989 | |
| 1990 | void mtk_ppe_dev_register_hook(struct net_device *dev) |
| 1991 | { |
| 1992 | int i, number = 0; |
| 1993 | struct extdev_entry *ext_entry; |
| 1994 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1995 | for (i = 1; i < MAX_IF_NUM; i++) { |
| 1996 | if (hnat_priv->wifi_hook_if[i] == dev) { |
| 1997 | pr_info("%s : %s has been registered in wifi_hook_if table[%d]\n", |
| 1998 | __func__, dev->name, i); |
| 1999 | return; |
| 2000 | } |
developer | a7e6c24 | 2022-12-05 13:52:40 +0800 | [diff] [blame] | 2001 | } |
| 2002 | |
| 2003 | for (i = 1; i < MAX_IF_NUM; i++) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2004 | if (!hnat_priv->wifi_hook_if[i]) { |
| 2005 | if (find_extif_from_devname(dev->name)) { |
| 2006 | extif_set_dev(dev); |
| 2007 | goto add_wifi_hook_if; |
| 2008 | } |
| 2009 | |
| 2010 | number = get_ext_device_number(); |
| 2011 | if (number >= MAX_EXT_DEVS) { |
| 2012 | pr_info("%s : extdev array is full. %s is not registered\n", |
| 2013 | __func__, dev->name); |
| 2014 | return; |
| 2015 | } |
| 2016 | |
| 2017 | ext_entry = kzalloc(sizeof(*ext_entry), GFP_KERNEL); |
| 2018 | if (!ext_entry) |
| 2019 | return; |
| 2020 | |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2021 | strncpy(ext_entry->name, dev->name, IFNAMSIZ - 1); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2022 | dev_hold(dev); |
| 2023 | ext_entry->dev = dev; |
| 2024 | ext_if_add(ext_entry); |
| 2025 | |
| 2026 | add_wifi_hook_if: |
| 2027 | dev_hold(dev); |
| 2028 | hnat_priv->wifi_hook_if[i] = dev; |
| 2029 | |
| 2030 | break; |
| 2031 | } |
| 2032 | } |
| 2033 | pr_info("%s : ineterface %s register (%d)\n", __func__, dev->name, i); |
| 2034 | } |
| 2035 | |
| 2036 | void mtk_ppe_dev_unregister_hook(struct net_device *dev) |
| 2037 | { |
| 2038 | int i; |
| 2039 | |
| 2040 | for (i = 1; i < MAX_IF_NUM; i++) { |
| 2041 | if (hnat_priv->wifi_hook_if[i] == dev) { |
| 2042 | hnat_priv->wifi_hook_if[i] = NULL; |
| 2043 | dev_put(dev); |
| 2044 | |
| 2045 | break; |
| 2046 | } |
| 2047 | } |
| 2048 | |
| 2049 | extif_put_dev(dev); |
| 2050 | pr_info("%s : ineterface %s set null (%d)\n", __func__, dev->name, i); |
| 2051 | } |
| 2052 | |
| 2053 | static unsigned int mtk_hnat_accel_type(struct sk_buff *skb) |
| 2054 | { |
| 2055 | struct dst_entry *dst; |
| 2056 | struct nf_conn *ct; |
| 2057 | enum ip_conntrack_info ctinfo; |
| 2058 | const struct nf_conn_help *help; |
| 2059 | |
| 2060 | /* Do not accelerate 1st round of xfrm flow, and 2nd round of xfrm flow |
| 2061 | * is from local_out which is also filtered in sanity check. |
| 2062 | */ |
| 2063 | dst = skb_dst(skb); |
| 2064 | if (dst && dst_xfrm(dst)) |
| 2065 | return 0; |
| 2066 | |
| 2067 | ct = nf_ct_get(skb, &ctinfo); |
| 2068 | if (!ct) |
| 2069 | return 1; |
| 2070 | |
| 2071 | /* rcu_read_lock()ed by nf_hook_slow */ |
| 2072 | help = nfct_help(ct); |
| 2073 | if (help && rcu_dereference(help->helper)) |
| 2074 | return 0; |
| 2075 | |
| 2076 | return 1; |
| 2077 | } |
| 2078 | |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2079 | static void mtk_hnat_dscp_update(struct sk_buff *skb, struct foe_entry *entry) |
| 2080 | { |
| 2081 | struct iphdr *iph; |
| 2082 | struct ethhdr *eth; |
| 2083 | struct ipv6hdr *ip6h; |
| 2084 | bool flag = false; |
| 2085 | |
| 2086 | eth = eth_hdr(skb); |
| 2087 | switch (ntohs(eth->h_proto)) { |
| 2088 | case ETH_P_IP: |
| 2089 | iph = ip_hdr(skb); |
developer | 001e7be | 2021-12-09 15:00:27 +0800 | [diff] [blame] | 2090 | if (IS_IPV4_GRP(entry) && entry->ipv4_hnapt.iblk2.dscp != iph->tos) |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2091 | flag = true; |
| 2092 | break; |
| 2093 | case ETH_P_IPV6: |
| 2094 | ip6h = ipv6_hdr(skb); |
developer | 001e7be | 2021-12-09 15:00:27 +0800 | [diff] [blame] | 2095 | if ((IS_IPV6_3T_ROUTE(entry) || IS_IPV6_5T_ROUTE(entry)) && |
| 2096 | (entry->ipv6_5t_route.iblk2.dscp != |
| 2097 | (ip6h->priority << 4 | (ip6h->flow_lbl[0] >> 4)))) |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2098 | flag = true; |
| 2099 | break; |
| 2100 | default: |
| 2101 | return; |
| 2102 | } |
| 2103 | |
| 2104 | if (flag) { |
developer | 1080dd8 | 2022-03-07 19:31:04 +0800 | [diff] [blame] | 2105 | if (debug_level >= 2) |
| 2106 | pr_info("Delete entry idx=%d.\n", skb_hnat_entry(skb)); |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2107 | memset(entry, 0, sizeof(struct foe_entry)); |
| 2108 | hnat_cache_ebl(1); |
| 2109 | } |
| 2110 | } |
| 2111 | |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2112 | static void mtk_hnat_nf_update(struct sk_buff *skb) |
| 2113 | { |
| 2114 | struct nf_conn *ct; |
| 2115 | struct nf_conn_acct *acct; |
| 2116 | struct nf_conn_counter *counter; |
| 2117 | enum ip_conntrack_info ctinfo; |
| 2118 | struct hnat_accounting diff; |
| 2119 | |
| 2120 | ct = nf_ct_get(skb, &ctinfo); |
| 2121 | if (ct) { |
| 2122 | if (!hnat_get_count(hnat_priv, skb_hnat_ppe(skb), skb_hnat_entry(skb), &diff)) |
| 2123 | return; |
| 2124 | |
| 2125 | acct = nf_conn_acct_find(ct); |
| 2126 | if (acct) { |
| 2127 | counter = acct->counter; |
| 2128 | atomic64_add(diff.packets, &counter[CTINFO2DIR(ctinfo)].packets); |
| 2129 | atomic64_add(diff.bytes, &counter[CTINFO2DIR(ctinfo)].bytes); |
| 2130 | } |
| 2131 | } |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 2132 | } |
| 2133 | |
| 2134 | int mtk_464xlat_fill_mac(struct foe_entry *entry, struct sk_buff *skb, |
| 2135 | const struct net_device *out, bool l2w) |
| 2136 | { |
| 2137 | const struct in6_addr *ipv6_nexthop; |
| 2138 | struct dst_entry *dst = skb_dst(skb); |
| 2139 | struct neighbour *neigh = NULL; |
| 2140 | struct rtable *rt = (struct rtable *)dst; |
| 2141 | u32 nexthop; |
| 2142 | |
| 2143 | rcu_read_lock_bh(); |
| 2144 | if (l2w) { |
| 2145 | ipv6_nexthop = rt6_nexthop((struct rt6_info *)dst, |
| 2146 | &ipv6_hdr(skb)->daddr); |
| 2147 | neigh = __ipv6_neigh_lookup_noref(dst->dev, ipv6_nexthop); |
| 2148 | if (unlikely(!neigh)) { |
| 2149 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI6)\n", |
| 2150 | __func__, &ipv6_hdr(skb)->daddr); |
| 2151 | rcu_read_unlock_bh(); |
| 2152 | return -1; |
| 2153 | } |
| 2154 | } else { |
| 2155 | nexthop = (__force u32)rt_nexthop(rt, ip_hdr(skb)->daddr); |
| 2156 | neigh = __ipv4_neigh_lookup_noref(dst->dev, nexthop); |
| 2157 | if (unlikely(!neigh)) { |
| 2158 | dev_notice(hnat_priv->dev, "%s:No neigh (daddr=%pI4)\n", |
| 2159 | __func__, &ip_hdr(skb)->daddr); |
| 2160 | rcu_read_unlock_bh(); |
| 2161 | return -1; |
| 2162 | } |
| 2163 | } |
| 2164 | rcu_read_unlock_bh(); |
| 2165 | |
| 2166 | entry->ipv4_dslite.dmac_hi = swab32(*((u32 *)neigh->ha)); |
| 2167 | entry->ipv4_dslite.dmac_lo = swab16(*((u16 *)&neigh->ha[4])); |
| 2168 | entry->ipv4_dslite.smac_hi = swab32(*((u32 *)out->dev_addr)); |
| 2169 | entry->ipv4_dslite.smac_lo = swab16(*((u16 *)&out->dev_addr[4])); |
| 2170 | |
| 2171 | return 0; |
| 2172 | } |
| 2173 | |
| 2174 | int mtk_464xlat_get_hash(struct sk_buff *skb, u32 *hash, bool l2w) |
| 2175 | { |
| 2176 | struct in6_addr addr_v6, prefix; |
| 2177 | struct ipv6hdr *ip6h; |
| 2178 | struct iphdr *iph; |
| 2179 | struct tcpudphdr *pptr, _ports; |
| 2180 | struct foe_entry tmp; |
| 2181 | u32 addr, protoff; |
| 2182 | |
| 2183 | if (l2w) { |
| 2184 | ip6h = ipv6_hdr(skb); |
| 2185 | if (mtk_ppe_get_xlat_v4_by_v6(&ip6h->daddr, &addr)) |
| 2186 | return -1; |
| 2187 | protoff = IPV6_HDR_LEN; |
| 2188 | |
| 2189 | tmp.bfib1.pkt_type = IPV4_HNAPT; |
| 2190 | tmp.ipv4_hnapt.sip = ntohl(ip6h->saddr.s6_addr32[3]); |
| 2191 | tmp.ipv4_hnapt.dip = ntohl(addr); |
| 2192 | } else { |
| 2193 | iph = ip_hdr(skb); |
| 2194 | if (mtk_ppe_get_xlat_v6_by_v4(&iph->saddr, &addr_v6, &prefix)) |
| 2195 | return -1; |
| 2196 | |
| 2197 | protoff = iph->ihl * 4; |
| 2198 | |
| 2199 | tmp.bfib1.pkt_type = IPV6_5T_ROUTE; |
| 2200 | tmp.ipv6_5t_route.ipv6_sip0 = ntohl(addr_v6.s6_addr32[0]); |
| 2201 | tmp.ipv6_5t_route.ipv6_sip1 = ntohl(addr_v6.s6_addr32[1]); |
| 2202 | tmp.ipv6_5t_route.ipv6_sip2 = ntohl(addr_v6.s6_addr32[2]); |
| 2203 | tmp.ipv6_5t_route.ipv6_sip3 = ntohl(addr_v6.s6_addr32[3]); |
| 2204 | tmp.ipv6_5t_route.ipv6_dip0 = ntohl(prefix.s6_addr32[0]); |
| 2205 | tmp.ipv6_5t_route.ipv6_dip1 = ntohl(prefix.s6_addr32[1]); |
| 2206 | tmp.ipv6_5t_route.ipv6_dip2 = ntohl(prefix.s6_addr32[2]); |
| 2207 | tmp.ipv6_5t_route.ipv6_dip3 = ntohl(iph->daddr); |
| 2208 | } |
| 2209 | |
| 2210 | pptr = skb_header_pointer(skb, protoff, |
| 2211 | sizeof(_ports), &_ports); |
| 2212 | if (unlikely(!pptr)) |
| 2213 | return -1; |
| 2214 | |
| 2215 | if (l2w) { |
| 2216 | tmp.ipv4_hnapt.sport = ntohs(pptr->src); |
| 2217 | tmp.ipv4_hnapt.dport = ntohs(pptr->dst); |
| 2218 | } else { |
| 2219 | tmp.ipv6_5t_route.sport = ntohs(pptr->src); |
| 2220 | tmp.ipv6_5t_route.dport = ntohs(pptr->dst); |
| 2221 | } |
| 2222 | |
| 2223 | *hash = hnat_get_ppe_hash(&tmp); |
| 2224 | |
| 2225 | return 0; |
| 2226 | } |
| 2227 | |
| 2228 | void mtk_464xlat_fill_info1(struct foe_entry *entry, |
| 2229 | struct sk_buff *skb, bool l2w) |
| 2230 | { |
| 2231 | entry->bfib1.cah = 1; |
| 2232 | entry->bfib1.ttl = 1; |
| 2233 | entry->bfib1.state = BIND; |
| 2234 | entry->bfib1.time_stamp = readl(hnat_priv->fe_base + 0x0010) & (0xFF); |
| 2235 | if (l2w) { |
| 2236 | entry->bfib1.pkt_type = IPV4_DSLITE; |
| 2237 | entry->bfib1.udp = ipv6_hdr(skb)->nexthdr == |
| 2238 | IPPROTO_UDP ? 1 : 0; |
| 2239 | } else { |
| 2240 | entry->bfib1.pkt_type = IPV6_6RD; |
| 2241 | entry->bfib1.udp = ip_hdr(skb)->protocol == |
| 2242 | IPPROTO_UDP ? 1 : 0; |
| 2243 | } |
| 2244 | } |
| 2245 | |
| 2246 | void mtk_464xlat_fill_info2(struct foe_entry *entry, bool l2w) |
| 2247 | { |
| 2248 | entry->ipv4_dslite.iblk2.mibf = 1; |
| 2249 | entry->ipv4_dslite.iblk2.port_ag = 0xF; |
| 2250 | |
| 2251 | if (l2w) |
| 2252 | entry->ipv4_dslite.iblk2.dp = NR_GMAC2_PORT; |
| 2253 | else |
| 2254 | entry->ipv6_6rd.iblk2.dp = NR_GMAC1_PORT; |
| 2255 | } |
| 2256 | |
| 2257 | void mtk_464xlat_fill_ipv4(struct foe_entry *entry, struct sk_buff *skb, |
| 2258 | struct foe_entry *foe, bool l2w) |
| 2259 | { |
| 2260 | struct iphdr *iph; |
| 2261 | |
| 2262 | if (l2w) { |
| 2263 | entry->ipv4_dslite.sip = foe->ipv4_dslite.sip; |
| 2264 | entry->ipv4_dslite.dip = foe->ipv4_dslite.dip; |
| 2265 | entry->ipv4_dslite.sport = foe->ipv4_dslite.sport; |
| 2266 | entry->ipv4_dslite.dport = foe->ipv4_dslite.dport; |
| 2267 | } else { |
| 2268 | iph = ip_hdr(skb); |
| 2269 | entry->ipv6_6rd.tunnel_sipv4 = ntohl(iph->saddr); |
| 2270 | entry->ipv6_6rd.tunnel_dipv4 = ntohl(iph->daddr); |
| 2271 | entry->ipv6_6rd.sport = foe->ipv6_6rd.sport; |
| 2272 | entry->ipv6_6rd.dport = foe->ipv6_6rd.dport; |
| 2273 | entry->ipv6_6rd.hdr_chksum = ppe_get_chkbase(iph); |
| 2274 | entry->ipv6_6rd.ttl = iph->ttl; |
| 2275 | entry->ipv6_6rd.dscp = iph->tos; |
| 2276 | entry->ipv6_6rd.flag = (ntohs(iph->frag_off) >> 13); |
| 2277 | } |
| 2278 | } |
| 2279 | |
| 2280 | int mtk_464xlat_fill_ipv6(struct foe_entry *entry, struct sk_buff *skb, |
| 2281 | struct foe_entry *foe, bool l2w) |
| 2282 | { |
| 2283 | struct ipv6hdr *ip6h; |
| 2284 | struct in6_addr addr_v6, prefix; |
| 2285 | u32 addr; |
| 2286 | |
| 2287 | if (l2w) { |
| 2288 | ip6h = ipv6_hdr(skb); |
| 2289 | |
| 2290 | if (mtk_ppe_get_xlat_v4_by_v6(&ip6h->daddr, &addr)) |
| 2291 | return -1; |
| 2292 | |
| 2293 | if (mtk_ppe_get_xlat_v6_by_v4(&addr, &addr_v6, &prefix)) |
| 2294 | return -1; |
| 2295 | |
| 2296 | entry->ipv4_dslite.tunnel_sipv6_0 = |
| 2297 | ntohl(prefix.s6_addr32[0]); |
| 2298 | entry->ipv4_dslite.tunnel_sipv6_1 = |
| 2299 | ntohl(ip6h->saddr.s6_addr32[1]); |
| 2300 | entry->ipv4_dslite.tunnel_sipv6_2 = |
| 2301 | ntohl(ip6h->saddr.s6_addr32[2]); |
| 2302 | entry->ipv4_dslite.tunnel_sipv6_3 = |
| 2303 | ntohl(ip6h->saddr.s6_addr32[3]); |
| 2304 | entry->ipv4_dslite.tunnel_dipv6_0 = |
| 2305 | ntohl(ip6h->daddr.s6_addr32[0]); |
| 2306 | entry->ipv4_dslite.tunnel_dipv6_1 = |
| 2307 | ntohl(ip6h->daddr.s6_addr32[1]); |
| 2308 | entry->ipv4_dslite.tunnel_dipv6_2 = |
| 2309 | ntohl(ip6h->daddr.s6_addr32[2]); |
| 2310 | entry->ipv4_dslite.tunnel_dipv6_3 = |
| 2311 | ntohl(ip6h->daddr.s6_addr32[3]); |
| 2312 | |
| 2313 | ppe_fill_flow_lbl(entry, ip6h); |
| 2314 | entry->ipv4_dslite.priority = ip6h->priority; |
| 2315 | entry->ipv4_dslite.hop_limit = ip6h->hop_limit; |
| 2316 | |
| 2317 | } else { |
| 2318 | entry->ipv6_6rd.ipv6_sip0 = foe->ipv6_6rd.ipv6_sip0; |
| 2319 | entry->ipv6_6rd.ipv6_sip1 = foe->ipv6_6rd.ipv6_sip1; |
| 2320 | entry->ipv6_6rd.ipv6_sip2 = foe->ipv6_6rd.ipv6_sip2; |
| 2321 | entry->ipv6_6rd.ipv6_sip3 = foe->ipv6_6rd.ipv6_sip3; |
| 2322 | entry->ipv6_6rd.ipv6_dip0 = foe->ipv6_6rd.ipv6_dip0; |
| 2323 | entry->ipv6_6rd.ipv6_dip1 = foe->ipv6_6rd.ipv6_dip1; |
| 2324 | entry->ipv6_6rd.ipv6_dip2 = foe->ipv6_6rd.ipv6_dip2; |
| 2325 | entry->ipv6_6rd.ipv6_dip3 = foe->ipv6_6rd.ipv6_dip3; |
| 2326 | } |
| 2327 | |
| 2328 | return 0; |
| 2329 | } |
| 2330 | |
| 2331 | int mtk_464xlat_fill_l2(struct foe_entry *entry, struct sk_buff *skb, |
| 2332 | const struct net_device *dev, bool l2w) |
| 2333 | { |
| 2334 | const unsigned int *port_reg; |
| 2335 | int port_index; |
| 2336 | u16 sp_tag; |
| 2337 | |
| 2338 | if (l2w) |
| 2339 | entry->ipv4_dslite.etype = ETH_P_IP; |
| 2340 | else { |
| 2341 | if (IS_DSA_LAN(dev)) { |
| 2342 | port_reg = of_get_property(dev->dev.of_node, |
| 2343 | "reg", NULL); |
| 2344 | if (unlikely(!port_reg)) |
| 2345 | return -1; |
| 2346 | |
| 2347 | port_index = be32_to_cpup(port_reg); |
| 2348 | sp_tag = BIT(port_index); |
| 2349 | |
| 2350 | entry->bfib1.vlan_layer = 1; |
| 2351 | entry->bfib1.vpm = 0; |
| 2352 | entry->ipv6_6rd.etype = sp_tag; |
| 2353 | } else |
| 2354 | entry->ipv6_6rd.etype = ETH_P_IPV6; |
| 2355 | } |
| 2356 | |
| 2357 | if (mtk_464xlat_fill_mac(entry, skb, dev, l2w)) |
| 2358 | return -1; |
| 2359 | |
| 2360 | return 0; |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2361 | } |
| 2362 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 2363 | |
| 2364 | int mtk_464xlat_fill_l3(struct foe_entry *entry, struct sk_buff *skb, |
| 2365 | struct foe_entry *foe, bool l2w) |
| 2366 | { |
| 2367 | mtk_464xlat_fill_ipv4(entry, skb, foe, l2w); |
| 2368 | |
| 2369 | if (mtk_464xlat_fill_ipv6(entry, skb, foe, l2w)) |
| 2370 | return -1; |
| 2371 | |
| 2372 | return 0; |
| 2373 | } |
| 2374 | |
| 2375 | int mtk_464xlat_post_process(struct sk_buff *skb, const struct net_device *out) |
| 2376 | { |
| 2377 | struct foe_entry *foe, entry = {}; |
| 2378 | u32 hash; |
| 2379 | bool l2w; |
| 2380 | |
| 2381 | if (skb->protocol == htons(ETH_P_IPV6)) |
| 2382 | l2w = true; |
| 2383 | else if (skb->protocol == htons(ETH_P_IP)) |
| 2384 | l2w = false; |
| 2385 | else |
| 2386 | return -1; |
| 2387 | |
| 2388 | if (mtk_464xlat_get_hash(skb, &hash, l2w)) |
| 2389 | return -1; |
| 2390 | |
| 2391 | if (hash >= hnat_priv->foe_etry_num) |
| 2392 | return -1; |
| 2393 | |
| 2394 | if (headroom[hash].crsn != HIT_UNBIND_RATE_REACH) |
| 2395 | return -1; |
| 2396 | |
| 2397 | foe = &hnat_priv->foe_table_cpu[headroom_ppe(headroom[hash])][hash]; |
| 2398 | |
| 2399 | mtk_464xlat_fill_info1(&entry, skb, l2w); |
| 2400 | |
| 2401 | if (mtk_464xlat_fill_l3(&entry, skb, foe, l2w)) |
| 2402 | return -1; |
| 2403 | |
| 2404 | mtk_464xlat_fill_info2(&entry, l2w); |
| 2405 | |
| 2406 | if (mtk_464xlat_fill_l2(&entry, skb, out, l2w)) |
| 2407 | return -1; |
| 2408 | |
| 2409 | /* We must ensure all info has been updated before set to hw */ |
| 2410 | wmb(); |
| 2411 | memcpy(foe, &entry, sizeof(struct foe_entry)); |
| 2412 | |
| 2413 | return 0; |
| 2414 | } |
| 2415 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2416 | static unsigned int mtk_hnat_nf_post_routing( |
| 2417 | struct sk_buff *skb, const struct net_device *out, |
| 2418 | unsigned int (*fn)(struct sk_buff *, const struct net_device *, |
| 2419 | struct flow_offload_hw_path *), |
| 2420 | const char *func) |
| 2421 | { |
| 2422 | struct foe_entry *entry; |
| 2423 | struct flow_offload_hw_path hw_path = { .dev = (struct net_device*)out, |
developer | e576351 | 2021-05-21 01:04:58 +0800 | [diff] [blame] | 2424 | .virt_dev = (struct net_device*)out }; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2425 | const struct net_device *arp_dev = out; |
| 2426 | |
developer | e8b7dfa | 2023-04-20 10:16:44 +0800 | [diff] [blame^] | 2427 | if (xlat_toggle && !mtk_464xlat_post_process(skb, out)) |
| 2428 | return 0; |
| 2429 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2430 | if (skb_hnat_alg(skb) || unlikely(!is_magic_tag_valid(skb) || |
| 2431 | !IS_SPACE_AVAILABLE_HEAD(skb))) |
| 2432 | return 0; |
| 2433 | |
developer | c0419aa | 2022-12-07 15:56:36 +0800 | [diff] [blame] | 2434 | if (unlikely(!skb_mac_header_was_set(skb))) |
| 2435 | return 0; |
| 2436 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2437 | if (unlikely(!skb_hnat_is_hashed(skb))) |
| 2438 | return 0; |
| 2439 | |
| 2440 | if (out->netdev_ops->ndo_flow_offload_check) { |
developer | e576351 | 2021-05-21 01:04:58 +0800 | [diff] [blame] | 2441 | out->netdev_ops->ndo_flow_offload_check(&hw_path); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2442 | out = (IS_GMAC1_MODE) ? hw_path.virt_dev : hw_path.dev; |
| 2443 | } |
| 2444 | |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2445 | if (!IS_LAN_GRP(out) && !IS_WAN(out) && !IS_EXT(out)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2446 | return 0; |
| 2447 | |
| 2448 | trace_printk("[%s] case hit, %x-->%s, reason=%x\n", __func__, |
| 2449 | skb_hnat_iface(skb), out->name, skb_hnat_reason(skb)); |
| 2450 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2451 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2452 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2453 | return -1; |
| 2454 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2455 | 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] | 2456 | |
| 2457 | switch (skb_hnat_reason(skb)) { |
| 2458 | case HIT_UNBIND_RATE_REACH: |
| 2459 | if (entry_hnat_is_bound(entry)) |
| 2460 | break; |
| 2461 | |
| 2462 | if (fn && !mtk_hnat_accel_type(skb)) |
| 2463 | break; |
| 2464 | |
| 2465 | if (fn && fn(skb, arp_dev, &hw_path)) |
| 2466 | break; |
| 2467 | |
| 2468 | skb_to_hnat_info(skb, out, entry, &hw_path); |
| 2469 | break; |
| 2470 | case HIT_BIND_KEEPALIVE_DUP_OLD_HDR: |
developer | 30a4768 | 2021-11-02 17:06:14 +0800 | [diff] [blame] | 2471 | /* update hnat count to nf_conntrack by keepalive */ |
| 2472 | if (hnat_priv->data->per_flow_accounting && hnat_priv->nf_stat_en) |
| 2473 | mtk_hnat_nf_update(skb); |
| 2474 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2475 | if (fn && !mtk_hnat_accel_type(skb)) |
| 2476 | break; |
| 2477 | |
developer | 6f4a0c7 | 2021-10-19 10:04:22 +0800 | [diff] [blame] | 2478 | /* update dscp for qos */ |
| 2479 | mtk_hnat_dscp_update(skb, entry); |
| 2480 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2481 | /* update mcast timestamp*/ |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 2482 | if (hnat_priv->data->version == MTK_HNAT_V1_3 && |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2483 | hnat_priv->data->mcast && entry->bfib1.sta == 1) |
| 2484 | entry->ipv4_hnapt.m_timestamp = foe_timestamp(hnat_priv); |
| 2485 | |
| 2486 | if (entry_hnat_is_bound(entry)) { |
| 2487 | memset(skb_hnat_info(skb), 0, FOE_INFO_LEN); |
| 2488 | |
| 2489 | return -1; |
| 2490 | } |
| 2491 | break; |
| 2492 | case HIT_BIND_MULTICAST_TO_CPU: |
| 2493 | case HIT_BIND_MULTICAST_TO_GMAC_CPU: |
| 2494 | /*do not forward to gdma again,if ppe already done it*/ |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2495 | if (IS_LAN_GRP(out) || IS_WAN(out)) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2496 | return -1; |
| 2497 | break; |
| 2498 | } |
| 2499 | |
| 2500 | return 0; |
| 2501 | } |
| 2502 | |
| 2503 | static unsigned int |
| 2504 | mtk_hnat_ipv6_nf_local_out(void *priv, struct sk_buff *skb, |
| 2505 | const struct nf_hook_state *state) |
| 2506 | { |
| 2507 | struct foe_entry *entry; |
| 2508 | struct ipv6hdr *ip6h; |
| 2509 | struct iphdr _iphdr; |
| 2510 | const struct iphdr *iph; |
| 2511 | struct tcpudphdr _ports; |
| 2512 | const struct tcpudphdr *pptr; |
| 2513 | int udp = 0; |
| 2514 | |
| 2515 | if (unlikely(!skb_hnat_is_hashed(skb))) |
| 2516 | return NF_ACCEPT; |
| 2517 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2518 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2519 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2520 | return NF_ACCEPT; |
| 2521 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2522 | 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] | 2523 | if (skb_hnat_reason(skb) == HIT_UNBIND_RATE_REACH) { |
| 2524 | ip6h = ipv6_hdr(skb); |
| 2525 | if (ip6h->nexthdr == NEXTHDR_IPIP) { |
| 2526 | /* Map-E LAN->WAN: need to record orig info before fn. */ |
| 2527 | if (mape_toggle) { |
| 2528 | iph = skb_header_pointer(skb, IPV6_HDR_LEN, |
| 2529 | sizeof(_iphdr), &_iphdr); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2530 | if (unlikely(!iph)) |
| 2531 | return NF_ACCEPT; |
| 2532 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2533 | switch (iph->protocol) { |
| 2534 | case IPPROTO_UDP: |
| 2535 | udp = 1; |
| 2536 | case IPPROTO_TCP: |
| 2537 | break; |
| 2538 | |
| 2539 | default: |
| 2540 | return NF_ACCEPT; |
| 2541 | } |
| 2542 | |
| 2543 | pptr = skb_header_pointer(skb, IPV6_HDR_LEN + iph->ihl * 4, |
| 2544 | sizeof(_ports), &_ports); |
developer | 4c32b7a | 2021-11-13 16:46:43 +0800 | [diff] [blame] | 2545 | if (unlikely(!pptr)) |
| 2546 | return NF_ACCEPT; |
| 2547 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2548 | entry->bfib1.udp = udp; |
| 2549 | |
developer | 25fc8c0 | 2022-05-06 16:24:02 +0800 | [diff] [blame] | 2550 | /* Map-E LAN->WAN record inner IPv4 header info. */ |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2551 | #if defined(CONFIG_MEDIATEK_NETSYS_V2) || defined(CONFIG_MEDIATEK_NETSYS_V3) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2552 | entry->bfib1.pkt_type = IPV4_MAP_E; |
| 2553 | entry->ipv4_dslite.iblk2.dscp = iph->tos; |
developer | d35bbcc | 2022-09-28 22:46:01 +0800 | [diff] [blame] | 2554 | entry->ipv4_mape.new_sip = ntohl(iph->saddr); |
| 2555 | entry->ipv4_mape.new_dip = ntohl(iph->daddr); |
| 2556 | entry->ipv4_mape.new_sport = ntohs(pptr->src); |
| 2557 | entry->ipv4_mape.new_dport = ntohs(pptr->dst); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2558 | #else |
| 2559 | entry->ipv4_hnapt.iblk2.dscp = iph->tos; |
| 2560 | entry->ipv4_hnapt.new_sip = ntohl(iph->saddr); |
| 2561 | entry->ipv4_hnapt.new_dip = ntohl(iph->daddr); |
| 2562 | entry->ipv4_hnapt.new_sport = ntohs(pptr->src); |
| 2563 | entry->ipv4_hnapt.new_dport = ntohs(pptr->dst); |
| 2564 | #endif |
| 2565 | } else { |
| 2566 | entry->bfib1.pkt_type = IPV4_DSLITE; |
| 2567 | } |
| 2568 | } |
| 2569 | } |
| 2570 | return NF_ACCEPT; |
| 2571 | } |
| 2572 | |
| 2573 | static unsigned int |
| 2574 | mtk_hnat_ipv6_nf_post_routing(void *priv, struct sk_buff *skb, |
| 2575 | const struct nf_hook_state *state) |
| 2576 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2577 | if (!skb) |
| 2578 | goto drop; |
| 2579 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2580 | post_routing_print(skb, state->in, state->out, __func__); |
| 2581 | |
| 2582 | if (!mtk_hnat_nf_post_routing(skb, state->out, hnat_ipv6_get_nexthop, |
| 2583 | __func__)) |
| 2584 | return NF_ACCEPT; |
| 2585 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2586 | drop: |
| 2587 | if (skb) |
| 2588 | trace_printk( |
| 2589 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2590 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2591 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2592 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2593 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2594 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2595 | |
| 2596 | return NF_DROP; |
| 2597 | } |
| 2598 | |
| 2599 | static unsigned int |
| 2600 | mtk_hnat_ipv4_nf_post_routing(void *priv, struct sk_buff *skb, |
| 2601 | const struct nf_hook_state *state) |
| 2602 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2603 | if (!skb) |
| 2604 | goto drop; |
| 2605 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2606 | post_routing_print(skb, state->in, state->out, __func__); |
| 2607 | |
| 2608 | if (!mtk_hnat_nf_post_routing(skb, state->out, hnat_ipv4_get_nexthop, |
| 2609 | __func__)) |
| 2610 | return NF_ACCEPT; |
| 2611 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2612 | drop: |
| 2613 | if (skb) |
| 2614 | trace_printk( |
| 2615 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2616 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2617 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2618 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2619 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2620 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2621 | |
| 2622 | return NF_DROP; |
| 2623 | } |
| 2624 | |
| 2625 | static unsigned int |
| 2626 | mtk_pong_hqos_handler(void *priv, struct sk_buff *skb, |
| 2627 | const struct nf_hook_state *state) |
| 2628 | { |
developer | 659fdeb | 2022-12-01 23:03:07 +0800 | [diff] [blame] | 2629 | struct vlan_ethhdr *veth; |
| 2630 | |
| 2631 | if (!skb) |
| 2632 | goto drop; |
| 2633 | |
| 2634 | veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2635 | |
developer | 34028fb | 2022-01-11 13:51:29 +0800 | [diff] [blame] | 2636 | if (IS_HQOS_MODE && eth_hdr(skb)->h_proto == HQOS_MAGIC_TAG) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2637 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 2638 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 2639 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2640 | |
| 2641 | if (skb_hnat_iface(skb) == FOE_MAGIC_EXT) |
| 2642 | clr_from_extge(skb); |
| 2643 | |
| 2644 | /* packets from external devices -> xxx ,step 2, learning stage */ |
developer | af07fad | 2021-11-19 17:53:42 +0800 | [diff] [blame] | 2645 | if (do_ext2ge_fast_learn(state->in, skb) && (!qos_toggle || |
| 2646 | (qos_toggle && eth_hdr(skb)->h_proto != HQOS_MAGIC_TAG))) { |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2647 | if (!do_hnat_ext_to_ge2(skb, __func__)) |
| 2648 | return NF_STOLEN; |
| 2649 | goto drop; |
| 2650 | } |
| 2651 | |
| 2652 | /* packets form ge -> external device */ |
| 2653 | if (do_ge2ext_fast(state->in, skb)) { |
| 2654 | if (!do_hnat_ge_to_ext(skb, __func__)) |
| 2655 | return NF_STOLEN; |
| 2656 | goto drop; |
| 2657 | } |
| 2658 | |
| 2659 | return NF_ACCEPT; |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2660 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2661 | drop: |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2662 | if (skb) |
| 2663 | printk_ratelimited(KERN_WARNING |
| 2664 | "%s:drop (in_dev=%s, iif=0x%x, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2665 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2666 | __func__, state->in->name, skb_hnat_iface(skb), |
| 2667 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2668 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2669 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2670 | |
| 2671 | return NF_DROP; |
| 2672 | } |
| 2673 | |
| 2674 | static unsigned int |
| 2675 | mtk_hnat_br_nf_local_out(void *priv, struct sk_buff *skb, |
| 2676 | const struct nf_hook_state *state) |
| 2677 | { |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2678 | if (!skb) |
| 2679 | goto drop; |
| 2680 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2681 | post_routing_print(skb, state->in, state->out, __func__); |
| 2682 | |
| 2683 | if (!mtk_hnat_nf_post_routing(skb, state->out, 0, __func__)) |
| 2684 | return NF_ACCEPT; |
| 2685 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2686 | drop: |
| 2687 | if (skb) |
| 2688 | trace_printk( |
| 2689 | "%s:drop (iif=0x%x, out_dev=%s, CB2=0x%x, ppe_hash=0x%x,\n" |
| 2690 | "sport=0x%x, reason=0x%x, alg=0x%x)\n", |
| 2691 | __func__, skb_hnat_iface(skb), state->out->name, |
| 2692 | HNAT_SKB_CB2(skb)->magic, skb_hnat_entry(skb), |
| 2693 | skb_hnat_sport(skb), skb_hnat_reason(skb), |
| 2694 | skb_hnat_alg(skb)); |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2695 | |
| 2696 | return NF_DROP; |
| 2697 | } |
| 2698 | |
| 2699 | static unsigned int |
| 2700 | mtk_hnat_ipv4_nf_local_out(void *priv, struct sk_buff *skb, |
| 2701 | const struct nf_hook_state *state) |
| 2702 | { |
| 2703 | struct sk_buff *new_skb; |
| 2704 | struct foe_entry *entry; |
| 2705 | struct iphdr *iph; |
| 2706 | |
| 2707 | if (!skb_hnat_is_hashed(skb)) |
| 2708 | return NF_ACCEPT; |
| 2709 | |
developer | 577ad2f | 2022-11-28 10:33:36 +0800 | [diff] [blame] | 2710 | if (skb_hnat_entry(skb) >= hnat_priv->foe_etry_num || |
| 2711 | skb_hnat_ppe(skb) >= CFG_PPE_NUM) |
| 2712 | return NF_ACCEPT; |
| 2713 | |
developer | 471f656 | 2021-05-10 20:48:34 +0800 | [diff] [blame] | 2714 | 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] | 2715 | |
| 2716 | if (unlikely(skb_headroom(skb) < FOE_INFO_LEN)) { |
| 2717 | new_skb = skb_realloc_headroom(skb, FOE_INFO_LEN); |
| 2718 | if (!new_skb) { |
| 2719 | dev_info(hnat_priv->dev, "%s:drop\n", __func__); |
| 2720 | return NF_DROP; |
| 2721 | } |
| 2722 | dev_kfree_skb(skb); |
| 2723 | skb = new_skb; |
| 2724 | } |
| 2725 | |
| 2726 | /* Make the flow from local not be bound. */ |
| 2727 | iph = ip_hdr(skb); |
| 2728 | if (iph->protocol == IPPROTO_IPV6) { |
| 2729 | entry->udib1.pkt_type = IPV6_6RD; |
| 2730 | hnat_set_head_frags(state, skb, 0, hnat_set_alg); |
| 2731 | } else { |
| 2732 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 2733 | } |
| 2734 | |
| 2735 | return NF_ACCEPT; |
| 2736 | } |
| 2737 | |
| 2738 | static unsigned int mtk_hnat_br_nf_forward(void *priv, |
| 2739 | struct sk_buff *skb, |
| 2740 | const struct nf_hook_state *state) |
| 2741 | { |
developer | 4164cfe | 2022-12-01 11:27:41 +0800 | [diff] [blame] | 2742 | if ((hnat_priv->data->version == MTK_HNAT_V1_2) && |
developer | 99506e5 | 2021-06-30 22:03:02 +0800 | [diff] [blame] | 2743 | unlikely(IS_EXT(state->in) && IS_EXT(state->out))) |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2744 | hnat_set_head_frags(state, skb, 1, hnat_set_alg); |
| 2745 | |
| 2746 | return NF_ACCEPT; |
| 2747 | } |
| 2748 | |
| 2749 | static struct nf_hook_ops mtk_hnat_nf_ops[] __read_mostly = { |
| 2750 | { |
| 2751 | .hook = mtk_hnat_ipv4_nf_pre_routing, |
| 2752 | .pf = NFPROTO_IPV4, |
| 2753 | .hooknum = NF_INET_PRE_ROUTING, |
| 2754 | .priority = NF_IP_PRI_FIRST + 1, |
| 2755 | }, |
| 2756 | { |
| 2757 | .hook = mtk_hnat_ipv6_nf_pre_routing, |
| 2758 | .pf = NFPROTO_IPV6, |
| 2759 | .hooknum = NF_INET_PRE_ROUTING, |
| 2760 | .priority = NF_IP_PRI_FIRST + 1, |
| 2761 | }, |
| 2762 | { |
| 2763 | .hook = mtk_hnat_ipv6_nf_post_routing, |
| 2764 | .pf = NFPROTO_IPV6, |
| 2765 | .hooknum = NF_INET_POST_ROUTING, |
| 2766 | .priority = NF_IP_PRI_LAST, |
| 2767 | }, |
| 2768 | { |
| 2769 | .hook = mtk_hnat_ipv6_nf_local_out, |
| 2770 | .pf = NFPROTO_IPV6, |
| 2771 | .hooknum = NF_INET_LOCAL_OUT, |
| 2772 | .priority = NF_IP_PRI_LAST, |
| 2773 | }, |
| 2774 | { |
| 2775 | .hook = mtk_hnat_ipv4_nf_post_routing, |
| 2776 | .pf = NFPROTO_IPV4, |
| 2777 | .hooknum = NF_INET_POST_ROUTING, |
| 2778 | .priority = NF_IP_PRI_LAST, |
| 2779 | }, |
| 2780 | { |
| 2781 | .hook = mtk_hnat_ipv4_nf_local_out, |
| 2782 | .pf = NFPROTO_IPV4, |
| 2783 | .hooknum = NF_INET_LOCAL_OUT, |
| 2784 | .priority = NF_IP_PRI_LAST, |
| 2785 | }, |
| 2786 | { |
| 2787 | .hook = mtk_hnat_br_nf_local_in, |
| 2788 | .pf = NFPROTO_BRIDGE, |
| 2789 | .hooknum = NF_BR_LOCAL_IN, |
| 2790 | .priority = NF_BR_PRI_FIRST, |
| 2791 | }, |
| 2792 | { |
| 2793 | .hook = mtk_hnat_br_nf_local_out, |
| 2794 | .pf = NFPROTO_BRIDGE, |
| 2795 | .hooknum = NF_BR_LOCAL_OUT, |
| 2796 | .priority = NF_BR_PRI_LAST - 1, |
| 2797 | }, |
| 2798 | { |
| 2799 | .hook = mtk_pong_hqos_handler, |
| 2800 | .pf = NFPROTO_BRIDGE, |
| 2801 | .hooknum = NF_BR_PRE_ROUTING, |
developer | 2b85f65 | 2021-08-19 16:09:50 +0800 | [diff] [blame] | 2802 | .priority = NF_BR_PRI_FIRST + 1, |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2803 | }, |
| 2804 | }; |
| 2805 | |
| 2806 | int hnat_register_nf_hooks(void) |
| 2807 | { |
| 2808 | return nf_register_net_hooks(&init_net, mtk_hnat_nf_ops, ARRAY_SIZE(mtk_hnat_nf_ops)); |
| 2809 | } |
| 2810 | |
| 2811 | void hnat_unregister_nf_hooks(void) |
| 2812 | { |
| 2813 | nf_unregister_net_hooks(&init_net, mtk_hnat_nf_ops, ARRAY_SIZE(mtk_hnat_nf_ops)); |
| 2814 | } |
| 2815 | |
| 2816 | int whnat_adjust_nf_hooks(void) |
| 2817 | { |
| 2818 | struct nf_hook_ops *hook = mtk_hnat_nf_ops; |
| 2819 | unsigned int n = ARRAY_SIZE(mtk_hnat_nf_ops); |
| 2820 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2821 | while (n-- > 0) { |
| 2822 | if (hook[n].hook == mtk_hnat_br_nf_local_in) { |
| 2823 | hook[n].hooknum = NF_BR_PRE_ROUTING; |
developer | 2b85f65 | 2021-08-19 16:09:50 +0800 | [diff] [blame] | 2824 | hook[n].priority = NF_BR_PRI_FIRST + 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2825 | } else if (hook[n].hook == mtk_hnat_br_nf_local_out) { |
| 2826 | hook[n].hooknum = NF_BR_POST_ROUTING; |
| 2827 | } else if (hook[n].hook == mtk_pong_hqos_handler) { |
| 2828 | hook[n].hook = mtk_hnat_br_nf_forward; |
| 2829 | hook[n].hooknum = NF_BR_FORWARD; |
| 2830 | hook[n].priority = NF_BR_PRI_LAST - 1; |
| 2831 | } |
| 2832 | } |
| 2833 | |
| 2834 | return 0; |
| 2835 | } |
| 2836 | |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2837 | int mtk_hqos_ptype_cb(struct sk_buff *skb, struct net_device *dev, |
| 2838 | struct packet_type *pt, struct net_device *unused) |
| 2839 | { |
| 2840 | struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); |
| 2841 | |
| 2842 | skb_hnat_entry(skb) = ntohs(veth->h_vlan_TCI) & 0x3fff; |
| 2843 | skb_hnat_reason(skb) = HIT_BIND_FORCE_TO_CPU; |
| 2844 | |
developer | 659fdeb | 2022-12-01 23:03:07 +0800 | [diff] [blame] | 2845 | if (do_hnat_ge_to_ext(skb, __func__) == -1) |
| 2846 | return 1; |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2847 | |
| 2848 | return 0; |
| 2849 | } |
developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 2850 | |