| /* |
| * include/proto/h1.h |
| * This file contains HTTP/1 protocol definitions. |
| * |
| * Copyright (C) 2000-2017 Willy Tarreau - w@1wt.eu |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation, version 2.1 |
| * exclusively. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _PROTO_H1_H |
| #define _PROTO_H1_H |
| |
| #include <common/compiler.h> |
| #include <common/config.h> |
| #include <types/h1.h> |
| |
| extern const uint8_t h1_char_classes[256]; |
| |
| #define H1_FLG_CTL 0x01 |
| #define H1_FLG_SEP 0x02 |
| #define H1_FLG_LWS 0x04 |
| #define H1_FLG_SPHT 0x08 |
| #define H1_FLG_CRLF 0x10 |
| #define H1_FLG_TOK 0x20 |
| #define H1_FLG_VER 0x40 |
| |
| #define HTTP_IS_CTL(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_CTL) |
| #define HTTP_IS_SEP(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_SEP) |
| #define HTTP_IS_LWS(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_LWS) |
| #define HTTP_IS_SPHT(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_SPHT) |
| #define HTTP_IS_CRLF(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_CRLF) |
| #define HTTP_IS_TOKEN(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_TOK) |
| #define HTTP_IS_VER_TOKEN(x) (h1_char_classes[(uint8_t)(x)] & H1_FLG_VER) |
| |
| |
| /* Macros used in the HTTP/1 parser, to check for the expected presence of |
| * certain bytes (ef: LF) or to skip to next byte and yield in case of failure. |
| */ |
| |
| |
| /* Expects to find an LF at <ptr>. If not, set <state> to <where> and jump to |
| * <bad>. |
| */ |
| #define EXPECT_LF_HERE(ptr, bad, state, where) \ |
| do { \ |
| if (unlikely(*(ptr) != '\n')) { \ |
| state = (where); \ |
| goto bad; \ |
| } \ |
| } while (0) |
| |
| /* Increments pointer <ptr>, continues to label <more> if it's still below |
| * pointer <end>, or goes to <stop> and sets <state> to <where> if the end |
| * of buffer was reached. |
| */ |
| #define EAT_AND_JUMP_OR_RETURN(ptr, end, more, stop, state, where) \ |
| do { \ |
| if (likely(++(ptr) < (end))) \ |
| goto more; \ |
| else { \ |
| state = (where); \ |
| goto stop; \ |
| } \ |
| } while (0) |
| |
| /* for debugging, reports the HTTP/1 message state name */ |
| static inline const char *h1_msg_state_str(enum h1_state msg_state) |
| { |
| switch (msg_state) { |
| case HTTP_MSG_RQBEFORE: return "MSG_RQBEFORE"; |
| case HTTP_MSG_RQBEFORE_CR: return "MSG_RQBEFORE_CR"; |
| case HTTP_MSG_RQMETH: return "MSG_RQMETH"; |
| case HTTP_MSG_RQMETH_SP: return "MSG_RQMETH_SP"; |
| case HTTP_MSG_RQURI: return "MSG_RQURI"; |
| case HTTP_MSG_RQURI_SP: return "MSG_RQURI_SP"; |
| case HTTP_MSG_RQVER: return "MSG_RQVER"; |
| case HTTP_MSG_RQLINE_END: return "MSG_RQLINE_END"; |
| case HTTP_MSG_RPBEFORE: return "MSG_RPBEFORE"; |
| case HTTP_MSG_RPBEFORE_CR: return "MSG_RPBEFORE_CR"; |
| case HTTP_MSG_RPVER: return "MSG_RPVER"; |
| case HTTP_MSG_RPVER_SP: return "MSG_RPVER_SP"; |
| case HTTP_MSG_RPCODE: return "MSG_RPCODE"; |
| case HTTP_MSG_RPCODE_SP: return "MSG_RPCODE_SP"; |
| case HTTP_MSG_RPREASON: return "MSG_RPREASON"; |
| case HTTP_MSG_RPLINE_END: return "MSG_RPLINE_END"; |
| case HTTP_MSG_HDR_FIRST: return "MSG_HDR_FIRST"; |
| case HTTP_MSG_HDR_NAME: return "MSG_HDR_NAME"; |
| case HTTP_MSG_HDR_COL: return "MSG_HDR_COL"; |
| case HTTP_MSG_HDR_L1_SP: return "MSG_HDR_L1_SP"; |
| case HTTP_MSG_HDR_L1_LF: return "MSG_HDR_L1_LF"; |
| case HTTP_MSG_HDR_L1_LWS: return "MSG_HDR_L1_LWS"; |
| case HTTP_MSG_HDR_VAL: return "MSG_HDR_VAL"; |
| case HTTP_MSG_HDR_L2_LF: return "MSG_HDR_L2_LF"; |
| case HTTP_MSG_HDR_L2_LWS: return "MSG_HDR_L2_LWS"; |
| case HTTP_MSG_LAST_LF: return "MSG_LAST_LF"; |
| case HTTP_MSG_ERROR: return "MSG_ERROR"; |
| case HTTP_MSG_BODY: return "MSG_BODY"; |
| case HTTP_MSG_100_SENT: return "MSG_100_SENT"; |
| case HTTP_MSG_CHUNK_SIZE: return "MSG_CHUNK_SIZE"; |
| case HTTP_MSG_DATA: return "MSG_DATA"; |
| case HTTP_MSG_CHUNK_CRLF: return "MSG_CHUNK_CRLF"; |
| case HTTP_MSG_TRAILERS: return "MSG_TRAILERS"; |
| case HTTP_MSG_ENDING: return "MSG_ENDING"; |
| case HTTP_MSG_DONE: return "MSG_DONE"; |
| case HTTP_MSG_CLOSING: return "MSG_CLOSING"; |
| case HTTP_MSG_CLOSED: return "MSG_CLOSED"; |
| case HTTP_MSG_TUNNEL: return "MSG_TUNNEL"; |
| default: return "MSG_??????"; |
| } |
| } |
| |
| |
| #endif /* _PROTO_H1_H */ |