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/*
* Copyright (c) 2022 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SRC_PLUGINS_HTTP_HTTP_H_
#define SRC_PLUGINS_HTTP_HTTP_H_
#include <vnet/plugin/plugin.h>
#include <vpp/app/version.h>
#include <vppinfra/time_range.h>
#include <vnet/session/application_interface.h>
#include <vnet/session/application.h>
#include <http/http_buffer.h>
#define HTTP_DEBUG 0
#if HTTP_DEBUG
#define HTTP_DBG(_lvl, _fmt, _args...) \
if (_lvl <= HTTP_DEBUG) \
clib_warning (_fmt, ##_args)
#else
#define HTTP_DBG(_lvl, _fmt, _args...)
#endif
typedef struct http_conn_id_
{
union
{
session_handle_t app_session_handle;
u32 parent_app_api_ctx;
};
session_handle_t tc_session_handle;
u32 parent_app_wrk_index;
} http_conn_id_t;
STATIC_ASSERT (sizeof (http_conn_id_t) <= TRANSPORT_CONN_ID_LEN,
"ctx id must be less than TRANSPORT_CONN_ID_LEN");
typedef enum http_conn_state_
{
HTTP_CONN_STATE_LISTEN,
HTTP_CONN_STATE_CONNECTING,
HTTP_CONN_STATE_ESTABLISHED,
HTTP_CONN_STATE_TRANSPORT_CLOSED,
HTTP_CONN_STATE_APP_CLOSED,
HTTP_CONN_STATE_CLOSED
} http_conn_state_t;
typedef enum http_state_
{
HTTP_STATE_IDLE = 0,
HTTP_STATE_WAIT_APP_METHOD,
HTTP_STATE_WAIT_CLIENT_METHOD,
HTTP_STATE_WAIT_SERVER_REPLY,
HTTP_STATE_WAIT_APP_REPLY,
HTTP_STATE_CLIENT_IO_MORE_DATA,
HTTP_STATE_APP_IO_MORE_DATA,
HTTP_N_STATES,
} http_state_t;
typedef enum http_req_method_
{
HTTP_REQ_GET = 0,
HTTP_REQ_POST,
} http_req_method_t;
typedef enum http_msg_type_
{
HTTP_MSG_REQUEST,
HTTP_MSG_REPLY
} http_msg_type_t;
#define foreach_http_content_type \
_ (APP_7Z, ".7z", "application / x - 7z - compressed") \
_ (APP_DOC, ".doc", "application / msword") \
_ (APP_DOCX, ".docx", \
"application / vnd.openxmlformats - " \
"officedocument.wordprocessingml.document") \
_ (APP_EPUB, ".epub", "application / epub + zip") \
_ (APP_FONT, ".eot", "application / vnd.ms - fontobject") \
_ (APP_JAR, ".jar", "application / java - archive") \
_ (APP_JSON, ".json", "application / json") \
_ (APP_JSON_LD, ".jsonld", "application / ld + json") \
_ (APP_MPKG, ".mpkg", "application / vnd.apple.installer + xml") \
_ (APP_ODP, ".odp", "application / vnd.oasis.opendocument.presentation") \
_ (APP_ODS, ".ods", "application / vnd.oasis.opendocument.spreadsheet") \
_ (APP_ODT, ".odt", "application / vnd.oasis.opendocument.text") \
_ (APP_OGX, ".ogx", "application / ogg") \
_ (APP_PDF, ".pdf", "application / pdf") \
_ (APP_PHP, ".php", "application / x - httpd - php") \
_ (APP_PPT, ".ppt", "application / vnd.ms - powerpoint") \
_ (APP_PPTX, ".pptx", "application / vnd.ms - powerpoint") \
_ (APP_RAR, ".rar", "application / vnd.rar") \
_ (APP_RTF, ".rtf", "application / rtf") \
_ (APP_SH, ".sh", "application / x - sh") \
_ (APP_TAR, ".tar", "application / x - tar") \
_ (APP_VSD, ".vsd", "application / vnd.visio") \
_ (APP_XHTML, ".xhtml", "application / xhtml + xml") \
_ (APP_XLS, ".xls", "application / vnd.ms - excel") \
_ (APP_XML, ".xml", "application / xml") \
_ (APP_XSLX, ".xlsx", \
"application / vnd.openxmlformats - officedocument.spreadsheetml.sheet") \
_ (APP_XUL, ".xul", "application / vnd.mozilla.xul + xml") \
_ (APP_ZIP, ".zip", "application / zip") \
_ (AUDIO_AAC, ".aac", "audio / aac") \
_ (AUDIO_CD, ".cda", "application / x - cdf") \
_ (AUDIO_WAV, ".wav", "audio / wav") \
_ (AUDIO_WEBA, ".weba", "audio / webm") \
_ (AUDO_MIDI, ".midi", "audio / midi") \
_ (AUDO_MID, ".mid", "audo / midi") \
_ (AUDO_MP3, ".mp3", "audio / mpeg") \
_ (AUDO_OGA, ".oga", "audio / ogg") \
_ (AUDO_OPUS, ".opus", "audio / opus") \
_ (APP_OCTET_STREAM, ".bin", "application / octet - stream") \
_ (BZIP2, ".bz2", "application / x - bzip2") \
_ (BZIP, ".bz", "application / x - bzip") \
_ (FONT_OTF, ".otf", "font / otf") \
_ (FONT_TTF, ".ttf", "font / ttf") \
_ (FONT_WOFF2, ".woff2", "font / woff2") \
_ (FONT_WOFF, ".woff", "font / woff") \
_ (GZIP, ".gz", "application / gzip") \
_ (IMAGE_AVIF, ".avif", "image / avif") \
_ (IMAGE_BMP, ".bmp", "image / bmp") \
_ (IMAGE_GIF, ".gif", "image / gif") \
_ (IMAGE_ICON, ".ico", "image / vnd.microsoft.icon") \
_ (IMAGE_JPEG, ".jpeg", "image / jpeg") \
_ (IMAGE_JPG, ".jpg", "image / jpeg") \
_ (IMAGE_PNG, ".png", "image / png") \
_ (IMAGE_SVG, ".svg", "image / svg + xml") \
_ (IMAGE_TIFF, ".tiff", "image / tiff") \
_ (IMAGE_TIF, ".tif", "image / tiff") \
_ (IMAGE_WEBP, ".webp", "image / webp") \
_ (SCRIPT_CSH, ".csh", "application / x - csh") \
_ (TEXT_ABIWORD, ".abw", "application / x - abiword") \
_ (TEXT_ARCHIVE, ".arc", "application / x - freearc") \
_ (TEXT_AZW, ".azw", "application / vnd.amazon.ebook") \
_ (TEXT_CALENDAR, ".ics", "text / calendar") \
_ (TEXT_CSS, ".css", "text / css") \
_ (TEXT_CSV, ".csv", "text / csv") \
_ (TEXT_HTM, ".htm", "text / html") \
_ (TEXT_HTML, ".html", "text / html") \
_ (TEXT_JS, ".js", "text / javascript") \
_ (TEXT_MJS, ".mjs", "text / javascript") \
_ (TEXT_PLAIN, ".txt", "text / plain") \
_ (VIDEO_3GP2, ".3g2", "video / 3gpp2") \
_ (VIDEO_3GP, ".3gp", "video / 3gpp") \
_ (VIDEO_AVI, ".avi", "video / x - msvideo") \
_ (VIDEO_MP4, ".mp4", "video / mp4") \
_ (VIDEO_MPEG, ".mpeg", "video / mpeg") \
_ (VIDEO_OGG, ".ogv", "video / ogg") \
_ (VIDEO_TS, ".ts", "video / mp2t") \
_ (VIDEO_WEBM, ".webm", "video / webm")
typedef enum http_content_type_
{
#define _(s, ext, str) HTTP_CONTENT_##s,
foreach_http_content_type
#undef _
} http_content_type_t;
#define foreach_http_status_code \
_ (200, OK, "200 OK") \
_ (301, MOVED, "301 Moved Permanently") \
_ (400, BAD_REQUEST, "400 Bad Request") \
_ (404, NOT_FOUND, "404 Not Found") \
_ (405, METHOD_NOT_ALLOWED, "405 Method Not Allowed") \
_ (500, INTERNAL_ERROR, "500 Internal Server Error")
typedef enum http_status_code_
{
#define _(c, s, str) HTTP_STATUS_##s,
foreach_http_status_code
#undef _
HTTP_N_STATUS
} http_status_code_t;
typedef enum http_msg_data_type_
{
HTTP_MSG_DATA_INLINE,
HTTP_MSG_DATA_PTR
} http_msg_data_type_t;
typedef struct http_msg_data_
{
http_msg_data_type_t type;
u64 len;
u8 data[0];
} http_msg_data_t;
typedef struct http_msg_
{
http_msg_type_t type;
union
{
http_req_method_t method_type;
http_status_code_t code;
};
http_content_type_t content_type;
http_msg_data_t data;
} http_msg_t;
typedef struct http_tc_
{
union
{
transport_connection_t connection;
http_conn_id_t c_http_conn_id;
};
#define h_tc_session_handle c_http_conn_id.tc_session_handle
#define h_pa_wrk_index c_http_conn_id.parent_app_wrk_index
#define h_pa_session_handle c_http_conn_id.app_session_handle
#define h_pa_app_api_ctx c_http_conn_id.parent_app_api_ctx
#define h_hc_index connection.c_index
http_conn_state_t state;
u32 timer_handle;
u8 *app_name;
/*
* Current request
*/
http_state_t http_state;
http_req_method_t method;
u8 *rx_buf;
u32 rx_buf_offset;
http_buffer_t tx_buf;
u32 to_recv;
u32 bytes_dequeued;
} http_conn_t;
typedef struct http_worker_
{
http_conn_t *conn_pool;
} http_worker_t;
typedef struct http_main_
{
http_worker_t *wrk;
http_conn_t *listener_pool;
u32 app_index;
clib_timebase_t timebase;
/*
* Runtime config
*/
u8 debug_level;
/*
* Config
*/
u64 first_seg_size;
u64 add_seg_size;
u32 fifo_size;
} http_main_t;
static inline int
http_state_is_tx_valid (http_conn_t *hc)
{
http_state_t state = hc->http_state;
return (state == HTTP_STATE_APP_IO_MORE_DATA ||
state == HTTP_STATE_CLIENT_IO_MORE_DATA ||
state == HTTP_STATE_WAIT_APP_REPLY ||
state == HTTP_STATE_WAIT_APP_METHOD);
}
/**
* Remove dot segments from path (RFC3986 section 5.2.4)
*
* @param path Path to sanitize.
*
* @return New vector with sanitized path.
*
* The caller is always responsible to free the returned vector.
*/
always_inline u8 *
http_path_remove_dot_segments (u8 *path)
{
u32 *segments = 0, *segments_len = 0, segment_len;
u8 *new_path = 0;
int i, ii;
if (!path)
return vec_new (u8, 0);
segments = vec_new (u32, 1);
/* first segment */
segments[0] = 0;
/* find all segments */
for (i = 1; i < (vec_len (path) - 1); i++)
{
if (path[i] == '/')
vec_add1 (segments, i + 1);
}
/* dummy tail */
vec_add1 (segments, vec_len (path));
/* scan all segments for "." and ".." */
segments_len = vec_new (u32, vec_len (segments) - 1);
for (i = 0; i < vec_len (segments_len); i++)
{
segment_len = segments[i + 1] - segments[i];
if (segment_len == 2 && path[segments[i]] == '.')
segment_len = 0;
else if (segment_len == 3 && path[segments[i]] == '.' &&
path[segments[i] + 1] == '.')
{
segment_len = 0;
/* remove parent (if any) */
for (ii = i - 1; ii >= 0; ii--)
{
if (segments_len[ii])
{
segments_len[ii] = 0;
break;
}
}
}
segments_len[i] = segment_len;
}
/* we might end with empty path, so return at least empty vector */
new_path = vec_new (u8, 0);
/* append all valid segments */
for (i = 0; i < vec_len (segments_len); i++)
{
if (segments_len[i])
vec_add (new_path, path + segments[i], segments_len[i]);
}
vec_free (segments);
vec_free (segments_len);
return new_path;
}
#endif /* SRC_PLUGINS_HTTP_HTTP_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
