Mercurial > hg > nginx
annotate src/core/ngx_open_file_cache.c @ 4477:7033faf6dc3c
Added disable_symlinks directive.
To completely disable symlinks (disable_symlinks on)
we use openat(O_NOFOLLOW) for each path component
to avoid races.
To allow symlinks with the same owner (disable_symlinks if_not_owner),
use openat() (followed by fstat()) and fstatat(AT_SYMLINK_NOFOLLOW),
and then compare uids between fstat() and fstatat().
As there is a race between openat() and fstatat() we don't
know if openat() in fact opened symlink or not. Therefore,
we have to compare uids even if fstatat() reports the opened
component isn't a symlink (as we don't know whether it was
symlink during openat() or not).
Default value is off, i.e. symlinks are allowed.
| author | Andrey Belov <defan@nginx.com> |
|---|---|
| date | Mon, 13 Feb 2012 16:29:04 +0000 |
| parents | 94ef9d25ec5b |
| children | 5e6436812c9a |
| rev | line source |
|---|---|
| 1453 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 1453 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_event.h> | |
| 11 | |
| 12 | |
| 13 /* | |
| 14 * open file cache caches | |
| 15 * open file handles with stat() info; | |
| 16 * directories stat() info; | |
| 17 * files and directories errors: not found, access denied, etc. | |
| 18 */ | |
| 19 | |
| 20 | |
| 3178 | 21 #define NGX_MIN_READ_AHEAD (128 * 1024) |
| 22 | |
| 23 | |
| 1453 | 24 static void ngx_open_file_cache_cleanup(void *data); |
|
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Added disable_symlinks directive.
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parents:
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diff
changeset
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25 #if (NGX_HAVE_OPENAT) |
|
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Added disable_symlinks directive.
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changeset
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26 static ngx_fd_t ngx_openat_file_owner(ngx_fd_t at_fd, const u_char *name, |
|
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Added disable_symlinks directive.
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changeset
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27 ngx_int_t mode, ngx_int_t create, ngx_int_t access); |
|
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Added disable_symlinks directive.
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28 #endif |
|
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Added disable_symlinks directive.
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29 static ngx_fd_t ngx_open_file_wrapper(ngx_str_t *name, |
|
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Added disable_symlinks directive.
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30 ngx_open_file_info_t *of, ngx_int_t mode, ngx_int_t create, |
|
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31 ngx_int_t access); |
|
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parents:
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32 static ngx_int_t ngx_file_info_wrapper(ngx_str_t *name, |
|
7033faf6dc3c
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parents:
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changeset
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33 ngx_open_file_info_t *of, ngx_file_info_t *fi); |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
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changeset
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34 static ngx_int_t ngx_open_and_stat_file(ngx_str_t *name, |
|
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
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changeset
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35 ngx_open_file_info_t *of, ngx_log_t *log); |
| 1775 | 36 static void ngx_open_file_add_event(ngx_open_file_cache_t *cache, |
| 37 ngx_cached_open_file_t *file, ngx_open_file_info_t *of, ngx_log_t *log); | |
| 1453 | 38 static void ngx_open_file_cleanup(void *data); |
| 39 static void ngx_close_cached_file(ngx_open_file_cache_t *cache, | |
| 1772 | 40 ngx_cached_open_file_t *file, ngx_uint_t min_uses, ngx_log_t *log); |
| 1775 | 41 static void ngx_open_file_del_event(ngx_cached_open_file_t *file); |
| 1453 | 42 static void ngx_expire_old_cached_files(ngx_open_file_cache_t *cache, |
| 43 ngx_uint_t n, ngx_log_t *log); | |
| 44 static void ngx_open_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp, | |
| 45 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
| 1775 | 46 static ngx_cached_open_file_t * |
| 47 ngx_open_file_lookup(ngx_open_file_cache_t *cache, ngx_str_t *name, | |
| 48 uint32_t hash); | |
| 1453 | 49 static void ngx_open_file_cache_remove(ngx_event_t *ev); |
| 50 | |
| 51 | |
| 52 ngx_open_file_cache_t * | |
| 53 ngx_open_file_cache_init(ngx_pool_t *pool, ngx_uint_t max, time_t inactive) | |
| 54 { | |
| 55 ngx_pool_cleanup_t *cln; | |
| 56 ngx_open_file_cache_t *cache; | |
| 57 | |
| 58 cache = ngx_palloc(pool, sizeof(ngx_open_file_cache_t)); | |
| 59 if (cache == NULL) { | |
| 60 return NULL; | |
| 61 } | |
| 62 | |
| 1761 | 63 ngx_rbtree_init(&cache->rbtree, &cache->sentinel, |
|
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64 ngx_open_file_cache_rbtree_insert_value); |
| 1453 | 65 |
| 1765 | 66 ngx_queue_init(&cache->expire_queue); |
| 67 | |
| 1453 | 68 cache->current = 0; |
| 69 cache->max = max; | |
| 70 cache->inactive = inactive; | |
| 71 | |
| 72 cln = ngx_pool_cleanup_add(pool, 0); | |
| 73 if (cln == NULL) { | |
| 74 return NULL; | |
| 75 } | |
| 76 | |
| 77 cln->handler = ngx_open_file_cache_cleanup; | |
| 78 cln->data = cache; | |
| 79 | |
| 80 return cache; | |
| 81 } | |
| 82 | |
| 83 | |
| 84 static void | |
| 85 ngx_open_file_cache_cleanup(void *data) | |
| 86 { | |
| 87 ngx_open_file_cache_t *cache = data; | |
| 88 | |
| 1765 | 89 ngx_queue_t *q; |
| 1453 | 90 ngx_cached_open_file_t *file; |
| 91 | |
| 92 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 93 "open file cache cleanup"); | |
| 94 | |
| 95 for ( ;; ) { | |
| 96 | |
| 1765 | 97 if (ngx_queue_empty(&cache->expire_queue)) { |
| 1766 | 98 break; |
| 1453 | 99 } |
| 100 | |
| 1765 | 101 q = ngx_queue_last(&cache->expire_queue); |
| 102 | |
| 103 file = ngx_queue_data(q, ngx_cached_open_file_t, queue); | |
| 104 | |
| 105 ngx_queue_remove(q); | |
| 1453 | 106 |
| 107 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
| 108 | |
| 109 cache->current--; | |
| 110 | |
| 111 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 112 "delete cached open file: %s", file->name); | |
| 113 | |
| 114 if (!file->err && !file->is_dir) { | |
| 115 file->close = 1; | |
| 116 file->count = 0; | |
| 1772 | 117 ngx_close_cached_file(cache, file, 0, ngx_cycle->log); |
| 1453 | 118 |
| 119 } else { | |
| 120 ngx_free(file->name); | |
| 121 ngx_free(file); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 if (cache->current) { | |
| 126 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 127 "%d items still leave in open file cache", | |
| 128 cache->current); | |
| 129 } | |
| 130 | |
| 131 if (cache->rbtree.root != cache->rbtree.sentinel) { | |
| 132 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 133 "rbtree still is not empty in open file cache"); | |
| 134 | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 | |
| 139 ngx_int_t | |
| 140 ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name, | |
| 141 ngx_open_file_info_t *of, ngx_pool_t *pool) | |
| 142 { | |
| 143 time_t now; | |
| 144 uint32_t hash; | |
| 145 ngx_int_t rc; | |
|
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*) of.test_only to not open file if only stat() is enough
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146 ngx_file_info_t fi; |
| 1453 | 147 ngx_pool_cleanup_t *cln; |
| 148 ngx_cached_open_file_t *file; | |
| 149 ngx_pool_cleanup_file_t *clnf; | |
| 150 ngx_open_file_cache_cleanup_t *ofcln; | |
| 151 | |
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152 of->fd = NGX_INVALID_FILE; |
| 1453 | 153 of->err = 0; |
| 154 | |
| 155 if (cache == NULL) { | |
| 156 | |
|
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157 if (of->test_only) { |
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09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
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158 |
|
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parents:
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159 if (ngx_file_info_wrapper(name, of, &fi) == NGX_FILE_ERROR) { |
|
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*) of.test_only to not open file if only stat() is enough
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160 return NGX_ERROR; |
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09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
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161 } |
|
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
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162 |
|
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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163 of->uniq = ngx_file_uniq(&fi); |
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164 of->mtime = ngx_file_mtime(&fi); |
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09cab3f8d92e
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165 of->size = ngx_file_size(&fi); |
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Use more precise stat.st_blocks to account cache size on Unix
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166 of->fs_size = ngx_file_fs_size(&fi); |
|
2756
09cab3f8d92e
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parents:
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167 of->is_dir = ngx_is_dir(&fi); |
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09cab3f8d92e
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parents:
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168 of->is_file = ngx_is_file(&fi); |
|
09cab3f8d92e
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169 of->is_link = ngx_is_link(&fi); |
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09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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170 of->is_exec = ngx_is_exec(&fi); |
|
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
2629
diff
changeset
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171 |
|
09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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172 return NGX_OK; |
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09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
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173 } |
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09cab3f8d92e
*) of.test_only to not open file if only stat() is enough
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parents:
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changeset
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174 |
| 1453 | 175 cln = ngx_pool_cleanup_add(pool, sizeof(ngx_pool_cleanup_file_t)); |
| 176 if (cln == NULL) { | |
| 177 return NGX_ERROR; | |
| 178 } | |
| 179 | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
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180 rc = ngx_open_and_stat_file(name, of, pool->log); |
| 1453 | 181 |
| 182 if (rc == NGX_OK && !of->is_dir) { | |
| 183 cln->handler = ngx_pool_cleanup_file; | |
| 184 clnf = cln->data; | |
| 185 | |
| 186 clnf->fd = of->fd; | |
| 187 clnf->name = name->data; | |
| 188 clnf->log = pool->log; | |
| 189 } | |
| 190 | |
| 191 return rc; | |
| 192 } | |
| 193 | |
| 194 cln = ngx_pool_cleanup_add(pool, sizeof(ngx_open_file_cache_cleanup_t)); | |
| 195 if (cln == NULL) { | |
| 196 return NGX_ERROR; | |
| 197 } | |
| 198 | |
| 199 now = ngx_time(); | |
| 200 | |
| 1775 | 201 hash = ngx_crc32_long(name->data, name->len); |
| 202 | |
| 203 file = ngx_open_file_lookup(cache, name, hash); | |
| 204 | |
| 205 if (file) { | |
| 206 | |
| 207 file->uses++; | |
| 208 | |
| 1987 | 209 ngx_queue_remove(&file->queue); |
| 210 | |
| 1775 | 211 if (file->fd == NGX_INVALID_FILE && file->err == 0 && !file->is_dir) { |
| 212 | |
| 213 /* file was not used often enough to keep open */ | |
| 214 | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
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parents:
4412
diff
changeset
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215 rc = ngx_open_and_stat_file(name, of, pool->log); |
| 1453 | 216 |
| 1775 | 217 if (rc != NGX_OK && (of->err == 0 || !of->errors)) { |
| 218 goto failed; | |
| 219 } | |
| 220 | |
| 221 goto add_event; | |
| 1453 | 222 } |
| 223 | |
| 2070 | 224 if (file->use_event |
|
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initialize of.uniq in ngx_open_cached_file()
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225 || (file->event == NULL |
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67a29af877ed
initialize of.uniq in ngx_open_cached_file()
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226 && (of->uniq == 0 || of->uniq == file->uniq) |
|
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227 && now - file->created < of->valid |
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228 #if (NGX_HAVE_OPENAT) |
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229 && of->disable_symlinks == file->disable_symlinks |
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230 #endif |
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231 )) |
| 1775 | 232 { |
| 233 if (file->err == 0) { | |
| 1772 | 234 |
| 1775 | 235 of->fd = file->fd; |
| 236 of->uniq = file->uniq; | |
| 237 of->mtime = file->mtime; | |
| 238 of->size = file->size; | |
| 1453 | 239 |
| 1775 | 240 of->is_dir = file->is_dir; |
| 241 of->is_file = file->is_file; | |
| 242 of->is_link = file->is_link; | |
| 243 of->is_exec = file->is_exec; | |
|
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changeset
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244 of->is_directio = file->is_directio; |
| 1453 | 245 |
| 1775 | 246 if (!file->is_dir) { |
| 247 file->count++; | |
| 248 ngx_open_file_add_event(cache, file, of, pool->log); | |
| 1453 | 249 } |
| 250 | |
| 1775 | 251 } else { |
| 252 of->err = file->err; | |
|
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7033faf6dc3c
Added disable_symlinks directive.
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parents:
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253 #if (NGX_HAVE_OPENAT) |
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7033faf6dc3c
Added disable_symlinks directive.
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parents:
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diff
changeset
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254 of->failed = file->disable_symlinks ? ngx_openat_file_n |
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Added disable_symlinks directive.
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parents:
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255 : ngx_open_file_n; |
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7033faf6dc3c
Added disable_symlinks directive.
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parents:
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256 #else |
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2783
87c088e6956a
set of.failed for cached error, the bug has been introduced in r2757
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2782
diff
changeset
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257 of->failed = ngx_open_file_n; |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
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parents:
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diff
changeset
|
258 #endif |
| 1775 | 259 } |
| 260 | |
| 261 goto found; | |
| 262 } | |
| 263 | |
| 264 ngx_log_debug4(NGX_LOG_DEBUG_CORE, pool->log, 0, | |
| 265 "retest open file: %s, fd:%d, c:%d, e:%d", | |
| 266 file->name, file->fd, file->count, file->err); | |
| 1453 | 267 |
| 1775 | 268 if (file->is_dir) { |
| 269 | |
| 270 /* | |
| 271 * chances that directory became file are very small | |
| 272 * so test_dir flag allows to use a single syscall | |
| 273 * in ngx_file_info() instead of three syscalls | |
| 274 */ | |
| 275 | |
| 276 of->test_dir = 1; | |
| 277 } | |
| 278 | |
|
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279 of->fd = file->fd; |
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use ngx_file_info() and test uniq if file is already open
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parents:
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diff
changeset
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280 of->uniq = file->uniq; |
|
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use ngx_file_info() and test uniq if file is already open
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parents:
2063
diff
changeset
|
281 |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
282 rc = ngx_open_and_stat_file(name, of, pool->log); |
| 1453 | 283 |
| 1775 | 284 if (rc != NGX_OK && (of->err == 0 || !of->errors)) { |
| 285 goto failed; | |
| 286 } | |
| 287 | |
| 288 if (of->is_dir) { | |
| 289 | |
| 290 if (file->is_dir || file->err) { | |
| 291 goto update; | |
| 292 } | |
| 293 | |
| 294 /* file became directory */ | |
| 1453 | 295 |
| 1775 | 296 } else if (of->err == 0) { /* file */ |
| 297 | |
| 298 if (file->is_dir || file->err) { | |
| 299 goto add_event; | |
| 300 } | |
| 1453 | 301 |
| 2070 | 302 if (of->uniq == file->uniq) { |
| 1453 | 303 |
| 1775 | 304 if (file->event) { |
| 305 file->use_event = 1; | |
| 1453 | 306 } |
| 307 | |
|
4101
31cf2902de60
Fix of the previous commit: is_directio flag processing introduced in r4077
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parents:
4100
diff
changeset
|
308 of->is_directio = file->is_directio; |
|
31cf2902de60
Fix of the previous commit: is_directio flag processing introduced in r4077
Igor Sysoev <igor@sysoev.ru>
parents:
4100
diff
changeset
|
309 |
|
4100
efeee901439a
Bugfix: open_file_cache did not update file info on retest.
Igor Sysoev <igor@sysoev.ru>
parents:
4076
diff
changeset
|
310 goto update; |
| 1775 | 311 } |
| 1453 | 312 |
| 1775 | 313 /* file was changed */ |
| 1453 | 314 |
| 1775 | 315 } else { /* error to cache */ |
| 1453 | 316 |
| 1775 | 317 if (file->err || file->is_dir) { |
| 318 goto update; | |
| 1453 | 319 } |
| 320 | |
| 1775 | 321 /* file was removed, etc. */ |
| 322 } | |
| 323 | |
| 324 if (file->count == 0) { | |
| 325 | |
| 326 ngx_open_file_del_event(file); | |
| 1453 | 327 |
| 1775 | 328 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { |
| 329 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
330 ngx_close_file_n " \"%V\" failed", name); |
| 1775 | 331 } |
| 1453 | 332 |
| 1775 | 333 goto add_event; |
| 334 } | |
| 335 | |
| 336 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
| 337 | |
| 338 cache->current--; | |
| 339 | |
| 340 file->close = 1; | |
| 341 | |
| 342 goto create; | |
| 1453 | 343 } |
| 344 | |
| 345 /* not found */ | |
| 346 | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
347 rc = ngx_open_and_stat_file(name, of, pool->log); |
| 1453 | 348 |
| 349 if (rc != NGX_OK && (of->err == 0 || !of->errors)) { | |
| 350 goto failed; | |
| 351 } | |
| 352 | |
| 353 create: | |
| 354 | |
| 355 if (cache->current >= cache->max) { | |
| 356 ngx_expire_old_cached_files(cache, 0, pool->log); | |
| 357 } | |
| 358 | |
| 359 file = ngx_alloc(sizeof(ngx_cached_open_file_t), pool->log); | |
| 360 | |
| 361 if (file == NULL) { | |
| 362 goto failed; | |
| 363 } | |
| 364 | |
| 365 file->name = ngx_alloc(name->len + 1, pool->log); | |
| 366 | |
| 367 if (file->name == NULL) { | |
| 368 ngx_free(file); | |
| 369 file = NULL; | |
| 370 goto failed; | |
| 371 } | |
| 372 | |
| 373 ngx_cpystrn(file->name, name->data, name->len + 1); | |
| 374 | |
| 375 file->node.key = hash; | |
| 376 | |
| 377 ngx_rbtree_insert(&cache->rbtree, &file->node); | |
| 378 | |
| 379 cache->current++; | |
| 380 | |
| 1775 | 381 file->uses = 1; |
| 1453 | 382 file->count = 0; |
|
2934
b6d588fa3ee9
initialize use_event field in open file cache
Igor Sysoev <igor@sysoev.ru>
parents:
2783
diff
changeset
|
383 file->use_event = 0; |
| 1775 | 384 file->event = NULL; |
| 385 | |
| 386 add_event: | |
| 387 | |
| 388 ngx_open_file_add_event(cache, file, of, pool->log); | |
| 1453 | 389 |
| 390 update: | |
| 391 | |
| 392 file->fd = of->fd; | |
| 393 file->err = of->err; | |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
394 #if (NGX_HAVE_OPENAT) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
395 file->disable_symlinks = of->disable_symlinks; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
396 #endif |
| 1453 | 397 |
| 398 if (of->err == 0) { | |
| 399 file->uniq = of->uniq; | |
| 400 file->mtime = of->mtime; | |
| 401 file->size = of->size; | |
| 402 | |
| 403 file->close = 0; | |
| 404 | |
| 405 file->is_dir = of->is_dir; | |
| 406 file->is_file = of->is_file; | |
| 407 file->is_link = of->is_link; | |
| 408 file->is_exec = of->is_exec; | |
|
2246
987831d73bd8
cache directio flag in open file cache
Igor Sysoev <igor@sysoev.ru>
parents:
2231
diff
changeset
|
409 file->is_directio = of->is_directio; |
| 1453 | 410 |
| 411 if (!of->is_dir) { | |
| 412 file->count++; | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 file->created = now; | |
| 417 | |
| 418 found: | |
| 419 | |
| 420 file->accessed = now; | |
| 421 | |
| 1765 | 422 ngx_queue_insert_head(&cache->expire_queue, &file->queue); |
| 1453 | 423 |
| 1772 | 424 ngx_log_debug5(NGX_LOG_DEBUG_CORE, pool->log, 0, |
| 425 "cached open file: %s, fd:%d, c:%d, e:%d, u:%d", | |
| 426 file->name, file->fd, file->count, file->err, file->uses); | |
| 1453 | 427 |
| 428 if (of->err == 0) { | |
| 429 | |
| 430 if (!of->is_dir) { | |
| 431 cln->handler = ngx_open_file_cleanup; | |
| 432 ofcln = cln->data; | |
| 433 | |
| 434 ofcln->cache = cache; | |
| 435 ofcln->file = file; | |
| 1772 | 436 ofcln->min_uses = of->min_uses; |
| 1453 | 437 ofcln->log = pool->log; |
| 438 } | |
| 439 | |
| 440 return NGX_OK; | |
| 441 } | |
| 442 | |
| 443 return NGX_ERROR; | |
| 444 | |
| 445 failed: | |
| 446 | |
|
1988
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
447 if (file) { |
| 1453 | 448 ngx_rbtree_delete(&cache->rbtree, &file->node); |
| 449 | |
| 450 cache->current--; | |
| 451 | |
|
1988
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
452 if (file->count == 0) { |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
453 |
|
2006
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
454 if (file->fd != NGX_INVALID_FILE) { |
|
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
455 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { |
|
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
456 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, |
|
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
457 ngx_close_file_n " \"%s\" failed", |
|
1988
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
458 file->name); |
|
2006
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
459 } |
|
b52cb9bf2064
style fix: remove tabs and trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1988
diff
changeset
|
460 } |
|
1988
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
461 |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
462 ngx_free(file->name); |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
463 ngx_free(file); |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
464 |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
465 } else { |
|
34051c712e41
fix segfault when file is deleted and open_file_cache_errors is off
Igor Sysoev <igor@sysoev.ru>
parents:
1987
diff
changeset
|
466 file->close = 1; |
| 1453 | 467 } |
| 468 } | |
| 469 | |
| 470 if (of->fd != NGX_INVALID_FILE) { | |
| 471 if (ngx_close_file(of->fd) == NGX_FILE_ERROR) { | |
| 472 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
473 ngx_close_file_n " \"%V\" failed", name); |
| 1453 | 474 } |
| 475 } | |
| 476 | |
| 477 return NGX_ERROR; | |
| 478 } | |
| 479 | |
| 480 | |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
481 #if (NGX_HAVE_OPENAT) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
482 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
483 static ngx_fd_t |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
484 ngx_openat_file_owner(ngx_fd_t at_fd, const u_char *name, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
485 ngx_int_t mode, ngx_int_t create, ngx_int_t access) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
486 { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
487 ngx_fd_t fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
488 ngx_file_info_t fi, atfi; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
489 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
490 /* |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
491 * To allow symlinks with the same owner, use openat() (followed |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
492 * by fstat()) and fstatat(AT_SYMLINK_NOFOLLOW), and then compare |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
493 * uids between fstat() and fstatat(). |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
494 * |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
495 * As there is a race between openat() and fstatat() we don't |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
496 * know if openat() in fact opened symlink or not. Therefore, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
497 * we have to compare uids even if fstatat() reports the opened |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
498 * component isn't a symlink (as we don't know whether it was |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
499 * symlink during openat() or not). |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
500 */ |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
501 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
502 fd = ngx_openat_file(at_fd, name, mode, create, access); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
503 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
504 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
505 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
506 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
507 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
508 if (ngx_file_at_info(at_fd, name, &atfi, AT_SYMLINK_NOFOLLOW) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
509 == NGX_FILE_ERROR) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
510 { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
511 ngx_close_file(fd); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
512 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
513 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
514 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
515 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
516 ngx_close_file(fd); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
517 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
518 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
519 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
520 if (fi.st_uid != atfi.st_uid) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
521 ngx_close_file(fd); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
522 ngx_set_errno(NGX_ELOOP); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
523 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
524 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
525 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
526 return fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
527 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
528 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
529 #endif |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
530 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
531 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
532 static ngx_fd_t |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
533 ngx_open_file_wrapper(ngx_str_t *name, ngx_open_file_info_t *of, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
534 ngx_int_t mode, ngx_int_t create, ngx_int_t access) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
535 { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
536 ngx_fd_t fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
537 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
538 #if !(NGX_HAVE_OPENAT) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
539 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
540 fd = ngx_open_file(name->data, mode, create, access); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
541 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
542 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
543 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
544 of->failed = ngx_open_file_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
545 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
546 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
547 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
548 return fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
549 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
550 #else |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
551 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
552 u_char *p, *cp, *end; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
553 ngx_fd_t at_fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
554 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
555 if (of->disable_symlinks == NGX_DISABLE_SYMLINKS_OFF) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
556 fd = ngx_open_file(name->data, mode, create, access); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
557 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
558 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
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diff
changeset
|
559 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
560 of->failed = ngx_open_file_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
561 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
562 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
563 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
564 return fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
565 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
566 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
567 at_fd = ngx_openat_file(AT_FDCWD, "/", NGX_FILE_RDONLY|NGX_FILE_NONBLOCK, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
568 NGX_FILE_OPEN, 0); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
569 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
570 if (at_fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
571 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
572 of->failed = ngx_openat_file_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
573 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
574 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
575 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
576 end = name->data + name->len; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
577 p = name->data + 1; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
578 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
579 for ( ;; ) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
580 cp = ngx_strlchr(p, end, '/'); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
581 if (cp == NULL) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
582 break; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
583 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
584 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
585 *cp = '\0'; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
586 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
587 if (of->disable_symlinks == NGX_DISABLE_SYMLINKS_NOTOWNER) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
588 fd = ngx_openat_file_owner(at_fd, p, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
589 NGX_FILE_RDONLY|NGX_FILE_NONBLOCK, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
590 NGX_FILE_OPEN, 0); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
591 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
592 } else { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
593 fd = ngx_openat_file(at_fd, p, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
594 NGX_FILE_RDONLY|NGX_FILE_NONBLOCK|NGX_FILE_NOFOLLOW, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
595 NGX_FILE_OPEN, 0); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
596 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
597 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
598 *cp = '/'; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
599 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
600 ngx_close_file(at_fd); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
601 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
602 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
603 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
604 of->failed = ngx_openat_file_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
605 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
606 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
607 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
608 p = cp + 1; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
609 at_fd = fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
610 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
611 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
612 if (of->disable_symlinks == NGX_DISABLE_SYMLINKS_NOTOWNER) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
613 fd = ngx_openat_file_owner(at_fd, p, mode, create, access); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
614 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
615 } else { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
616 fd = ngx_openat_file(at_fd, p, mode|NGX_FILE_NOFOLLOW, create, access); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
617 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
618 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
619 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
620 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
621 of->failed = ngx_openat_file_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
622 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
623 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
624 ngx_close_file(at_fd); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
625 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
626 return fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
627 #endif |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
628 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
629 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
630 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
631 static ngx_int_t |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
632 ngx_file_info_wrapper(ngx_str_t *name, ngx_open_file_info_t *of, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
633 ngx_file_info_t *fi) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
634 { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
635 ngx_int_t rc; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
636 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
637 #if !(NGX_HAVE_OPENAT) |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
638 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
639 rc = ngx_file_info(name->data, fi); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
640 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
641 if (rc == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
642 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
643 of->failed = ngx_file_info_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
644 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
645 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
646 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
647 return rc; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
648 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
649 #else |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
650 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
651 ngx_fd_t fd; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
652 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
653 if (of->disable_symlinks == NGX_DISABLE_SYMLINKS_OFF) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
654 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
655 rc = ngx_file_info(name->data, fi); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
656 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
657 if (rc == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
658 of->err = ngx_errno; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
659 of->failed = ngx_file_info_n; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
660 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
661 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
662 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
663 return rc; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
664 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
665 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
666 fd = ngx_open_file_wrapper(name, of, NGX_FILE_RDONLY|NGX_FILE_NONBLOCK, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
667 NGX_FILE_OPEN, 0); |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
668 |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
669 if (fd == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
670 return NGX_FILE_ERROR; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
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diff
changeset
|
671 } |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
672 |
|
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Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
673 if (ngx_fd_info(fd, fi) == NGX_FILE_ERROR) { |
|
7033faf6dc3c
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parents:
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diff
changeset
|
674 of->err = ngx_errno; |
|
7033faf6dc3c
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parents:
4476
diff
changeset
|
675 of->failed = ngx_fd_info_n; |
|
7033faf6dc3c
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diff
changeset
|
676 ngx_close_file(fd); |
|
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|
677 return NGX_FILE_ERROR; |
|
7033faf6dc3c
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parents:
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diff
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|
678 } |
|
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Added disable_symlinks directive.
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parents:
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diff
changeset
|
679 |
|
7033faf6dc3c
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parents:
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diff
changeset
|
680 ngx_close_file(fd); |
|
7033faf6dc3c
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diff
changeset
|
681 |
|
7033faf6dc3c
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parents:
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|
682 return NGX_OK; |
|
7033faf6dc3c
Added disable_symlinks directive.
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changeset
|
683 #endif |
|
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parents:
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|
684 } |
|
7033faf6dc3c
Added disable_symlinks directive.
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parents:
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diff
changeset
|
685 |
|
7033faf6dc3c
Added disable_symlinks directive.
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parents:
4476
diff
changeset
|
686 |
| 1453 | 687 static ngx_int_t |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
688 ngx_open_and_stat_file(ngx_str_t *name, ngx_open_file_info_t *of, |
|
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
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diff
changeset
|
689 ngx_log_t *log) |
| 1453 | 690 { |
| 691 ngx_fd_t fd; | |
| 692 ngx_file_info_t fi; | |
| 693 | |
| 2070 | 694 if (of->fd != NGX_INVALID_FILE) { |
| 1453 | 695 |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
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parents:
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diff
changeset
|
696 if (ngx_file_info_wrapper(name, of, &fi) == NGX_FILE_ERROR) { |
|
7033faf6dc3c
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diff
changeset
|
697 of->fd = NGX_INVALID_FILE; |
|
7033faf6dc3c
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diff
changeset
|
698 return NGX_ERROR; |
| 1453 | 699 } |
| 700 | |
| 2070 | 701 if (of->uniq == ngx_file_uniq(&fi)) { |
|
2069
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
702 goto done; |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
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parents:
2063
diff
changeset
|
703 } |
| 1453 | 704 |
| 2070 | 705 } else if (of->test_dir) { |
| 706 | |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
707 if (ngx_file_info_wrapper(name, of, &fi) == NGX_FILE_ERROR) { |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
708 of->fd = NGX_INVALID_FILE; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
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diff
changeset
|
709 return NGX_ERROR; |
| 2070 | 710 } |
| 711 | |
|
2460
225fa4abd76f
test ngx_file_info() result, the bug has been introduced in r2070
Igor Sysoev <igor@sysoev.ru>
parents:
2246
diff
changeset
|
712 if (ngx_is_dir(&fi)) { |
|
2069
23930ccd2642
use ngx_file_info() and test uniq if file is already open
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parents:
2063
diff
changeset
|
713 goto done; |
| 1453 | 714 } |
| 715 } | |
| 716 | |
| 2072 | 717 if (!of->log) { |
|
3497
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
Igor Sysoev <igor@sysoev.ru>
parents:
3178
diff
changeset
|
718 |
|
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
Igor Sysoev <igor@sysoev.ru>
parents:
3178
diff
changeset
|
719 /* |
|
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
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parents:
3178
diff
changeset
|
720 * Use non-blocking open() not to hang on FIFO files, etc. |
|
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
Igor Sysoev <igor@sysoev.ru>
parents:
3178
diff
changeset
|
721 * This flag has no effect on a regular files. |
|
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
Igor Sysoev <igor@sysoev.ru>
parents:
3178
diff
changeset
|
722 */ |
|
ac281bc4c187
use non-blocking open() not to hang on FIFO files, etc.
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parents:
3178
diff
changeset
|
723 |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
724 fd = ngx_open_file_wrapper(name, of, NGX_FILE_RDONLY|NGX_FILE_NONBLOCK, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
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diff
changeset
|
725 NGX_FILE_OPEN, 0); |
| 2072 | 726 |
| 727 } else { | |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
728 fd = ngx_open_file_wrapper(name, of, NGX_FILE_APPEND, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
729 NGX_FILE_CREATE_OR_OPEN, |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
730 NGX_FILE_DEFAULT_ACCESS); |
| 2072 | 731 } |
| 1453 | 732 |
| 733 if (fd == NGX_INVALID_FILE) { | |
|
4477
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
734 of->fd = NGX_INVALID_FILE; |
|
7033faf6dc3c
Added disable_symlinks directive.
Andrey Belov <defan@nginx.com>
parents:
4476
diff
changeset
|
735 return NGX_ERROR; |
| 1453 | 736 } |
| 737 | |
| 738 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) { | |
| 739 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
740 ngx_fd_info_n " \"%V\" failed", name); |
| 1453 | 741 |
| 742 if (ngx_close_file(fd) == NGX_FILE_ERROR) { | |
| 743 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
744 ngx_close_file_n " \"%V\" failed", name); |
| 1453 | 745 } |
| 746 | |
|
2069
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
747 of->fd = NGX_INVALID_FILE; |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
748 |
| 1453 | 749 return NGX_ERROR; |
| 750 } | |
| 751 | |
| 752 if (ngx_is_dir(&fi)) { | |
| 753 if (ngx_close_file(fd) == NGX_FILE_ERROR) { | |
| 754 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
755 ngx_close_file_n " \"%V\" failed", name); |
| 1453 | 756 } |
| 757 | |
|
2069
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
758 of->fd = NGX_INVALID_FILE; |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
759 |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
760 } else { |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
761 of->fd = fd; |
| 2129 | 762 |
| 3178 | 763 if (of->read_ahead && ngx_file_size(&fi) > NGX_MIN_READ_AHEAD) { |
| 764 if (ngx_read_ahead(fd, of->read_ahead) == NGX_ERROR) { | |
| 765 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
766 ngx_read_ahead_n " \"%V\" failed", name); |
| 3178 | 767 } |
| 768 } | |
| 769 | |
| 2129 | 770 if (of->directio <= ngx_file_size(&fi)) { |
|
3164
b1b1775698d5
uniform ngx_directio_on/off() interface with other file functions
Igor Sysoev <igor@sysoev.ru>
parents:
2934
diff
changeset
|
771 if (ngx_directio_on(fd) == NGX_FILE_ERROR) { |
| 2129 | 772 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
|
4476
94ef9d25ec5b
Changed ngx_open_and_stat_file() to use ngx_str_t.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
773 ngx_directio_on_n " \"%V\" failed", name); |
|
2231
8564129d49b6
*) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents:
2129
diff
changeset
|
774 |
|
8564129d49b6
*) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents:
2129
diff
changeset
|
775 } else { |
|
8564129d49b6
*) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents:
2129
diff
changeset
|
776 of->is_directio = 1; |
| 2129 | 777 } |
| 778 } | |
| 1453 | 779 } |
| 780 | |
|
2069
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
781 done: |
|
23930ccd2642
use ngx_file_info() and test uniq if file is already open
Igor Sysoev <igor@sysoev.ru>
parents:
2063
diff
changeset
|
782 |
| 1453 | 783 of->uniq = ngx_file_uniq(&fi); |
| 784 of->mtime = ngx_file_mtime(&fi); | |
| 785 of->size = ngx_file_size(&fi); | |
|
3899
e7cd13b7f759
Use more precise stat.st_blocks to account cache size on Unix
Igor Sysoev <igor@sysoev.ru>
parents:
3497
diff
changeset
|
786 of->fs_size = ngx_file_fs_size(&fi); |
| 1453 | 787 of->is_dir = ngx_is_dir(&fi); |
| 788 of->is_file = ngx_is_file(&fi); | |
| 789 of->is_link = ngx_is_link(&fi); | |
| 790 of->is_exec = ngx_is_exec(&fi); | |
| 791 | |
| 792 return NGX_OK; | |
| 793 } | |
| 794 | |
| 795 | |
| 1775 | 796 /* |
| 797 * we ignore any possible event setting error and | |
| 798 * fallback to usual periodic file retests | |
| 799 */ | |
| 800 | |
| 801 static void | |
| 802 ngx_open_file_add_event(ngx_open_file_cache_t *cache, | |
| 803 ngx_cached_open_file_t *file, ngx_open_file_info_t *of, ngx_log_t *log) | |
| 804 { | |
| 805 ngx_open_file_cache_event_t *fev; | |
| 806 | |
| 807 if (!(ngx_event_flags & NGX_USE_VNODE_EVENT) | |
| 808 || !of->events | |
| 809 || file->event | |
| 810 || of->fd == NGX_INVALID_FILE | |
| 811 || file->uses < of->min_uses) | |
| 812 { | |
| 813 return; | |
| 814 } | |
| 815 | |
| 2070 | 816 file->use_event = 0; |
| 817 | |
| 1775 | 818 file->event = ngx_calloc(sizeof(ngx_event_t), log); |
| 819 if (file->event== NULL) { | |
| 820 return; | |
| 821 } | |
| 822 | |
| 823 fev = ngx_alloc(sizeof(ngx_open_file_cache_event_t), log); | |
| 824 if (fev == NULL) { | |
| 825 ngx_free(file->event); | |
| 826 file->event = NULL; | |
| 827 return; | |
| 828 } | |
| 829 | |
| 830 fev->fd = of->fd; | |
| 831 fev->file = file; | |
| 832 fev->cache = cache; | |
| 833 | |
| 834 file->event->handler = ngx_open_file_cache_remove; | |
| 835 file->event->data = fev; | |
| 836 | |
| 837 /* | |
| 838 * although vnode event may be called while ngx_cycle->poll | |
| 839 * destruction, however, cleanup procedures are run before any | |
| 840 * memory freeing and events will be canceled. | |
| 841 */ | |
| 842 | |
| 843 file->event->log = ngx_cycle->log; | |
| 844 | |
| 845 if (ngx_add_event(file->event, NGX_VNODE_EVENT, NGX_ONESHOT_EVENT) | |
| 846 != NGX_OK) | |
| 847 { | |
| 848 ngx_free(file->event->data); | |
| 849 ngx_free(file->event); | |
| 850 file->event = NULL; | |
| 851 return; | |
| 852 } | |
| 853 | |
| 854 /* | |
| 2071 | 855 * we do not set file->use_event here because there may be a race |
| 856 * condition: a file may be deleted between opening the file and | |
| 857 * adding event, so we rely upon event notification only after | |
| 858 * one file revalidation on next file access | |
| 1775 | 859 */ |
| 860 | |
| 861 return; | |
| 862 } | |
| 863 | |
| 864 | |
| 1453 | 865 static void |
| 866 ngx_open_file_cleanup(void *data) | |
| 867 { | |
| 868 ngx_open_file_cache_cleanup_t *c = data; | |
| 869 | |
| 870 c->file->count--; | |
| 871 | |
| 1772 | 872 ngx_close_cached_file(c->cache, c->file, c->min_uses, c->log); |
| 1453 | 873 |
| 874 /* drop one or two expired open files */ | |
| 875 ngx_expire_old_cached_files(c->cache, 1, c->log); | |
| 876 } | |
| 877 | |
| 878 | |
| 879 static void | |
| 880 ngx_close_cached_file(ngx_open_file_cache_t *cache, | |
| 1772 | 881 ngx_cached_open_file_t *file, ngx_uint_t min_uses, ngx_log_t *log) |
| 1453 | 882 { |
| 1772 | 883 ngx_log_debug5(NGX_LOG_DEBUG_CORE, log, 0, |
| 884 "close cached open file: %s, fd:%d, c:%d, u:%d, %d", | |
| 885 file->name, file->fd, file->count, file->uses, file->close); | |
| 1453 | 886 |
| 887 if (!file->close) { | |
| 888 | |
| 889 file->accessed = ngx_time(); | |
| 890 | |
| 1765 | 891 ngx_queue_remove(&file->queue); |
| 1453 | 892 |
| 1765 | 893 ngx_queue_insert_head(&cache->expire_queue, &file->queue); |
| 1453 | 894 |
| 1772 | 895 if (file->uses >= min_uses || file->count) { |
| 896 return; | |
| 897 } | |
| 1453 | 898 } |
| 899 | |
| 1775 | 900 ngx_open_file_del_event(file); |
| 1453 | 901 |
| 902 if (file->count) { | |
| 903 return; | |
| 904 } | |
| 905 | |
| 1772 | 906 if (file->fd != NGX_INVALID_FILE) { |
| 907 | |
| 908 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { | |
| 909 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 910 ngx_close_file_n " \"%s\" failed", file->name); | |
| 911 } | |
| 912 | |
| 913 file->fd = NGX_INVALID_FILE; | |
| 914 } | |
| 915 | |
| 916 if (!file->close) { | |
| 917 return; | |
| 1453 | 918 } |
| 919 | |
| 920 ngx_free(file->name); | |
| 921 ngx_free(file); | |
| 922 } | |
| 923 | |
| 924 | |
| 925 static void | |
| 1775 | 926 ngx_open_file_del_event(ngx_cached_open_file_t *file) |
| 927 { | |
| 928 if (file->event == NULL) { | |
| 929 return; | |
| 930 } | |
| 931 | |
| 932 (void) ngx_del_event(file->event, NGX_VNODE_EVENT, | |
| 933 file->count ? NGX_FLUSH_EVENT : NGX_CLOSE_EVENT); | |
| 934 | |
| 935 ngx_free(file->event->data); | |
| 936 ngx_free(file->event); | |
| 937 file->event = NULL; | |
| 938 file->use_event = 0; | |
| 939 } | |
| 940 | |
| 941 | |
| 942 static void | |
| 1453 | 943 ngx_expire_old_cached_files(ngx_open_file_cache_t *cache, ngx_uint_t n, |
| 944 ngx_log_t *log) | |
| 945 { | |
| 946 time_t now; | |
| 1765 | 947 ngx_queue_t *q; |
| 1453 | 948 ngx_cached_open_file_t *file; |
| 949 | |
| 950 now = ngx_time(); | |
| 951 | |
| 952 /* | |
| 953 * n == 1 deletes one or two inactive files | |
| 954 * n == 0 deletes least recently used file by force | |
| 955 * and one or two inactive files | |
| 956 */ | |
| 957 | |
| 958 while (n < 3) { | |
| 959 | |
| 1765 | 960 if (ngx_queue_empty(&cache->expire_queue)) { |
| 1453 | 961 return; |
| 962 } | |
| 963 | |
| 1765 | 964 q = ngx_queue_last(&cache->expire_queue); |
| 965 | |
| 966 file = ngx_queue_data(q, ngx_cached_open_file_t, queue); | |
| 967 | |
| 1453 | 968 if (n++ != 0 && now - file->accessed <= cache->inactive) { |
| 969 return; | |
| 970 } | |
| 971 | |
| 1765 | 972 ngx_queue_remove(q); |
| 1453 | 973 |
| 974 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
| 975 | |
| 976 cache->current--; | |
| 977 | |
| 978 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
| 979 "expire cached open file: %s", file->name); | |
| 980 | |
| 981 if (!file->err && !file->is_dir) { | |
| 982 file->close = 1; | |
| 1772 | 983 ngx_close_cached_file(cache, file, 0, log); |
| 1453 | 984 |
| 985 } else { | |
| 986 ngx_free(file->name); | |
| 987 ngx_free(file); | |
| 988 } | |
| 989 } | |
| 990 } | |
| 991 | |
| 992 | |
| 993 static void | |
| 994 ngx_open_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp, | |
| 995 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
| 996 { | |
| 997 ngx_rbtree_node_t **p; | |
| 998 ngx_cached_open_file_t *file, *file_temp; | |
| 999 | |
| 1000 for ( ;; ) { | |
| 1001 | |
| 1002 if (node->key < temp->key) { | |
| 1003 | |
| 1004 p = &temp->left; | |
| 1005 | |
| 1006 } else if (node->key > temp->key) { | |
| 1007 | |
| 1008 p = &temp->right; | |
| 1009 | |
| 1010 } else { /* node->key == temp->key */ | |
| 1011 | |
| 1012 file = (ngx_cached_open_file_t *) node; | |
| 1013 file_temp = (ngx_cached_open_file_t *) temp; | |
| 1014 | |
| 1015 p = (ngx_strcmp(file->name, file_temp->name) < 0) | |
| 1016 ? &temp->left : &temp->right; | |
| 1017 } | |
| 1018 | |
| 1019 if (*p == sentinel) { | |
| 1020 break; | |
| 1021 } | |
| 1022 | |
| 1023 temp = *p; | |
| 1024 } | |
| 1025 | |
| 1026 *p = node; | |
| 1027 node->parent = temp; | |
| 1028 node->left = sentinel; | |
| 1029 node->right = sentinel; | |
| 1030 ngx_rbt_red(node); | |
| 1031 } | |
| 1032 | |
| 1033 | |
| 1775 | 1034 static ngx_cached_open_file_t * |
| 1035 ngx_open_file_lookup(ngx_open_file_cache_t *cache, ngx_str_t *name, | |
| 1036 uint32_t hash) | |
| 1037 { | |
| 1038 ngx_int_t rc; | |
| 1039 ngx_rbtree_node_t *node, *sentinel; | |
| 1040 ngx_cached_open_file_t *file; | |
| 1041 | |
| 1042 node = cache->rbtree.root; | |
| 1043 sentinel = cache->rbtree.sentinel; | |
| 1044 | |
| 1045 while (node != sentinel) { | |
| 1046 | |
| 1047 if (hash < node->key) { | |
| 1048 node = node->left; | |
| 1049 continue; | |
| 1050 } | |
| 1051 | |
| 1052 if (hash > node->key) { | |
| 1053 node = node->right; | |
| 1054 continue; | |
| 1055 } | |
| 1056 | |
| 1057 /* hash == node->key */ | |
| 1058 | |
| 1059 do { | |
| 1060 file = (ngx_cached_open_file_t *) node; | |
| 1061 | |
| 1062 rc = ngx_strcmp(name->data, file->name); | |
| 1063 | |
| 1064 if (rc == 0) { | |
| 1065 return file; | |
| 1066 } | |
| 1067 | |
| 1068 node = (rc < 0) ? node->left : node->right; | |
| 1069 | |
| 1070 } while (node != sentinel && hash == node->key); | |
| 1071 | |
| 1072 break; | |
| 1073 } | |
| 1074 | |
| 1075 return NULL; | |
| 1076 } | |
| 1077 | |
| 1078 | |
| 1453 | 1079 static void |
| 1080 ngx_open_file_cache_remove(ngx_event_t *ev) | |
| 1081 { | |
| 1082 ngx_cached_open_file_t *file; | |
| 1083 ngx_open_file_cache_event_t *fev; | |
| 1084 | |
| 1085 fev = ev->data; | |
| 1086 file = fev->file; | |
| 1087 | |
| 1765 | 1088 ngx_queue_remove(&file->queue); |
| 1453 | 1089 |
| 1090 ngx_rbtree_delete(&fev->cache->rbtree, &file->node); | |
| 1091 | |
| 1092 fev->cache->current--; | |
| 1093 | |
| 1094 /* NGX_ONESHOT_EVENT was already deleted */ | |
| 1095 file->event = NULL; | |
| 2070 | 1096 file->use_event = 0; |
| 1453 | 1097 |
| 1098 file->close = 1; | |
| 1099 | |
| 1772 | 1100 ngx_close_cached_file(fev->cache, file, 0, ev->log); |
| 1453 | 1101 |
| 1102 /* free memory only when fev->cache and fev->file are already not needed */ | |
| 1103 | |
| 1104 ngx_free(ev->data); | |
| 1105 ngx_free(ev); | |
| 1106 } |