2 $Id: ea.c,v 1.11 2009-10-23 14:49:30 franklahm Exp $
3 Copyright (c) 2009 Frank Lahm <franklahm@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
18 #endif /* HAVE_CONFIG_H */
25 #include <sys/types.h>
30 #include <atalk/adouble.h>
32 #include <atalk/afp.h>
33 #include <atalk/logger.h>
34 #include <atalk/volume.h>
35 #include <atalk/vfs.h>
36 #include <atalk/util.h>
37 #include <atalk/unix.h>
40 * Store Extended Attributes inside .AppleDouble folders as follows:
42 * filename "fileWithEAs" with EAs "testEA1" and "testEA2"
44 * - create header with with the format struct adouble_ea_ondisk, the file is written to
45 * ".AppleDouble/fileWithEAs::EA"
46 * - store EAs in files "fileWithEAs::EA::testEA1" and "fileWithEAs::EA::testEA2"
50 * Build mode for EA header from file mode
52 static inline mode_t ea_header_mode(mode_t mode)
54 /* Same as ad_hf_mode(mode) */
55 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
56 /* Owner must be able to open, read and w-lock it, in order to chmod from eg 0000 -> 0xxxx*/
57 mode |= S_IRUSR | S_IWUSR;
62 * Build mode for EA file from file mode
64 static inline mode_t ea_mode(mode_t mode)
66 /* Same as ad_hf_mode(mode) */
67 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
72 Taken form afpd/desktop.c
74 static char *mtoupath(const struct vol *vol, const char *mpath)
76 static char upath[ MAXPATHLEN + 2]; /* for convert_charset dest_len parameter +2 */
81 uint16_t flags = CONV_ESCAPEHEX;
86 if ( *mpath == '\0' ) {
96 if ((size_t)-1 == (outlen = convert_charset(CH_UTF8_MAC,
99 m, inplen, u, outlen, &flags)) ) {
108 * Function: unpack_header
110 * Purpose: unpack and verify header file data buffer at ea->ea_data into struct ea
114 * ea (rw) handle to struct ea
116 * Returns: 0 on success, -1 on error
120 * Verifies magic and version.
122 static int unpack_header(struct ea * restrict ea)
124 int ret = 0, count = 0;
128 /* Check magic and version */
130 if (*(uint32_t *)buf != htonl(EA_MAGIC)) {
131 LOG(log_error, logtype_afpd, "unpack_header: wrong magic 0x%08x", *(uint32_t *)buf);
136 if (*(uint16_t *)buf != htons(EA_VERSION)) {
137 LOG(log_error, logtype_afpd, "unpack_header: wrong version 0x%04x", *(uint16_t *)buf);
144 ea->ea_count = ntohs(*(uint16_t *)buf);
145 LOG(log_debug, logtype_afpd, "unpack_header: number of EAs: %u", ea->ea_count);
148 if (ea->ea_count == 0)
151 /* Allocate storage for the ea_entries array */
152 ea->ea_entries = malloc(sizeof(struct ea_entry) * ea->ea_count);
153 if ( ! ea->ea_entries) {
154 LOG(log_error, logtype_afpd, "unpack_header: OOM");
159 buf = ea->ea_data + EA_HEADER_SIZE;
160 while (count < ea->ea_count) {
161 memcpy(&uint32, buf, 4); /* EA size */
163 (*(ea->ea_entries))[count].ea_size = ntohl(uint32);
164 (*(ea->ea_entries))[count].ea_name = strdup(buf);
165 if (! (*(ea->ea_entries))[count].ea_name) {
166 LOG(log_error, logtype_afpd, "unpack_header: OOM");
170 (*(ea->ea_entries))[count].ea_namelen = strlen((*(ea->ea_entries))[count].ea_name);
171 buf += (*(ea->ea_entries))[count].ea_namelen + 1;
173 LOG(log_maxdebug, logtype_afpd, "unpack_header: entry no:%u,\"%s\", size: %u, namelen: %u", count,
174 (*(ea->ea_entries))[count].ea_name,
175 (*(ea->ea_entries))[count].ea_size,
176 (*(ea->ea_entries))[count].ea_namelen);
186 * Function: pack_header
188 * Purpose: pack everything from struct ea into buffer at ea->ea_data
192 * ea (rw) handle to struct ea
194 * Returns: 0 on success, -1 on error
198 * adjust ea->ea_count in case an ea entry deletetion is detected
200 static int pack_header(struct ea * restrict ea)
202 int count = 0, eacount = 0;
205 size_t bufsize = EA_HEADER_SIZE;
207 char *buf = ea->ea_data + EA_HEADER_SIZE;
209 LOG(log_debug, logtype_afpd, "pack_header('%s'): ea_count: %u, ea_size: %u",
210 ea->filename, ea->ea_count, ea->ea_size);
212 if (ea->ea_count == 0)
213 /* nothing to do, magic, version and count are still valid in buffer */
216 while(count < ea->ea_count) { /* the names */
217 /* Check if its a deleted entry */
218 if ( ! ((*ea->ea_entries)[count].ea_name)) {
223 bufsize += (*(ea->ea_entries))[count].ea_namelen + 1;
228 bufsize += (eacount * 4); /* header + ea_size for each EA */
229 if (bufsize > ea->ea_size) {
230 /* we must realloc */
231 if ( ! (buf = realloc(ea->ea_data, bufsize)) ) {
232 LOG(log_error, logtype_afpd, "pack_header: OOM");
237 ea->ea_size = bufsize;
240 uint16 = htons(eacount);
241 memcpy(ea->ea_data + EA_COUNT_OFF, &uint16, 2);
244 buf = ea->ea_data + EA_HEADER_SIZE;
245 while (count < ea->ea_count) {
246 /* Check if its a deleted entry */
247 if ( ! ((*ea->ea_entries)[count].ea_name)) {
253 uint32 = htonl((*(ea->ea_entries))[count].ea_size);
254 memcpy(buf, &uint32, 4);
257 /* Second: EA name as C-string */
258 strcpy(buf, (*(ea->ea_entries))[count].ea_name);
259 buf += (*(ea->ea_entries))[count].ea_namelen + 1;
261 LOG(log_maxdebug, logtype_afpd, "pack_header: entry no:%u,\"%s\", size: %u, namelen: %u", count,
262 (*(ea->ea_entries))[count].ea_name,
263 (*(ea->ea_entries))[count].ea_size,
264 (*(ea->ea_entries))[count].ea_namelen);
269 ea->ea_count = eacount;
271 LOG(log_debug, logtype_afpd, "pack_header('%s'): ea_count: %u, ea_size: %u",
272 ea->filename, ea->ea_count, ea->ea_size);
280 * Purpose: return name of ea header filename
285 * eaname (r) name of EA or NULL
287 * Returns: pointer to name in static buffer, NULL on error
291 * Calls ad_open, copies buffer, appends "::EA" and if supplied append eanme
292 * Files: "file" -> "file/.AppleDouble/file::EA"
293 * Dirs: "dir" -> "dir/.AppleDouble/.Parent::EA"
294 * "file" with EA "myEA" -> "file/.AppleDouble/file::EA:myEA"
296 static char * ea_path(const struct ea * restrict ea,
297 const char * restrict eaname)
300 static char pathbuf[MAXPATHLEN + 1];
302 /* get name of a adouble file from uname */
303 adname = ea->vol->vfs->ad_path(ea->filename, (ea->ea_flags & EA_DIR) ? ADFLAGS_DIR : 0);
304 /* copy it so we can work with it */
305 strlcpy(pathbuf, adname, MAXPATHLEN + 1);
307 strlcat(pathbuf, "::EA", MAXPATHLEN + 1);
310 strlcat(pathbuf, "::", MAXPATHLEN + 1);
311 if ((eaname = mtoupath(ea->vol, eaname)) == NULL)
313 strlcat(pathbuf, eaname, MAXPATHLEN + 1);
320 * Function: ea_addentry
322 * Purpose: add one EA into ea->ea_entries[]
326 * ea (rw) pointer to struct ea
327 * attruname (r) name of EA
328 * attrsize (r) size of ea
329 * bitmap (r) bitmap from FP func
331 * Returns: new number of EA entries, -1 on error
335 * Grow array ea->ea_entries[]. If ea->ea_entries is still NULL, start allocating.
336 * Otherwise realloc and put entry at the end. Increments ea->ea_count.
338 static int ea_addentry(struct ea * restrict ea,
339 const char * restrict attruname,
346 /* First check if an EA of the requested name already exist */
347 if (ea->ea_count > 0) {
348 while (count < ea->ea_count) {
349 if (strcmp(attruname, (*ea->ea_entries)[count].ea_name) == 0) {
350 LOG(log_debug, logtype_afpd, "ea_addentry('%s'): exists", attruname);
351 if (bitmap & kXAttrCreate)
352 /* its like O_CREAT|O_EXCL -> fail */
354 if ( ! (bitmap & kXAttrReplace))
355 /* replace was not requested, then its an error */
363 if (ea->ea_count == 0) {
364 ea->ea_entries = malloc(sizeof(struct ea_entry));
365 if ( ! ea->ea_entries) {
366 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
370 tmprealloc = realloc(ea->ea_entries, sizeof(struct ea_entry) * (ea->ea_count + 1));
372 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
375 ea->ea_entries = tmprealloc;
378 /* We've grown the array, now store the entry */
379 (*(ea->ea_entries))[ea->ea_count].ea_size = attrsize;
380 (*(ea->ea_entries))[ea->ea_count].ea_name = strdup(attruname);
381 if ( ! (*(ea->ea_entries))[ea->ea_count].ea_name) {
382 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
385 (*(ea->ea_entries))[ea->ea_count].ea_namelen = strlen(attruname);
391 if (ea->ea_count == 0 && ea->ea_entries) {
392 /* We just allocated storage but had an error somewhere -> free storage*/
393 free(ea->ea_entries);
394 ea->ea_entries = NULL;
401 * Function: ea_delentry
403 * Purpose: delete one EA from ea->ea_entries[]
407 * ea (rw) pointer to struct ea
408 * attruname (r) EA name
410 * Returns: new number of EA entries, -1 on error
414 * Remove entry from ea->ea_entries[]. Decrement ea->ea_count.
415 * Marks it as unused just by freeing name and setting it to NULL.
416 * ea_close and pack_buffer must honor this.
418 static int ea_delentry(struct ea * restrict ea,
419 const char * restrict attruname)
421 int ret = 0, count = 0;
423 if (ea->ea_count == 0) {
424 LOG(log_error, logtype_afpd, "ea_delentry('%s'): illegal ea_count of 0 on deletion");
428 while (count < ea->ea_count) {
429 /* search matching EA */
430 if (strcmp(attruname, (*ea->ea_entries)[count].ea_name) == 0) {
431 free((*ea->ea_entries)[count].ea_name);
432 (*ea->ea_entries)[count].ea_name = NULL;
434 LOG(log_debug, logtype_afpd, "ea_delentry('%s'): deleted no %u/%u",
435 attruname, count + 1, ea->ea_count);
446 * Function: create_ea_header
448 * Purpose: create EA header file, only called from ea_open
452 * uname (r) filename for which we have to create a header
453 * ea (rw) ea handle with already allocated storage pointed to
456 * Returns: fd of open header file on success, -1 on error, errno semantics:
457 * EEXIST: open with O_CREAT | O_EXCL failed
461 * Creates EA header file and initialize ea->ea_data buffer.
462 * Possibe race condition with other afpd processes:
463 * we were called because header file didn't exist in eg. ea_open. We then
464 * try to create a file with O_CREAT | O_EXCL, but the whole process in not atomic.
465 * What do we do then? Someone else is in the process of creating the header too, but
466 * it might not have finished it. That means we cant just open, read and use it!
467 * We therefor currently just break with an error.
468 * On return the header file is still r/w locked.
470 static int create_ea_header(const char * restrict uname,
471 struct ea * restrict ea)
473 int fd = -1, err = 0;
476 if ((fd = open(uname, O_RDWR | O_CREAT | O_EXCL, 0666 & ~ea->vol->v_umask)) == -1) {
477 LOG(log_error, logtype_afpd, "ea_create: open race condition with ea header for file: %s", uname);
482 if ((write_lock(fd, 0, SEEK_SET, 0)) != 0) {
483 LOG(log_error, logtype_afpd, "ea_create: lock race condition with ea header for file: %s", uname);
490 *(uint32_t *)ptr = htonl(EA_MAGIC);
492 *(uint16_t *)ptr = htons(EA_VERSION);
493 ptr += EA_VERSION_LEN;
494 *(uint16_t *)ptr = 0; /* count */
496 ea->ea_size = EA_HEADER_SIZE;
497 ea->ea_inited = EA_INITED;
510 * Purpose: write an EA to disk
514 * ea (r) struct ea handle
515 * attruname (r) EA name
516 * ibuf (r) buffer with EA content
517 * attrsize (r) size of EA
519 * Returns: 0 on success, -1 on error
523 * Creates/overwrites EA file.
526 static int write_ea(const struct ea * restrict ea,
527 const char * restrict attruname,
528 const char * restrict ibuf,
531 int fd = -1, ret = AFP_OK;
535 if ((eaname = ea_path(ea, attruname)) == NULL) {
536 LOG(log_error, logtype_afpd, "write_ea('%s'): ea_path error", attruname);
540 LOG(log_maxdebug, logtype_afpd, "write_ea('%s')", eaname);
542 /* Check if it exists, remove if yes*/
543 if ((stat(eaname, &st)) == 0) {
544 if ((unlink(eaname)) != 0) {
546 return AFPERR_ACCESS;
552 if ((fd = open(eaname, O_RDWR | O_CREAT | O_EXCL, 0666 & ~ea->vol->v_umask)) == -1) {
553 LOG(log_error, logtype_afpd, "write_ea: open race condition: %s", eaname);
558 if ((write_lock(fd, 0, SEEK_SET, 0)) != 0) {
559 LOG(log_error, logtype_afpd, "write_ea: open race condition: %s", eaname);
564 if ((write(fd, ibuf, attrsize)) != attrsize) {
565 LOG(log_error, logtype_afpd, "write_ea('%s'): write: %s", eaname, strerror(errno));
572 close(fd); /* and unlock */
577 * Function: delete_ea_file
579 * Purpose: delete EA file from disk
583 * ea (r) struct ea handle
584 * attruname (r) EA name
586 * Returns: 0 on success, -1 on error
588 static int delete_ea_file(const struct ea * restrict ea,
595 if ((eafile = ea_path(ea, eaname)) == NULL) {
596 LOG(log_error, logtype_afpd, "delete_ea_file('%s'): ea_path error", eaname);
600 /* Check if it exists, remove if yes*/
601 if ((stat(eafile, &st)) == 0) {
602 if ((unlink(eafile)) != 0) {
603 LOG(log_error, logtype_afpd, "delete_ea_file('%s'): unlink: %s",
604 eafile, strerror(errno));
607 LOG(log_debug, logtype_afpd, "delete_ea_file('%s'): success", eafile);
616 * Purpose: open EA header file, create if it doesnt exits and called with O_CREATE
620 * vol (r) current volume
621 * uname (r) filename for which we have to open a header
622 * flags (r) EA_CREATE: create if it doesn't exist (without it won't be created)
623 * EA_RDONLY: open read only
624 * EA_RDWR: open read/write
625 * Eiterh EA_RDONLY or EA_RDWR MUST be requested
626 * ea (w) pointer to a struct ea that we fill
628 * Returns: 0 on success, -1 on error
632 * opens header file and stores fd in ea->ea_fd. Size of file is put into ea->ea_size.
633 * number of EAs is stored in ea->ea_count. flags are remembered in ea->ea_flags.
634 * file is either read or write locked depending on the open flags.
635 * When you're done with struct ea you must call ea_close on it.
637 static int ea_open(const struct vol * restrict vol,
638 const char * restrict uname,
640 struct ea * restrict ea)
646 /* Enforce usage rules! */
647 if ( ! (eaflags & (EA_RDONLY | EA_RDWR))) {
648 LOG(log_error, logtype_afpd, "ea_open: called without EA_RDONLY | EA_RDWR", uname);
652 /* Set it all to 0 */
653 memset(ea, 0, sizeof(struct ea));
655 ea->vol = vol; /* ea_close needs it */
656 ea->ea_flags = eaflags;
657 /* Dont check for errors, eg when removing the file is already gone */
659 if (S_ISDIR(st.st_mode))
660 ea->ea_flags |= EA_DIR;
662 if ( ! (ea->filename = strdup(uname))) {
663 LOG(log_error, logtype_afpd, "ea_open: OOM");
667 eaname = ea_path(ea, NULL);
668 LOG(log_maxdebug, logtype_afpd, "ea_open: ea_path: %s", eaname);
670 /* Check if it exists, if not create it if EA_CREATE is in eaflags */
671 if ((stat(eaname, &st)) != 0) {
672 if (errno == ENOENT) {
674 /* It doesnt exist */
676 if ( ! (eaflags & EA_CREATE)) {
677 /* creation was not requested, so return with error */
682 /* Now create a header file */
684 /* malloc buffer for minimal on disk data */
685 ea->ea_data = malloc(EA_HEADER_SIZE);
687 LOG(log_error, logtype_afpd, "ea_open: OOM");
693 ea->ea_fd = create_ea_header(eaname, ea);
694 if (ea->ea_fd == -1) {
701 } else {/* errno != ENOENT */
707 /* header file exists, so read and parse it */
709 /* malloc buffer where we read disk file into */
710 ea->ea_size = st.st_size;
711 ea->ea_data = malloc(st.st_size);
713 LOG(log_error, logtype_afpd, "ea_open: OOM");
718 /* Now lock, open and read header file from disk */
719 if ((ea->ea_fd = open(eaname, (ea->ea_flags & EA_RDWR) ? O_RDWR : O_RDONLY)) == -1) {
720 LOG(log_error, logtype_afpd, "ea_open('%s'): error: %s", eaname, strerror(errno));
726 if (ea->ea_flags & EA_RDONLY) {
728 if ((read_lock(ea->ea_fd, 0, SEEK_SET, 0)) != 0) {
729 LOG(log_error, logtype_afpd, "ea_open: lock error on header: %s", eaname);
733 } else { /* EA_RDWR */
735 if ((write_lock(ea->ea_fd, 0, SEEK_SET, 0)) != 0) {
736 LOG(log_error, logtype_afpd, "ea_open: lock error on header: %s", eaname);
743 if ((read(ea->ea_fd, ea->ea_data, ea->ea_size)) != ea->ea_size) {
744 LOG(log_error, logtype_afpd, "ea_open: short read on header: %s", eaname);
749 if ((unpack_header(ea)) != 0) {
750 LOG(log_error, logtype_afpd, "ea_open: error unpacking header for: %s", eaname);
757 ea->ea_inited = EA_INITED;
775 * Purpose: flushes and closes an ea handle
779 * ea (rw) pointer to ea handle
781 * Returns: 0 on success, -1 on error
785 * Flushes and then closes and frees all resouces held by ea handle.
786 * Pack data in ea into ea_data, then write ea_data to disk
788 static int ea_close(struct ea * restrict ea)
790 int ret = 0, count = 0;
794 LOG(log_debug, logtype_afpd, "ea_close('%s')", ea->filename);
796 if (ea->ea_inited != EA_INITED) {
797 LOG(log_warning, logtype_afpd, "ea_close('%s'): non initialized ea", ea->filename);
801 /* pack header and write it to disk if it was opened EA_RDWR*/
802 if (ea->ea_flags & EA_RDWR) {
803 if ((pack_header(ea)) != 0) {
804 LOG(log_error, logtype_afpd, "ea_close: pack header");
807 if (ea->ea_count == 0) {
808 /* Check if EA header exists and remove it */
809 eaname = ea_path(ea, NULL);
810 if ((stat(eaname, &st)) == 0) {
811 if ((unlink(eaname)) != 0) {
812 LOG(log_error, logtype_afpd, "ea_close('%s'): unlink: %s",
813 eaname, strerror(errno));
817 LOG(log_debug, logtype_afpd, "ea_close(unlink '%s'): success", eaname);
820 if (errno != ENOENT) {
821 LOG(log_error, logtype_afpd, "ea_close('%s'): stat: %s",
822 eaname, strerror(errno));
826 } else { /* ea->ea_count > 0 */
827 if ((lseek(ea->ea_fd, 0, SEEK_SET)) == -1) {
828 LOG(log_error, logtype_afpd, "ea_close: lseek: %s", strerror(errno));
833 if ((ftruncate(ea->ea_fd, 0)) == -1) {
834 LOG(log_error, logtype_afpd, "ea_close: ftruncate: %s", strerror(errno));
839 if (write(ea->ea_fd, ea->ea_data, ea->ea_size) != ea->ea_size) {
840 LOG(log_error, logtype_afpd, "ea_close: write: %s", strerror(errno));
849 while(count < ea->ea_count) {
850 if ( (*ea->ea_entries)[count].ea_name ) {
851 free((*ea->ea_entries)[count].ea_name);
852 (*ea->ea_entries)[count].ea_name = NULL;
863 if (ea->ea_entries) {
864 free(ea->ea_entries);
865 ea->ea_entries = NULL;
872 if (ea->ea_fd != -1) {
873 close(ea->ea_fd); /* also releases the fcntl lock */
882 /************************************************************************************
883 * VFS funcs called from afp_ea* funcs
884 ************************************************************************************/
887 * Function: get_easize
889 * Purpose: get size of an EA
893 * vol (r) current volume
894 * rbuf (w) DSI reply buffer
895 * rbuflen (rw) current length of data in reply buffer
897 * oflag (r) link and create flag
898 * attruname (r) name of attribute
900 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
904 * Copies EA size into rbuf in network order. Increments *rbuflen +4.
906 int get_easize(VFS_FUNC_ARGS_EA_GETSIZE)
908 int ret = AFPERR_MISC, count = 0;
912 LOG(log_debug, logtype_afpd, "get_easize: file: %s", uname);
914 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
915 LOG(log_error, logtype_afpd, "get_easize: error calling ea_open for file: %s", uname);
919 while (count < ea.ea_count) {
920 if (strcmp(attruname, (*ea.ea_entries)[count].ea_name) == 0) {
921 uint32 = htonl((*ea.ea_entries)[count].ea_size);
922 memcpy(rbuf, &uint32, 4);
926 LOG(log_debug, logtype_afpd, "get_easize(\"%s\"): size: %u",
927 attruname, (*ea.ea_entries)[count].ea_size);
933 if ((ea_close(&ea)) != 0) {
934 LOG(log_error, logtype_afpd, "get_easize: error closing ea handle for file: %s", uname);
942 * Function: get_eacontent
944 * Purpose: copy EA into rbuf
948 * vol (r) current volume
949 * rbuf (w) DSI reply buffer
950 * rbuflen (rw) current length of data in reply buffer
952 * oflag (r) link and create flag
953 * attruname (r) name of attribute
954 * maxreply (r) maximum EA size as of current specs/real-life
956 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
960 * Copies EA into rbuf. Increments *rbuflen accordingly.
962 int get_eacontent(VFS_FUNC_ARGS_EA_GETCONTENT)
964 int ret = AFPERR_MISC, count = 0, fd = -1;
970 LOG(log_debug, logtype_afpd, "get_eacontent('%s/%s')", uname, attruname);
972 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
973 LOG(log_error, logtype_afpd, "get_eacontent('%s'): ea_open error", uname);
977 while (count < ea.ea_count) {
978 if (strcmp(attruname, (*ea.ea_entries)[count].ea_name) == 0) {
979 if ( (eafile = ea_path(&ea, attruname)) == NULL) {
984 if ((fd = open(eafile, O_RDONLY)) == -1) {
989 /* Check how much the client wants, give him what we think is right */
990 maxreply -= MAX_REPLY_EXTRA_BYTES;
991 if (maxreply > MAX_EA_SIZE)
992 maxreply = MAX_EA_SIZE;
993 toread = (maxreply < (*ea.ea_entries)[count].ea_size) ? maxreply : (*ea.ea_entries)[count].ea_size;
994 LOG(log_debug, logtype_afpd, "get_eacontent('%s'): sending %u bytes", attruname, toread);
996 /* Put length of EA data in reply buffer */
997 uint32 = htonl(toread);
998 memcpy(rbuf, &uint32, 4);
1002 if ((read(fd, rbuf, toread)) != toread) {
1003 LOG(log_error, logtype_afpd, "get_eacontent('%s/%s'): short read", uname, attruname);
1016 if ((ea_close(&ea)) != 0) {
1017 LOG(log_error, logtype_afpd, "get_eacontent('%s'): error closing ea handle", uname);
1026 * Function: list_eas
1028 * Purpose: copy names of EAs into attrnamebuf
1032 * vol (r) current volume
1033 * attrnamebuf (w) store names a consecutive C strings here
1034 * buflen (rw) length of names in attrnamebuf
1035 * uname (r) filename
1036 * oflag (r) link and create flag
1038 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1042 * Copies names of all EAs of uname as consecutive C strings into rbuf.
1043 * Increments *buflen accordingly.
1045 int list_eas(VFS_FUNC_ARGS_EA_LIST)
1047 int count = 0, attrbuflen = *buflen, ret = AFP_OK, len;
1048 char *buf = attrnamebuf;
1051 LOG(log_debug, logtype_afpd, "list_eas: file: %s", uname);
1053 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
1054 if (errno != ENOENT) {
1055 LOG(log_error, logtype_afpd, "list_eas: error calling ea_open for file: %s", uname);
1062 while (count < ea.ea_count) {
1063 /* Convert name to CH_UTF8_MAC and directly store in in the reply buffer */
1064 if ( ( len = convert_string(vol->v_volcharset,
1066 (*ea.ea_entries)[count].ea_name,
1067 (*ea.ea_entries)[count].ea_namelen,
1075 /* convert_string didn't 0-terminate */
1076 attrnamebuf[attrbuflen + 255] = 0;
1078 LOG(log_debug7, logtype_afpd, "list_eas(%s): EA: %s",
1079 uname, (*ea.ea_entries)[count].ea_name);
1081 attrbuflen += len + 1;
1082 if (attrbuflen > (ATTRNAMEBUFSIZ - 256)) {
1083 /* Next EA name could overflow, so bail out with error.
1084 FIXME: evantually malloc/memcpy/realloc whatever.
1086 LOG(log_warning, logtype_afpd, "list_eas(%s): running out of buffer for EA names", uname);
1094 *buflen = attrbuflen;
1096 if ((ea_close(&ea)) != 0) {
1097 LOG(log_error, logtype_afpd, "list_eas: error closing ea handle for file: %s", uname);
1107 * Purpose: set a Solaris native EA
1111 * vol (r) current volume
1112 * uname (r) filename
1113 * attruname (r) EA name
1114 * ibuf (r) buffer with EA content
1115 * attrsize (r) length EA in ibuf
1116 * oflag (r) link and create flag
1118 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1122 * Copies names of all EAs of uname as consecutive C strings into rbuf.
1123 * Increments *rbuflen accordingly.
1125 int set_ea(VFS_FUNC_ARGS_EA_SET)
1130 LOG(log_debug, logtype_afpd, "set_ea: file: %s", uname);
1132 if ((ea_open(vol, uname, EA_CREATE | EA_RDWR, &ea)) != 0) {
1133 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_open error", uname);
1137 if ((ea_addentry(&ea, attruname, attrsize, oflag)) == -1) {
1138 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_addentry error", uname);
1143 if ((write_ea(&ea, attruname, ibuf, attrsize)) != 0) {
1144 LOG(log_error, logtype_afpd, "set_ea('%s'): write_ea error", uname);
1150 if ((ea_close(&ea)) != 0) {
1151 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_close error", uname);
1160 * Function: remove_ea
1162 * Purpose: remove a EA from a file
1166 * vol (r) current volume
1167 * uname (r) filename
1168 * attruname (r) EA name
1169 * oflag (r) link and create flag
1171 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1175 * Removes EA attruname from file uname.
1177 int remove_ea(VFS_FUNC_ARGS_EA_REMOVE)
1182 LOG(log_debug, logtype_afpd, "remove_ea('%s/%s')", uname, attruname);
1184 if ((ea_open(vol, uname, EA_RDWR, &ea)) != 0) {
1185 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_open error", uname);
1189 if ((ea_delentry(&ea, attruname)) == -1) {
1190 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_delentry error", uname);
1195 if ((delete_ea_file(&ea, attruname)) != 0) {
1196 LOG(log_error, logtype_afpd, "remove_ea('%s'): delete_ea error", uname);
1202 if ((ea_close(&ea)) != 0) {
1203 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_close error", uname);
1211 /******************************************************************************************
1212 * EA VFS funcs that deal with file/dir cp/mv/rm
1213 ******************************************************************************************/
1215 int ea_deletefile(VFS_FUNC_ARGS_DELETEFILE)
1217 LOG(log_debug, logtype_afpd, "ea_deletefile('%s')", file);
1219 int count = 0, ret = AFP_OK;
1223 if ((ea_open(vol, file, EA_RDWR, &ea)) != 0) {
1224 if (errno == ENOENT)
1225 /* no EA files, nothing to do */
1228 LOG(log_error, logtype_afpd, "ea_deletefile('%s'): error calling ea_open", file);
1233 while (count < ea.ea_count) {
1234 if ((delete_ea_file(&ea, (*ea.ea_entries)[count].ea_name)) != 0) {
1238 free((*ea.ea_entries)[count].ea_name);
1239 (*ea.ea_entries)[count].ea_name = NULL;
1243 /* ea_close removes the EA header file for us because all names are NULL */
1244 if ((ea_close(&ea)) != 0) {
1245 LOG(log_error, logtype_afpd, "ea_deletefile('%s'): error closing ea handle", file);
1252 int ea_renamefile(VFS_FUNC_ARGS_RENAMEFILE)
1257 char srceapath[ MAXPATHLEN + 1];
1264 LOG(log_debug, logtype_afpd, "ea_renamefile('%s'/'%s')", src, dst);
1268 if ((ea_open(vol, src, EA_RDWR, &srcea)) != 0) {
1269 if (errno == ENOENT)
1270 /* no EA files, nothing to do */
1273 LOG(log_error, logtype_afpd, "ea_renamefile('%s'/'%s'): ea_open error: '%s'", src, dst, src);
1278 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1279 if (errno == ENOENT) {
1280 /* Possibly the .AppleDouble folder didn't exist, we create it and try again */
1281 ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1282 if ((ad_open(dst, ADFLAGS_HF, O_RDWR | O_CREAT, 0666, &ad)) != 0) {
1283 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): ad_open error: '%s'", src, dst, dst);
1287 ad_close(&ad, ADFLAGS_HF);
1288 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1295 /* Loop through all EAs: */
1296 while (count < srcea.ea_count) {
1298 eaname = (*srcea.ea_entries)[count].ea_name;
1299 easize = (*srcea.ea_entries)[count].ea_size;
1301 /* Build src and dst paths for rename() */
1302 if ((eapath = ea_path(&srcea, eaname)) == NULL) {
1306 strcpy(srceapath, eapath);
1307 if ((eapath = ea_path(&dstea, eaname)) == NULL) {
1312 LOG(log_maxdebug, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1313 src, dst, srceapath, eapath);
1315 /* Add EA to dstea */
1316 if ((ea_addentry(&dstea, eaname, easize, 0)) == -1) {
1317 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1318 src, dst, srceapath, eapath);
1323 /* Remove EA entry from srcea */
1324 if ((ea_delentry(&srcea, eaname)) == -1) {
1325 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1326 src, dst, srceapath, eapath);
1327 ea_delentry(&dstea, eaname);
1332 /* Now rename the EA */
1333 if ((rename( srceapath, eapath)) < 0) {
1334 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1335 src, dst, srceapath, eapath);
1350 int ea_copyfile(VFS_FUNC_ARGS_COPYFILE)
1355 char srceapath[ MAXPATHLEN + 1];
1362 LOG(log_debug, logtype_afpd, "ea_copyfile('%s'/'%s')", src, dst);
1365 if ((ea_open(vol, src, EA_RDWR, &srcea)) != 0) {
1366 if (errno == ENOENT)
1367 /* no EA files, nothing to do */
1370 LOG(log_error, logtype_afpd, "ea_copyfile('%s'/'%s'): ea_open error: '%s'", src, dst, src);
1375 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1376 if (errno == ENOENT) {
1377 /* Possibly the .AppleDouble folder didn't exist, we create it and try again */
1378 ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1379 if ((ad_open(dst, ADFLAGS_HF, O_RDWR | O_CREAT, 0666, &ad)) != 0) {
1380 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): ad_open error: '%s'", src, dst, dst);
1384 ad_close(&ad, ADFLAGS_HF);
1385 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1392 /* Loop through all EAs: */
1393 while (count < srcea.ea_count) {
1395 eaname = (*srcea.ea_entries)[count].ea_name;
1396 easize = (*srcea.ea_entries)[count].ea_size;
1398 /* Build src and dst paths for copy_file() */
1399 if ((eapath = ea_path(&srcea, eaname)) == NULL) {
1403 strcpy(srceapath, eapath);
1404 if ((eapath = ea_path(&dstea, eaname)) == NULL) {
1409 LOG(log_maxdebug, logtype_afpd, "ea_copyfile('%s/%s'): copying EA '%s' to '%s'",
1410 src, dst, srceapath, eapath);
1412 /* Add EA to dstea */
1413 if ((ea_addentry(&dstea, eaname, easize, 0)) == -1) {
1414 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): ea_addentry('%s') error",
1420 /* Now copy the EA */
1421 if ((copy_file( srceapath, eapath, (0666 & ~vol->v_umask))) < 0) {
1422 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): copying EA '%s' to '%s'",
1423 src, dst, srceapath, eapath);
1437 int ea_chown(VFS_FUNC_ARGS_CHOWN)
1439 LOG(log_debug, logtype_afpd, "ea_chown('%s')", path);
1441 int count = 0, ret = AFP_OK;
1446 if ((ea_open(vol, path, EA_RDWR, &ea)) != 0) {
1447 if (errno == ENOENT)
1448 /* no EA files, nothing to do */
1451 LOG(log_error, logtype_afpd, "ea_chown('%s'): error calling ea_open", path);
1456 if ((chown(ea_path(&ea, NULL), uid, gid)) != 0) {
1460 ret = AFPERR_ACCESS;
1468 while (count < ea.ea_count) {
1469 if ((eaname = ea_path(&ea, (*ea.ea_entries)[count].ea_name)) == NULL) {
1473 if ((chown(eaname, uid, gid)) != 0) {
1477 ret = AFPERR_ACCESS;
1490 if ((ea_close(&ea)) != 0) {
1491 LOG(log_error, logtype_afpd, "ea_chown('%s'): error closing ea handle", path);
1498 int ea_chmod_file(VFS_FUNC_ARGS_SETFILEMODE)
1500 LOG(log_debug, logtype_afpd, "ea_chmod_file('%s')", name);
1502 int count = 0, ret = AFP_OK;
1507 if ((ea_open(vol, name, EA_RDWR, &ea)) != 0) {
1508 if (errno == ENOENT)
1509 /* no EA files, nothing to do */
1515 /* Set mode on EA header file */
1516 if ((setfilmode(ea_path(&ea, NULL), ea_header_mode(mode), NULL, vol->v_umask)) != 0) {
1517 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): %s", ea_path(&ea, NULL), strerror(errno));
1521 ret = AFPERR_ACCESS;
1529 /* Set mode on EA files */
1530 while (count < ea.ea_count) {
1531 if ((eaname = ea_path(&ea, (*ea.ea_entries)[count].ea_name)) == NULL) {
1535 if ((setfilmode(eaname, ea_mode(mode), NULL, vol->v_umask)) != 0) {
1536 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): %s", eaname, strerror(errno));
1540 ret = AFPERR_ACCESS;
1553 if ((ea_close(&ea)) != 0) {
1554 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): error closing ea handle", name);
1561 int ea_chmod_dir(VFS_FUNC_ARGS_SETDIRUNIXMODE)
1563 LOG(log_debug, logtype_afpd, "ea_chmod_dir('%s')", name);
1568 const char *eaname_safe = NULL;
1571 /* .AppleDouble already might be inaccesible, so we must run as id 0 */
1574 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): seteuid: %s", name, strerror(errno));
1579 if ((ea_open(vol, name, EA_RDWR, &ea)) != 0) {
1580 if (errno == ENOENT)
1581 /* no EA files, nothing to do */
1589 /* Set mode on EA header */
1590 if ((setfilmode(ea_path(&ea, NULL), ea_header_mode(mode), NULL, vol->v_umask)) != 0) {
1591 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): %s", ea_path(&ea, NULL), strerror(errno));
1595 ret = AFPERR_ACCESS;
1603 /* Set mode on EA files */
1605 while (count < ea.ea_count) {
1606 eaname = (*ea.ea_entries)[count].ea_name;
1608 * Be careful with EA names from the EA header!
1609 * Eg NFS users might have access to them, can inject paths using ../ or /.....
1611 * Until the EA code escapes / in EA name requests from the client, these therefor wont work.
1613 if ((eaname_safe = strrchr(eaname, '/'))) {
1614 LOG(log_warning, logtype_afpd, "ea_chmod_dir('%s'): contains a slash", eaname);
1615 eaname = eaname_safe;
1617 if ((eaname = ea_path(&ea, eaname)) == NULL) {
1621 if ((setfilmode(eaname, ea_mode(mode), NULL, vol->v_umask)) != 0) {
1622 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): %s", eaname, strerror(errno));
1626 ret = AFPERR_ACCESS;
1639 if (seteuid(uid) < 0) {
1640 LOG(log_error, logtype_afpd, "can't seteuid back: %s", strerror(errno));
1644 if ((ea_close(&ea)) != 0) {
1645 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): error closing ea handle", name);