2 $Id: ea.c,v 1.15 2009-11-18 08:02:33 didg 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 | CONV_FORCE;
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)
125 unsigned int count = 0;
129 /* Check magic and version */
131 if (*(uint32_t *)buf != htonl(EA_MAGIC)) {
132 LOG(log_error, logtype_afpd, "unpack_header: wrong magic 0x%08x", *(uint32_t *)buf);
137 if (*(uint16_t *)buf != htons(EA_VERSION)) {
138 LOG(log_error, logtype_afpd, "unpack_header: wrong version 0x%04x", *(uint16_t *)buf);
145 ea->ea_count = ntohs(*(uint16_t *)buf);
146 LOG(log_debug, logtype_afpd, "unpack_header: number of EAs: %u", ea->ea_count);
149 if (ea->ea_count == 0)
152 /* Allocate storage for the ea_entries array */
153 ea->ea_entries = malloc(sizeof(struct ea_entry) * ea->ea_count);
154 if ( ! ea->ea_entries) {
155 LOG(log_error, logtype_afpd, "unpack_header: OOM");
160 buf = ea->ea_data + EA_HEADER_SIZE;
161 while (count < ea->ea_count) {
162 memcpy(&uint32, buf, 4); /* EA size */
164 (*(ea->ea_entries))[count].ea_size = ntohl(uint32);
165 (*(ea->ea_entries))[count].ea_name = strdup(buf);
166 if (! (*(ea->ea_entries))[count].ea_name) {
167 LOG(log_error, logtype_afpd, "unpack_header: OOM");
171 (*(ea->ea_entries))[count].ea_namelen = strlen((*(ea->ea_entries))[count].ea_name);
172 buf += (*(ea->ea_entries))[count].ea_namelen + 1;
174 LOG(log_maxdebug, logtype_afpd, "unpack_header: entry no:%u,\"%s\", size: %u, namelen: %u", count,
175 (*(ea->ea_entries))[count].ea_name,
176 (*(ea->ea_entries))[count].ea_size,
177 (*(ea->ea_entries))[count].ea_namelen);
187 * Function: pack_header
189 * Purpose: pack everything from struct ea into buffer at ea->ea_data
193 * ea (rw) handle to struct ea
195 * Returns: 0 on success, -1 on error
199 * adjust ea->ea_count in case an ea entry deletetion is detected
201 static int pack_header(struct ea * restrict ea)
203 unsigned int count = 0, eacount = 0;
206 size_t bufsize = EA_HEADER_SIZE;
208 char *buf = ea->ea_data + EA_HEADER_SIZE;
210 LOG(log_debug, logtype_afpd, "pack_header('%s'): ea_count: %u, ea_size: %u",
211 ea->filename, ea->ea_count, ea->ea_size);
213 if (ea->ea_count == 0)
214 /* nothing to do, magic, version and count are still valid in buffer */
217 while(count < ea->ea_count) { /* the names */
218 /* Check if its a deleted entry */
219 if ( ! ((*ea->ea_entries)[count].ea_name)) {
224 bufsize += (*(ea->ea_entries))[count].ea_namelen + 1;
229 bufsize += (eacount * 4); /* header + ea_size for each EA */
230 if (bufsize > ea->ea_size) {
231 /* we must realloc */
232 if ( ! (buf = realloc(ea->ea_data, bufsize)) ) {
233 LOG(log_error, logtype_afpd, "pack_header: OOM");
238 ea->ea_size = bufsize;
241 uint16 = htons(eacount);
242 memcpy(ea->ea_data + EA_COUNT_OFF, &uint16, 2);
245 buf = ea->ea_data + EA_HEADER_SIZE;
246 while (count < ea->ea_count) {
247 /* Check if its a deleted entry */
248 if ( ! ((*ea->ea_entries)[count].ea_name)) {
254 uint32 = htonl((*(ea->ea_entries))[count].ea_size);
255 memcpy(buf, &uint32, 4);
258 /* Second: EA name as C-string */
259 strcpy(buf, (*(ea->ea_entries))[count].ea_name);
260 buf += (*(ea->ea_entries))[count].ea_namelen + 1;
262 LOG(log_maxdebug, logtype_afpd, "pack_header: entry no:%u,\"%s\", size: %u, namelen: %u", count,
263 (*(ea->ea_entries))[count].ea_name,
264 (*(ea->ea_entries))[count].ea_size,
265 (*(ea->ea_entries))[count].ea_namelen);
270 ea->ea_count = eacount;
272 LOG(log_debug, logtype_afpd, "pack_header('%s'): ea_count: %u, ea_size: %u",
273 ea->filename, ea->ea_count, ea->ea_size);
281 * Purpose: return name of ea header filename
286 * eaname (r) name of EA or NULL
288 * Returns: pointer to name in static buffer, NULL on error
292 * Calls ad_open, copies buffer, appends "::EA" and if supplied append eanme
293 * Files: "file" -> "file/.AppleDouble/file::EA"
294 * Dirs: "dir" -> "dir/.AppleDouble/.Parent::EA"
295 * "file" with EA "myEA" -> "file/.AppleDouble/file::EA:myEA"
297 static char * ea_path(const struct ea * restrict ea,
298 const char * restrict eaname)
301 static char pathbuf[MAXPATHLEN + 1];
303 /* get name of a adouble file from uname */
304 adname = ea->vol->ad_path(ea->filename, (ea->ea_flags & EA_DIR) ? ADFLAGS_DIR : 0);
305 /* copy it so we can work with it */
306 strlcpy(pathbuf, adname, MAXPATHLEN + 1);
308 strlcat(pathbuf, "::EA", MAXPATHLEN + 1);
311 strlcat(pathbuf, "::", MAXPATHLEN + 1);
312 if ((eaname = mtoupath(ea->vol, eaname)) == NULL)
314 strlcat(pathbuf, eaname, MAXPATHLEN + 1);
321 * Function: ea_addentry
323 * Purpose: add one EA into ea->ea_entries[]
327 * ea (rw) pointer to struct ea
328 * attruname (r) name of EA
329 * attrsize (r) size of ea
330 * bitmap (r) bitmap from FP func
332 * Returns: new number of EA entries, -1 on error
336 * Grow array ea->ea_entries[]. If ea->ea_entries is still NULL, start allocating.
337 * Otherwise realloc and put entry at the end. Increments ea->ea_count.
339 static int ea_addentry(struct ea * restrict ea,
340 const char * restrict attruname,
344 unsigned int count = 0;
347 /* First check if an EA of the requested name already exist */
348 if (ea->ea_count > 0) {
349 while (count < ea->ea_count) {
350 if (strcmp(attruname, (*ea->ea_entries)[count].ea_name) == 0) {
351 LOG(log_debug, logtype_afpd, "ea_addentry('%s'): exists", attruname);
352 if (bitmap & kXAttrCreate)
353 /* its like O_CREAT|O_EXCL -> fail */
355 if ( ! (bitmap & kXAttrReplace))
356 /* replace was not requested, then its an error */
364 if (ea->ea_count == 0) {
365 ea->ea_entries = malloc(sizeof(struct ea_entry));
366 if ( ! ea->ea_entries) {
367 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
371 tmprealloc = realloc(ea->ea_entries, sizeof(struct ea_entry) * (ea->ea_count + 1));
373 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
376 ea->ea_entries = tmprealloc;
379 /* We've grown the array, now store the entry */
380 (*(ea->ea_entries))[ea->ea_count].ea_size = attrsize;
381 (*(ea->ea_entries))[ea->ea_count].ea_name = strdup(attruname);
382 if ( ! (*(ea->ea_entries))[ea->ea_count].ea_name) {
383 LOG(log_error, logtype_afpd, "ea_addentry: OOM");
386 (*(ea->ea_entries))[ea->ea_count].ea_namelen = strlen(attruname);
392 if (ea->ea_count == 0 && ea->ea_entries) {
393 /* We just allocated storage but had an error somewhere -> free storage*/
394 free(ea->ea_entries);
395 ea->ea_entries = NULL;
402 * Function: ea_delentry
404 * Purpose: delete one EA from ea->ea_entries[]
408 * ea (rw) pointer to struct ea
409 * attruname (r) EA name
411 * Returns: new number of EA entries, -1 on error
415 * Remove entry from ea->ea_entries[]. Decrement ea->ea_count.
416 * Marks it as unused just by freeing name and setting it to NULL.
417 * ea_close and pack_buffer must honor this.
419 static int ea_delentry(struct ea * restrict ea,
420 const char * restrict attruname)
423 unsigned int count = 0;
425 if (ea->ea_count == 0) {
426 LOG(log_error, logtype_afpd, "ea_delentry('%s'): illegal ea_count of 0 on deletion");
430 while (count < ea->ea_count) {
431 /* search matching EA */
432 if (strcmp(attruname, (*ea->ea_entries)[count].ea_name) == 0) {
433 free((*ea->ea_entries)[count].ea_name);
434 (*ea->ea_entries)[count].ea_name = NULL;
436 LOG(log_debug, logtype_afpd, "ea_delentry('%s'): deleted no %u/%u",
437 attruname, count + 1, ea->ea_count);
448 * Function: create_ea_header
450 * Purpose: create EA header file, only called from ea_open
454 * uname (r) filename for which we have to create a header
455 * ea (rw) ea handle with already allocated storage pointed to
458 * Returns: fd of open header file on success, -1 on error, errno semantics:
459 * EEXIST: open with O_CREAT | O_EXCL failed
463 * Creates EA header file and initialize ea->ea_data buffer.
464 * Possibe race condition with other afpd processes:
465 * we were called because header file didn't exist in eg. ea_open. We then
466 * try to create a file with O_CREAT | O_EXCL, but the whole process in not atomic.
467 * What do we do then? Someone else is in the process of creating the header too, but
468 * it might not have finished it. That means we cant just open, read and use it!
469 * We therefor currently just break with an error.
470 * On return the header file is still r/w locked.
472 static int create_ea_header(const char * restrict uname,
473 struct ea * restrict ea)
475 int fd = -1, err = 0;
478 if ((fd = open(uname, O_RDWR | O_CREAT | O_EXCL, 0666 & ~ea->vol->v_umask)) == -1) {
479 LOG(log_error, logtype_afpd, "ea_create: open race condition with ea header for file: %s", uname);
484 if ((write_lock(fd, 0, SEEK_SET, 0)) != 0) {
485 LOG(log_error, logtype_afpd, "ea_create: lock race condition with ea header for file: %s", uname);
492 *(uint32_t *)ptr = htonl(EA_MAGIC);
494 *(uint16_t *)ptr = htons(EA_VERSION);
495 ptr += EA_VERSION_LEN;
496 *(uint16_t *)ptr = 0; /* count */
498 ea->ea_size = EA_HEADER_SIZE;
499 ea->ea_inited = EA_INITED;
512 * Purpose: write an EA to disk
516 * ea (r) struct ea handle
517 * attruname (r) EA name
518 * ibuf (r) buffer with EA content
519 * attrsize (r) size of EA
521 * Returns: 0 on success, -1 on error
525 * Creates/overwrites EA file.
528 static int write_ea(const struct ea * restrict ea,
529 const char * restrict attruname,
530 const char * restrict ibuf,
533 int fd = -1, ret = AFP_OK;
537 if ((eaname = ea_path(ea, attruname)) == NULL) {
538 LOG(log_error, logtype_afpd, "write_ea('%s'): ea_path error", attruname);
542 LOG(log_maxdebug, logtype_afpd, "write_ea('%s')", eaname);
544 /* Check if it exists, remove if yes*/
545 if ((stat(eaname, &st)) == 0) {
546 if ((unlink(eaname)) != 0) {
548 return AFPERR_ACCESS;
554 if ((fd = open(eaname, O_RDWR | O_CREAT | O_EXCL, 0666 & ~ea->vol->v_umask)) == -1) {
555 LOG(log_error, logtype_afpd, "write_ea: open race condition: %s", eaname);
560 if ((write_lock(fd, 0, SEEK_SET, 0)) != 0) {
561 LOG(log_error, logtype_afpd, "write_ea: open race condition: %s", eaname);
566 if (write(fd, ibuf, attrsize) != (ssize_t)attrsize) {
567 LOG(log_error, logtype_afpd, "write_ea('%s'): write: %s", eaname, strerror(errno));
574 close(fd); /* and unlock */
579 * Function: delete_ea_file
581 * Purpose: delete EA file from disk
585 * ea (r) struct ea handle
586 * attruname (r) EA name
588 * Returns: 0 on success, -1 on error
590 static int delete_ea_file(const struct ea * restrict ea,
597 if ((eafile = ea_path(ea, eaname)) == NULL) {
598 LOG(log_error, logtype_afpd, "delete_ea_file('%s'): ea_path error", eaname);
602 /* Check if it exists, remove if yes*/
603 if ((stat(eafile, &st)) == 0) {
604 if ((unlink(eafile)) != 0) {
605 LOG(log_error, logtype_afpd, "delete_ea_file('%s'): unlink: %s",
606 eafile, strerror(errno));
609 LOG(log_debug, logtype_afpd, "delete_ea_file('%s'): success", eafile);
618 * Purpose: open EA header file, create if it doesnt exits and called with O_CREATE
622 * vol (r) current volume
623 * uname (r) filename for which we have to open a header
624 * flags (r) EA_CREATE: create if it doesn't exist (without it won't be created)
625 * EA_RDONLY: open read only
626 * EA_RDWR: open read/write
627 * Eiterh EA_RDONLY or EA_RDWR MUST be requested
628 * ea (w) pointer to a struct ea that we fill
630 * Returns: 0 on success, -1 on error
634 * opens header file and stores fd in ea->ea_fd. Size of file is put into ea->ea_size.
635 * number of EAs is stored in ea->ea_count. flags are remembered in ea->ea_flags.
636 * file is either read or write locked depending on the open flags.
637 * When you're done with struct ea you must call ea_close on it.
639 static int ea_open(const struct vol * restrict vol,
640 const char * restrict uname,
642 struct ea * restrict ea)
648 /* Enforce usage rules! */
649 if ( ! (eaflags & (EA_RDONLY | EA_RDWR))) {
650 LOG(log_error, logtype_afpd, "ea_open: called without EA_RDONLY | EA_RDWR", uname);
654 /* Set it all to 0 */
655 memset(ea, 0, sizeof(struct ea));
657 ea->vol = vol; /* ea_close needs it */
658 ea->ea_flags = eaflags;
659 /* Dont care for errors, eg when removing the file is already gone */
660 if (!stat(uname, &st) && S_ISDIR(st.st_mode))
661 ea->ea_flags |= EA_DIR;
663 if ( ! (ea->filename = strdup(uname))) {
664 LOG(log_error, logtype_afpd, "ea_open: OOM");
668 eaname = ea_path(ea, NULL);
669 LOG(log_maxdebug, logtype_afpd, "ea_open: ea_path: %s", eaname);
671 /* Check if it exists, if not create it if EA_CREATE is in eaflags */
672 if ((stat(eaname, &st)) != 0) {
673 if (errno == ENOENT) {
675 /* It doesnt exist */
677 if ( ! (eaflags & EA_CREATE)) {
678 /* creation was not requested, so return with error */
683 /* Now create a header file */
685 /* malloc buffer for minimal on disk data */
686 ea->ea_data = malloc(EA_HEADER_SIZE);
688 LOG(log_error, logtype_afpd, "ea_open: OOM");
694 ea->ea_fd = create_ea_header(eaname, ea);
695 if (ea->ea_fd == -1) {
702 } else {/* errno != ENOENT */
708 /* header file exists, so read and parse it */
710 /* malloc buffer where we read disk file into */
711 ea->ea_size = st.st_size;
712 ea->ea_data = malloc(st.st_size);
714 LOG(log_error, logtype_afpd, "ea_open: OOM");
719 /* Now lock, open and read header file from disk */
720 if ((ea->ea_fd = open(eaname, (ea->ea_flags & EA_RDWR) ? O_RDWR : O_RDONLY)) == -1) {
721 LOG(log_error, logtype_afpd, "ea_open('%s'): error: %s", eaname, strerror(errno));
727 if (ea->ea_flags & EA_RDONLY) {
729 if ((read_lock(ea->ea_fd, 0, SEEK_SET, 0)) != 0) {
730 LOG(log_error, logtype_afpd, "ea_open: lock error on header: %s", eaname);
734 } else { /* EA_RDWR */
736 if ((write_lock(ea->ea_fd, 0, SEEK_SET, 0)) != 0) {
737 LOG(log_error, logtype_afpd, "ea_open: lock error on header: %s", eaname);
744 if (read(ea->ea_fd, ea->ea_data, ea->ea_size) != (ssize_t)ea->ea_size) {
745 LOG(log_error, logtype_afpd, "ea_open: short read on header: %s", eaname);
750 if ((unpack_header(ea)) != 0) {
751 LOG(log_error, logtype_afpd, "ea_open: error unpacking header for: %s", eaname);
758 ea->ea_inited = EA_INITED;
776 * Purpose: flushes and closes an ea handle
780 * ea (rw) pointer to ea handle
782 * Returns: 0 on success, -1 on error
786 * Flushes and then closes and frees all resouces held by ea handle.
787 * Pack data in ea into ea_data, then write ea_data to disk
789 static int ea_close(struct ea * restrict ea)
792 unsigned int count = 0;
796 LOG(log_debug, logtype_afpd, "ea_close('%s')", ea->filename);
798 if (ea->ea_inited != EA_INITED) {
799 LOG(log_warning, logtype_afpd, "ea_close('%s'): non initialized ea", ea->filename);
803 /* pack header and write it to disk if it was opened EA_RDWR*/
804 if (ea->ea_flags & EA_RDWR) {
805 if ((pack_header(ea)) != 0) {
806 LOG(log_error, logtype_afpd, "ea_close: pack header");
809 if (ea->ea_count == 0) {
810 /* Check if EA header exists and remove it */
811 eaname = ea_path(ea, NULL);
812 if ((stat(eaname, &st)) == 0) {
813 if ((unlink(eaname)) != 0) {
814 LOG(log_error, logtype_afpd, "ea_close('%s'): unlink: %s",
815 eaname, strerror(errno));
819 LOG(log_debug, logtype_afpd, "ea_close(unlink '%s'): success", eaname);
822 if (errno != ENOENT) {
823 LOG(log_error, logtype_afpd, "ea_close('%s'): stat: %s",
824 eaname, strerror(errno));
828 } else { /* ea->ea_count > 0 */
829 if ((lseek(ea->ea_fd, 0, SEEK_SET)) == -1) {
830 LOG(log_error, logtype_afpd, "ea_close: lseek: %s", strerror(errno));
835 if ((ftruncate(ea->ea_fd, 0)) == -1) {
836 LOG(log_error, logtype_afpd, "ea_close: ftruncate: %s", strerror(errno));
841 if (write(ea->ea_fd, ea->ea_data, ea->ea_size) != (ssize_t)ea->ea_size) {
842 LOG(log_error, logtype_afpd, "ea_close: write: %s", strerror(errno));
851 while(count < ea->ea_count) {
852 if ( (*ea->ea_entries)[count].ea_name ) {
853 free((*ea->ea_entries)[count].ea_name);
854 (*ea->ea_entries)[count].ea_name = NULL;
865 if (ea->ea_entries) {
866 free(ea->ea_entries);
867 ea->ea_entries = NULL;
874 if (ea->ea_fd != -1) {
875 close(ea->ea_fd); /* also releases the fcntl lock */
884 /************************************************************************************
885 * VFS funcs called from afp_ea* funcs
886 ************************************************************************************/
889 * Function: get_easize
891 * Purpose: get size of an EA
895 * vol (r) current volume
896 * rbuf (w) DSI reply buffer
897 * rbuflen (rw) current length of data in reply buffer
899 * oflag (r) link and create flag
900 * attruname (r) name of attribute
902 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
906 * Copies EA size into rbuf in network order. Increments *rbuflen +4.
908 int get_easize(VFS_FUNC_ARGS_EA_GETSIZE)
910 int ret = AFPERR_MISC;
911 unsigned int count = 0;
915 LOG(log_debug, logtype_afpd, "get_easize: file: %s", uname);
917 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
918 LOG(log_error, logtype_afpd, "get_easize: error calling ea_open for file: %s", uname);
922 while (count < ea.ea_count) {
923 if (strcmp(attruname, (*ea.ea_entries)[count].ea_name) == 0) {
924 uint32 = htonl((*ea.ea_entries)[count].ea_size);
925 memcpy(rbuf, &uint32, 4);
929 LOG(log_debug, logtype_afpd, "get_easize(\"%s\"): size: %u",
930 attruname, (*ea.ea_entries)[count].ea_size);
936 if ((ea_close(&ea)) != 0) {
937 LOG(log_error, logtype_afpd, "get_easize: error closing ea handle for file: %s", uname);
945 * Function: get_eacontent
947 * Purpose: copy EA into rbuf
951 * vol (r) current volume
952 * rbuf (w) DSI reply buffer
953 * rbuflen (rw) current length of data in reply buffer
955 * oflag (r) link and create flag
956 * attruname (r) name of attribute
957 * maxreply (r) maximum EA size as of current specs/real-life
959 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
963 * Copies EA into rbuf. Increments *rbuflen accordingly.
965 int get_eacontent(VFS_FUNC_ARGS_EA_GETCONTENT)
967 int ret = AFPERR_MISC, fd = -1;
968 unsigned int count = 0;
974 LOG(log_debug, logtype_afpd, "get_eacontent('%s/%s')", uname, attruname);
976 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
977 LOG(log_error, logtype_afpd, "get_eacontent('%s'): ea_open error", uname);
981 while (count < ea.ea_count) {
982 if (strcmp(attruname, (*ea.ea_entries)[count].ea_name) == 0) {
983 if ( (eafile = ea_path(&ea, attruname)) == NULL) {
988 if ((fd = open(eafile, O_RDONLY)) == -1) {
993 /* Check how much the client wants, give him what we think is right */
994 maxreply -= MAX_REPLY_EXTRA_BYTES;
995 if (maxreply > MAX_EA_SIZE)
996 maxreply = MAX_EA_SIZE;
997 toread = (maxreply < (*ea.ea_entries)[count].ea_size) ? maxreply : (*ea.ea_entries)[count].ea_size;
998 LOG(log_debug, logtype_afpd, "get_eacontent('%s'): sending %u bytes", attruname, toread);
1000 /* Put length of EA data in reply buffer */
1001 uint32 = htonl(toread);
1002 memcpy(rbuf, &uint32, 4);
1006 if (read(fd, rbuf, toread) != (ssize_t)toread) {
1007 LOG(log_error, logtype_afpd, "get_eacontent('%s/%s'): short read", uname, attruname);
1020 if ((ea_close(&ea)) != 0) {
1021 LOG(log_error, logtype_afpd, "get_eacontent('%s'): error closing ea handle", uname);
1030 * Function: list_eas
1032 * Purpose: copy names of EAs into attrnamebuf
1036 * vol (r) current volume
1037 * attrnamebuf (w) store names a consecutive C strings here
1038 * buflen (rw) length of names in attrnamebuf
1039 * uname (r) filename
1040 * oflag (r) link and create flag
1042 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1046 * Copies names of all EAs of uname as consecutive C strings into rbuf.
1047 * Increments *buflen accordingly.
1049 int list_eas(VFS_FUNC_ARGS_EA_LIST)
1051 unsigned int count = 0;
1052 int attrbuflen = *buflen, ret = AFP_OK, len;
1053 char *buf = attrnamebuf;
1056 LOG(log_debug, logtype_afpd, "list_eas: file: %s", uname);
1058 if ((ea_open(vol, uname, EA_RDONLY, &ea)) != 0) {
1059 if (errno != ENOENT) {
1060 LOG(log_error, logtype_afpd, "list_eas: error calling ea_open for file: %s", uname);
1067 while (count < ea.ea_count) {
1068 /* Convert name to CH_UTF8_MAC and directly store in in the reply buffer */
1069 if ( ( len = convert_string(vol->v_volcharset,
1071 (*ea.ea_entries)[count].ea_name,
1072 (*ea.ea_entries)[count].ea_namelen,
1080 /* convert_string didn't 0-terminate */
1081 attrnamebuf[attrbuflen + 255] = 0;
1083 LOG(log_debug7, logtype_afpd, "list_eas(%s): EA: %s",
1084 uname, (*ea.ea_entries)[count].ea_name);
1086 attrbuflen += len + 1;
1087 if (attrbuflen > (ATTRNAMEBUFSIZ - 256)) {
1088 /* Next EA name could overflow, so bail out with error.
1089 FIXME: evantually malloc/memcpy/realloc whatever.
1091 LOG(log_warning, logtype_afpd, "list_eas(%s): running out of buffer for EA names", uname);
1099 *buflen = attrbuflen;
1101 if ((ea_close(&ea)) != 0) {
1102 LOG(log_error, logtype_afpd, "list_eas: error closing ea handle for file: %s", uname);
1112 * Purpose: set a Solaris native EA
1116 * vol (r) current volume
1117 * uname (r) filename
1118 * attruname (r) EA name
1119 * ibuf (r) buffer with EA content
1120 * attrsize (r) length EA in ibuf
1121 * oflag (r) link and create flag
1123 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1127 * Copies names of all EAs of uname as consecutive C strings into rbuf.
1128 * Increments *rbuflen accordingly.
1130 int set_ea(VFS_FUNC_ARGS_EA_SET)
1135 LOG(log_debug, logtype_afpd, "set_ea: file: %s", uname);
1137 if ((ea_open(vol, uname, EA_CREATE | EA_RDWR, &ea)) != 0) {
1138 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_open error", uname);
1142 if ((ea_addentry(&ea, attruname, attrsize, oflag)) == -1) {
1143 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_addentry error", uname);
1148 if ((write_ea(&ea, attruname, ibuf, attrsize)) != 0) {
1149 LOG(log_error, logtype_afpd, "set_ea('%s'): write_ea error", uname);
1155 if ((ea_close(&ea)) != 0) {
1156 LOG(log_error, logtype_afpd, "set_ea('%s'): ea_close error", uname);
1165 * Function: remove_ea
1167 * Purpose: remove a EA from a file
1171 * vol (r) current volume
1172 * uname (r) filename
1173 * attruname (r) EA name
1174 * oflag (r) link and create flag
1176 * Returns: AFP code: AFP_OK on success or appropiate AFP error code
1180 * Removes EA attruname from file uname.
1182 int remove_ea(VFS_FUNC_ARGS_EA_REMOVE)
1187 LOG(log_debug, logtype_afpd, "remove_ea('%s/%s')", uname, attruname);
1189 if ((ea_open(vol, uname, EA_RDWR, &ea)) != 0) {
1190 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_open error", uname);
1194 if ((ea_delentry(&ea, attruname)) == -1) {
1195 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_delentry error", uname);
1200 if ((delete_ea_file(&ea, attruname)) != 0) {
1201 LOG(log_error, logtype_afpd, "remove_ea('%s'): delete_ea error", uname);
1207 if ((ea_close(&ea)) != 0) {
1208 LOG(log_error, logtype_afpd, "remove_ea('%s'): ea_close error", uname);
1216 /******************************************************************************************
1217 * EA VFS funcs that deal with file/dir cp/mv/rm
1218 ******************************************************************************************/
1220 int ea_deletefile(VFS_FUNC_ARGS_DELETEFILE)
1222 unsigned int count = 0;
1226 LOG(log_debug, logtype_afpd, "ea_deletefile('%s')", file);
1229 if ((ea_open(vol, file, EA_RDWR, &ea)) != 0) {
1230 if (errno == ENOENT)
1231 /* no EA files, nothing to do */
1234 LOG(log_error, logtype_afpd, "ea_deletefile('%s'): error calling ea_open", file);
1239 while (count < ea.ea_count) {
1240 if ((delete_ea_file(&ea, (*ea.ea_entries)[count].ea_name)) != 0) {
1244 free((*ea.ea_entries)[count].ea_name);
1245 (*ea.ea_entries)[count].ea_name = NULL;
1249 /* ea_close removes the EA header file for us because all names are NULL */
1250 if ((ea_close(&ea)) != 0) {
1251 LOG(log_error, logtype_afpd, "ea_deletefile('%s'): error closing ea handle", file);
1258 int ea_renamefile(VFS_FUNC_ARGS_RENAMEFILE)
1260 unsigned int count = 0;
1263 char srceapath[ MAXPATHLEN + 1];
1270 LOG(log_debug, logtype_afpd, "ea_renamefile('%s'/'%s')", src, dst);
1274 if ((ea_open(vol, src, EA_RDWR, &srcea)) != 0) {
1275 if (errno == ENOENT)
1276 /* no EA files, nothing to do */
1279 LOG(log_error, logtype_afpd, "ea_renamefile('%s'/'%s'): ea_open error: '%s'", src, dst, src);
1284 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1285 if (errno == ENOENT) {
1286 /* Possibly the .AppleDouble folder didn't exist, we create it and try again */
1287 ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1288 if ((ad_open(dst, ADFLAGS_HF, O_RDWR | O_CREAT, 0666, &ad)) != 0) {
1289 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): ad_open error: '%s'", src, dst, dst);
1293 ad_close(&ad, ADFLAGS_HF);
1294 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1301 /* Loop through all EAs: */
1302 while (count < srcea.ea_count) {
1304 eaname = (*srcea.ea_entries)[count].ea_name;
1305 easize = (*srcea.ea_entries)[count].ea_size;
1307 /* Build src and dst paths for rename() */
1308 if ((eapath = ea_path(&srcea, eaname)) == NULL) {
1312 strcpy(srceapath, eapath);
1313 if ((eapath = ea_path(&dstea, eaname)) == NULL) {
1318 LOG(log_maxdebug, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1319 src, dst, srceapath, eapath);
1321 /* Add EA to dstea */
1322 if ((ea_addentry(&dstea, eaname, easize, 0)) == -1) {
1323 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1324 src, dst, srceapath, eapath);
1329 /* Remove EA entry from srcea */
1330 if ((ea_delentry(&srcea, eaname)) == -1) {
1331 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1332 src, dst, srceapath, eapath);
1333 ea_delentry(&dstea, eaname);
1338 /* Now rename the EA */
1339 if ((rename( srceapath, eapath)) < 0) {
1340 LOG(log_error, logtype_afpd, "ea_renamefile('%s/%s'): moving EA '%s' to '%s'",
1341 src, dst, srceapath, eapath);
1356 int ea_copyfile(VFS_FUNC_ARGS_COPYFILE)
1358 unsigned int count = 0;
1361 char srceapath[ MAXPATHLEN + 1];
1368 LOG(log_debug, logtype_afpd, "ea_copyfile('%s'/'%s')", src, dst);
1371 if ((ea_open(vol, src, EA_RDWR, &srcea)) != 0) {
1372 if (errno == ENOENT)
1373 /* no EA files, nothing to do */
1376 LOG(log_error, logtype_afpd, "ea_copyfile('%s'/'%s'): ea_open error: '%s'", src, dst, src);
1381 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1382 if (errno == ENOENT) {
1383 /* Possibly the .AppleDouble folder didn't exist, we create it and try again */
1384 ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1385 if ((ad_open(dst, ADFLAGS_HF, O_RDWR | O_CREAT, 0666, &ad)) != 0) {
1386 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): ad_open error: '%s'", src, dst, dst);
1390 ad_close(&ad, ADFLAGS_HF);
1391 if ((ea_open(vol, dst, EA_RDWR | EA_CREATE, &dstea)) != 0) {
1398 /* Loop through all EAs: */
1399 while (count < srcea.ea_count) {
1401 eaname = (*srcea.ea_entries)[count].ea_name;
1402 easize = (*srcea.ea_entries)[count].ea_size;
1404 /* Build src and dst paths for copy_file() */
1405 if ((eapath = ea_path(&srcea, eaname)) == NULL) {
1409 strcpy(srceapath, eapath);
1410 if ((eapath = ea_path(&dstea, eaname)) == NULL) {
1415 LOG(log_maxdebug, logtype_afpd, "ea_copyfile('%s/%s'): copying EA '%s' to '%s'",
1416 src, dst, srceapath, eapath);
1418 /* Add EA to dstea */
1419 if ((ea_addentry(&dstea, eaname, easize, 0)) == -1) {
1420 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): ea_addentry('%s') error",
1426 /* Now copy the EA */
1427 if ((copy_file( srceapath, eapath, (0666 & ~vol->v_umask))) < 0) {
1428 LOG(log_error, logtype_afpd, "ea_copyfile('%s/%s'): copying EA '%s' to '%s'",
1429 src, dst, srceapath, eapath);
1443 int ea_chown(VFS_FUNC_ARGS_CHOWN)
1446 unsigned int count = 0;
1451 LOG(log_debug, logtype_afpd, "ea_chown('%s')", path);
1453 if ((ea_open(vol, path, EA_RDWR, &ea)) != 0) {
1454 if (errno == ENOENT)
1455 /* no EA files, nothing to do */
1458 LOG(log_error, logtype_afpd, "ea_chown('%s'): error calling ea_open", path);
1463 if ((chown(ea_path(&ea, NULL), uid, gid)) != 0) {
1467 ret = AFPERR_ACCESS;
1475 while (count < ea.ea_count) {
1476 if ((eaname = ea_path(&ea, (*ea.ea_entries)[count].ea_name)) == NULL) {
1480 if ((chown(eaname, uid, gid)) != 0) {
1484 ret = AFPERR_ACCESS;
1497 if ((ea_close(&ea)) != 0) {
1498 LOG(log_error, logtype_afpd, "ea_chown('%s'): error closing ea handle", path);
1505 int ea_chmod_file(VFS_FUNC_ARGS_SETFILEMODE)
1508 unsigned int count = 0;
1513 LOG(log_debug, logtype_afpd, "ea_chmod_file('%s')", name);
1515 if ((ea_open(vol, name, EA_RDWR, &ea)) != 0) {
1516 if (errno == ENOENT)
1517 /* no EA files, nothing to do */
1523 /* Set mode on EA header file */
1524 if ((setfilmode(ea_path(&ea, NULL), ea_header_mode(mode), NULL, vol->v_umask)) != 0) {
1525 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): %s", ea_path(&ea, NULL), strerror(errno));
1529 ret = AFPERR_ACCESS;
1537 /* Set mode on EA files */
1538 while (count < ea.ea_count) {
1539 if ((eaname = ea_path(&ea, (*ea.ea_entries)[count].ea_name)) == NULL) {
1543 if ((setfilmode(eaname, ea_mode(mode), NULL, vol->v_umask)) != 0) {
1544 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): %s", eaname, strerror(errno));
1548 ret = AFPERR_ACCESS;
1561 if ((ea_close(&ea)) != 0) {
1562 LOG(log_error, logtype_afpd, "ea_chmod_file('%s'): error closing ea handle", name);
1569 int ea_chmod_dir(VFS_FUNC_ARGS_SETDIRUNIXMODE)
1573 unsigned int count = 0;
1576 const char *eaname_safe = NULL;
1579 LOG(log_debug, logtype_afpd, "ea_chmod_dir('%s')", name);
1580 /* .AppleDouble already might be inaccesible, so we must run as id 0 */
1583 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): seteuid: %s", name, strerror(errno));
1588 if ((ea_open(vol, name, EA_RDWR, &ea)) != 0) {
1589 /* ENOENT --> no EA files, nothing to do */
1590 if (errno != ENOENT)
1592 if (seteuid(uid) < 0) {
1593 LOG(log_error, logtype_afpd, "can't seteuid back: %s", strerror(errno));
1599 /* Set mode on EA header */
1600 if ((setfilmode(ea_path(&ea, NULL), ea_header_mode(mode), NULL, vol->v_umask)) != 0) {
1601 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): %s", ea_path(&ea, NULL), strerror(errno));
1605 ret = AFPERR_ACCESS;
1613 /* Set mode on EA files */
1614 while (count < ea.ea_count) {
1615 eaname = (*ea.ea_entries)[count].ea_name;
1617 * Be careful with EA names from the EA header!
1618 * Eg NFS users might have access to them, can inject paths using ../ or /.....
1620 * Until the EA code escapes / in EA name requests from the client, these therefor wont work.
1622 if ((eaname_safe = strrchr(eaname, '/'))) {
1623 LOG(log_warning, logtype_afpd, "ea_chmod_dir('%s'): contains a slash", eaname);
1624 eaname = eaname_safe;
1626 if ((eaname = ea_path(&ea, eaname)) == NULL) {
1630 if ((setfilmode(eaname, ea_mode(mode), NULL, vol->v_umask)) != 0) {
1631 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): %s", eaname, strerror(errno));
1635 ret = AFPERR_ACCESS;
1648 if (seteuid(uid) < 0) {
1649 LOG(log_error, logtype_afpd, "can't seteuid back: %s", strerror(errno));
1653 if ((ea_close(&ea)) != 0) {
1654 LOG(log_error, logtype_afpd, "ea_chmod_dir('%s'): error closing ea handle", name);