2 * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <sys/types.h>
19 #include <sys/queue.h>
21 #include <sys/socket.h>
23 #include <sys/syslimits.h>
38 #include "got_error.h"
39 #include "got_object.h"
40 #include "got_repository.h"
41 #include "got_opentemp.h"
43 #include "got_lib_sha1.h"
44 #include "got_lib_delta.h"
45 #include "got_lib_pack.h"
46 #include "got_lib_path.h"
47 #include "got_lib_inflate.h"
48 #include "got_lib_object.h"
49 #include "got_lib_privsep.h"
50 #include "got_lib_object_idcache.h"
51 #include "got_lib_object_cache.h"
52 #include "got_lib_object_parse.h"
53 #include "got_lib_repository.h"
56 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
59 struct got_object_id *
60 got_object_id_dup(struct got_object_id *id1)
62 struct got_object_id *id2;
64 id2 = malloc(sizeof(*id2));
67 memcpy(id2, id1, sizeof(*id2));
71 struct got_object_id *
72 got_object_get_id(struct got_object *obj)
77 const struct got_error *
78 got_object_get_id_str(char **outbuf, struct got_object *obj)
80 return got_object_id_str(outbuf, &obj->id);
84 got_object_get_type(struct got_object *obj)
87 case GOT_OBJ_TYPE_COMMIT:
88 case GOT_OBJ_TYPE_TREE:
89 case GOT_OBJ_TYPE_BLOB:
90 case GOT_OBJ_TYPE_TAG:
101 static const struct got_error *
102 object_path(char **path, struct got_object_id *id, struct got_repository *repo)
104 const struct got_error *err = NULL;
106 char *path_objects = got_repo_get_path_objects(repo);
110 if (path_objects == NULL)
111 return got_error_from_errno();
113 err = got_object_id_str(&hex, id);
117 if (asprintf(path, "%s/%.2x/%s", path_objects,
118 id->sha1[0], hex + 2) == -1)
119 err = got_error_from_errno();
127 static const struct got_error *
128 open_loose_object(int *fd, struct got_object *obj, struct got_repository *repo)
130 const struct got_error *err = NULL;
133 err = object_path(&path, &obj->id, repo);
136 *fd = open(path, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
138 err = got_error_from_errno();
146 static const struct got_error *
147 get_packfile_path(char **path_packfile, struct got_packidx *packidx)
151 /* Packfile path contains ".pack" instead of ".idx", so add one byte. */
152 size = strlen(packidx->path_packidx) + 2;
153 if (size < GOT_PACKFILE_NAMELEN + 1)
154 return got_error(GOT_ERR_BAD_PATH);
156 *path_packfile = malloc(size);
157 if (*path_packfile == NULL)
158 return got_error_from_errno();
160 /* Copy up to and excluding ".idx". */
161 if (strlcpy(*path_packfile, packidx->path_packidx,
162 size - strlen(GOT_PACKIDX_SUFFIX) - 1) >= size)
163 return got_error(GOT_ERR_NO_SPACE);
165 if (strlcat(*path_packfile, GOT_PACKFILE_SUFFIX, size) >= size)
166 return got_error(GOT_ERR_NO_SPACE);
171 static const struct got_error *
172 open_packed_object(struct got_object **obj, struct got_object_id *id,
173 struct got_repository *repo)
175 const struct got_error *err = NULL;
176 struct got_pack *pack = NULL;
177 struct got_packidx *packidx = NULL;
181 err = got_repo_search_packidx(&packidx, &idx, repo, id);
185 err = get_packfile_path(&path_packfile, packidx);
189 pack = got_repo_get_cached_pack(repo, path_packfile);
191 err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
196 err = got_object_packed_read_privsep(obj, repo, pack, packidx, idx, id);
200 err = got_repo_cache_pack(NULL, repo, (*obj)->path_packfile, packidx);
206 const struct got_error *
207 got_object_open(struct got_object **obj, struct got_repository *repo,
208 struct got_object_id *id)
210 const struct got_error *err = NULL;
214 *obj = got_repo_get_cached_object(repo, id);
220 err = open_packed_object(obj, id, repo);
221 if (err && err->code != GOT_ERR_NO_OBJ)
225 return got_repo_cache_object(repo, id, *obj);
228 err = object_path(&path, id, repo);
232 fd = open(path, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
235 err = got_error_no_obj(id);
237 err = got_error_from_errno();
240 err = got_object_read_header_privsep(obj, repo, fd);
243 memcpy((*obj)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
247 err = got_repo_cache_object(repo, id, *obj);
256 const struct got_error *
257 got_object_open_by_id_str(struct got_object **obj, struct got_repository *repo,
260 struct got_object_id id;
262 if (!got_parse_sha1_digest(id.sha1, id_str))
263 return got_error(GOT_ERR_BAD_OBJ_ID_STR);
265 return got_object_open(obj, repo, &id);
268 static const struct got_error *
269 open_commit(struct got_commit_object **commit,
270 struct got_repository *repo, struct got_object *obj, int check_cache)
272 const struct got_error *err = NULL;
275 *commit = got_repo_get_cached_commit(repo, &obj->id);
276 if (*commit != NULL) {
283 if (obj->type != GOT_OBJ_TYPE_COMMIT)
284 return got_error(GOT_ERR_OBJ_TYPE);
286 if (obj->flags & GOT_OBJ_FLAG_PACKED) {
287 struct got_pack *pack;
288 pack = got_repo_get_cached_pack(repo, obj->path_packfile);
290 err = got_repo_cache_pack(&pack, repo,
291 obj->path_packfile, NULL);
295 err = got_object_read_packed_commit_privsep(commit, obj, pack);
298 err = open_loose_object(&fd, obj, repo);
301 err = got_object_read_commit_privsep(commit, obj, fd, repo);
307 err = got_repo_cache_commit(repo, &obj->id, *commit);
313 const struct got_error *
314 got_object_open_as_commit(struct got_commit_object **commit,
315 struct got_repository *repo, struct got_object_id *id)
317 const struct got_error *err;
318 struct got_object *obj;
320 *commit = got_repo_get_cached_commit(repo, id);
321 if (*commit != NULL) {
326 err = got_object_open(&obj, repo, id);
329 if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
330 err = got_error(GOT_ERR_OBJ_TYPE);
334 err = open_commit(commit, repo, obj, 0);
336 got_object_close(obj);
340 const struct got_error *
341 got_object_commit_open(struct got_commit_object **commit,
342 struct got_repository *repo, struct got_object *obj)
344 return open_commit(commit, repo, obj, 1);
347 const struct got_error *
348 got_object_qid_alloc(struct got_object_qid **qid, struct got_object_id *id)
350 const struct got_error *err = NULL;
352 *qid = calloc(1, sizeof(**qid));
354 return got_error_from_errno();
356 (*qid)->id = got_object_id_dup(id);
357 if ((*qid)->id == NULL) {
358 err = got_error_from_errno();
359 got_object_qid_free(*qid);
367 static const struct got_error *
368 open_tree(struct got_tree_object **tree,
369 struct got_repository *repo, struct got_object *obj, int check_cache)
371 const struct got_error *err = NULL;
374 *tree = got_repo_get_cached_tree(repo, &obj->id);
382 if (obj->type != GOT_OBJ_TYPE_TREE)
383 return got_error(GOT_ERR_OBJ_TYPE);
385 if (obj->flags & GOT_OBJ_FLAG_PACKED) {
386 struct got_pack *pack;
387 pack = got_repo_get_cached_pack(repo, obj->path_packfile);
389 err = got_repo_cache_pack(&pack, repo,
390 obj->path_packfile, NULL);
394 err = got_object_read_packed_tree_privsep(tree, obj, pack);
397 err = open_loose_object(&fd, obj, repo);
400 err = got_object_read_tree_privsep(tree, obj, fd, repo);
406 err = got_repo_cache_tree(repo, &obj->id, *tree);
412 const struct got_error *
413 got_object_open_as_tree(struct got_tree_object **tree,
414 struct got_repository *repo, struct got_object_id *id)
416 const struct got_error *err;
417 struct got_object *obj;
419 *tree = got_repo_get_cached_tree(repo, id);
425 err = got_object_open(&obj, repo, id);
428 if (got_object_get_type(obj) != GOT_OBJ_TYPE_TREE) {
429 err = got_error(GOT_ERR_OBJ_TYPE);
433 err = open_tree(tree, repo, obj, 0);
435 got_object_close(obj);
439 const struct got_error *
440 got_object_tree_open(struct got_tree_object **tree,
441 struct got_repository *repo, struct got_object *obj)
443 return open_tree(tree, repo, obj, 1);
446 const struct got_tree_entries *
447 got_object_tree_get_entries(struct got_tree_object *tree)
449 return &tree->entries;
452 static const struct got_error *
453 read_packed_blob_privsep(size_t *size, int outfd, struct got_object *obj,
454 struct got_pack *pack)
456 const struct got_error *err = NULL;
458 int basefd, accumfd; /* temporary files for delta application */
460 basefd = got_opentempfd();
462 return got_error_from_errno();
463 accumfd = got_opentempfd();
465 return got_error_from_errno();
467 outfd_child = dup(outfd);
468 if (outfd_child == -1)
469 return got_error_from_errno();
471 err = got_privsep_send_obj_req(pack->privsep_child->ibuf, -1, obj);
475 err = got_privsep_send_blob_outfd(pack->privsep_child->ibuf,
481 err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
490 err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
498 err = got_privsep_recv_blob(size, pack->privsep_child->ibuf);
502 if (lseek(outfd, SEEK_SET, 0) == -1)
503 err = got_error_from_errno();
508 const struct got_error *
509 got_object_blob_open(struct got_blob_object **blob,
510 struct got_repository *repo, struct got_object *obj, size_t blocksize)
512 const struct got_error *err = NULL;
517 if (obj->type != GOT_OBJ_TYPE_BLOB)
518 return got_error(GOT_ERR_OBJ_TYPE);
520 if (blocksize < obj->hdrlen)
521 return got_error(GOT_ERR_NO_SPACE);
523 *blob = calloc(1, sizeof(**blob));
525 return got_error_from_errno();
527 outfd = got_opentempfd();
529 return got_error_from_errno();
531 (*blob)->read_buf = malloc(blocksize);
532 if ((*blob)->read_buf == NULL) {
533 err = got_error_from_errno();
536 if (obj->flags & GOT_OBJ_FLAG_PACKED) {
537 struct got_pack *pack;
538 pack = got_repo_get_cached_pack(repo, obj->path_packfile);
540 err = got_repo_cache_pack(&pack, repo,
541 obj->path_packfile, NULL);
545 err = read_packed_blob_privsep(&size, outfd, obj, pack);
552 err = open_loose_object(&infd, obj, repo);
556 err = got_object_read_blob_privsep(&size, outfd, infd, repo);
561 if (size != obj->hdrlen + obj->size) {
562 err = got_error(GOT_ERR_PRIVSEP_LEN);
567 if (fstat(outfd, &sb) == -1) {
568 err = got_error_from_errno();
572 if (sb.st_size != obj->hdrlen + obj->size) {
573 err = got_error(GOT_ERR_PRIVSEP_LEN);
577 (*blob)->f = fdopen(outfd, "rb");
578 if ((*blob)->f == NULL) {
579 err = got_error_from_errno();
584 (*blob)->hdrlen = obj->hdrlen;
585 (*blob)->blocksize = blocksize;
586 memcpy(&(*blob)->id.sha1, obj->id.sha1, SHA1_DIGEST_LENGTH);
593 free((*blob)->read_buf);
596 } else if (outfd != -1)
602 const struct got_error *
603 got_object_open_as_blob(struct got_blob_object **blob,
604 struct got_repository *repo, struct got_object_id *id,
607 const struct got_error *err;
608 struct got_object *obj;
612 err = got_object_open(&obj, repo, id);
615 if (got_object_get_type(obj) != GOT_OBJ_TYPE_BLOB) {
616 err = got_error(GOT_ERR_OBJ_TYPE);
620 err = got_object_blob_open(blob, repo, obj, blocksize);
622 got_object_close(obj);
627 got_object_blob_close(struct got_blob_object *blob)
629 free(blob->read_buf);
635 got_object_blob_id_str(struct got_blob_object *blob, char *buf, size_t size)
637 return got_sha1_digest_to_str(blob->id.sha1, buf, size);
641 got_object_blob_get_hdrlen(struct got_blob_object *blob)
647 got_object_blob_get_read_buf(struct got_blob_object *blob)
649 return blob->read_buf;
652 const struct got_error *
653 got_object_blob_read_block(size_t *outlenp, struct got_blob_object *blob)
657 n = fread(blob->read_buf, 1, blob->blocksize, blob->f);
658 if (n == 0 && ferror(blob->f))
659 return got_ferror(blob->f, GOT_ERR_IO);
664 const struct got_error *
665 got_object_blob_dump_to_file(size_t *total_len, size_t *nlines,
666 FILE *outfile, struct got_blob_object *blob)
668 const struct got_error *err = NULL;
678 hdrlen = got_object_blob_get_hdrlen(blob);
680 err = got_object_blob_read_block(&len, blob);
687 buf = got_object_blob_get_read_buf(blob);
689 for (i = 0; i < len; i++) {
694 /* Skip blob object header first time around. */
695 fwrite(buf + hdrlen, len - hdrlen, 1, outfile);
705 static const struct got_error *
706 open_tag(struct got_tag_object **tag,
707 struct got_repository *repo, struct got_object *obj, int check_cache)
709 const struct got_error *err = NULL;
712 *tag = got_repo_get_cached_tag(repo, &obj->id);
720 if (obj->type != GOT_OBJ_TYPE_TAG)
721 return got_error(GOT_ERR_OBJ_TYPE);
723 if (obj->flags & GOT_OBJ_FLAG_PACKED) {
724 struct got_pack *pack;
725 pack = got_repo_get_cached_pack(repo, obj->path_packfile);
727 err = got_repo_cache_pack(&pack, repo,
728 obj->path_packfile, NULL);
732 err = got_object_read_packed_tag_privsep(tag, obj, pack);
735 err = open_loose_object(&fd, obj, repo);
738 err = got_object_read_tag_privsep(tag, obj, fd, repo);
744 err = got_repo_cache_tag(repo, &obj->id, *tag);
750 const struct got_error *
751 got_object_open_as_tag(struct got_tag_object **tag,
752 struct got_repository *repo, struct got_object_id *id)
754 const struct got_error *err;
755 struct got_object *obj;
757 *tag = got_repo_get_cached_tag(repo, id);
763 err = got_object_open(&obj, repo, id);
766 if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
767 err = got_error(GOT_ERR_OBJ_TYPE);
771 err = open_tag(tag, repo, obj, 0);
773 got_object_close(obj);
777 const struct got_error *
778 got_object_tag_open(struct got_tag_object **tag,
779 struct got_repository *repo, struct got_object *obj)
781 return open_tag(tag, repo, obj, 1);
784 static struct got_tree_entry *
785 find_entry_by_name(struct got_tree_object *tree, const char *name, size_t len)
787 struct got_tree_entry *te;
789 /* Note that tree entries are sorted in strncmp() order. */
790 SIMPLEQ_FOREACH(te, &tree->entries.head, entry) {
791 int cmp = strncmp(te->name, name, len);
796 if (te->name[len] == '\0')
802 const struct got_error *
803 got_object_id_by_path(struct got_object_id **id, struct got_repository *repo,
804 struct got_object_id *commit_id, const char *path)
806 const struct got_error *err = NULL;
807 struct got_commit_object *commit = NULL;
808 struct got_tree_object *tree = NULL;
809 struct got_tree_entry *te = NULL;
811 size_t seglen, len = strlen(path);
815 /* We are expecting an absolute in-repository path. */
817 return got_error(GOT_ERR_NOT_ABSPATH);
819 err = got_object_open_as_commit(&commit, repo, commit_id);
823 /* Handle opening of root of commit's tree. */
824 if (path[1] == '\0') {
825 *id = got_object_id_dup(commit->tree_id);
827 err = got_error_from_errno();
831 err = got_object_open_as_tree(&tree, repo, commit->tree_id);
836 s++; /* skip leading '/' */
841 struct got_tree_object *next_tree;
851 te = find_entry_by_name(tree, seg, seglen);
853 err = got_error(GOT_ERR_NO_TREE_ENTRY);
865 err = got_object_open_as_tree(&next_tree, repo,
870 got_object_tree_close(tree);
876 *id = got_object_id_dup(te->id);
878 return got_error_from_errno();
880 err = got_error(GOT_ERR_NO_TREE_ENTRY);
883 got_object_commit_close(commit);
885 got_object_tree_close(tree);
889 const struct got_error *
890 got_object_tree_path_changed(int *changed,
891 struct got_tree_object *tree01, struct got_tree_object *tree02,
892 const char *path, struct got_repository *repo)
894 const struct got_error *err = NULL;
895 struct got_tree_object *tree1 = NULL, *tree2 = NULL;
896 struct got_tree_entry *te1 = NULL, *te2 = NULL;
898 size_t seglen, remain = strlen(path);
902 /* We are expecting an absolute in-repository path. */
904 return got_error(GOT_ERR_NOT_ABSPATH);
906 /* We not do support comparing the root path. */
908 return got_error(GOT_ERR_BAD_PATH);
913 s++; /* skip leading '/' */
918 struct got_tree_object *next_tree1, *next_tree2;
928 te1 = find_entry_by_name(tree1, seg, seglen);
930 err = got_error(GOT_ERR_NO_OBJ);
934 te2 = find_entry_by_name(tree2, seg, seglen);
940 if (te1->mode != te2->mode) {
945 if (got_object_id_cmp(te1->id, te2->id) == 0) {
950 if (remain == 0) { /* final path element */
960 err = got_object_open_as_tree(&next_tree1, repo,
966 got_object_tree_close(tree1);
969 err = got_object_open_as_tree(&next_tree2, repo,
975 got_object_tree_close(tree2);
980 if (tree1 && tree1 != tree01)
981 got_object_tree_close(tree1);
982 if (tree2 && tree2 != tree02)
983 got_object_tree_close(tree2);
988 exec_privsep_child(int imsg_fds[2], const char *path, const char *repo_path)
992 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
993 fprintf(stderr, "%s: %s\n", getprogname(),
997 if (closefrom(GOT_IMSG_FD_CHILD + 1) == -1) {
998 fprintf(stderr, "%s: %s\n", getprogname(),
1003 if (execl(path, path, repo_path, (char *)NULL) == -1) {
1004 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,
1010 static const struct got_error *
1011 request_object(struct got_object **obj, struct got_repository *repo, int fd)
1013 const struct got_error *err = NULL;
1014 struct imsgbuf *ibuf;
1016 ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf;
1018 err = got_privsep_send_obj_req(ibuf, fd, NULL);
1022 return got_privsep_recv_obj(obj, ibuf);
1025 const struct got_error *
1026 got_object_read_header_privsep(struct got_object **obj,
1027 struct got_repository *repo, int obj_fd)
1031 struct imsgbuf *ibuf;
1033 if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd != -1)
1034 return request_object(obj, repo, obj_fd);
1036 ibuf = calloc(1, sizeof(*ibuf));
1038 return got_error_from_errno();
1040 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1041 return got_error_from_errno();
1045 return got_error_from_errno();
1046 else if (pid == 0) {
1047 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_OBJECT,
1053 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd =
1055 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].pid = pid;
1056 imsg_init(ibuf, imsg_fds[0]);
1057 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf = ibuf;
1059 return request_object(obj, repo, obj_fd);
1062 static const struct got_error *
1063 request_packed_object(struct got_object **obj, struct got_pack *pack, int idx,
1064 struct got_object_id *id)
1066 const struct got_error *err = NULL;
1067 struct imsgbuf *ibuf = pack->privsep_child->ibuf;
1069 err = got_privsep_send_packed_obj_req(ibuf, idx, id);
1073 err = got_privsep_recv_obj(obj, ibuf);
1077 (*obj)->path_packfile = strdup(pack->path_packfile);
1078 if ((*obj)->path_packfile == NULL) {
1079 err = got_error_from_errno();
1082 memcpy(&(*obj)->id, id, sizeof((*obj)->id));
1087 const struct got_error *
1088 got_object_packed_read_privsep(struct got_object **obj,
1089 struct got_repository *repo, struct got_pack *pack,
1090 struct got_packidx *packidx, int idx, struct got_object_id *id)
1092 const struct got_error *err = NULL;
1095 struct imsgbuf *ibuf;
1097 if (pack->privsep_child)
1098 return request_packed_object(obj, pack, idx, id);
1100 ibuf = calloc(1, sizeof(*ibuf));
1102 return got_error_from_errno();
1104 pack->privsep_child = calloc(1, sizeof(*pack->privsep_child));
1105 if (pack->privsep_child == NULL) {
1106 err = got_error_from_errno();
1111 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
1112 err = got_error_from_errno();
1118 err = got_error_from_errno();
1120 } else if (pid == 0) {
1121 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_PACK,
1122 pack->path_packfile);
1127 pack->privsep_child->imsg_fd = imsg_fds[0];
1128 pack->privsep_child->pid = pid;
1129 imsg_init(ibuf, imsg_fds[0]);
1130 pack->privsep_child->ibuf = ibuf;
1132 err = got_privsep_init_pack_child(ibuf, pack, packidx);
1134 const struct got_error *child_err;
1135 err = got_privsep_send_stop(pack->privsep_child->imsg_fd);
1136 child_err = got_privsep_wait_for_child(
1137 pack->privsep_child->pid);
1138 if (child_err && err == NULL)
1141 free(pack->privsep_child);
1142 pack->privsep_child = NULL;
1149 free(pack->privsep_child);
1150 pack->privsep_child = NULL;
1152 err = request_packed_object(obj, pack, idx, id);
1156 static const struct got_error *
1157 request_commit(struct got_commit_object **commit, struct got_repository *repo,
1158 struct got_object *obj, int fd)
1160 const struct got_error *err = NULL;
1161 struct imsgbuf *ibuf;
1163 ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf;
1165 err = got_privsep_send_obj_req(ibuf, fd, obj);
1169 return got_privsep_recv_commit(commit, ibuf);
1172 const struct got_error *
1173 got_object_read_packed_commit_privsep(struct got_commit_object **commit,
1174 struct got_object *obj, struct got_pack *pack)
1176 const struct got_error *err = NULL;
1178 err = got_privsep_send_obj_req(pack->privsep_child->ibuf, -1, obj);
1182 return got_privsep_recv_commit(commit, pack->privsep_child->ibuf);
1185 const struct got_error *
1186 got_object_read_commit_privsep(struct got_commit_object **commit,
1187 struct got_object *obj, int obj_fd, struct got_repository *repo)
1191 struct imsgbuf *ibuf;
1193 if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd != -1)
1194 return request_commit(commit, repo, obj, obj_fd);
1196 ibuf = calloc(1, sizeof(*ibuf));
1198 return got_error_from_errno();
1200 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1201 return got_error_from_errno();
1205 return got_error_from_errno();
1206 else if (pid == 0) {
1207 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_COMMIT,
1213 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd =
1215 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].pid = pid;
1216 imsg_init(ibuf, imsg_fds[0]);
1217 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf = ibuf;
1219 return request_commit(commit, repo, obj, obj_fd);
1222 static const struct got_error *
1223 request_tree(struct got_tree_object **tree, struct got_repository *repo,
1224 struct got_object *obj, int fd)
1226 const struct got_error *err = NULL;
1227 struct imsgbuf *ibuf;
1229 ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf;
1231 err = got_privsep_send_obj_req(ibuf, fd, obj);
1235 return got_privsep_recv_tree(tree, ibuf);
1238 const struct got_error *
1239 got_object_read_tree_privsep(struct got_tree_object **tree,
1240 struct got_object *obj, int obj_fd, struct got_repository *repo)
1244 struct imsgbuf *ibuf;
1246 if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd != -1)
1247 return request_tree(tree, repo, obj, obj_fd);
1249 ibuf = calloc(1, sizeof(*ibuf));
1251 return got_error_from_errno();
1253 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1254 return got_error_from_errno();
1258 return got_error_from_errno();
1259 else if (pid == 0) {
1260 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_TREE,
1267 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd =
1269 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].pid = pid;
1270 imsg_init(ibuf, imsg_fds[0]);
1271 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf = ibuf;
1274 return request_tree(tree, repo, obj, obj_fd);
1277 const struct got_error *
1278 got_object_read_packed_tree_privsep(struct got_tree_object **tree,
1279 struct got_object *obj, struct got_pack *pack)
1281 const struct got_error *err = NULL;
1283 err = got_privsep_send_obj_req(pack->privsep_child->ibuf, -1, obj);
1287 return got_privsep_recv_tree(tree, pack->privsep_child->ibuf);
1290 static const struct got_error *
1291 request_blob(size_t *size, int outfd, int infd, struct imsgbuf *ibuf)
1293 const struct got_error *err = NULL;
1296 outfd_child = dup(outfd);
1297 if (outfd_child == -1)
1298 return got_error_from_errno();
1300 err = got_privsep_send_blob_req(ibuf, infd);
1304 err = got_privsep_send_blob_outfd(ibuf, outfd_child);
1310 err = got_privsep_recv_blob(size, ibuf);
1314 if (lseek(outfd, SEEK_SET, 0) == -1)
1315 return got_error_from_errno();
1320 const struct got_error *
1321 got_object_read_blob_privsep(size_t *size, int outfd, int infd,
1322 struct got_repository *repo)
1326 struct imsgbuf *ibuf;
1328 if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd != -1) {
1329 ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf;
1330 return request_blob(size, outfd, infd, ibuf);
1333 ibuf = calloc(1, sizeof(*ibuf));
1335 return got_error_from_errno();
1337 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1338 return got_error_from_errno();
1342 return got_error_from_errno();
1343 else if (pid == 0) {
1344 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_BLOB,
1350 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd =
1352 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].pid = pid;
1353 imsg_init(ibuf, imsg_fds[0]);
1354 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf = ibuf;
1356 return request_blob(size, outfd, infd, ibuf);
1359 static const struct got_error *
1360 request_tag(struct got_tag_object **tag, struct got_repository *repo,
1361 struct got_object *obj, int fd)
1363 const struct got_error *err = NULL;
1364 struct imsgbuf *ibuf;
1366 ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf;
1368 err = got_privsep_send_obj_req(ibuf, fd, obj);
1372 return got_privsep_recv_tag(tag, ibuf);
1375 const struct got_error *
1376 got_object_read_packed_tag_privsep(struct got_tag_object **tag,
1377 struct got_object *obj, struct got_pack *pack)
1379 const struct got_error *err = NULL;
1381 err = got_privsep_send_obj_req(pack->privsep_child->ibuf, -1, obj);
1385 return got_privsep_recv_tag(tag, pack->privsep_child->ibuf);
1388 const struct got_error *
1389 got_object_read_tag_privsep(struct got_tag_object **tag,
1390 struct got_object *obj, int obj_fd, struct got_repository *repo)
1394 struct imsgbuf *ibuf;
1396 if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd != -1)
1397 return request_tag(tag, repo, obj, obj_fd);
1399 ibuf = calloc(1, sizeof(*ibuf));
1401 return got_error_from_errno();
1403 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1404 return got_error_from_errno();
1408 return got_error_from_errno();
1409 else if (pid == 0) {
1410 exec_privsep_child(imsg_fds, GOT_PATH_PROG_READ_TAG,
1416 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd =
1418 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].pid = pid;
1419 imsg_init(ibuf, imsg_fds[0]);
1420 repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf = ibuf;
1422 return request_tag(tag, repo, obj, obj_fd);