2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4 d71d75ad 2017-11-05 stsp * Permission to use, copy, modify, and distribute this software for any
5 d71d75ad 2017-11-05 stsp * purpose with or without fee is hereby granted, provided that the above
6 d71d75ad 2017-11-05 stsp * copyright notice and this permission notice appear in all copies.
8 d71d75ad 2017-11-05 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 d71d75ad 2017-11-05 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 d71d75ad 2017-11-05 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 d71d75ad 2017-11-05 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 d71d75ad 2017-11-05 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 d71d75ad 2017-11-05 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 d71d75ad 2017-11-05 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 2178c42e 2018-04-22 stsp #include <sys/types.h>
18 0ffeb3c2 2017-11-26 stsp #include <sys/stat.h>
19 0be8fa4c 2021-10-15 thomas #include <sys/queue.h>
20 0be8fa4c 2021-10-15 thomas #include <sys/tree.h>
21 2178c42e 2018-04-22 stsp #include <sys/uio.h>
22 2178c42e 2018-04-22 stsp #include <sys/socket.h>
23 2178c42e 2018-04-22 stsp #include <sys/wait.h>
24 b48e2ddb 2019-05-22 stsp #include <sys/resource.h>
26 a1fd68d8 2018-01-12 stsp #include <errno.h>
27 2178c42e 2018-04-22 stsp #include <fcntl.h>
28 d71d75ad 2017-11-05 stsp #include <stdio.h>
29 ab9a70b2 2017-11-06 stsp #include <stdlib.h>
30 ab9a70b2 2017-11-06 stsp #include <string.h>
31 2178c42e 2018-04-22 stsp #include <stdint.h>
32 81a12da5 2020-09-09 naddy #include <unistd.h>
33 ab9a70b2 2017-11-06 stsp #include <zlib.h>
34 ab9a70b2 2017-11-06 stsp #include <ctype.h>
35 e40622f4 2020-07-23 stsp #include <libgen.h>
36 ab9a70b2 2017-11-06 stsp #include <limits.h>
37 788c352e 2018-06-16 stsp #include <time.h>
39 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
41 ab9a70b2 2017-11-06 stsp #include "got_error.h"
42 d71d75ad 2017-11-05 stsp #include "got_object.h"
43 ab9a70b2 2017-11-06 stsp #include "got_repository.h"
44 511a516b 2018-05-19 stsp #include "got_opentemp.h"
45 324d37e7 2019-05-11 stsp #include "got_path.h"
47 718b3ab0 2018-03-17 stsp #include "got_lib_sha1.h"
48 718b3ab0 2018-03-17 stsp #include "got_lib_delta.h"
49 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
50 718b3ab0 2018-03-17 stsp #include "got_lib_object.h"
51 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
52 6bef87be 2018-09-11 stsp #include "got_lib_object_idcache.h"
53 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
54 ad242220 2018-09-08 stsp #include "got_lib_object_parse.h"
55 15a94983 2018-12-23 stsp #include "got_lib_pack.h"
56 7bb0daa1 2018-06-21 stsp #include "got_lib_repository.h"
59 ab9a70b2 2017-11-06 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
62 3235492e 2018-04-01 stsp struct got_object_id *
63 3235492e 2018-04-01 stsp got_object_get_id(struct got_object *obj)
65 6402fb3c 2018-09-15 stsp return &obj->id;
68 bacc9935 2018-05-20 stsp const struct got_error *
69 bacc9935 2018-05-20 stsp got_object_get_id_str(char **outbuf, struct got_object *obj)
71 bacc9935 2018-05-20 stsp return got_object_id_str(outbuf, &obj->id);
74 15a94983 2018-12-23 stsp const struct got_error *
75 15a94983 2018-12-23 stsp got_object_get_type(int *type, struct got_repository *repo,
76 15a94983 2018-12-23 stsp struct got_object_id *id)
78 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
79 15a94983 2018-12-23 stsp struct got_object *obj;
81 15a94983 2018-12-23 stsp err = got_object_open(&obj, repo, id);
85 b107e67f 2018-01-19 stsp switch (obj->type) {
86 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_COMMIT:
87 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_TREE:
88 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_BLOB:
89 b107e67f 2018-01-19 stsp case GOT_OBJ_TYPE_TAG:
90 15a94983 2018-12-23 stsp *type = obj->type;
93 15a94983 2018-12-23 stsp err = got_error(GOT_ERR_OBJ_TYPE);
97 15a94983 2018-12-23 stsp got_object_close(obj);
101 90bdb554 2019-04-11 stsp const struct got_error *
102 90bdb554 2019-04-11 stsp got_object_get_path(char **path, struct got_object_id *id,
103 90bdb554 2019-04-11 stsp struct got_repository *repo)
105 ab9a70b2 2017-11-06 stsp const struct got_error *err = NULL;
106 7a132809 2018-07-23 stsp char *hex = NULL;
107 41d2888b 2019-08-11 stsp char *path_objects;
109 e6b1056e 2018-04-22 stsp *path = NULL;
111 41d2888b 2019-08-11 stsp path_objects = got_repo_get_path_objects(repo);
112 ab9a70b2 2017-11-06 stsp if (path_objects == NULL)
113 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_objects");
115 ef0981d5 2018-02-12 stsp err = got_object_id_str(&hex, id);
119 d1cda826 2017-11-06 stsp if (asprintf(path, "%s/%.2x/%s", path_objects,
120 d1cda826 2017-11-06 stsp id->sha1[0], hex + 2) == -1)
121 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
125 d1cda826 2017-11-06 stsp free(path_objects);
126 d1cda826 2017-11-06 stsp return err;
129 762d73f4 2021-04-10 stsp const struct got_error *
130 762d73f4 2021-04-10 stsp got_object_open_loose_fd(int *fd, struct got_object_id *id,
131 4796fb13 2018-12-23 stsp struct got_repository *repo)
133 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
134 a1fd68d8 2018-01-12 stsp char *path;
136 90bdb554 2019-04-11 stsp err = got_object_get_path(&path, id, repo);
138 d1cda826 2017-11-06 stsp return err;
139 a5b57ccf 2019-04-11 stsp *fd = open(path, O_RDONLY | O_NOFOLLOW);
140 d5003b79 2018-04-22 stsp if (*fd == -1) {
141 e82b1d81 2019-07-27 stsp err = got_error_from_errno2("open", path);
145 4558fcd4 2018-01-14 stsp free(path);
146 2090a03d 2018-09-09 stsp return err;
149 2090a03d 2018-09-09 stsp static const struct got_error *
150 a158c901 2018-12-23 stsp request_packed_object(struct got_object **obj, struct got_pack *pack, int idx,
151 a158c901 2018-12-23 stsp struct got_object_id *id)
153 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
154 a158c901 2018-12-23 stsp struct imsgbuf *ibuf = pack->privsep_child->ibuf;
156 a158c901 2018-12-23 stsp err = got_privsep_send_packed_obj_req(ibuf, idx, id);
158 a158c901 2018-12-23 stsp return err;
160 a158c901 2018-12-23 stsp err = got_privsep_recv_obj(obj, ibuf);
162 a158c901 2018-12-23 stsp return err;
164 a158c901 2018-12-23 stsp memcpy(&(*obj)->id, id, sizeof((*obj)->id));
166 a158c901 2018-12-23 stsp return NULL;
169 59d1e4a0 2021-03-10 stsp static const struct got_error *
170 59d1e4a0 2021-03-10 stsp request_packed_object_raw(uint8_t **outbuf, off_t *size, size_t *hdrlen,
171 59d1e4a0 2021-03-10 stsp int outfd, struct got_pack *pack, int idx, struct got_object_id *id)
173 59d1e4a0 2021-03-10 stsp const struct got_error *err = NULL;
174 59d1e4a0 2021-03-10 stsp struct imsgbuf *ibuf = pack->privsep_child->ibuf;
175 59d1e4a0 2021-03-10 stsp int outfd_child;
176 59d1e4a0 2021-03-10 stsp int basefd, accumfd; /* temporary files for delta application */
178 59d1e4a0 2021-03-10 stsp basefd = got_opentempfd();
179 59d1e4a0 2021-03-10 stsp if (basefd == -1)
180 59d1e4a0 2021-03-10 stsp return got_error_from_errno("got_opentempfd");
182 59d1e4a0 2021-03-10 stsp accumfd = got_opentempfd();
183 59d1e4a0 2021-03-10 stsp if (accumfd == -1) {
184 59d1e4a0 2021-03-10 stsp close(basefd);
185 59d1e4a0 2021-03-10 stsp return got_error_from_errno("got_opentempfd");
188 59d1e4a0 2021-03-10 stsp outfd_child = dup(outfd);
189 59d1e4a0 2021-03-10 stsp if (outfd_child == -1) {
190 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("dup");
191 59d1e4a0 2021-03-10 stsp close(basefd);
192 59d1e4a0 2021-03-10 stsp close(accumfd);
193 59d1e4a0 2021-03-10 stsp return err;
196 59d1e4a0 2021-03-10 stsp err = got_privsep_send_packed_raw_obj_req(ibuf, idx, id);
198 59d1e4a0 2021-03-10 stsp close(basefd);
199 59d1e4a0 2021-03-10 stsp close(accumfd);
200 59d1e4a0 2021-03-10 stsp close(outfd_child);
201 59d1e4a0 2021-03-10 stsp return err;
204 59d1e4a0 2021-03-10 stsp err = got_privsep_send_raw_obj_outfd(ibuf, outfd_child);
206 59d1e4a0 2021-03-10 stsp close(basefd);
207 59d1e4a0 2021-03-10 stsp close(accumfd);
208 59d1e4a0 2021-03-10 stsp return err;
212 59d1e4a0 2021-03-10 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
215 59d1e4a0 2021-03-10 stsp close(accumfd);
216 59d1e4a0 2021-03-10 stsp return err;
219 59d1e4a0 2021-03-10 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
222 59d1e4a0 2021-03-10 stsp return err;
224 59d1e4a0 2021-03-10 stsp err = got_privsep_recv_raw_obj(outbuf, size, hdrlen, ibuf);
226 59d1e4a0 2021-03-10 stsp return err;
228 59d1e4a0 2021-03-10 stsp return NULL;
231 da506691 2019-05-22 stsp static void
232 b48e2ddb 2019-05-22 stsp set_max_datasize(void)
234 b48e2ddb 2019-05-22 stsp struct rlimit rl;
236 b48e2ddb 2019-05-22 stsp if (getrlimit(RLIMIT_DATA, &rl) != 0)
239 b48e2ddb 2019-05-22 stsp rl.rlim_cur = rl.rlim_max;
240 b48e2ddb 2019-05-22 stsp setrlimit(RLIMIT_DATA, &rl);
243 a158c901 2018-12-23 stsp static const struct got_error *
244 711fb6e8 2018-12-23 stsp start_pack_privsep_child(struct got_pack *pack, struct got_packidx *packidx)
246 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
247 a158c901 2018-12-23 stsp int imsg_fds[2];
249 a158c901 2018-12-23 stsp struct imsgbuf *ibuf;
251 a158c901 2018-12-23 stsp ibuf = calloc(1, sizeof(*ibuf));
252 a158c901 2018-12-23 stsp if (ibuf == NULL)
253 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
255 a158c901 2018-12-23 stsp pack->privsep_child = calloc(1, sizeof(*pack->privsep_child));
256 a158c901 2018-12-23 stsp if (pack->privsep_child == NULL) {
257 638f9024 2019-05-13 stsp err = got_error_from_errno("calloc");
258 a158c901 2018-12-23 stsp free(ibuf);
259 a158c901 2018-12-23 stsp return err;
262 a158c901 2018-12-23 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
263 638f9024 2019-05-13 stsp err = got_error_from_errno("socketpair");
267 a158c901 2018-12-23 stsp pid = fork();
268 a158c901 2018-12-23 stsp if (pid == -1) {
269 638f9024 2019-05-13 stsp err = got_error_from_errno("fork");
271 a158c901 2018-12-23 stsp } else if (pid == 0) {
272 b48e2ddb 2019-05-22 stsp set_max_datasize();
273 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_PACK,
274 a158c901 2018-12-23 stsp pack->path_packfile);
275 a158c901 2018-12-23 stsp /* not reached */
278 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1)
279 638f9024 2019-05-13 stsp return got_error_from_errno("close");
280 a158c901 2018-12-23 stsp pack->privsep_child->imsg_fd = imsg_fds[0];
281 a158c901 2018-12-23 stsp pack->privsep_child->pid = pid;
282 a158c901 2018-12-23 stsp imsg_init(ibuf, imsg_fds[0]);
283 a158c901 2018-12-23 stsp pack->privsep_child->ibuf = ibuf;
285 a158c901 2018-12-23 stsp err = got_privsep_init_pack_child(ibuf, pack, packidx);
287 a158c901 2018-12-23 stsp const struct got_error *child_err;
288 a158c901 2018-12-23 stsp err = got_privsep_send_stop(pack->privsep_child->imsg_fd);
289 a158c901 2018-12-23 stsp child_err = got_privsep_wait_for_child(
290 a158c901 2018-12-23 stsp pack->privsep_child->pid);
291 a158c901 2018-12-23 stsp if (child_err && err == NULL)
292 a158c901 2018-12-23 stsp err = child_err;
296 a158c901 2018-12-23 stsp free(ibuf);
297 a158c901 2018-12-23 stsp free(pack->privsep_child);
298 a158c901 2018-12-23 stsp pack->privsep_child = NULL;
300 a158c901 2018-12-23 stsp return err;
303 711fb6e8 2018-12-23 stsp static const struct got_error *
304 711fb6e8 2018-12-23 stsp read_packed_object_privsep(struct got_object **obj,
305 711fb6e8 2018-12-23 stsp struct got_repository *repo, struct got_pack *pack,
306 711fb6e8 2018-12-23 stsp struct got_packidx *packidx, int idx, struct got_object_id *id)
308 711fb6e8 2018-12-23 stsp const struct got_error *err = NULL;
310 59d1e4a0 2021-03-10 stsp if (pack->privsep_child == NULL) {
311 59d1e4a0 2021-03-10 stsp err = start_pack_privsep_child(pack, packidx);
313 59d1e4a0 2021-03-10 stsp return err;
316 711fb6e8 2018-12-23 stsp return request_packed_object(obj, pack, idx, id);
319 59d1e4a0 2021-03-10 stsp static const struct got_error *
320 59d1e4a0 2021-03-10 stsp read_packed_object_raw_privsep(uint8_t **outbuf, off_t *size, size_t *hdrlen,
321 59d1e4a0 2021-03-10 stsp int outfd, struct got_pack *pack, struct got_packidx *packidx, int idx,
322 59d1e4a0 2021-03-10 stsp struct got_object_id *id)
324 59d1e4a0 2021-03-10 stsp const struct got_error *err = NULL;
326 59d1e4a0 2021-03-10 stsp if (pack->privsep_child == NULL) {
327 59d1e4a0 2021-03-10 stsp err = start_pack_privsep_child(pack, packidx);
329 59d1e4a0 2021-03-10 stsp return err;
332 59d1e4a0 2021-03-10 stsp return request_packed_object_raw(outbuf, size, hdrlen, outfd, pack,
336 b3d68e7f 2021-07-03 stsp const struct got_error *
337 b3d68e7f 2021-07-03 stsp got_object_open_packed(struct got_object **obj, struct got_object_id *id,
338 2090a03d 2018-09-09 stsp struct got_repository *repo)
340 2090a03d 2018-09-09 stsp const struct got_error *err = NULL;
341 2090a03d 2018-09-09 stsp struct got_pack *pack = NULL;
342 2090a03d 2018-09-09 stsp struct got_packidx *packidx = NULL;
344 2090a03d 2018-09-09 stsp char *path_packfile;
346 2090a03d 2018-09-09 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
348 2090a03d 2018-09-09 stsp return err;
350 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
351 aea75d87 2021-07-06 stsp packidx->path_packidx);
353 2090a03d 2018-09-09 stsp return err;
355 2090a03d 2018-09-09 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
356 2090a03d 2018-09-09 stsp if (pack == NULL) {
357 2090a03d 2018-09-09 stsp err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
362 a158c901 2018-12-23 stsp err = read_packed_object_privsep(obj, repo, pack, packidx, idx, id);
366 2090a03d 2018-09-09 stsp free(path_packfile);
367 4558fcd4 2018-01-14 stsp return err;
370 9f2369b0 2018-12-24 stsp static const struct got_error *
371 d5c81d44 2021-07-08 stsp request_object(struct got_object **obj, struct got_object_id *id,
372 d5c81d44 2021-07-08 stsp struct got_repository *repo, int fd)
374 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
375 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
377 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf;
379 d5c81d44 2021-07-08 stsp err = got_privsep_send_obj_req(ibuf, fd, id);
381 9f2369b0 2018-12-24 stsp return err;
383 9f2369b0 2018-12-24 stsp return got_privsep_recv_obj(obj, ibuf);
386 9f2369b0 2018-12-24 stsp static const struct got_error *
387 59d1e4a0 2021-03-10 stsp request_raw_object(uint8_t **outbuf, off_t *size, size_t *hdrlen, int outfd,
388 d5c81d44 2021-07-08 stsp struct got_object_id *id, struct got_repository *repo, int infd)
390 59d1e4a0 2021-03-10 stsp const struct got_error *err = NULL;
391 59d1e4a0 2021-03-10 stsp struct imsgbuf *ibuf;
392 59d1e4a0 2021-03-10 stsp int outfd_child;
394 59d1e4a0 2021-03-10 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf;
396 59d1e4a0 2021-03-10 stsp outfd_child = dup(outfd);
397 59d1e4a0 2021-03-10 stsp if (outfd_child == -1)
398 59d1e4a0 2021-03-10 stsp return got_error_from_errno("dup");
400 d5c81d44 2021-07-08 stsp err = got_privsep_send_raw_obj_req(ibuf, infd, id);
402 59d1e4a0 2021-03-10 stsp return err;
404 59d1e4a0 2021-03-10 stsp err = got_privsep_send_raw_obj_outfd(ibuf, outfd_child);
406 59d1e4a0 2021-03-10 stsp return err;
408 59d1e4a0 2021-03-10 stsp return got_privsep_recv_raw_obj(outbuf, size, hdrlen, ibuf);
411 59d1e4a0 2021-03-10 stsp static const struct got_error *
412 59d1e4a0 2021-03-10 stsp start_read_object_child(struct got_repository *repo)
414 59d1e4a0 2021-03-10 stsp const struct got_error *err = NULL;
415 9f2369b0 2018-12-24 stsp int imsg_fds[2];
417 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
419 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
420 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
421 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
423 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
424 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
425 ddc7b220 2019-09-08 stsp free(ibuf);
426 ddc7b220 2019-09-08 stsp return err;
429 9f2369b0 2018-12-24 stsp pid = fork();
430 ddc7b220 2019-09-08 stsp if (pid == -1) {
431 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
432 ddc7b220 2019-09-08 stsp free(ibuf);
433 ddc7b220 2019-09-08 stsp return err;
435 9f2369b0 2018-12-24 stsp else if (pid == 0) {
436 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_OBJECT,
437 9f2369b0 2018-12-24 stsp repo->path);
438 9f2369b0 2018-12-24 stsp /* not reached */
441 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1) {
442 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
443 ddc7b220 2019-09-08 stsp free(ibuf);
444 ddc7b220 2019-09-08 stsp return err;
447 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd =
448 9f2369b0 2018-12-24 stsp imsg_fds[0];
449 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].pid = pid;
450 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
451 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf = ibuf;
453 59d1e4a0 2021-03-10 stsp return NULL;
456 b3d68e7f 2021-07-03 stsp const struct got_error *
457 b3d68e7f 2021-07-03 stsp got_object_read_header_privsep(struct got_object **obj,
458 d5c81d44 2021-07-08 stsp struct got_object_id *id, struct got_repository *repo, int obj_fd)
460 59d1e4a0 2021-03-10 stsp const struct got_error *err;
462 59d1e4a0 2021-03-10 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd != -1)
463 d5c81d44 2021-07-08 stsp return request_object(obj, id, repo, obj_fd);
465 59d1e4a0 2021-03-10 stsp err = start_read_object_child(repo);
467 7495ec13 2021-04-04 stsp close(obj_fd);
468 59d1e4a0 2021-03-10 stsp return err;
471 d5c81d44 2021-07-08 stsp return request_object(obj, id, repo, obj_fd);
474 59d1e4a0 2021-03-10 stsp static const struct got_error *
475 59d1e4a0 2021-03-10 stsp read_object_raw_privsep(uint8_t **outbuf, off_t *size, size_t *hdrlen,
476 d5c81d44 2021-07-08 stsp int outfd, struct got_object_id *id, struct got_repository *repo,
477 d5c81d44 2021-07-08 stsp int obj_fd)
479 59d1e4a0 2021-03-10 stsp const struct got_error *err;
481 59d1e4a0 2021-03-10 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd != -1)
482 d5c81d44 2021-07-08 stsp return request_raw_object(outbuf, size, hdrlen, outfd, id,
483 d5c81d44 2021-07-08 stsp repo, obj_fd);
485 59d1e4a0 2021-03-10 stsp err = start_read_object_child(repo);
487 59d1e4a0 2021-03-10 stsp return err;
489 d5c81d44 2021-07-08 stsp return request_raw_object(outbuf, size, hdrlen, outfd, id, repo,
493 4558fcd4 2018-01-14 stsp const struct got_error *
494 4558fcd4 2018-01-14 stsp got_object_open(struct got_object **obj, struct got_repository *repo,
495 4558fcd4 2018-01-14 stsp struct got_object_id *id)
497 6c00b545 2018-01-17 stsp const struct got_error *err = NULL;
500 7bb0daa1 2018-06-21 stsp *obj = got_repo_get_cached_object(repo, id);
501 7bb0daa1 2018-06-21 stsp if (*obj != NULL) {
502 7bb0daa1 2018-06-21 stsp (*obj)->refcnt++;
503 7bb0daa1 2018-06-21 stsp return NULL;
506 b3d68e7f 2021-07-03 stsp err = got_object_open_packed(obj, id, repo);
507 e82b1d81 2019-07-27 stsp if (err && err->code != GOT_ERR_NO_OBJ)
508 e82b1d81 2019-07-27 stsp return err;
509 e82b1d81 2019-07-27 stsp if (*obj) {
510 e82b1d81 2019-07-27 stsp (*obj)->refcnt++;
511 e82b1d81 2019-07-27 stsp return got_repo_cache_object(repo, id, *obj);
514 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
516 762d73f4 2021-04-10 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
517 762d73f4 2021-04-10 stsp err = got_error_no_obj(id);
518 762d73f4 2021-04-10 stsp return err;
521 d5c81d44 2021-07-08 stsp err = got_object_read_header_privsep(obj, id, repo, fd);
523 4558fcd4 2018-01-14 stsp return err;
525 762d73f4 2021-04-10 stsp memcpy((*obj)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
527 59790a32 2018-09-15 stsp (*obj)->refcnt++;
528 762d73f4 2021-04-10 stsp return got_repo_cache_object(repo, id, *obj);
531 8ab9215c 2021-10-15 thomas /* *outfd must be initialized to -1 by caller */
532 59d1e4a0 2021-03-10 stsp const struct got_error *
533 8ab9215c 2021-10-15 thomas got_object_raw_open(struct got_raw_object **obj, int *outfd,
534 ecf9545f 2021-10-15 thomas struct got_repository *repo, struct got_object_id *id, size_t blocksize)
536 59d1e4a0 2021-03-10 stsp const struct got_error *err = NULL;
537 59d1e4a0 2021-03-10 stsp struct got_packidx *packidx = NULL;
539 59d1e4a0 2021-03-10 stsp uint8_t *outbuf = NULL;
540 59d1e4a0 2021-03-10 stsp off_t size = 0;
541 59d1e4a0 2021-03-10 stsp size_t hdrlen = 0;
542 59d1e4a0 2021-03-10 stsp char *path_packfile = NULL;
544 8ab9215c 2021-10-15 thomas *obj = got_repo_get_cached_raw_object(repo, id);
545 8ab9215c 2021-10-15 thomas if (*obj != NULL) {
546 8ab9215c 2021-10-15 thomas (*obj)->refcnt++;
547 8ab9215c 2021-10-15 thomas return NULL;
550 8ab9215c 2021-10-15 thomas if (*outfd == -1) {
551 8ab9215c 2021-10-15 thomas *outfd = got_opentempfd();
552 8ab9215c 2021-10-15 thomas if (*outfd == -1)
553 8ab9215c 2021-10-15 thomas return got_error_from_errno("got_opentempfd");
556 59d1e4a0 2021-03-10 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
557 59d1e4a0 2021-03-10 stsp if (err == NULL) {
558 59d1e4a0 2021-03-10 stsp struct got_pack *pack = NULL;
560 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
561 aea75d87 2021-07-06 stsp packidx->path_packidx);
565 59d1e4a0 2021-03-10 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
566 59d1e4a0 2021-03-10 stsp if (pack == NULL) {
567 59d1e4a0 2021-03-10 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
572 59d1e4a0 2021-03-10 stsp err = read_packed_object_raw_privsep(&outbuf, &size, &hdrlen,
573 8ab9215c 2021-10-15 thomas *outfd, pack, packidx, idx, id);
575 dd3af45a 2021-10-15 thomas goto done;
576 59d1e4a0 2021-03-10 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
579 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
582 8ab9215c 2021-10-15 thomas err = read_object_raw_privsep(&outbuf, &size, &hdrlen, *outfd,
583 d5c81d44 2021-07-08 stsp id, repo, fd);
585 dd3af45a 2021-10-15 thomas goto done;
588 59d1e4a0 2021-03-10 stsp *obj = calloc(1, sizeof(**obj));
589 59d1e4a0 2021-03-10 stsp if (*obj == NULL) {
590 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("calloc");
594 59d1e4a0 2021-03-10 stsp (*obj)->read_buf = malloc(blocksize);
595 59d1e4a0 2021-03-10 stsp if ((*obj)->read_buf == NULL) {
596 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("malloc");
600 59d1e4a0 2021-03-10 stsp if (outbuf) {
601 59d1e4a0 2021-03-10 stsp (*obj)->f = fmemopen(outbuf, hdrlen + size, "r");
602 59d1e4a0 2021-03-10 stsp if ((*obj)->f == NULL) {
603 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("fdopen");
606 59d1e4a0 2021-03-10 stsp (*obj)->data = outbuf;
608 59d1e4a0 2021-03-10 stsp struct stat sb;
609 8ab9215c 2021-10-15 thomas if (fstat(*outfd, &sb) == -1) {
610 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("fstat");
614 a8591711 2021-06-18 stsp if (sb.st_size != hdrlen + size) {
615 59d1e4a0 2021-03-10 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
619 8ab9215c 2021-10-15 thomas (*obj)->f = fdopen(*outfd, "r");
620 59d1e4a0 2021-03-10 stsp if ((*obj)->f == NULL) {
621 59d1e4a0 2021-03-10 stsp err = got_error_from_errno("fdopen");
624 59d1e4a0 2021-03-10 stsp (*obj)->data = NULL;
625 8ab9215c 2021-10-15 thomas *outfd = -1;
627 59d1e4a0 2021-03-10 stsp (*obj)->hdrlen = hdrlen;
628 59d1e4a0 2021-03-10 stsp (*obj)->size = size;
629 59d1e4a0 2021-03-10 stsp (*obj)->blocksize = blocksize;
630 8ab9215c 2021-10-15 thomas err = got_repo_cache_raw_object(repo, id, *obj);
632 59d1e4a0 2021-03-10 stsp free(path_packfile);
634 59d1e4a0 2021-03-10 stsp if (*obj) {
635 59d1e4a0 2021-03-10 stsp got_object_raw_close(*obj);
636 59d1e4a0 2021-03-10 stsp *obj = NULL;
638 59d1e4a0 2021-03-10 stsp free(outbuf);
640 8ab9215c 2021-10-15 thomas (*obj)->refcnt++;
641 59d1e4a0 2021-03-10 stsp return err;
644 59d1e4a0 2021-03-10 stsp const struct got_error *
645 6dfa2fd3 2018-02-12 stsp got_object_open_by_id_str(struct got_object **obj, struct got_repository *repo,
646 6dfa2fd3 2018-02-12 stsp const char *id_str)
648 6dfa2fd3 2018-02-12 stsp struct got_object_id id;
650 6dfa2fd3 2018-02-12 stsp if (!got_parse_sha1_digest(id.sha1, id_str))
651 6dd1ece6 2019-11-10 stsp return got_error_path(id_str, GOT_ERR_BAD_OBJ_ID_STR);
653 6dfa2fd3 2018-02-12 stsp return got_object_open(obj, repo, &id);
656 15a94983 2018-12-23 stsp const struct got_error *
657 15a94983 2018-12-23 stsp got_object_resolve_id_str(struct got_object_id **id,
658 15a94983 2018-12-23 stsp struct got_repository *repo, const char *id_str)
660 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
661 15a94983 2018-12-23 stsp struct got_object *obj;
663 15a94983 2018-12-23 stsp err = got_object_open_by_id_str(&obj, repo, id_str);
665 15a94983 2018-12-23 stsp return err;
667 15a94983 2018-12-23 stsp *id = got_object_id_dup(got_object_get_id(obj));
668 15a94983 2018-12-23 stsp got_object_close(obj);
669 15a94983 2018-12-23 stsp if (*id == NULL)
670 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
672 15a94983 2018-12-23 stsp return NULL;
675 434025f3 2018-09-16 stsp static const struct got_error *
676 a158c901 2018-12-23 stsp request_packed_commit(struct got_commit_object **commit, struct got_pack *pack,
677 a158c901 2018-12-23 stsp int pack_idx, struct got_object_id *id)
679 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
681 a158c901 2018-12-23 stsp err = got_privsep_send_commit_req(pack->privsep_child->ibuf, -1, id,
684 a158c901 2018-12-23 stsp return err;
686 ca6e02ac 2020-01-07 stsp err = got_privsep_recv_commit(commit, pack->privsep_child->ibuf);
688 ca6e02ac 2020-01-07 stsp return err;
690 ca6e02ac 2020-01-07 stsp (*commit)->flags |= GOT_COMMIT_FLAG_PACKED;
691 ca6e02ac 2020-01-07 stsp return NULL;
694 a158c901 2018-12-23 stsp static const struct got_error *
695 a158c901 2018-12-23 stsp read_packed_commit_privsep(struct got_commit_object **commit,
696 a158c901 2018-12-23 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
697 a158c901 2018-12-23 stsp struct got_object_id *id)
699 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
701 a158c901 2018-12-23 stsp if (pack->privsep_child)
702 a158c901 2018-12-23 stsp return request_packed_commit(commit, pack, idx, id);
704 711fb6e8 2018-12-23 stsp err = start_pack_privsep_child(pack, packidx);
706 a158c901 2018-12-23 stsp return err;
708 711fb6e8 2018-12-23 stsp return request_packed_commit(commit, pack, idx, id);
711 9f2369b0 2018-12-24 stsp static const struct got_error *
712 9f2369b0 2018-12-24 stsp request_commit(struct got_commit_object **commit, struct got_repository *repo,
713 d5c81d44 2021-07-08 stsp int fd, struct got_object_id *id)
715 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
716 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
718 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf;
720 d5c81d44 2021-07-08 stsp err = got_privsep_send_commit_req(ibuf, fd, id, -1);
722 9f2369b0 2018-12-24 stsp return err;
724 9f2369b0 2018-12-24 stsp return got_privsep_recv_commit(commit, ibuf);
727 9f2369b0 2018-12-24 stsp static const struct got_error *
728 9f2369b0 2018-12-24 stsp read_commit_privsep(struct got_commit_object **commit, int obj_fd,
729 d5c81d44 2021-07-08 stsp struct got_object_id *id, struct got_repository *repo)
731 ddc7b220 2019-09-08 stsp const struct got_error *err;
732 9f2369b0 2018-12-24 stsp int imsg_fds[2];
734 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
736 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd != -1)
737 d5c81d44 2021-07-08 stsp return request_commit(commit, repo, obj_fd, id);
739 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
740 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
741 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
743 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
744 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
745 ddc7b220 2019-09-08 stsp free(ibuf);
746 ddc7b220 2019-09-08 stsp return err;
749 9f2369b0 2018-12-24 stsp pid = fork();
750 ddc7b220 2019-09-08 stsp if (pid == -1) {
751 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
752 ddc7b220 2019-09-08 stsp free(ibuf);
753 ddc7b220 2019-09-08 stsp return err;
755 9f2369b0 2018-12-24 stsp else if (pid == 0) {
756 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_COMMIT,
757 9f2369b0 2018-12-24 stsp repo->path);
758 9f2369b0 2018-12-24 stsp /* not reached */
761 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1) {
762 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
763 ddc7b220 2019-09-08 stsp free(ibuf);
764 ddc7b220 2019-09-08 stsp return err;
766 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd =
767 9f2369b0 2018-12-24 stsp imsg_fds[0];
768 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].pid = pid;
769 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
770 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf = ibuf;
772 d5c81d44 2021-07-08 stsp return request_commit(commit, repo, obj_fd, id);
776 a158c901 2018-12-23 stsp static const struct got_error *
777 434025f3 2018-09-16 stsp open_commit(struct got_commit_object **commit,
778 1785f84a 2018-12-23 stsp struct got_repository *repo, struct got_object_id *id, int check_cache)
780 434025f3 2018-09-16 stsp const struct got_error *err = NULL;
781 1785f84a 2018-12-23 stsp struct got_packidx *packidx = NULL;
783 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
785 434025f3 2018-09-16 stsp if (check_cache) {
786 1785f84a 2018-12-23 stsp *commit = got_repo_get_cached_commit(repo, id);
787 434025f3 2018-09-16 stsp if (*commit != NULL) {
788 434025f3 2018-09-16 stsp (*commit)->refcnt++;
789 434025f3 2018-09-16 stsp return NULL;
792 434025f3 2018-09-16 stsp *commit = NULL;
794 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
795 e82b1d81 2019-07-27 stsp if (err == NULL) {
796 1785f84a 2018-12-23 stsp struct got_pack *pack = NULL;
798 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
799 aea75d87 2021-07-06 stsp packidx->path_packidx);
801 1785f84a 2018-12-23 stsp return err;
803 1785f84a 2018-12-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
804 434025f3 2018-09-16 stsp if (pack == NULL) {
805 1785f84a 2018-12-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
810 a158c901 2018-12-23 stsp err = read_packed_commit_privsep(commit, pack,
811 1785f84a 2018-12-23 stsp packidx, idx, id);
812 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
815 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
817 e82b1d81 2019-07-27 stsp return err;
818 d5c81d44 2021-07-08 stsp err = read_commit_privsep(commit, fd, id, repo);
821 434025f3 2018-09-16 stsp if (err == NULL) {
822 434025f3 2018-09-16 stsp (*commit)->refcnt++;
823 1785f84a 2018-12-23 stsp err = got_repo_cache_commit(repo, id, *commit);
826 8d2c5ea3 2019-08-13 stsp free(path_packfile);
827 e32baab7 2018-11-05 stsp return err;
830 e32baab7 2018-11-05 stsp const struct got_error *
831 e32baab7 2018-11-05 stsp got_object_open_as_commit(struct got_commit_object **commit,
832 e32baab7 2018-11-05 stsp struct got_repository *repo, struct got_object_id *id)
834 e32baab7 2018-11-05 stsp *commit = got_repo_get_cached_commit(repo, id);
835 e32baab7 2018-11-05 stsp if (*commit != NULL) {
836 e32baab7 2018-11-05 stsp (*commit)->refcnt++;
837 e32baab7 2018-11-05 stsp return NULL;
840 1785f84a 2018-12-23 stsp return open_commit(commit, repo, id, 0);
843 e32baab7 2018-11-05 stsp const struct got_error *
844 e32baab7 2018-11-05 stsp got_object_commit_open(struct got_commit_object **commit,
845 e32baab7 2018-11-05 stsp struct got_repository *repo, struct got_object *obj)
847 1785f84a 2018-12-23 stsp return open_commit(commit, repo, got_object_get_id(obj), 1);
850 434025f3 2018-09-16 stsp const struct got_error *
851 dbc6a6b6 2018-07-12 stsp got_object_qid_alloc(struct got_object_qid **qid, struct got_object_id *id)
853 dbc6a6b6 2018-07-12 stsp const struct got_error *err = NULL;
855 dbc6a6b6 2018-07-12 stsp *qid = calloc(1, sizeof(**qid));
856 dbc6a6b6 2018-07-12 stsp if (*qid == NULL)
857 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
859 dbc6a6b6 2018-07-12 stsp (*qid)->id = got_object_id_dup(id);
860 dbc6a6b6 2018-07-12 stsp if ((*qid)->id == NULL) {
861 638f9024 2019-05-13 stsp err = got_error_from_errno("got_object_id_dup");
862 fa2f6902 2018-07-23 stsp got_object_qid_free(*qid);
863 dbc6a6b6 2018-07-12 stsp *qid = NULL;
864 dbc6a6b6 2018-07-12 stsp return err;
867 9ca9aafb 2021-06-18 stsp return NULL;
870 9ca9aafb 2021-06-18 stsp const struct got_error *
871 9ca9aafb 2021-06-18 stsp got_object_id_queue_copy(const struct got_object_id_queue *src,
872 9ca9aafb 2021-06-18 stsp struct got_object_id_queue *dest)
874 9ca9aafb 2021-06-18 stsp const struct got_error *err;
875 9ca9aafb 2021-06-18 stsp struct got_object_qid *qid;
877 dbdddfee 2021-06-23 naddy STAILQ_FOREACH(qid, src, entry) {
878 9ca9aafb 2021-06-18 stsp struct got_object_qid *new;
880 9ca9aafb 2021-06-18 stsp * Deep-copy the object ID only. Let the caller deal
881 9ca9aafb 2021-06-18 stsp * with setting up the new->data pointer if needed.
883 9ca9aafb 2021-06-18 stsp err = got_object_qid_alloc(&new, qid->id);
885 9ca9aafb 2021-06-18 stsp got_object_id_queue_free(dest);
886 9ca9aafb 2021-06-18 stsp return err;
888 dbdddfee 2021-06-23 naddy STAILQ_INSERT_TAIL(dest, new, entry);
891 dbc6a6b6 2018-07-12 stsp return NULL;
894 a158c901 2018-12-23 stsp static const struct got_error *
895 13c729f7 2018-12-24 stsp request_packed_tree(struct got_tree_object **tree, struct got_pack *pack,
896 13c729f7 2018-12-24 stsp int pack_idx, struct got_object_id *id)
898 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
900 13c729f7 2018-12-24 stsp err = got_privsep_send_tree_req(pack->privsep_child->ibuf, -1, id,
903 a158c901 2018-12-23 stsp return err;
905 a158c901 2018-12-23 stsp return got_privsep_recv_tree(tree, pack->privsep_child->ibuf);
908 71eb0e7f 2018-09-16 stsp static const struct got_error *
909 13c729f7 2018-12-24 stsp read_packed_tree_privsep(struct got_tree_object **tree,
910 13c729f7 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
911 13c729f7 2018-12-24 stsp struct got_object_id *id)
913 13c729f7 2018-12-24 stsp const struct got_error *err = NULL;
915 13c729f7 2018-12-24 stsp if (pack->privsep_child)
916 13c729f7 2018-12-24 stsp return request_packed_tree(tree, pack, idx, id);
918 13c729f7 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
920 13c729f7 2018-12-24 stsp return err;
922 13c729f7 2018-12-24 stsp return request_packed_tree(tree, pack, idx, id);
925 13c729f7 2018-12-24 stsp static const struct got_error *
926 9f2369b0 2018-12-24 stsp request_tree(struct got_tree_object **tree, struct got_repository *repo,
927 d5c81d44 2021-07-08 stsp int fd, struct got_object_id *id)
929 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
930 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
932 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf;
934 d5c81d44 2021-07-08 stsp err = got_privsep_send_tree_req(ibuf, fd, id, -1);
936 9f2369b0 2018-12-24 stsp return err;
938 9f2369b0 2018-12-24 stsp return got_privsep_recv_tree(tree, ibuf);
941 9f2369b0 2018-12-24 stsp const struct got_error *
942 9f2369b0 2018-12-24 stsp read_tree_privsep(struct got_tree_object **tree, int obj_fd,
943 d5c81d44 2021-07-08 stsp struct got_object_id *id, struct got_repository *repo)
945 ddc7b220 2019-09-08 stsp const struct got_error *err;
946 9f2369b0 2018-12-24 stsp int imsg_fds[2];
948 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
950 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd != -1)
951 d5c81d44 2021-07-08 stsp return request_tree(tree, repo, obj_fd, id);
953 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
954 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
955 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
957 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
958 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
959 ddc7b220 2019-09-08 stsp free(ibuf);
960 ddc7b220 2019-09-08 stsp return err;
963 9f2369b0 2018-12-24 stsp pid = fork();
964 ddc7b220 2019-09-08 stsp if (pid == -1) {
965 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
966 ddc7b220 2019-09-08 stsp free(ibuf);
967 ddc7b220 2019-09-08 stsp return err;
969 9f2369b0 2018-12-24 stsp else if (pid == 0) {
970 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_TREE,
971 9f2369b0 2018-12-24 stsp repo->path);
972 9f2369b0 2018-12-24 stsp /* not reached */
975 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1) {
976 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
977 ddc7b220 2019-09-08 stsp free(ibuf);
978 ddc7b220 2019-09-08 stsp return err;
980 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd =
981 9f2369b0 2018-12-24 stsp imsg_fds[0];
982 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].pid = pid;
983 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
984 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf = ibuf;
987 d5c81d44 2021-07-08 stsp return request_tree(tree, repo, obj_fd, id);
990 9f2369b0 2018-12-24 stsp static const struct got_error *
991 13c729f7 2018-12-24 stsp open_tree(struct got_tree_object **tree, struct got_repository *repo,
992 13c729f7 2018-12-24 stsp struct got_object_id *id, int check_cache)
994 0ffeb3c2 2017-11-26 stsp const struct got_error *err = NULL;
995 13c729f7 2018-12-24 stsp struct got_packidx *packidx = NULL;
997 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
999 71eb0e7f 2018-09-16 stsp if (check_cache) {
1000 13c729f7 2018-12-24 stsp *tree = got_repo_get_cached_tree(repo, id);
1001 71eb0e7f 2018-09-16 stsp if (*tree != NULL) {
1002 71eb0e7f 2018-09-16 stsp (*tree)->refcnt++;
1003 71eb0e7f 2018-09-16 stsp return NULL;
1006 71eb0e7f 2018-09-16 stsp *tree = NULL;
1008 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
1009 e82b1d81 2019-07-27 stsp if (err == NULL) {
1010 13c729f7 2018-12-24 stsp struct got_pack *pack = NULL;
1012 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
1013 aea75d87 2021-07-06 stsp packidx->path_packidx);
1015 13c729f7 2018-12-24 stsp return err;
1017 13c729f7 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1018 e7885405 2018-09-10 stsp if (pack == NULL) {
1019 e82b1d81 2019-07-27 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
1022 8d2c5ea3 2019-08-13 stsp goto done;
1024 13c729f7 2018-12-24 stsp err = read_packed_tree_privsep(tree, pack,
1025 13c729f7 2018-12-24 stsp packidx, idx, id);
1026 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
1029 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
1031 e82b1d81 2019-07-27 stsp return err;
1032 d5c81d44 2021-07-08 stsp err = read_tree_privsep(tree, fd, id, repo);
1035 f6be5c30 2018-06-22 stsp if (err == NULL) {
1036 f6be5c30 2018-06-22 stsp (*tree)->refcnt++;
1037 13c729f7 2018-12-24 stsp err = got_repo_cache_tree(repo, id, *tree);
1040 8d2c5ea3 2019-08-13 stsp free(path_packfile);
1041 776d4d29 2018-06-17 stsp return err;
1044 776d4d29 2018-06-17 stsp const struct got_error *
1045 776d4d29 2018-06-17 stsp got_object_open_as_tree(struct got_tree_object **tree,
1046 776d4d29 2018-06-17 stsp struct got_repository *repo, struct got_object_id *id)
1048 e8eb494a 2018-09-16 stsp *tree = got_repo_get_cached_tree(repo, id);
1049 e8eb494a 2018-09-16 stsp if (*tree != NULL) {
1050 e8eb494a 2018-09-16 stsp (*tree)->refcnt++;
1051 e8eb494a 2018-09-16 stsp return NULL;
1054 13c729f7 2018-12-24 stsp return open_tree(tree, repo, id, 0);
1057 71eb0e7f 2018-09-16 stsp const struct got_error *
1058 71eb0e7f 2018-09-16 stsp got_object_tree_open(struct got_tree_object **tree,
1059 71eb0e7f 2018-09-16 stsp struct got_repository *repo, struct got_object *obj)
1061 13c729f7 2018-12-24 stsp return open_tree(tree, repo, got_object_get_id(obj), 1);
1065 56e0773d 2019-11-28 stsp got_object_tree_get_nentries(struct got_tree_object *tree)
1067 56e0773d 2019-11-28 stsp return tree->nentries;
1070 56e0773d 2019-11-28 stsp struct got_tree_entry *
1071 56e0773d 2019-11-28 stsp got_object_tree_get_first_entry(struct got_tree_object *tree)
1073 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, 0);
1076 56e0773d 2019-11-28 stsp struct got_tree_entry *
1077 56e0773d 2019-11-28 stsp got_object_tree_get_last_entry(struct got_tree_object *tree)
1079 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, tree->nentries - 1);
1082 56e0773d 2019-11-28 stsp struct got_tree_entry *
1083 56e0773d 2019-11-28 stsp got_object_tree_get_entry(struct got_tree_object *tree, int i)
1085 56e0773d 2019-11-28 stsp if (i < 0 || i >= tree->nentries)
1086 56e0773d 2019-11-28 stsp return NULL;
1087 56e0773d 2019-11-28 stsp return &tree->entries[i];
1091 56e0773d 2019-11-28 stsp got_tree_entry_get_mode(struct got_tree_entry *te)
1093 56e0773d 2019-11-28 stsp return te->mode;
1096 56e0773d 2019-11-28 stsp const char *
1097 56e0773d 2019-11-28 stsp got_tree_entry_get_name(struct got_tree_entry *te)
1099 56e0773d 2019-11-28 stsp return &te->name[0];
1102 56e0773d 2019-11-28 stsp struct got_object_id *
1103 56e0773d 2019-11-28 stsp got_tree_entry_get_id(struct got_tree_entry *te)
1105 56e0773d 2019-11-28 stsp return &te->id;
1108 0d6c6ee3 2020-05-20 stsp const struct got_error *
1109 af57b12a 2020-07-23 stsp got_object_blob_read_to_str(char **s, struct got_blob_object *blob)
1111 0d6c6ee3 2020-05-20 stsp const struct got_error *err = NULL;
1112 32596e16 2020-07-23 stsp size_t len, totlen, hdrlen, offset;
1114 aa092692 2020-07-23 stsp *s = NULL;
1116 659dc16e 2020-07-23 stsp hdrlen = got_object_blob_get_hdrlen(blob);
1117 659dc16e 2020-07-23 stsp totlen = 0;
1118 32596e16 2020-07-23 stsp offset = 0;
1122 659dc16e 2020-07-23 stsp err = got_object_blob_read_block(&len, blob);
1124 af57b12a 2020-07-23 stsp return err;
1126 659dc16e 2020-07-23 stsp if (len == 0)
1129 659dc16e 2020-07-23 stsp totlen += len - hdrlen;
1130 af57b12a 2020-07-23 stsp p = realloc(*s, totlen + 1);
1131 659dc16e 2020-07-23 stsp if (p == NULL) {
1132 659dc16e 2020-07-23 stsp err = got_error_from_errno("realloc");
1134 af57b12a 2020-07-23 stsp *s = NULL;
1135 af57b12a 2020-07-23 stsp return err;
1138 659dc16e 2020-07-23 stsp /* Skip blob object header first time around. */
1139 af57b12a 2020-07-23 stsp memcpy(*s + offset,
1140 f8f7c882 2020-07-23 stsp got_object_blob_get_read_buf(blob) + hdrlen, len - hdrlen);
1141 659dc16e 2020-07-23 stsp hdrlen = 0;
1142 32596e16 2020-07-23 stsp offset = totlen;
1143 659dc16e 2020-07-23 stsp } while (len > 0);
1145 af57b12a 2020-07-23 stsp (*s)[totlen] = '\0';
1146 af57b12a 2020-07-23 stsp return NULL;
1149 af57b12a 2020-07-23 stsp const struct got_error *
1150 af57b12a 2020-07-23 stsp got_tree_entry_get_symlink_target(char **link_target, struct got_tree_entry *te,
1151 af57b12a 2020-07-23 stsp struct got_repository *repo)
1153 af57b12a 2020-07-23 stsp const struct got_error *err = NULL;
1154 af57b12a 2020-07-23 stsp struct got_blob_object *blob = NULL;
1156 af57b12a 2020-07-23 stsp *link_target = NULL;
1158 af57b12a 2020-07-23 stsp if (!got_object_tree_entry_is_symlink(te))
1159 af57b12a 2020-07-23 stsp return got_error(GOT_ERR_TREE_ENTRY_TYPE);
1161 af57b12a 2020-07-23 stsp err = got_object_open_as_blob(&blob, repo,
1162 af57b12a 2020-07-23 stsp got_tree_entry_get_id(te), PATH_MAX);
1164 af57b12a 2020-07-23 stsp return err;
1166 af57b12a 2020-07-23 stsp err = got_object_blob_read_to_str(link_target, blob);
1167 af57b12a 2020-07-23 stsp got_object_blob_close(blob);
1168 659dc16e 2020-07-23 stsp if (err) {
1169 659dc16e 2020-07-23 stsp free(*link_target);
1170 659dc16e 2020-07-23 stsp *link_target = NULL;
1172 0d6c6ee3 2020-05-20 stsp return err;
1176 56e0773d 2019-11-28 stsp got_tree_entry_get_index(struct got_tree_entry *te)
1178 56e0773d 2019-11-28 stsp return te->idx;
1181 56e0773d 2019-11-28 stsp struct got_tree_entry *
1182 56e0773d 2019-11-28 stsp got_tree_entry_get_next(struct got_tree_object *tree,
1183 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
1185 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx + 1);
1188 56e0773d 2019-11-28 stsp struct got_tree_entry *
1189 56e0773d 2019-11-28 stsp got_tree_entry_get_prev(struct got_tree_object *tree,
1190 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
1192 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx - 1);
1195 3840f4c9 2018-09-12 stsp static const struct got_error *
1196 ac544f8c 2019-01-13 stsp request_packed_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen, int outfd,
1197 ebc55e2d 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
1198 ebc55e2d 2018-12-24 stsp struct got_object_id *id)
1200 3840f4c9 2018-09-12 stsp const struct got_error *err = NULL;
1201 3840f4c9 2018-09-12 stsp int outfd_child;
1202 3840f4c9 2018-09-12 stsp int basefd, accumfd; /* temporary files for delta application */
1204 3840f4c9 2018-09-12 stsp basefd = got_opentempfd();
1205 3840f4c9 2018-09-12 stsp if (basefd == -1)
1206 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
1207 3840f4c9 2018-09-12 stsp accumfd = got_opentempfd();
1208 3840f4c9 2018-09-12 stsp if (accumfd == -1)
1209 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
1211 3840f4c9 2018-09-12 stsp outfd_child = dup(outfd);
1212 3840f4c9 2018-09-12 stsp if (outfd_child == -1)
1213 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1215 ebc55e2d 2018-12-24 stsp err = got_privsep_send_blob_req(pack->privsep_child->ibuf, -1, id, idx);
1217 3840f4c9 2018-09-12 stsp return err;
1219 3840f4c9 2018-09-12 stsp err = got_privsep_send_blob_outfd(pack->privsep_child->ibuf,
1220 3840f4c9 2018-09-12 stsp outfd_child);
1221 3840f4c9 2018-09-12 stsp if (err) {
1222 41496140 2019-02-21 stsp close(basefd);
1223 41496140 2019-02-21 stsp close(accumfd);
1224 3840f4c9 2018-09-12 stsp return err;
1227 3840f4c9 2018-09-12 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
1229 3840f4c9 2018-09-12 stsp if (err) {
1230 3840f4c9 2018-09-12 stsp close(accumfd);
1231 3840f4c9 2018-09-12 stsp return err;
1234 3840f4c9 2018-09-12 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
1237 3840f4c9 2018-09-12 stsp return err;
1239 ac544f8c 2019-01-13 stsp err = got_privsep_recv_blob(outbuf, size, hdrlen,
1240 ebc55e2d 2018-12-24 stsp pack->privsep_child->ibuf);
1242 3840f4c9 2018-09-12 stsp return err;
1244 3840f4c9 2018-09-12 stsp if (lseek(outfd, SEEK_SET, 0) == -1)
1245 638f9024 2019-05-13 stsp err = got_error_from_errno("lseek");
1247 3840f4c9 2018-09-12 stsp return err;
1250 ebc55e2d 2018-12-24 stsp static const struct got_error *
1251 ac544f8c 2019-01-13 stsp read_packed_blob_privsep(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1252 ac544f8c 2019-01-13 stsp int outfd, struct got_pack *pack, struct got_packidx *packidx, int idx,
1253 ebc55e2d 2018-12-24 stsp struct got_object_id *id)
1255 68482ea3 2017-11-27 stsp const struct got_error *err = NULL;
1257 ebc55e2d 2018-12-24 stsp if (pack->privsep_child == NULL) {
1258 ebc55e2d 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
1260 ebc55e2d 2018-12-24 stsp return err;
1263 ac544f8c 2019-01-13 stsp return request_packed_blob(outbuf, size, hdrlen, outfd, pack, packidx,
1267 9f2369b0 2018-12-24 stsp static const struct got_error *
1268 ac544f8c 2019-01-13 stsp request_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen, int outfd,
1269 d5c81d44 2021-07-08 stsp int infd, struct got_object_id *id, struct imsgbuf *ibuf)
1271 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
1272 9f2369b0 2018-12-24 stsp int outfd_child;
1274 9f2369b0 2018-12-24 stsp outfd_child = dup(outfd);
1275 9f2369b0 2018-12-24 stsp if (outfd_child == -1)
1276 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1278 d5c81d44 2021-07-08 stsp err = got_privsep_send_blob_req(ibuf, infd, id, -1);
1280 9f2369b0 2018-12-24 stsp return err;
1282 9f2369b0 2018-12-24 stsp err = got_privsep_send_blob_outfd(ibuf, outfd_child);
1284 9f2369b0 2018-12-24 stsp return err;
1286 ac544f8c 2019-01-13 stsp err = got_privsep_recv_blob(outbuf, size, hdrlen, ibuf);
1288 9f2369b0 2018-12-24 stsp return err;
1290 9f2369b0 2018-12-24 stsp if (lseek(outfd, SEEK_SET, 0) == -1)
1291 638f9024 2019-05-13 stsp return got_error_from_errno("lseek");
1293 9f2369b0 2018-12-24 stsp return err;
1296 9f2369b0 2018-12-24 stsp static const struct got_error *
1297 ac544f8c 2019-01-13 stsp read_blob_privsep(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1298 d5c81d44 2021-07-08 stsp int outfd, int infd, struct got_object_id *id, struct got_repository *repo)
1300 ddc7b220 2019-09-08 stsp const struct got_error *err;
1301 9f2369b0 2018-12-24 stsp int imsg_fds[2];
1302 9f2369b0 2018-12-24 stsp pid_t pid;
1303 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1305 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd != -1) {
1306 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf;
1307 d5c81d44 2021-07-08 stsp return request_blob(outbuf, size, hdrlen, outfd, infd, id,
1311 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
1312 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
1313 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1315 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
1316 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
1317 ddc7b220 2019-09-08 stsp free(ibuf);
1318 ddc7b220 2019-09-08 stsp return err;
1321 9f2369b0 2018-12-24 stsp pid = fork();
1322 ddc7b220 2019-09-08 stsp if (pid == -1) {
1323 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
1324 ddc7b220 2019-09-08 stsp free(ibuf);
1325 ddc7b220 2019-09-08 stsp return err;
1327 9f2369b0 2018-12-24 stsp else if (pid == 0) {
1328 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_BLOB,
1329 9f2369b0 2018-12-24 stsp repo->path);
1330 9f2369b0 2018-12-24 stsp /* not reached */
1333 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1) {
1334 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
1335 ddc7b220 2019-09-08 stsp free(ibuf);
1336 ddc7b220 2019-09-08 stsp return err;
1338 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd =
1339 9f2369b0 2018-12-24 stsp imsg_fds[0];
1340 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].pid = pid;
1341 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
1342 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf = ibuf;
1344 d5c81d44 2021-07-08 stsp return request_blob(outbuf, size, hdrlen, outfd, infd, id, ibuf);
1347 ebc55e2d 2018-12-24 stsp static const struct got_error *
1348 ebc55e2d 2018-12-24 stsp open_blob(struct got_blob_object **blob, struct got_repository *repo,
1349 ebc55e2d 2018-12-24 stsp struct got_object_id *id, size_t blocksize)
1351 ebc55e2d 2018-12-24 stsp const struct got_error *err = NULL;
1352 ebc55e2d 2018-12-24 stsp struct got_packidx *packidx = NULL;
1354 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
1355 ac544f8c 2019-01-13 stsp uint8_t *outbuf;
1356 e82b1d81 2019-07-27 stsp int outfd;
1357 ebc55e2d 2018-12-24 stsp size_t size, hdrlen;
1358 ebc55e2d 2018-12-24 stsp struct stat sb;
1360 68482ea3 2017-11-27 stsp *blob = calloc(1, sizeof(**blob));
1361 4558fcd4 2018-01-14 stsp if (*blob == NULL)
1362 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1364 55da3778 2018-09-10 stsp outfd = got_opentempfd();
1365 55da3778 2018-09-10 stsp if (outfd == -1)
1366 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
1368 062ebb78 2018-07-12 stsp (*blob)->read_buf = malloc(blocksize);
1369 15c8b0e6 2018-04-24 stsp if ((*blob)->read_buf == NULL) {
1370 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1371 c7254d79 2018-04-24 stsp goto done;
1374 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
1375 e82b1d81 2019-07-27 stsp if (err == NULL) {
1376 ebc55e2d 2018-12-24 stsp struct got_pack *pack = NULL;
1378 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
1379 aea75d87 2021-07-06 stsp packidx->path_packidx);
1381 ebc55e2d 2018-12-24 stsp goto done;
1383 ebc55e2d 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1384 55da3778 2018-09-10 stsp if (pack == NULL) {
1385 ebc55e2d 2018-12-24 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
1388 55da3778 2018-09-10 stsp goto done;
1390 ac544f8c 2019-01-13 stsp err = read_packed_blob_privsep(&outbuf, &size, &hdrlen, outfd,
1391 ac544f8c 2019-01-13 stsp pack, packidx, idx, id);
1392 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
1395 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&infd, id, repo);
1397 e82b1d81 2019-07-27 stsp goto done;
1398 ac544f8c 2019-01-13 stsp err = read_blob_privsep(&outbuf, &size, &hdrlen, outfd, infd,
1399 d5c81d44 2021-07-08 stsp id, repo);
1402 55da3778 2018-09-10 stsp goto done;
1404 de060dff 2018-12-24 stsp if (hdrlen > size) {
1405 ebc55e2d 2018-12-24 stsp err = got_error(GOT_ERR_BAD_OBJ_HDR);
1406 ebc55e2d 2018-12-24 stsp goto done;
1409 ac544f8c 2019-01-13 stsp if (outbuf) {
1410 08578a35 2021-01-22 stsp if (close(outfd) == -1 && err == NULL)
1411 638f9024 2019-05-13 stsp err = got_error_from_errno("close");
1412 ac544f8c 2019-01-13 stsp outfd = -1;
1413 ac544f8c 2019-01-13 stsp (*blob)->f = fmemopen(outbuf, size, "rb");
1414 ac544f8c 2019-01-13 stsp if ((*blob)->f == NULL) {
1415 638f9024 2019-05-13 stsp err = got_error_from_errno("fmemopen");
1416 ac544f8c 2019-01-13 stsp free(outbuf);
1417 ac544f8c 2019-01-13 stsp goto done;
1419 ac544f8c 2019-01-13 stsp (*blob)->data = outbuf;
1421 ac544f8c 2019-01-13 stsp if (fstat(outfd, &sb) == -1) {
1422 638f9024 2019-05-13 stsp err = got_error_from_errno("fstat");
1423 ac544f8c 2019-01-13 stsp goto done;
1426 ac544f8c 2019-01-13 stsp if (sb.st_size != size) {
1427 ac544f8c 2019-01-13 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1428 ac544f8c 2019-01-13 stsp goto done;
1431 ac544f8c 2019-01-13 stsp (*blob)->f = fdopen(outfd, "rb");
1432 ac544f8c 2019-01-13 stsp if ((*blob)->f == NULL) {
1433 638f9024 2019-05-13 stsp err = got_error_from_errno("fdopen");
1434 ac544f8c 2019-01-13 stsp close(outfd);
1435 ac544f8c 2019-01-13 stsp outfd = -1;
1436 ac544f8c 2019-01-13 stsp goto done;
1440 ebc55e2d 2018-12-24 stsp (*blob)->hdrlen = hdrlen;
1441 eb651edf 2018-02-11 stsp (*blob)->blocksize = blocksize;
1442 ebc55e2d 2018-12-24 stsp memcpy(&(*blob)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
1445 8d2c5ea3 2019-08-13 stsp free(path_packfile);
1446 55da3778 2018-09-10 stsp if (err) {
1447 55da3778 2018-09-10 stsp if (*blob) {
1448 7baf5860 2019-03-19 stsp got_object_blob_close(*blob);
1449 55da3778 2018-09-10 stsp *blob = NULL;
1450 55da3778 2018-09-10 stsp } else if (outfd != -1)
1451 55da3778 2018-09-10 stsp close(outfd);
1453 a19581a2 2018-06-21 stsp return err;
1456 a19581a2 2018-06-21 stsp const struct got_error *
1457 a19581a2 2018-06-21 stsp got_object_open_as_blob(struct got_blob_object **blob,
1458 a19581a2 2018-06-21 stsp struct got_repository *repo, struct got_object_id *id,
1459 a19581a2 2018-06-21 stsp size_t blocksize)
1461 ebc55e2d 2018-12-24 stsp return open_blob(blob, repo, id, blocksize);
1464 ebc55e2d 2018-12-24 stsp const struct got_error *
1465 ebc55e2d 2018-12-24 stsp got_object_blob_open(struct got_blob_object **blob,
1466 ebc55e2d 2018-12-24 stsp struct got_repository *repo, struct got_object *obj, size_t blocksize)
1468 ebc55e2d 2018-12-24 stsp return open_blob(blob, repo, got_object_get_id(obj), blocksize);
1471 fb43ecf1 2019-02-11 stsp const struct got_error *
1472 68482ea3 2017-11-27 stsp got_object_blob_close(struct got_blob_object *blob)
1474 fb43ecf1 2019-02-11 stsp const struct got_error *err = NULL;
1475 15c8b0e6 2018-04-24 stsp free(blob->read_buf);
1476 56b63ca4 2021-01-22 stsp if (blob->f && fclose(blob->f) == EOF)
1477 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1478 ac544f8c 2019-01-13 stsp free(blob->data);
1479 68482ea3 2017-11-27 stsp free(blob);
1480 fb43ecf1 2019-02-11 stsp return err;
1484 8ba819a3 2020-07-23 stsp got_object_blob_rewind(struct got_blob_object *blob)
1486 8ba819a3 2020-07-23 stsp if (blob->f)
1487 8ba819a3 2020-07-23 stsp rewind(blob->f);
1491 f934cf2c 2018-02-12 stsp got_object_blob_id_str(struct got_blob_object *blob, char *buf, size_t size)
1493 f934cf2c 2018-02-12 stsp return got_sha1_digest_to_str(blob->id.sha1, buf, size);
1497 f934cf2c 2018-02-12 stsp got_object_blob_get_hdrlen(struct got_blob_object *blob)
1499 f934cf2c 2018-02-12 stsp return blob->hdrlen;
1502 f934cf2c 2018-02-12 stsp const uint8_t *
1503 f934cf2c 2018-02-12 stsp got_object_blob_get_read_buf(struct got_blob_object *blob)
1505 f934cf2c 2018-02-12 stsp return blob->read_buf;
1508 68482ea3 2017-11-27 stsp const struct got_error *
1509 eb651edf 2018-02-11 stsp got_object_blob_read_block(size_t *outlenp, struct got_blob_object *blob)
1513 eb651edf 2018-02-11 stsp n = fread(blob->read_buf, 1, blob->blocksize, blob->f);
1514 eb651edf 2018-02-11 stsp if (n == 0 && ferror(blob->f))
1515 eb651edf 2018-02-11 stsp return got_ferror(blob->f, GOT_ERR_IO);
1516 eb651edf 2018-02-11 stsp *outlenp = n;
1517 35e9ba5d 2018-06-21 stsp return NULL;
1520 35e9ba5d 2018-06-21 stsp const struct got_error *
1521 be659d10 2020-11-18 stsp got_object_blob_dump_to_file(off_t *filesize, int *nlines,
1522 6c4c42e0 2019-06-24 stsp off_t **line_offsets, FILE *outfile, struct got_blob_object *blob)
1524 35e9ba5d 2018-06-21 stsp const struct got_error *err = NULL;
1525 b6752625 2018-12-24 stsp size_t n, len, hdrlen;
1526 84451b3e 2018-07-10 stsp const uint8_t *buf;
1528 c33ebc60 2020-11-18 stsp const int alloc_chunksz = 512;
1529 c33ebc60 2020-11-18 stsp size_t nalloc = 0;
1530 f595d9bd 2019-08-14 stsp off_t off = 0, total_len = 0;
1532 6c4c42e0 2019-06-24 stsp if (line_offsets)
1533 6c4c42e0 2019-06-24 stsp *line_offsets = NULL;
1534 f595d9bd 2019-08-14 stsp if (filesize)
1535 f595d9bd 2019-08-14 stsp *filesize = 0;
1536 84451b3e 2018-07-10 stsp if (nlines)
1537 84451b3e 2018-07-10 stsp *nlines = 0;
1539 35e9ba5d 2018-06-21 stsp hdrlen = got_object_blob_get_hdrlen(blob);
1541 35e9ba5d 2018-06-21 stsp err = got_object_blob_read_block(&len, blob);
1543 35e9ba5d 2018-06-21 stsp return err;
1544 35e9ba5d 2018-06-21 stsp if (len == 0)
1546 84451b3e 2018-07-10 stsp buf = got_object_blob_get_read_buf(blob);
1547 b02560ec 2019-08-19 stsp i = hdrlen;
1548 f1cbc3bc 2020-11-18 stsp if (nlines) {
1549 f1cbc3bc 2020-11-18 stsp if (line_offsets && *line_offsets == NULL) {
1550 78695fb7 2019-08-12 stsp /* Have some data but perhaps no '\n'. */
1551 78695fb7 2019-08-12 stsp *nlines = 1;
1552 c33ebc60 2020-11-18 stsp nalloc = alloc_chunksz;
1553 c33ebc60 2020-11-18 stsp *line_offsets = calloc(nalloc,
1554 c33ebc60 2020-11-18 stsp sizeof(**line_offsets));
1555 78695fb7 2019-08-12 stsp if (*line_offsets == NULL)
1556 845785d4 2020-02-02 tracey return got_error_from_errno("calloc");
1558 b02560ec 2019-08-19 stsp /* Skip forward over end of first line. */
1559 b02560ec 2019-08-19 stsp while (i < len) {
1560 b02560ec 2019-08-19 stsp if (buf[i] == '\n')
1565 b02560ec 2019-08-19 stsp /* Scan '\n' offsets in remaining chunk of data. */
1566 b02560ec 2019-08-19 stsp while (i < len) {
1567 b02560ec 2019-08-19 stsp if (buf[i] != '\n') {
1571 f595d9bd 2019-08-14 stsp (*nlines)++;
1572 c33ebc60 2020-11-18 stsp if (line_offsets && nalloc < *nlines) {
1573 c33ebc60 2020-11-18 stsp size_t n = *nlines + alloc_chunksz;
1574 78695fb7 2019-08-12 stsp off_t *o = recallocarray(*line_offsets,
1575 c33ebc60 2020-11-18 stsp nalloc, n, sizeof(**line_offsets));
1576 78695fb7 2019-08-12 stsp if (o == NULL) {
1577 78695fb7 2019-08-12 stsp free(*line_offsets);
1578 78695fb7 2019-08-12 stsp *line_offsets = NULL;
1579 78695fb7 2019-08-12 stsp return got_error_from_errno(
1580 78695fb7 2019-08-12 stsp "recallocarray");
1582 78695fb7 2019-08-12 stsp *line_offsets = o;
1583 c33ebc60 2020-11-18 stsp nalloc = n;
1585 f1cbc3bc 2020-11-18 stsp if (line_offsets) {
1586 f1cbc3bc 2020-11-18 stsp off = total_len + i - hdrlen + 1;
1587 f1cbc3bc 2020-11-18 stsp (*line_offsets)[*nlines - 1] = off;
1592 35e9ba5d 2018-06-21 stsp /* Skip blob object header first time around. */
1593 454a6b59 2018-12-24 stsp n = fwrite(buf + hdrlen, 1, len - hdrlen, outfile);
1594 b6752625 2018-12-24 stsp if (n != len - hdrlen)
1595 b6752625 2018-12-24 stsp return got_ferror(outfile, GOT_ERR_IO);
1596 f595d9bd 2019-08-14 stsp total_len += len - hdrlen;
1597 35e9ba5d 2018-06-21 stsp hdrlen = 0;
1598 35e9ba5d 2018-06-21 stsp } while (len != 0);
1600 cbe7f848 2019-02-11 stsp if (fflush(outfile) != 0)
1601 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
1602 35e9ba5d 2018-06-21 stsp rewind(outfile);
1604 f595d9bd 2019-08-14 stsp if (filesize)
1605 f595d9bd 2019-08-14 stsp *filesize = total_len;
1607 776d4d29 2018-06-17 stsp return NULL;
1610 f4a881ce 2018-11-17 stsp static const struct got_error *
1611 268f7291 2018-12-24 stsp request_packed_tag(struct got_tag_object **tag, struct got_pack *pack,
1612 268f7291 2018-12-24 stsp int pack_idx, struct got_object_id *id)
1614 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
1616 268f7291 2018-12-24 stsp err = got_privsep_send_tag_req(pack->privsep_child->ibuf, -1, id,
1617 268f7291 2018-12-24 stsp pack_idx);
1619 a158c901 2018-12-23 stsp return err;
1621 a158c901 2018-12-23 stsp return got_privsep_recv_tag(tag, pack->privsep_child->ibuf);
1624 268f7291 2018-12-24 stsp static const struct got_error *
1625 268f7291 2018-12-24 stsp read_packed_tag_privsep(struct got_tag_object **tag,
1626 268f7291 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
1627 268f7291 2018-12-24 stsp struct got_object_id *id)
1629 268f7291 2018-12-24 stsp const struct got_error *err = NULL;
1631 268f7291 2018-12-24 stsp if (pack->privsep_child)
1632 268f7291 2018-12-24 stsp return request_packed_tag(tag, pack, idx, id);
1634 268f7291 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
1636 268f7291 2018-12-24 stsp return err;
1638 268f7291 2018-12-24 stsp return request_packed_tag(tag, pack, idx, id);
1641 9f2369b0 2018-12-24 stsp static const struct got_error *
1642 9f2369b0 2018-12-24 stsp request_tag(struct got_tag_object **tag, struct got_repository *repo,
1643 d5c81d44 2021-07-08 stsp int fd, struct got_object_id *id)
1645 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
1646 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1648 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf;
1650 d5c81d44 2021-07-08 stsp err = got_privsep_send_tag_req(ibuf, fd, id, -1);
1652 9f2369b0 2018-12-24 stsp return err;
1654 9f2369b0 2018-12-24 stsp return got_privsep_recv_tag(tag, ibuf);
1657 9f2369b0 2018-12-24 stsp static const struct got_error *
1658 9f2369b0 2018-12-24 stsp read_tag_privsep(struct got_tag_object **tag, int obj_fd,
1659 d5c81d44 2021-07-08 stsp struct got_object_id *id, struct got_repository *repo)
1661 ddc7b220 2019-09-08 stsp const struct got_error *err;
1662 9f2369b0 2018-12-24 stsp int imsg_fds[2];
1663 9f2369b0 2018-12-24 stsp pid_t pid;
1664 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1666 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd != -1)
1667 d5c81d44 2021-07-08 stsp return request_tag(tag, repo, obj_fd, id);
1669 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
1670 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
1671 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1673 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
1674 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
1675 ddc7b220 2019-09-08 stsp free(ibuf);
1676 ddc7b220 2019-09-08 stsp return err;
1679 9f2369b0 2018-12-24 stsp pid = fork();
1680 ddc7b220 2019-09-08 stsp if (pid == -1) {
1681 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
1682 ddc7b220 2019-09-08 stsp free(ibuf);
1683 ddc7b220 2019-09-08 stsp return err;
1685 9f2369b0 2018-12-24 stsp else if (pid == 0) {
1686 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_TAG,
1687 9f2369b0 2018-12-24 stsp repo->path);
1688 9f2369b0 2018-12-24 stsp /* not reached */
1691 08578a35 2021-01-22 stsp if (close(imsg_fds[1]) == -1) {
1692 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
1693 ddc7b220 2019-09-08 stsp free(ibuf);
1694 ddc7b220 2019-09-08 stsp return err;
1696 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd =
1697 9f2369b0 2018-12-24 stsp imsg_fds[0];
1698 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].pid = pid;
1699 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
1700 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf = ibuf;
1702 d5c81d44 2021-07-08 stsp return request_tag(tag, repo, obj_fd, id);
1705 a158c901 2018-12-23 stsp static const struct got_error *
1706 268f7291 2018-12-24 stsp open_tag(struct got_tag_object **tag, struct got_repository *repo,
1707 268f7291 2018-12-24 stsp struct got_object_id *id, int check_cache)
1709 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1710 268f7291 2018-12-24 stsp struct got_packidx *packidx = NULL;
1712 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
1713 5d844a1e 2019-08-13 stsp struct got_object *obj = NULL;
1714 5d844a1e 2019-08-13 stsp int obj_type = GOT_OBJ_TYPE_ANY;
1716 f4a881ce 2018-11-17 stsp if (check_cache) {
1717 268f7291 2018-12-24 stsp *tag = got_repo_get_cached_tag(repo, id);
1718 f4a881ce 2018-11-17 stsp if (*tag != NULL) {
1719 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1720 f4a881ce 2018-11-17 stsp return NULL;
1723 f4a881ce 2018-11-17 stsp *tag = NULL;
1725 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
1726 e82b1d81 2019-07-27 stsp if (err == NULL) {
1727 268f7291 2018-12-24 stsp struct got_pack *pack = NULL;
1729 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
1730 aea75d87 2021-07-06 stsp packidx->path_packidx);
1732 268f7291 2018-12-24 stsp return err;
1734 268f7291 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1735 f4a881ce 2018-11-17 stsp if (pack == NULL) {
1736 e82b1d81 2019-07-27 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
1739 8d2c5ea3 2019-08-13 stsp goto done;
1742 992eb9d8 2020-02-07 tracey /* Beware of "lightweight" tags: Check object type first. */
1743 5d844a1e 2019-08-13 stsp err = read_packed_object_privsep(&obj, repo, pack, packidx,
1746 5d844a1e 2019-08-13 stsp goto done;
1747 5d844a1e 2019-08-13 stsp obj_type = obj->type;
1748 5d844a1e 2019-08-13 stsp got_object_close(obj);
1749 5d844a1e 2019-08-13 stsp if (obj_type != GOT_OBJ_TYPE_TAG) {
1750 5d844a1e 2019-08-13 stsp err = got_error(GOT_ERR_OBJ_TYPE);
1751 5d844a1e 2019-08-13 stsp goto done;
1753 5d844a1e 2019-08-13 stsp err = read_packed_tag_privsep(tag, pack, packidx, idx, id);
1754 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
1757 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
1759 e82b1d81 2019-07-27 stsp return err;
1760 d5c81d44 2021-07-08 stsp err = got_object_read_header_privsep(&obj, id, repo, fd);
1762 5d844a1e 2019-08-13 stsp return err;
1763 5d844a1e 2019-08-13 stsp obj_type = obj->type;
1764 5d844a1e 2019-08-13 stsp got_object_close(obj);
1765 5d844a1e 2019-08-13 stsp if (obj_type != GOT_OBJ_TYPE_TAG)
1766 5d844a1e 2019-08-13 stsp return got_error(GOT_ERR_OBJ_TYPE);
1768 762d73f4 2021-04-10 stsp err = got_object_open_loose_fd(&fd, id, repo);
1770 5d844a1e 2019-08-13 stsp return err;
1771 d5c81d44 2021-07-08 stsp err = read_tag_privsep(tag, fd, id, repo);
1774 f4a881ce 2018-11-17 stsp if (err == NULL) {
1775 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1776 268f7291 2018-12-24 stsp err = got_repo_cache_tag(repo, id, *tag);
1779 8d2c5ea3 2019-08-13 stsp free(path_packfile);
1780 f4a881ce 2018-11-17 stsp return err;
1783 f4a881ce 2018-11-17 stsp const struct got_error *
1784 f4a881ce 2018-11-17 stsp got_object_open_as_tag(struct got_tag_object **tag,
1785 f4a881ce 2018-11-17 stsp struct got_repository *repo, struct got_object_id *id)
1787 f4a881ce 2018-11-17 stsp *tag = got_repo_get_cached_tag(repo, id);
1788 f4a881ce 2018-11-17 stsp if (*tag != NULL) {
1789 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1790 f4a881ce 2018-11-17 stsp return NULL;
1793 268f7291 2018-12-24 stsp return open_tag(tag, repo, id, 0);
1796 f4a881ce 2018-11-17 stsp const struct got_error *
1797 f4a881ce 2018-11-17 stsp got_object_tag_open(struct got_tag_object **tag,
1798 f4a881ce 2018-11-17 stsp struct got_repository *repo, struct got_object *obj)
1800 268f7291 2018-12-24 stsp return open_tag(tag, repo, got_object_get_id(obj), 1);
1803 d24820bf 2019-08-11 stsp const char *
1804 d24820bf 2019-08-11 stsp got_object_tag_get_name(struct got_tag_object *tag)
1806 d24820bf 2019-08-11 stsp return tag->tag;
1810 0bd18d37 2019-02-01 stsp got_object_tag_get_object_type(struct got_tag_object *tag)
1812 0bd18d37 2019-02-01 stsp return tag->obj_type;
1815 0bd18d37 2019-02-01 stsp struct got_object_id *
1816 0bd18d37 2019-02-01 stsp got_object_tag_get_object_id(struct got_tag_object *tag)
1818 0bd18d37 2019-02-01 stsp return &tag->id;
1822 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_time(struct got_tag_object *tag)
1824 01073a5d 2019-08-22 stsp return tag->tagger_time;
1828 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_gmtoff(struct got_tag_object *tag)
1830 01073a5d 2019-08-22 stsp return tag->tagger_gmtoff;
1833 01073a5d 2019-08-22 stsp const char *
1834 01073a5d 2019-08-22 stsp got_object_tag_get_tagger(struct got_tag_object *tag)
1836 01073a5d 2019-08-22 stsp return tag->tagger;
1839 01073a5d 2019-08-22 stsp const char *
1840 01073a5d 2019-08-22 stsp got_object_tag_get_message(struct got_tag_object *tag)
1842 01073a5d 2019-08-22 stsp return tag->tagmsg;
1845 776d4d29 2018-06-17 stsp static struct got_tree_entry *
1846 65a9bbe9 2018-09-15 stsp find_entry_by_name(struct got_tree_object *tree, const char *name, size_t len)
1850 63da309a 2018-11-07 stsp /* Note that tree entries are sorted in strncmp() order. */
1851 56e0773d 2019-11-28 stsp for (i = 0; i < tree->nentries; i++) {
1852 56e0773d 2019-11-28 stsp struct got_tree_entry *te = &tree->entries[i];
1853 63da309a 2018-11-07 stsp int cmp = strncmp(te->name, name, len);
1854 63da309a 2018-11-07 stsp if (cmp < 0)
1856 63da309a 2018-11-07 stsp if (cmp > 0)
1858 63da309a 2018-11-07 stsp if (te->name[len] == '\0')
1859 776d4d29 2018-06-17 stsp return te;
1861 eb651edf 2018-02-11 stsp return NULL;
1864 56e0773d 2019-11-28 stsp struct got_tree_entry *
1865 a129376b 2019-03-28 stsp got_object_tree_find_entry(struct got_tree_object *tree, const char *name)
1867 a129376b 2019-03-28 stsp return find_entry_by_name(tree, name, strlen(name));
1870 776d4d29 2018-06-17 stsp const struct got_error *
1871 cc8021af 2021-10-12 thomas got_object_tree_find_path(struct got_object_id **id, mode_t *mode,
1872 cc8021af 2021-10-12 thomas struct got_repository *repo, struct got_tree_object *tree,
1873 cc8021af 2021-10-12 thomas const char *path)
1875 776d4d29 2018-06-17 stsp const struct got_error *err = NULL;
1876 cc8021af 2021-10-12 thomas struct got_tree_object *subtree = NULL;
1877 db37e2c0 2018-06-21 stsp struct got_tree_entry *te = NULL;
1878 65a9bbe9 2018-09-15 stsp const char *seg, *s;
1879 b7cd37e5 2018-11-18 stsp size_t seglen;
1881 27d434c2 2018-09-15 stsp *id = NULL;
1884 5e54fb30 2019-05-31 stsp while (s[0] == '/')
1887 65a9bbe9 2018-09-15 stsp seglen = 0;
1888 cc8021af 2021-10-12 thomas subtree = tree;
1889 b7cd37e5 2018-11-18 stsp while (*s) {
1890 776d4d29 2018-06-17 stsp struct got_tree_object *next_tree;
1892 776d4d29 2018-06-17 stsp if (*s != '/') {
1899 cc8021af 2021-10-12 thomas te = find_entry_by_name(subtree, seg, seglen);
1900 db37e2c0 2018-06-21 stsp if (te == NULL) {
1901 b66cd6f3 2020-07-31 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
1902 776d4d29 2018-06-17 stsp goto done;
1905 b7cd37e5 2018-11-18 stsp if (*s == '\0')
1908 776d4d29 2018-06-17 stsp seg = s + 1;
1909 65a9bbe9 2018-09-15 stsp seglen = 0;
1912 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&next_tree, repo,
1914 db37e2c0 2018-06-21 stsp te = NULL;
1916 776d4d29 2018-06-17 stsp goto done;
1917 cc8021af 2021-10-12 thomas if (subtree != tree)
1918 cc8021af 2021-10-12 thomas got_object_tree_close(subtree);
1919 cc8021af 2021-10-12 thomas subtree = next_tree;
1924 56e0773d 2019-11-28 stsp *id = got_object_id_dup(&te->id);
1925 27d434c2 2018-09-15 stsp if (*id == NULL)
1926 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
1927 cc8021af 2021-10-12 thomas if (mode)
1928 cc8021af 2021-10-12 thomas *mode = te->mode;
1930 b66cd6f3 2020-07-31 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
1932 cc8021af 2021-10-12 thomas if (subtree && subtree != tree)
1933 cc8021af 2021-10-12 thomas got_object_tree_close(subtree);
1934 cc8021af 2021-10-12 thomas return err;
1936 cc8021af 2021-10-12 thomas const struct got_error *
1937 cc8021af 2021-10-12 thomas got_object_id_by_path(struct got_object_id **id, struct got_repository *repo,
1938 cc8021af 2021-10-12 thomas struct got_object_id *commit_id, const char *path)
1940 cc8021af 2021-10-12 thomas const struct got_error *err = NULL;
1941 cc8021af 2021-10-12 thomas struct got_commit_object *commit = NULL;
1942 cc8021af 2021-10-12 thomas struct got_tree_object *tree = NULL;
1944 cc8021af 2021-10-12 thomas *id = NULL;
1946 cc8021af 2021-10-12 thomas err = got_object_open_as_commit(&commit, repo, commit_id);
1947 cc8021af 2021-10-12 thomas if (err)
1948 cc8021af 2021-10-12 thomas goto done;
1950 cc8021af 2021-10-12 thomas /* Handle opening of root of commit's tree. */
1951 cc8021af 2021-10-12 thomas if (got_path_is_root_dir(path)) {
1952 cc8021af 2021-10-12 thomas *id = got_object_id_dup(commit->tree_id);
1953 cc8021af 2021-10-12 thomas if (*id == NULL)
1954 cc8021af 2021-10-12 thomas err = got_error_from_errno("got_object_id_dup");
1955 cc8021af 2021-10-12 thomas } else {
1956 cc8021af 2021-10-12 thomas err = got_object_open_as_tree(&tree, repo, commit->tree_id);
1957 cc8021af 2021-10-12 thomas if (err)
1958 cc8021af 2021-10-12 thomas goto done;
1959 cc8021af 2021-10-12 thomas err = got_object_tree_find_path(id, NULL, repo, tree, path);
1962 776d4d29 2018-06-17 stsp if (commit)
1963 776d4d29 2018-06-17 stsp got_object_commit_close(commit);
1965 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
1966 776d4d29 2018-06-17 stsp return err;
1970 ac5f2b26 2020-05-05 stsp * Normalize file mode bits to avoid false positive tree entry differences
1971 ac5f2b26 2020-05-05 stsp * in case tree entries have unexpected mode bits set.
1973 ac5f2b26 2020-05-05 stsp static mode_t
1974 ac5f2b26 2020-05-05 stsp normalize_mode_for_comparison(mode_t mode)
1977 ac5f2b26 2020-05-05 stsp * For directories, the only relevant bit is the IFDIR bit.
1978 ac5f2b26 2020-05-05 stsp * This allows us to detect paths changing from a directory
1979 ac5f2b26 2020-05-05 stsp * to a file and vice versa.
1981 ac5f2b26 2020-05-05 stsp if (S_ISDIR(mode))
1982 ac5f2b26 2020-05-05 stsp return mode & S_IFDIR;
1985 40dde666 2020-07-23 stsp * For symlinks, the only relevant bit is the IFLNK bit.
1986 40dde666 2020-07-23 stsp * This allows us to detect paths changing from a symlinks
1987 40dde666 2020-07-23 stsp * to a file or directory and vice versa.
1989 40dde666 2020-07-23 stsp if (S_ISLNK(mode))
1990 40dde666 2020-07-23 stsp return mode & S_IFLNK;
1992 ac5f2b26 2020-05-05 stsp /* For files, the only change we care about is the executable bit. */
1993 ac5f2b26 2020-05-05 stsp return mode & S_IXUSR;
1996 07862c20 2018-09-15 stsp const struct got_error *
1997 07862c20 2018-09-15 stsp got_object_tree_path_changed(int *changed,
1998 07862c20 2018-09-15 stsp struct got_tree_object *tree01, struct got_tree_object *tree02,
1999 07862c20 2018-09-15 stsp const char *path, struct got_repository *repo)
2001 07862c20 2018-09-15 stsp const struct got_error *err = NULL;
2002 07862c20 2018-09-15 stsp struct got_tree_object *tree1 = NULL, *tree2 = NULL;
2003 07862c20 2018-09-15 stsp struct got_tree_entry *te1 = NULL, *te2 = NULL;
2004 65a9bbe9 2018-09-15 stsp const char *seg, *s;
2005 3b7f9878 2018-11-18 stsp size_t seglen;
2007 07862c20 2018-09-15 stsp *changed = 0;
2009 07862c20 2018-09-15 stsp /* We not do support comparing the root path. */
2010 61a7d79f 2020-02-29 stsp if (got_path_is_root_dir(path))
2011 63f810e6 2020-02-29 stsp return got_error_path(path, GOT_ERR_BAD_PATH);
2013 07862c20 2018-09-15 stsp tree1 = tree01;
2014 07862c20 2018-09-15 stsp tree2 = tree02;
2016 61a7d79f 2020-02-29 stsp while (*s == '/')
2019 65a9bbe9 2018-09-15 stsp seglen = 0;
2020 3b7f9878 2018-11-18 stsp while (*s) {
2021 07862c20 2018-09-15 stsp struct got_tree_object *next_tree1, *next_tree2;
2022 ac5f2b26 2020-05-05 stsp mode_t mode1, mode2;
2024 07862c20 2018-09-15 stsp if (*s != '/') {
2031 65a9bbe9 2018-09-15 stsp te1 = find_entry_by_name(tree1, seg, seglen);
2032 07862c20 2018-09-15 stsp if (te1 == NULL) {
2033 07862c20 2018-09-15 stsp err = got_error(GOT_ERR_NO_OBJ);
2034 07862c20 2018-09-15 stsp goto done;
2037 e8bfb8f3 2020-12-18 stsp if (tree2)
2038 e8bfb8f3 2020-12-18 stsp te2 = find_entry_by_name(tree2, seg, seglen);
2040 e8bfb8f3 2020-12-18 stsp if (te2) {
2041 e8bfb8f3 2020-12-18 stsp mode1 = normalize_mode_for_comparison(te1->mode);
2042 e8bfb8f3 2020-12-18 stsp mode2 = normalize_mode_for_comparison(te2->mode);
2043 e8bfb8f3 2020-12-18 stsp if (mode1 != mode2) {
2044 e8bfb8f3 2020-12-18 stsp *changed = 1;
2045 e8bfb8f3 2020-12-18 stsp goto done;
2048 e8bfb8f3 2020-12-18 stsp if (got_object_id_cmp(&te1->id, &te2->id) == 0) {
2049 e8bfb8f3 2020-12-18 stsp *changed = 0;
2050 e8bfb8f3 2020-12-18 stsp goto done;
2054 3b7f9878 2018-11-18 stsp if (*s == '\0') { /* final path element */
2055 07862c20 2018-09-15 stsp *changed = 1;
2056 07862c20 2018-09-15 stsp goto done;
2059 07862c20 2018-09-15 stsp seg = s + 1;
2061 65a9bbe9 2018-09-15 stsp seglen = 0;
2063 07862c20 2018-09-15 stsp err = got_object_open_as_tree(&next_tree1, repo,
2064 56e0773d 2019-11-28 stsp &te1->id);
2065 07862c20 2018-09-15 stsp te1 = NULL;
2067 07862c20 2018-09-15 stsp goto done;
2068 a31cea73 2018-09-15 stsp if (tree1 != tree01)
2069 a31cea73 2018-09-15 stsp got_object_tree_close(tree1);
2070 07862c20 2018-09-15 stsp tree1 = next_tree1;
2072 e8bfb8f3 2020-12-18 stsp if (te2) {
2073 e8bfb8f3 2020-12-18 stsp err = got_object_open_as_tree(&next_tree2, repo,
2074 e8bfb8f3 2020-12-18 stsp &te2->id);
2075 e8bfb8f3 2020-12-18 stsp te2 = NULL;
2077 e8bfb8f3 2020-12-18 stsp goto done;
2078 e8bfb8f3 2020-12-18 stsp if (tree2 != tree02)
2079 e8bfb8f3 2020-12-18 stsp got_object_tree_close(tree2);
2080 e8bfb8f3 2020-12-18 stsp tree2 = next_tree2;
2081 e8bfb8f3 2020-12-18 stsp } else if (tree2) {
2082 e8bfb8f3 2020-12-18 stsp if (tree2 != tree02)
2083 e8bfb8f3 2020-12-18 stsp got_object_tree_close(tree2);
2084 e8bfb8f3 2020-12-18 stsp tree2 = NULL;
2089 a31cea73 2018-09-15 stsp if (tree1 && tree1 != tree01)
2090 07862c20 2018-09-15 stsp got_object_tree_close(tree1);
2091 a31cea73 2018-09-15 stsp if (tree2 && tree2 != tree02)
2092 07862c20 2018-09-15 stsp got_object_tree_close(tree2);
2093 77880158 2018-11-04 stsp return err;
2096 ed175427 2019-05-09 stsp const struct got_error *
2097 ed175427 2019-05-09 stsp got_object_tree_entry_dup(struct got_tree_entry **new_te,
2098 ed175427 2019-05-09 stsp struct got_tree_entry *te)
2100 ed175427 2019-05-09 stsp const struct got_error *err = NULL;
2102 ed175427 2019-05-09 stsp *new_te = calloc(1, sizeof(**new_te));
2103 ed175427 2019-05-09 stsp if (*new_te == NULL)
2104 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
2106 ed175427 2019-05-09 stsp (*new_te)->mode = te->mode;
2107 56e0773d 2019-11-28 stsp memcpy((*new_te)->name, te->name, sizeof((*new_te)->name));
2108 56e0773d 2019-11-28 stsp memcpy(&(*new_te)->id, &te->id, sizeof((*new_te)->id));
2109 8c4eabf2 2019-05-10 stsp return err;
2113 56e0773d 2019-11-28 stsp got_object_tree_entry_is_submodule(struct got_tree_entry *te)
2115 63c5ca5d 2019-08-24 stsp return (te->mode & S_IFMT) == (S_IFDIR | S_IFLNK);
2119 e40622f4 2020-07-23 stsp got_object_tree_entry_is_symlink(struct got_tree_entry *te)
2121 e40622f4 2020-07-23 stsp /* S_IFDIR check avoids confusing symlinks with submodules. */
2122 e40622f4 2020-07-23 stsp return ((te->mode & (S_IFDIR | S_IFLNK)) == S_IFLNK);
2125 e40622f4 2020-07-23 stsp static const struct got_error *
2126 e40622f4 2020-07-23 stsp resolve_symlink(char **link_target, const char *path,
2127 e40622f4 2020-07-23 stsp struct got_object_id *commit_id, struct got_repository *repo)
2129 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
2130 dbdd6209 2020-10-19 stsp char buf[PATH_MAX];
2131 e40622f4 2020-07-23 stsp char *name, *parent_path = NULL;
2132 e40622f4 2020-07-23 stsp struct got_object_id *tree_obj_id = NULL;
2133 e40622f4 2020-07-23 stsp struct got_tree_object *tree = NULL;
2134 e40622f4 2020-07-23 stsp struct got_tree_entry *te = NULL;
2136 e40622f4 2020-07-23 stsp *link_target = NULL;
2138 dbdd6209 2020-10-19 stsp if (strlcpy(buf, path, sizeof(buf)) >= sizeof(buf))
2139 dbdd6209 2020-10-19 stsp return got_error(GOT_ERR_NO_SPACE);
2141 dbdd6209 2020-10-19 stsp name = basename(buf);
2142 e40622f4 2020-07-23 stsp if (name == NULL)
2143 e40622f4 2020-07-23 stsp return got_error_from_errno2("basename", path);
2145 e40622f4 2020-07-23 stsp err = got_path_dirname(&parent_path, path);
2147 e40622f4 2020-07-23 stsp return err;
2149 e40622f4 2020-07-23 stsp err = got_object_id_by_path(&tree_obj_id, repo, commit_id,
2150 e40622f4 2020-07-23 stsp parent_path);
2151 e40622f4 2020-07-23 stsp if (err) {
2152 e40622f4 2020-07-23 stsp if (err->code == GOT_ERR_NO_TREE_ENTRY) {
2153 e40622f4 2020-07-23 stsp /* Display the complete path in error message. */
2154 e40622f4 2020-07-23 stsp err = got_error_path(path, err->code);
2156 e40622f4 2020-07-23 stsp goto done;
2159 e40622f4 2020-07-23 stsp err = got_object_open_as_tree(&tree, repo, tree_obj_id);
2161 e40622f4 2020-07-23 stsp goto done;
2163 e40622f4 2020-07-23 stsp te = got_object_tree_find_entry(tree, name);
2164 e40622f4 2020-07-23 stsp if (te == NULL) {
2165 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
2166 e40622f4 2020-07-23 stsp goto done;
2169 e40622f4 2020-07-23 stsp if (got_object_tree_entry_is_symlink(te)) {
2170 e40622f4 2020-07-23 stsp err = got_tree_entry_get_symlink_target(link_target, te, repo);
2172 e40622f4 2020-07-23 stsp goto done;
2173 e40622f4 2020-07-23 stsp if (!got_path_is_absolute(*link_target)) {
2174 e40622f4 2020-07-23 stsp char *abspath;
2175 e40622f4 2020-07-23 stsp if (asprintf(&abspath, "%s/%s", parent_path,
2176 e40622f4 2020-07-23 stsp *link_target) == -1) {
2177 e40622f4 2020-07-23 stsp err = got_error_from_errno("asprintf");
2178 e40622f4 2020-07-23 stsp goto done;
2180 e40622f4 2020-07-23 stsp free(*link_target);
2181 e40622f4 2020-07-23 stsp *link_target = malloc(PATH_MAX);
2182 e40622f4 2020-07-23 stsp if (*link_target == NULL) {
2183 e40622f4 2020-07-23 stsp err = got_error_from_errno("malloc");
2184 e40622f4 2020-07-23 stsp goto done;
2186 e40622f4 2020-07-23 stsp err = got_canonpath(abspath, *link_target, PATH_MAX);
2187 e40622f4 2020-07-23 stsp free(abspath);
2189 e40622f4 2020-07-23 stsp goto done;
2193 e40622f4 2020-07-23 stsp free(tree_obj_id);
2195 e40622f4 2020-07-23 stsp got_object_tree_close(tree);
2196 e40622f4 2020-07-23 stsp if (err) {
2197 e40622f4 2020-07-23 stsp free(*link_target);
2198 e40622f4 2020-07-23 stsp *link_target = NULL;
2200 e40622f4 2020-07-23 stsp return err;
2203 ca6e02ac 2020-01-07 stsp const struct got_error *
2204 e40622f4 2020-07-23 stsp got_object_resolve_symlinks(char **link_target, const char *path,
2205 e40622f4 2020-07-23 stsp struct got_object_id *commit_id, struct got_repository *repo)
2207 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
2208 e40622f4 2020-07-23 stsp char *next_target = NULL;
2209 e40622f4 2020-07-23 stsp int max_recursion = 40; /* matches Git */
2211 e40622f4 2020-07-23 stsp *link_target = NULL;
2214 e40622f4 2020-07-23 stsp err = resolve_symlink(&next_target,
2215 e40622f4 2020-07-23 stsp *link_target ? *link_target : path, commit_id, repo);
2218 e40622f4 2020-07-23 stsp if (next_target) {
2219 e40622f4 2020-07-23 stsp free(*link_target);
2220 e40622f4 2020-07-23 stsp if (--max_recursion == 0) {
2221 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_RECURSION);
2222 e40622f4 2020-07-23 stsp *link_target = NULL;
2225 e40622f4 2020-07-23 stsp *link_target = next_target;
2227 e40622f4 2020-07-23 stsp } while (next_target);
2229 e40622f4 2020-07-23 stsp return err;
2232 e40622f4 2020-07-23 stsp const struct got_error *
2233 ca6e02ac 2020-01-07 stsp got_traverse_packed_commits(struct got_object_id_queue *traversed_commits,
2234 ca6e02ac 2020-01-07 stsp struct got_object_id *commit_id, const char *path,
2235 ca6e02ac 2020-01-07 stsp struct got_repository *repo)
2237 ca6e02ac 2020-01-07 stsp const struct got_error *err = NULL;
2238 ca6e02ac 2020-01-07 stsp struct got_pack *pack = NULL;
2239 ca6e02ac 2020-01-07 stsp struct got_packidx *packidx = NULL;
2240 ca6e02ac 2020-01-07 stsp char *path_packfile = NULL;
2241 ca6e02ac 2020-01-07 stsp struct got_commit_object *changed_commit = NULL;
2242 ca6e02ac 2020-01-07 stsp struct got_object_id *changed_commit_id = NULL;
2245 ca6e02ac 2020-01-07 stsp err = got_repo_search_packidx(&packidx, &idx, repo, commit_id);
2246 ca6e02ac 2020-01-07 stsp if (err) {
2247 ca6e02ac 2020-01-07 stsp if (err->code != GOT_ERR_NO_OBJ)
2248 ca6e02ac 2020-01-07 stsp return err;
2249 ca6e02ac 2020-01-07 stsp return NULL;
2252 aea75d87 2021-07-06 stsp err = got_packidx_get_packfile_path(&path_packfile,
2253 aea75d87 2021-07-06 stsp packidx->path_packidx);
2255 ca6e02ac 2020-01-07 stsp return err;
2257 ca6e02ac 2020-01-07 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
2258 ca6e02ac 2020-01-07 stsp if (pack == NULL) {
2259 ca6e02ac 2020-01-07 stsp err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
2261 ca6e02ac 2020-01-07 stsp goto done;
2264 ca6e02ac 2020-01-07 stsp if (pack->privsep_child == NULL) {
2265 ca6e02ac 2020-01-07 stsp err = start_pack_privsep_child(pack, packidx);
2267 ca6e02ac 2020-01-07 stsp goto done;
2270 ca6e02ac 2020-01-07 stsp err = got_privsep_send_commit_traversal_request(
2271 ca6e02ac 2020-01-07 stsp pack->privsep_child->ibuf, commit_id, idx, path);
2273 ca6e02ac 2020-01-07 stsp goto done;
2275 ca6e02ac 2020-01-07 stsp err = got_privsep_recv_traversed_commits(&changed_commit,
2276 ca6e02ac 2020-01-07 stsp &changed_commit_id, traversed_commits, pack->privsep_child->ibuf);
2278 ca6e02ac 2020-01-07 stsp goto done;
2280 ca6e02ac 2020-01-07 stsp if (changed_commit) {
2282 ca6e02ac 2020-01-07 stsp * Cache the commit in which the path was changed.
2283 ca6e02ac 2020-01-07 stsp * This commit might be opened again soon.
2285 ca6e02ac 2020-01-07 stsp changed_commit->refcnt++;
2286 ca6e02ac 2020-01-07 stsp err = got_repo_cache_commit(repo, changed_commit_id,
2287 ca6e02ac 2020-01-07 stsp changed_commit);
2288 ca6e02ac 2020-01-07 stsp got_object_commit_close(changed_commit);
2291 ca6e02ac 2020-01-07 stsp free(path_packfile);
2292 ca6e02ac 2020-01-07 stsp free(changed_commit_id);
2293 ca6e02ac 2020-01-07 stsp return err;
