2 * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
3 * Copyright (c) 2020 Ori Bernstein <ori@openbsd.org>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <sys/types.h>
19 #include <sys/queue.h>
38 #include "got_object.h"
39 #include "got_error.h"
41 #include "got_repository.h"
43 #include "got_lib_sha1.h"
44 #include "got_lib_delta.h"
45 #include "got_lib_inflate.h"
46 #include "got_lib_object.h"
47 #include "got_lib_object_parse.h"
48 #include "got_lib_privsep.h"
49 #include "got_lib_pack.h"
52 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
56 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
59 static const struct got_error *
60 poll_fd(int fd, int events, int timeout)
68 pfd[0].events = events;
73 if (sigemptyset(&sigset) == -1)
74 return got_error_from_errno("sigemptyset");
75 if (sigaddset(&sigset, SIGWINCH) == -1)
76 return got_error_from_errno("sigaddset");
78 n = ppoll(pfd, 1, timeout == INFTIM ? NULL : &ts, &sigset);
80 return got_error_from_errno("ppoll");
82 return got_error(GOT_ERR_TIMEOUT);
83 if (pfd[0].revents & (POLLERR | POLLNVAL))
84 return got_error_from_errno("poll error");
85 if (pfd[0].revents & (events | POLLHUP))
88 return got_error(GOT_ERR_INTERRUPT);
91 static const struct got_error *
92 read_imsg(struct imsgbuf *ibuf)
94 const struct got_error *err;
97 err = poll_fd(ibuf->fd, POLLIN, INFTIM);
103 if (errno == EAGAIN) /* Could be a file-descriptor leak. */
104 return got_error(GOT_ERR_PRIVSEP_NO_FD);
105 return got_error(GOT_ERR_PRIVSEP_READ);
108 return got_error(GOT_ERR_PRIVSEP_PIPE);
113 const struct got_error *
114 got_privsep_wait_for_child(pid_t pid)
118 if (waitpid(pid, &child_status, 0) == -1)
119 return got_error_from_errno("waitpid");
121 if (!WIFEXITED(child_status))
122 return got_error(GOT_ERR_PRIVSEP_DIED);
124 if (WEXITSTATUS(child_status) != 0)
125 return got_error(GOT_ERR_PRIVSEP_EXIT);
130 static const struct got_error *
131 recv_imsg_error(struct imsg *imsg, size_t datalen)
133 struct got_imsg_error *ierr;
135 if (datalen != sizeof(*ierr))
136 return got_error(GOT_ERR_PRIVSEP_LEN);
139 if (ierr->code == GOT_ERR_ERRNO) {
140 static struct got_error serr;
141 serr.code = GOT_ERR_ERRNO;
142 serr.msg = strerror(ierr->errno_code);
146 return got_error(ierr->code);
149 const struct got_error *
150 got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
153 const struct got_error *err;
156 n = imsg_get(ibuf, imsg);
158 return got_error_from_errno("imsg_get");
161 err = read_imsg(ibuf);
164 n = imsg_get(ibuf, imsg);
166 return got_error_from_errno("imsg_get");
169 if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
170 return got_error(GOT_ERR_PRIVSEP_LEN);
172 if (imsg->hdr.type == GOT_IMSG_ERROR) {
173 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
174 return recv_imsg_error(imsg, datalen);
180 /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
182 got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
184 const struct got_error *poll_err;
185 struct got_imsg_error ierr;
188 ierr.code = err->code;
189 if (err->code == GOT_ERR_ERRNO)
190 ierr.errno_code = errno;
193 ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
195 fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
196 getprogname(), err->code, err->msg, strerror(errno));
200 poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
202 fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
203 getprogname(), err->code, err->msg, poll_err->msg);
207 ret = imsg_flush(ibuf);
209 fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
210 getprogname(), err->code, err->msg, strerror(errno));
216 static const struct got_error *
217 flush_imsg(struct imsgbuf *ibuf)
219 const struct got_error *err;
221 err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
225 if (imsg_flush(ibuf) == -1) {
227 return got_error_from_errno("imsg_flush");
233 const struct got_error *
234 got_privsep_flush_imsg(struct imsgbuf *ibuf)
236 return flush_imsg(ibuf);
239 const struct got_error *
240 got_privsep_send_stop(int fd)
242 const struct got_error *err = NULL;
245 imsg_init(&ibuf, fd);
247 if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
248 return got_error_from_errno("imsg_compose STOP");
250 err = flush_imsg(&ibuf);
254 const struct got_error *
255 got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd,
256 struct got_object_id *id)
258 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd,
259 id, sizeof(*id)) == -1)
260 return got_error_from_errno("imsg_compose OBJECT_REQUEST");
262 return flush_imsg(ibuf);
265 const struct got_error *
266 got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd,
267 struct got_object_id *id)
269 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd,
270 id, sizeof(*id)) == -1)
271 return got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST");
273 return flush_imsg(ibuf);
276 const struct got_error *
277 got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd)
279 const struct got_error *err = NULL;
281 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL, 0)
283 err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD");
288 return flush_imsg(ibuf);
291 const struct got_error *
292 got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen,
295 const struct got_error *err = NULL;
296 struct got_imsg_raw_obj iobj;
297 size_t len = sizeof(iobj);
300 iobj.hdrlen = hdrlen;
303 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX)
304 len += (size_t)size + hdrlen;
306 wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len);
308 err = got_error_from_errno("imsg_create RAW_OBJECT");
312 if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1) {
313 err = got_error_from_errno("imsg_add RAW_OBJECT");
318 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
319 if (imsg_add(wbuf, data, size + hdrlen) == -1) {
320 err = got_error_from_errno("imsg_add RAW_OBJECT");
327 imsg_close(ibuf, wbuf);
329 return flush_imsg(ibuf);
332 const struct got_error *
333 got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen,
334 struct imsgbuf *ibuf)
336 const struct got_error *err = NULL;
338 struct got_imsg_raw_obj *iobj;
343 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
347 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
349 switch (imsg.hdr.type) {
350 case GOT_IMSG_RAW_OBJECT:
351 if (datalen < sizeof(*iobj)) {
352 err = got_error(GOT_ERR_PRIVSEP_LEN);
357 *hdrlen = iobj->hdrlen;
359 if (datalen == sizeof(*iobj)) {
360 /* Data has been written to file descriptor. */
364 if (*size + *hdrlen > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
365 err = got_error(GOT_ERR_PRIVSEP_LEN);
369 *outbuf = malloc(*size + *hdrlen);
370 if (*outbuf == NULL) {
371 err = got_error_from_errno("malloc");
374 memcpy(*outbuf, imsg.data + sizeof(*iobj), *size + *hdrlen);
377 err = got_error(GOT_ERR_PRIVSEP_MSG);
386 const struct got_error *
387 got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
388 struct got_object_id *id, int pack_idx)
390 const struct got_error *err = NULL;
391 struct got_imsg_packed_object iobj;
395 if (pack_idx != -1) { /* commit is packed */
397 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
405 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, data, len)
407 err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
412 return flush_imsg(ibuf);
415 const struct got_error *
416 got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
417 struct got_object_id *id, int pack_idx)
419 const struct got_error *err = NULL;
424 len = sizeof(struct got_imsg_packed_object);
428 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
430 return got_error_from_errno("imsg_create TREE_REQUEST");
432 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
433 err = got_error_from_errno("imsg_add TREE_REQUEST");
438 if (pack_idx != -1) { /* tree is packed */
439 if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) {
440 err = got_error_from_errno("imsg_add TREE_REQUEST");
447 imsg_close(ibuf, wbuf);
449 return flush_imsg(ibuf);
452 const struct got_error *
453 got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
454 struct got_object_id *id, int pack_idx)
456 struct got_imsg_packed_object iobj;
460 if (pack_idx != -1) { /* tag is packed */
462 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
470 if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, data, len)
472 return got_error_from_errno("imsg_compose TAG_REQUEST");
474 return flush_imsg(ibuf);
477 const struct got_error *
478 got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
479 struct got_object_id *id, int pack_idx)
481 const struct got_error *err = NULL;
482 struct got_imsg_packed_object iobj;
486 if (pack_idx != -1) { /* blob is packed */
488 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
496 if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, data, len)
498 err = got_error_from_errno("imsg_compose BLOB_REQUEST");
503 return flush_imsg(ibuf);
506 const struct got_error *
507 got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
509 const struct got_error *err = NULL;
511 if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
513 err = got_error_from_errno("imsg_compose BLOB_OUTFD");
518 return flush_imsg(ibuf);
521 static const struct got_error *
522 send_fd(struct imsgbuf *ibuf, int imsg_code, int fd)
524 const struct got_error *err = NULL;
526 if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL, 0) == -1) {
527 err = got_error_from_errno("imsg_compose TMPFD");
532 return flush_imsg(ibuf);
535 const struct got_error *
536 got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
538 return send_fd(ibuf, GOT_IMSG_TMPFD, fd);
541 const struct got_error *
542 got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
544 struct got_imsg_object iobj;
546 memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id));
547 iobj.type = obj->type;
548 iobj.flags = obj->flags;
549 iobj.hdrlen = obj->hdrlen;
550 iobj.size = obj->size;
551 if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
552 iobj.pack_offset = obj->pack_offset;
553 iobj.pack_idx = obj->pack_idx;
556 if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
558 return got_error_from_errno("imsg_compose OBJECT");
560 return flush_imsg(ibuf);
563 const struct got_error *
564 got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd,
565 struct got_pathlist_head *have_refs, int fetch_all_branches,
566 struct got_pathlist_head *wanted_branches,
567 struct got_pathlist_head *wanted_refs, int list_refs_only, int verbosity)
569 const struct got_error *err = NULL;
572 struct got_pathlist_entry *pe;
573 struct got_imsg_fetch_request fetchreq;
575 memset(&fetchreq, 0, sizeof(fetchreq));
576 fetchreq.fetch_all_branches = fetch_all_branches;
577 fetchreq.list_refs_only = list_refs_only;
578 fetchreq.verbosity = verbosity;
579 TAILQ_FOREACH(pe, have_refs, entry)
580 fetchreq.n_have_refs++;
581 TAILQ_FOREACH(pe, wanted_branches, entry)
582 fetchreq.n_wanted_branches++;
583 TAILQ_FOREACH(pe, wanted_refs, entry)
584 fetchreq.n_wanted_refs++;
585 len = sizeof(struct got_imsg_fetch_request);
586 if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
588 return got_error(GOT_ERR_NO_SPACE);
591 if (imsg_compose(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, fd,
592 &fetchreq, sizeof(fetchreq)) == -1)
593 return got_error_from_errno(
594 "imsg_compose FETCH_SERVER_PROGRESS");
596 err = flush_imsg(ibuf);
603 TAILQ_FOREACH(pe, have_refs, entry) {
604 const char *name = pe->path;
605 size_t name_len = pe->path_len;
606 struct got_object_id *id = pe->data;
608 len = sizeof(struct got_imsg_fetch_have_ref) + name_len;
609 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len);
611 return got_error_from_errno("imsg_create FETCH_HAVE_REF");
613 /* Keep in sync with struct got_imsg_fetch_have_ref! */
614 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1) {
615 err = got_error_from_errno("imsg_add FETCH_HAVE_REF");
619 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
620 err = got_error_from_errno("imsg_add FETCH_HAVE_REF");
624 if (imsg_add(wbuf, name, name_len) == -1) {
625 err = got_error_from_errno("imsg_add FETCH_HAVE_REF");
631 imsg_close(ibuf, wbuf);
632 err = flush_imsg(ibuf);
637 TAILQ_FOREACH(pe, wanted_branches, entry) {
638 const char *name = pe->path;
639 size_t name_len = pe->path_len;
641 len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len;
642 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0,
645 return got_error_from_errno(
646 "imsg_create FETCH_WANTED_BRANCH");
648 /* Keep in sync with struct got_imsg_fetch_wanted_branch! */
649 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
650 err = got_error_from_errno(
651 "imsg_add FETCH_WANTED_BRANCH");
655 if (imsg_add(wbuf, name, name_len) == -1) {
656 err = got_error_from_errno(
657 "imsg_add FETCH_WANTED_BRANCH");
663 imsg_close(ibuf, wbuf);
664 err = flush_imsg(ibuf);
669 TAILQ_FOREACH(pe, wanted_refs, entry) {
670 const char *name = pe->path;
671 size_t name_len = pe->path_len;
673 len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len;
674 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0,
677 return got_error_from_errno(
678 "imsg_create FETCH_WANTED_REF");
680 /* Keep in sync with struct got_imsg_fetch_wanted_ref! */
681 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
682 err = got_error_from_errno(
683 "imsg_add FETCH_WANTED_REF");
687 if (imsg_add(wbuf, name, name_len) == -1) {
688 err = got_error_from_errno(
689 "imsg_add FETCH_WANTED_REF");
695 imsg_close(ibuf, wbuf);
696 err = flush_imsg(ibuf);
706 const struct got_error *
707 got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd)
709 return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd);
712 const struct got_error *
713 got_privsep_recv_fetch_progress(int *done, struct got_object_id **id,
714 char **refname, struct got_pathlist_head *symrefs, char **server_progress,
715 off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf)
717 const struct got_error *err = NULL;
720 struct got_imsg_fetch_symrefs *isymrefs = NULL;
728 *server_progress = NULL;
730 memset(pack_sha1, 0, SHA1_DIGEST_LENGTH);
732 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
736 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
737 switch (imsg.hdr.type) {
739 if (datalen < sizeof(struct got_imsg_error)) {
740 err = got_error(GOT_ERR_PRIVSEP_LEN);
743 err = recv_imsg_error(&imsg, datalen);
745 case GOT_IMSG_FETCH_SYMREFS:
746 if (datalen < sizeof(*isymrefs)) {
747 err = got_error(GOT_ERR_PRIVSEP_LEN);
750 if (isymrefs != NULL) {
751 err = got_error(GOT_ERR_PRIVSEP_MSG);
754 isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data;
755 off = sizeof(*isymrefs);
756 remain = datalen - off;
757 for (n = 0; n < isymrefs->nsymrefs; n++) {
758 struct got_imsg_fetch_symref *s;
760 if (remain < sizeof(struct got_imsg_fetch_symref)) {
761 err = got_error(GOT_ERR_PRIVSEP_LEN);
764 s = (struct got_imsg_fetch_symref *)(imsg.data + off);
766 remain -= sizeof(*s);
767 if (remain < s->name_len) {
768 err = got_error(GOT_ERR_PRIVSEP_LEN);
771 name = strndup(imsg.data + off, s->name_len);
773 err = got_error_from_errno("strndup");
777 remain -= s->name_len;
778 if (remain < s->target_len) {
779 err = got_error(GOT_ERR_PRIVSEP_LEN);
783 target = strndup(imsg.data + off, s->target_len);
784 if (target == NULL) {
785 err = got_error_from_errno("strndup");
789 off += s->target_len;
790 remain -= s->target_len;
791 err = got_pathlist_append(symrefs, name, target);
799 case GOT_IMSG_FETCH_REF:
800 if (datalen <= SHA1_DIGEST_LENGTH) {
801 err = got_error(GOT_ERR_PRIVSEP_MSG);
804 *id = malloc(sizeof(**id));
806 err = got_error_from_errno("malloc");
809 memcpy((*id)->sha1, imsg.data, SHA1_DIGEST_LENGTH);
810 *refname = strndup(imsg.data + SHA1_DIGEST_LENGTH,
811 datalen - SHA1_DIGEST_LENGTH);
812 if (*refname == NULL) {
813 err = got_error_from_errno("strndup");
817 case GOT_IMSG_FETCH_SERVER_PROGRESS:
819 err = got_error(GOT_ERR_PRIVSEP_LEN);
822 *server_progress = strndup(imsg.data, datalen);
823 if (*server_progress == NULL) {
824 err = got_error_from_errno("strndup");
827 for (i = 0; i < datalen; i++) {
828 if (!isprint((unsigned char)(*server_progress)[i]) &&
829 !isspace((unsigned char)(*server_progress)[i])) {
830 err = got_error(GOT_ERR_PRIVSEP_MSG);
831 free(*server_progress);
832 *server_progress = NULL;
837 case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS:
838 if (datalen < sizeof(*packfile_size)) {
839 err = got_error(GOT_ERR_PRIVSEP_MSG);
842 memcpy(packfile_size, imsg.data, sizeof(*packfile_size));
844 case GOT_IMSG_FETCH_DONE:
845 if (datalen != SHA1_DIGEST_LENGTH) {
846 err = got_error(GOT_ERR_PRIVSEP_MSG);
849 memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH);
853 err = got_error(GOT_ERR_PRIVSEP_MSG);
867 static const struct got_error *
868 send_send_ref(const char *name, size_t name_len, struct got_object_id *id,
869 int delete, struct imsgbuf *ibuf)
871 const struct got_error *err = NULL;
875 len = sizeof(struct got_imsg_send_ref) + name_len;
876 wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF, 0, 0, len);
878 return got_error_from_errno("imsg_create SEND_REF");
880 /* Keep in sync with struct got_imsg_send_ref! */
881 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1) {
882 err = got_error_from_errno("imsg_add SEND_REF");
886 if (imsg_add(wbuf, &delete, sizeof(delete)) == -1) {
887 err = got_error_from_errno("imsg_add SEND_REF");
891 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
892 err = got_error_from_errno("imsg_add SEND_REF");
896 if (imsg_add(wbuf, name, name_len) == -1) {
897 err = got_error_from_errno("imsg_add SEND_REF");
903 imsg_close(ibuf, wbuf);
904 return flush_imsg(ibuf);
907 const struct got_error *
908 got_privsep_send_send_req(struct imsgbuf *ibuf, int fd,
909 struct got_pathlist_head *have_refs,
910 struct got_pathlist_head *delete_refs,
913 const struct got_error *err = NULL;
914 struct got_pathlist_entry *pe;
915 struct got_imsg_send_request sendreq;
916 struct got_object_id zero_id;
918 memset(&zero_id, 0, sizeof(zero_id));
919 memset(&sendreq, 0, sizeof(sendreq));
920 sendreq.verbosity = verbosity;
921 TAILQ_FOREACH(pe, have_refs, entry)
923 TAILQ_FOREACH(pe, delete_refs, entry)
925 if (imsg_compose(ibuf, GOT_IMSG_SEND_REQUEST, 0, 0, fd,
926 &sendreq, sizeof(sendreq)) == -1) {
927 err = got_error_from_errno(
928 "imsg_compose FETCH_SERVER_PROGRESS");
932 err = flush_imsg(ibuf);
937 TAILQ_FOREACH(pe, have_refs, entry) {
938 const char *name = pe->path;
939 size_t name_len = pe->path_len;
940 struct got_object_id *id = pe->data;
941 err = send_send_ref(name, name_len, id, 0, ibuf);
946 TAILQ_FOREACH(pe, delete_refs, entry) {
947 const char *name = pe->path;
948 size_t name_len = pe->path_len;
949 err = send_send_ref(name, name_len, &zero_id, 1, ibuf);
954 if (fd != -1 && close(fd) == -1 && err == NULL)
955 err = got_error_from_errno("close");
960 const struct got_error *
961 got_privsep_recv_send_remote_refs(struct got_pathlist_head *remote_refs,
962 struct imsgbuf *ibuf)
964 const struct got_error *err = NULL;
968 struct got_imsg_send_remote_ref iremote_ref;
969 struct got_object_id *id = NULL;
970 char *refname = NULL;
971 struct got_pathlist_entry *new;
974 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
977 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
978 switch (imsg.hdr.type) {
980 if (datalen < sizeof(struct got_imsg_error)) {
981 err = got_error(GOT_ERR_PRIVSEP_LEN);
984 err = recv_imsg_error(&imsg, datalen);
986 case GOT_IMSG_SEND_REMOTE_REF:
987 if (datalen < sizeof(iremote_ref)) {
988 err = got_error(GOT_ERR_PRIVSEP_MSG);
991 memcpy(&iremote_ref, imsg.data, sizeof(iremote_ref));
992 if (datalen != sizeof(iremote_ref) +
993 iremote_ref.name_len) {
994 err = got_error(GOT_ERR_PRIVSEP_MSG);
997 id = malloc(sizeof(*id));
999 err = got_error_from_errno("malloc");
1002 memcpy(id->sha1, iremote_ref.id, SHA1_DIGEST_LENGTH);
1003 refname = strndup(imsg.data + sizeof(iremote_ref),
1004 datalen - sizeof(iremote_ref));
1005 if (refname == NULL) {
1006 err = got_error_from_errno("strndup");
1009 err = got_pathlist_insert(&new, remote_refs,
1013 if (new == NULL) { /* duplicate which wasn't inserted */
1020 case GOT_IMSG_SEND_PACK_REQUEST:
1022 err = got_error(GOT_ERR_PRIVSEP_MSG);
1025 /* got-send-pack is now waiting for a pack file. */
1029 err = got_error(GOT_ERR_PRIVSEP_MSG);
1040 const struct got_error *
1041 got_privsep_send_packfd(struct imsgbuf *ibuf, int fd)
1043 return send_fd(ibuf, GOT_IMSG_SEND_PACKFD, fd);
1046 const struct got_error *
1047 got_privsep_recv_send_progress(int *done, off_t *bytes_sent,
1048 int *success, char **refname, struct imsgbuf *ibuf)
1050 const struct got_error *err = NULL;
1053 struct got_imsg_send_ref_status iref_status;
1055 /* Do not reset the current value of 'bytes_sent', it accumulates. */
1060 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1064 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1065 switch (imsg.hdr.type) {
1066 case GOT_IMSG_ERROR:
1067 if (datalen < sizeof(struct got_imsg_error)) {
1068 err = got_error(GOT_ERR_PRIVSEP_LEN);
1071 err = recv_imsg_error(&imsg, datalen);
1073 case GOT_IMSG_SEND_UPLOAD_PROGRESS:
1074 if (datalen < sizeof(*bytes_sent)) {
1075 err = got_error(GOT_ERR_PRIVSEP_MSG);
1078 memcpy(bytes_sent, imsg.data, sizeof(*bytes_sent));
1080 case GOT_IMSG_SEND_REF_STATUS:
1081 if (datalen < sizeof(iref_status)) {
1082 err = got_error(GOT_ERR_PRIVSEP_MSG);
1085 memcpy(&iref_status, imsg.data, sizeof(iref_status));
1086 if (datalen != sizeof(iref_status) + iref_status.name_len) {
1087 err = got_error(GOT_ERR_PRIVSEP_MSG);
1090 *success = iref_status.success;
1091 *refname = strndup(imsg.data + sizeof(iref_status),
1092 iref_status.name_len);
1094 case GOT_IMSG_SEND_DONE:
1096 err = got_error(GOT_ERR_PRIVSEP_MSG);
1102 err = got_error(GOT_ERR_PRIVSEP_MSG);
1110 const struct got_error *
1111 got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1,
1114 const struct got_error *err = NULL;
1116 /* Keep in sync with struct got_imsg_index_pack_request */
1117 if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd,
1118 pack_sha1, SHA1_DIGEST_LENGTH) == -1) {
1119 err = got_error_from_errno("imsg_compose INDEX_REQUEST");
1123 return flush_imsg(ibuf);
1126 const struct got_error *
1127 got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd)
1129 return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd);
1132 const struct got_error *
1133 got_privsep_recv_index_progress(int *done, int *nobj_total,
1134 int *nobj_indexed, int *nobj_loose, int *nobj_resolved,
1135 struct imsgbuf *ibuf)
1137 const struct got_error *err = NULL;
1139 struct got_imsg_index_pack_progress *iprogress;
1147 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1151 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1152 switch (imsg.hdr.type) {
1153 case GOT_IMSG_ERROR:
1154 if (datalen < sizeof(struct got_imsg_error)) {
1155 err = got_error(GOT_ERR_PRIVSEP_LEN);
1158 err = recv_imsg_error(&imsg, datalen);
1160 case GOT_IMSG_IDXPACK_PROGRESS:
1161 if (datalen < sizeof(*iprogress)) {
1162 err = got_error(GOT_ERR_PRIVSEP_LEN);
1165 iprogress = (struct got_imsg_index_pack_progress *)imsg.data;
1166 *nobj_total = iprogress->nobj_total;
1167 *nobj_indexed = iprogress->nobj_indexed;
1168 *nobj_loose = iprogress->nobj_loose;
1169 *nobj_resolved = iprogress->nobj_resolved;
1171 case GOT_IMSG_IDXPACK_DONE:
1173 err = got_error(GOT_ERR_PRIVSEP_LEN);
1179 err = got_error(GOT_ERR_PRIVSEP_MSG);
1187 const struct got_error *
1188 got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
1189 struct imsgbuf *ibuf)
1191 struct got_imsg_object *iobj;
1192 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1194 if (datalen != sizeof(*iobj))
1195 return got_error(GOT_ERR_PRIVSEP_LEN);
1198 *obj = calloc(1, sizeof(**obj));
1200 return got_error_from_errno("calloc");
1202 memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH);
1203 (*obj)->type = iobj->type;
1204 (*obj)->flags = iobj->flags;
1205 (*obj)->hdrlen = iobj->hdrlen;
1206 (*obj)->size = iobj->size;
1207 /* path_packfile is handled by caller */
1208 if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
1209 (*obj)->pack_offset = iobj->pack_offset;
1210 (*obj)->pack_idx = iobj->pack_idx;
1212 STAILQ_INIT(&(*obj)->deltas.entries);
1216 const struct got_error *
1217 got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
1219 const struct got_error *err = NULL;
1221 const size_t min_datalen =
1222 MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
1226 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1230 switch (imsg.hdr.type) {
1231 case GOT_IMSG_OBJECT:
1232 err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
1235 err = got_error(GOT_ERR_PRIVSEP_MSG);
1244 static const struct got_error *
1245 send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
1248 const struct got_error *err = NULL;
1249 size_t offset, remain;
1252 remain = logmsg_len;
1253 while (remain > 0) {
1254 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1256 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
1257 commit->logmsg + offset, n) == -1) {
1258 err = got_error_from_errno("imsg_compose "
1263 err = flush_imsg(ibuf);
1274 const struct got_error *
1275 got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
1277 const struct got_error *err = NULL;
1278 struct got_imsg_commit_object *icommit;
1281 struct got_object_qid *qid;
1282 size_t author_len = strlen(commit->author);
1283 size_t committer_len = strlen(commit->committer);
1284 size_t logmsg_len = strlen(commit->logmsg);
1286 total = sizeof(*icommit) + author_len + committer_len +
1287 commit->nparents * SHA1_DIGEST_LENGTH;
1289 buf = malloc(total);
1291 return got_error_from_errno("malloc");
1293 icommit = (struct got_imsg_commit_object *)buf;
1294 memcpy(icommit->tree_id, commit->tree_id->sha1,
1295 sizeof(icommit->tree_id));
1296 icommit->author_len = author_len;
1297 icommit->author_time = commit->author_time;
1298 icommit->author_gmtoff = commit->author_gmtoff;
1299 icommit->committer_len = committer_len;
1300 icommit->committer_time = commit->committer_time;
1301 icommit->committer_gmtoff = commit->committer_gmtoff;
1302 icommit->logmsg_len = logmsg_len;
1303 icommit->nparents = commit->nparents;
1305 len = sizeof(*icommit);
1306 memcpy(buf + len, commit->author, author_len);
1308 memcpy(buf + len, commit->committer, committer_len);
1309 len += committer_len;
1310 STAILQ_FOREACH(qid, &commit->parent_ids, entry) {
1311 memcpy(buf + len, &qid->id, SHA1_DIGEST_LENGTH);
1312 len += SHA1_DIGEST_LENGTH;
1315 if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
1316 err = got_error_from_errno("imsg_compose COMMIT");
1320 if (logmsg_len == 0 ||
1321 logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1322 err = flush_imsg(ibuf);
1326 err = send_commit_logmsg(ibuf, commit, logmsg_len);
1332 static const struct got_error *
1333 get_commit_from_imsg(struct got_commit_object **commit,
1334 struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf)
1336 const struct got_error *err = NULL;
1337 struct got_imsg_commit_object *icommit;
1341 if (datalen < sizeof(*icommit))
1342 return got_error(GOT_ERR_PRIVSEP_LEN);
1344 icommit = imsg->data;
1345 if (datalen != sizeof(*icommit) + icommit->author_len +
1346 icommit->committer_len +
1347 icommit->nparents * SHA1_DIGEST_LENGTH)
1348 return got_error(GOT_ERR_PRIVSEP_LEN);
1350 if (icommit->nparents < 0)
1351 return got_error(GOT_ERR_PRIVSEP_LEN);
1353 len += sizeof(*icommit);
1355 *commit = got_object_commit_alloc_partial();
1356 if (*commit == NULL)
1357 return got_error_from_errno(
1358 "got_object_commit_alloc_partial");
1360 memcpy((*commit)->tree_id->sha1, icommit->tree_id,
1361 SHA1_DIGEST_LENGTH);
1362 (*commit)->author_time = icommit->author_time;
1363 (*commit)->author_gmtoff = icommit->author_gmtoff;
1364 (*commit)->committer_time = icommit->committer_time;
1365 (*commit)->committer_gmtoff = icommit->committer_gmtoff;
1367 if (icommit->author_len == 0) {
1368 (*commit)->author = strdup("");
1369 if ((*commit)->author == NULL) {
1370 err = got_error_from_errno("strdup");
1374 (*commit)->author = malloc(icommit->author_len + 1);
1375 if ((*commit)->author == NULL) {
1376 err = got_error_from_errno("malloc");
1379 memcpy((*commit)->author, imsg->data + len,
1380 icommit->author_len);
1381 (*commit)->author[icommit->author_len] = '\0';
1383 len += icommit->author_len;
1385 if (icommit->committer_len == 0) {
1386 (*commit)->committer = strdup("");
1387 if ((*commit)->committer == NULL) {
1388 err = got_error_from_errno("strdup");
1392 (*commit)->committer =
1393 malloc(icommit->committer_len + 1);
1394 if ((*commit)->committer == NULL) {
1395 err = got_error_from_errno("malloc");
1398 memcpy((*commit)->committer, imsg->data + len,
1399 icommit->committer_len);
1400 (*commit)->committer[icommit->committer_len] = '\0';
1402 len += icommit->committer_len;
1404 if (icommit->logmsg_len == 0) {
1405 (*commit)->logmsg = strdup("");
1406 if ((*commit)->logmsg == NULL) {
1407 err = got_error_from_errno("strdup");
1411 size_t offset = 0, remain = icommit->logmsg_len;
1413 (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
1414 if ((*commit)->logmsg == NULL) {
1415 err = got_error_from_errno("malloc");
1418 while (remain > 0) {
1419 struct imsg imsg_log;
1420 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1423 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1427 if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) {
1428 err = got_error(GOT_ERR_PRIVSEP_MSG);
1432 memcpy((*commit)->logmsg + offset,
1434 imsg_free(&imsg_log);
1438 (*commit)->logmsg[icommit->logmsg_len] = '\0';
1441 for (i = 0; i < icommit->nparents; i++) {
1442 struct got_object_qid *qid;
1444 err = got_object_qid_alloc_partial(&qid);
1447 memcpy(&qid->id, imsg->data + len +
1448 i * SHA1_DIGEST_LENGTH, sizeof(qid->id));
1449 STAILQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
1450 (*commit)->nparents++;
1454 got_object_commit_close(*commit);
1460 const struct got_error *
1461 got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
1463 const struct got_error *err = NULL;
1466 const size_t min_datalen =
1467 MIN(sizeof(struct got_imsg_error),
1468 sizeof(struct got_imsg_commit_object));
1472 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1476 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1478 switch (imsg.hdr.type) {
1479 case GOT_IMSG_COMMIT:
1480 err = get_commit_from_imsg(commit, &imsg, datalen, ibuf);
1483 err = got_error(GOT_ERR_PRIVSEP_MSG);
1492 const struct got_error *
1493 got_privsep_send_tree(struct imsgbuf *ibuf, struct got_pathlist_head *entries,
1496 const struct got_error *err = NULL;
1497 struct got_imsg_tree_object itree;
1498 struct got_pathlist_entry *pe;
1500 int nimsg; /* number of imsg queued in ibuf */
1502 itree.nentries = nentries;
1503 if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
1505 return got_error_from_errno("imsg_compose TREE");
1507 totlen = sizeof(itree);
1509 TAILQ_FOREACH(pe, entries, entry) {
1510 const char *name = pe->path;
1511 struct got_parsed_tree_entry *pte = pe->data;
1513 size_t namelen = strlen(name);
1514 size_t len = sizeof(struct got_imsg_tree_entry) + namelen;
1516 if (len > MAX_IMSGSIZE)
1517 return got_error(GOT_ERR_NO_SPACE);
1520 if (totlen + len >= MAX_IMSGSIZE - (IMSG_HEADER_SIZE * nimsg)) {
1521 err = flush_imsg(ibuf);
1527 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRY, 0, 0, len);
1529 return got_error_from_errno("imsg_create TREE_ENTRY");
1531 /* Keep in sync with struct got_imsg_tree_object definition! */
1532 if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1) {
1533 err = got_error_from_errno("imsg_add TREE_ENTRY");
1537 if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1) {
1538 err = got_error_from_errno("imsg_add TREE_ENTRY");
1543 if (imsg_add(wbuf, name, namelen) == -1) {
1544 err = got_error_from_errno("imsg_add TREE_ENTRY");
1550 imsg_close(ibuf, wbuf);
1555 return flush_imsg(ibuf);
1558 const struct got_error *
1559 got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
1561 const struct got_error *err = NULL;
1562 const size_t min_datalen =
1563 MIN(sizeof(struct got_imsg_error),
1564 sizeof(struct got_imsg_tree_object));
1565 struct got_imsg_tree_object *itree;
1570 err = read_imsg(ibuf);
1578 struct got_imsg_tree_entry *ite;
1579 struct got_tree_entry *te = NULL;
1581 n = imsg_get(ibuf, &imsg);
1583 if (*tree && (*tree)->nentries != nentries)
1588 if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen) {
1590 err = got_error(GOT_ERR_PRIVSEP_LEN);
1594 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1596 switch (imsg.hdr.type) {
1597 case GOT_IMSG_ERROR:
1598 err = recv_imsg_error(&imsg, datalen);
1601 /* This message should only appear once. */
1602 if (*tree != NULL) {
1603 err = got_error(GOT_ERR_PRIVSEP_MSG);
1606 if (datalen != sizeof(*itree)) {
1607 err = got_error(GOT_ERR_PRIVSEP_LEN);
1611 *tree = malloc(sizeof(**tree));
1612 if (*tree == NULL) {
1613 err = got_error_from_errno("malloc");
1616 (*tree)->entries = calloc(itree->nentries,
1617 sizeof(struct got_tree_entry));
1618 if ((*tree)->entries == NULL) {
1619 err = got_error_from_errno("malloc");
1622 (*tree)->nentries = itree->nentries;
1623 (*tree)->refcnt = 0;
1625 case GOT_IMSG_TREE_ENTRY:
1626 /* This message should be preceeded by GOT_IMSG_TREE. */
1627 if (*tree == NULL) {
1628 err = got_error(GOT_ERR_PRIVSEP_MSG);
1631 if (datalen < sizeof(*ite) || datalen > MAX_IMSGSIZE) {
1632 err = got_error(GOT_ERR_PRIVSEP_LEN);
1636 /* Remaining data contains the entry's name. */
1637 datalen -= sizeof(*ite);
1638 if (datalen == 0 || datalen > MAX_IMSGSIZE) {
1639 err = got_error(GOT_ERR_PRIVSEP_LEN);
1644 if (datalen + 1 > sizeof(te->name)) {
1645 err = got_error(GOT_ERR_NO_SPACE);
1648 te = &(*tree)->entries[nentries];
1649 memcpy(te->name, imsg.data + sizeof(*ite), datalen);
1650 te->name[datalen] = '\0';
1652 memcpy(te->id.sha1, ite->id, SHA1_DIGEST_LENGTH);
1653 te->mode = ite->mode;
1658 err = got_error(GOT_ERR_PRIVSEP_MSG);
1667 if (*tree && (*tree)->nentries != nentries) {
1669 err = got_error(GOT_ERR_PRIVSEP_LEN);
1670 got_object_tree_close(*tree);
1677 const struct got_error *
1678 got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
1679 const uint8_t *data)
1681 struct got_imsg_blob iblob;
1684 iblob.hdrlen = hdrlen;
1689 if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
1690 return got_error(GOT_ERR_NO_SPACE);
1692 buf = malloc(sizeof(iblob) + size);
1694 return got_error_from_errno("malloc");
1696 memcpy(buf, &iblob, sizeof(iblob));
1697 memcpy(buf + sizeof(iblob), data, size);
1698 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
1699 sizeof(iblob) + size) == -1) {
1701 return got_error_from_errno("imsg_compose BLOB");
1705 /* Data has already been written to file descriptor. */
1706 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
1707 sizeof(iblob)) == -1)
1708 return got_error_from_errno("imsg_compose BLOB");
1712 return flush_imsg(ibuf);
1715 const struct got_error *
1716 got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1717 struct imsgbuf *ibuf)
1719 const struct got_error *err = NULL;
1721 struct got_imsg_blob *iblob;
1726 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1730 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1732 switch (imsg.hdr.type) {
1734 if (datalen < sizeof(*iblob)) {
1735 err = got_error(GOT_ERR_PRIVSEP_LEN);
1739 *size = iblob->size;
1740 *hdrlen = iblob->hdrlen;
1742 if (datalen == sizeof(*iblob)) {
1743 /* Data has been written to file descriptor. */
1747 if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX) {
1748 err = got_error(GOT_ERR_PRIVSEP_LEN);
1752 *outbuf = malloc(*size);
1753 if (*outbuf == NULL) {
1754 err = got_error_from_errno("malloc");
1757 memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
1760 err = got_error(GOT_ERR_PRIVSEP_MSG);
1769 static const struct got_error *
1770 send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
1772 const struct got_error *err = NULL;
1773 size_t offset, remain;
1776 remain = tagmsg_len;
1777 while (remain > 0) {
1778 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1780 if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
1781 tag->tagmsg + offset, n) == -1) {
1782 err = got_error_from_errno("imsg_compose TAG_TAGMSG");
1786 err = flush_imsg(ibuf);
1797 const struct got_error *
1798 got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1800 const struct got_error *err = NULL;
1801 struct got_imsg_tag_object *itag;
1804 size_t tag_len = strlen(tag->tag);
1805 size_t tagger_len = strlen(tag->tagger);
1806 size_t tagmsg_len = strlen(tag->tagmsg);
1808 total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1810 buf = malloc(total);
1812 return got_error_from_errno("malloc");
1814 itag = (struct got_imsg_tag_object *)buf;
1815 memcpy(itag->id, tag->id.sha1, sizeof(itag->id));
1816 itag->obj_type = tag->obj_type;
1817 itag->tag_len = tag_len;
1818 itag->tagger_len = tagger_len;
1819 itag->tagger_time = tag->tagger_time;
1820 itag->tagger_gmtoff = tag->tagger_gmtoff;
1821 itag->tagmsg_len = tagmsg_len;
1823 len = sizeof(*itag);
1824 memcpy(buf + len, tag->tag, tag_len);
1826 memcpy(buf + len, tag->tagger, tagger_len);
1829 if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1830 err = got_error_from_errno("imsg_compose TAG");
1834 if (tagmsg_len == 0 ||
1835 tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1836 err = flush_imsg(ibuf);
1840 err = send_tagmsg(ibuf, tag, tagmsg_len);
1846 const struct got_error *
1847 got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1849 const struct got_error *err = NULL;
1851 struct got_imsg_tag_object *itag;
1852 size_t len, datalen;
1853 const size_t min_datalen =
1854 MIN(sizeof(struct got_imsg_error),
1855 sizeof(struct got_imsg_tag_object));
1859 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1863 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1866 switch (imsg.hdr.type) {
1868 if (datalen < sizeof(*itag)) {
1869 err = got_error(GOT_ERR_PRIVSEP_LEN);
1873 if (datalen != sizeof(*itag) + itag->tag_len +
1875 err = got_error(GOT_ERR_PRIVSEP_LEN);
1878 len += sizeof(*itag);
1880 *tag = calloc(1, sizeof(**tag));
1882 err = got_error_from_errno("calloc");
1886 memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH);
1888 if (itag->tag_len == 0) {
1889 (*tag)->tag = strdup("");
1890 if ((*tag)->tag == NULL) {
1891 err = got_error_from_errno("strdup");
1895 (*tag)->tag = malloc(itag->tag_len + 1);
1896 if ((*tag)->tag == NULL) {
1897 err = got_error_from_errno("malloc");
1900 memcpy((*tag)->tag, imsg.data + len,
1902 (*tag)->tag[itag->tag_len] = '\0';
1904 len += itag->tag_len;
1906 (*tag)->obj_type = itag->obj_type;
1907 (*tag)->tagger_time = itag->tagger_time;
1908 (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1910 if (itag->tagger_len == 0) {
1911 (*tag)->tagger = strdup("");
1912 if ((*tag)->tagger == NULL) {
1913 err = got_error_from_errno("strdup");
1917 (*tag)->tagger = malloc(itag->tagger_len + 1);
1918 if ((*tag)->tagger == NULL) {
1919 err = got_error_from_errno("malloc");
1922 memcpy((*tag)->tagger, imsg.data + len,
1924 (*tag)->tagger[itag->tagger_len] = '\0';
1926 len += itag->tagger_len;
1928 if (itag->tagmsg_len == 0) {
1929 (*tag)->tagmsg = strdup("");
1930 if ((*tag)->tagmsg == NULL) {
1931 err = got_error_from_errno("strdup");
1935 size_t offset = 0, remain = itag->tagmsg_len;
1937 (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1938 if ((*tag)->tagmsg == NULL) {
1939 err = got_error_from_errno("malloc");
1942 while (remain > 0) {
1943 struct imsg imsg_log;
1944 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1947 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1951 if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1952 return got_error(GOT_ERR_PRIVSEP_MSG);
1954 memcpy((*tag)->tagmsg + offset, imsg_log.data,
1956 imsg_free(&imsg_log);
1960 (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1965 err = got_error(GOT_ERR_PRIVSEP_MSG);
1974 const struct got_error *
1975 got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1976 struct got_packidx *packidx)
1978 const struct got_error *err = NULL;
1979 struct got_imsg_packidx ipackidx;
1980 struct got_imsg_pack ipack;
1983 ipackidx.len = packidx->len;
1984 ipackidx.packfile_size = pack->filesize;
1985 fd = dup(packidx->fd);
1987 return got_error_from_errno("dup");
1989 if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1990 sizeof(ipackidx)) == -1) {
1991 err = got_error_from_errno("imsg_compose PACKIDX");
1996 if (strlcpy(ipack.path_packfile, pack->path_packfile,
1997 sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1998 return got_error(GOT_ERR_NO_SPACE);
1999 ipack.filesize = pack->filesize;
2003 return got_error_from_errno("dup");
2005 if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
2007 err = got_error_from_errno("imsg_compose PACK");
2012 return flush_imsg(ibuf);
2015 const struct got_error *
2016 got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
2017 struct got_object_id *id)
2019 struct got_imsg_packed_object iobj;
2022 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2024 if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
2025 &iobj, sizeof(iobj)) == -1)
2026 return got_error_from_errno("imsg_compose "
2027 "PACKED_OBJECT_REQUEST");
2029 return flush_imsg(ibuf);
2032 const struct got_error *
2033 got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx,
2034 struct got_object_id *id)
2036 struct got_imsg_packed_object iobj;
2039 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2041 if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1,
2042 &iobj, sizeof(iobj)) == -1)
2043 return got_error_from_errno("imsg_compose "
2044 "PACKED_OBJECT_REQUEST");
2046 return flush_imsg(ibuf);
2049 const struct got_error *
2050 got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
2052 const struct got_error *err = NULL;
2054 if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
2056 err = got_error_from_errno("imsg_compose "
2057 "GITCONFIG_PARSE_REQUEST");
2062 return flush_imsg(ibuf);
2065 const struct got_error *
2066 got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
2068 if (imsg_compose(ibuf,
2069 GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
2071 return got_error_from_errno("imsg_compose "
2072 "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
2074 return flush_imsg(ibuf);
2077 const struct got_error *
2078 got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf)
2080 if (imsg_compose(ibuf,
2081 GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1,
2083 return got_error_from_errno("imsg_compose "
2084 "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST");
2086 return flush_imsg(ibuf);
2090 const struct got_error *
2091 got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
2093 if (imsg_compose(ibuf,
2094 GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
2095 return got_error_from_errno("imsg_compose "
2096 "GITCONFIG_AUTHOR_NAME_REQUEST");
2098 return flush_imsg(ibuf);
2101 const struct got_error *
2102 got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
2104 if (imsg_compose(ibuf,
2105 GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
2106 return got_error_from_errno("imsg_compose "
2107 "GITCONFIG_AUTHOR_EMAIL_REQUEST");
2109 return flush_imsg(ibuf);
2112 const struct got_error *
2113 got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
2115 if (imsg_compose(ibuf,
2116 GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2117 return got_error_from_errno("imsg_compose "
2118 "GITCONFIG_REMOTE_REQUEST");
2120 return flush_imsg(ibuf);
2123 const struct got_error *
2124 got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf)
2126 if (imsg_compose(ibuf,
2127 GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL, 0) == -1)
2128 return got_error_from_errno("imsg_compose "
2129 "GITCONFIG_OWNER_REQUEST");
2131 return flush_imsg(ibuf);
2134 const struct got_error *
2135 got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
2137 const struct got_error *err = NULL;
2140 const size_t min_datalen = 0;
2144 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2147 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2149 switch (imsg.hdr.type) {
2150 case GOT_IMSG_GITCONFIG_STR_VAL:
2153 /* datalen does not include terminating \0 */
2154 *str = malloc(datalen + 1);
2156 err = got_error_from_errno("malloc");
2159 memcpy(*str, imsg.data, datalen);
2160 (*str)[datalen] = '\0';
2163 err = got_error(GOT_ERR_PRIVSEP_MSG);
2171 const struct got_error *
2172 got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
2174 const struct got_error *err = NULL;
2177 const size_t min_datalen =
2178 MIN(sizeof(struct got_imsg_error), sizeof(int));
2182 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2185 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2187 switch (imsg.hdr.type) {
2188 case GOT_IMSG_GITCONFIG_INT_VAL:
2189 if (datalen != sizeof(*val)) {
2190 err = got_error(GOT_ERR_PRIVSEP_LEN);
2193 memcpy(val, imsg.data, sizeof(*val));
2196 err = got_error(GOT_ERR_PRIVSEP_MSG);
2205 free_remote_data(struct got_remote_repo *remote)
2210 free(remote->fetch_url);
2211 free(remote->send_url);
2212 for (i = 0; i < remote->nfetch_branches; i++)
2213 free(remote->fetch_branches[i]);
2214 free(remote->fetch_branches);
2215 for (i = 0; i < remote->nsend_branches; i++)
2216 free(remote->send_branches[i]);
2217 free(remote->send_branches);
2218 for (i = 0; i < remote->nfetch_refs; i++)
2219 free(remote->fetch_refs[i]);
2220 free(remote->fetch_refs);
2223 const struct got_error *
2224 got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
2225 int *nremotes, struct imsgbuf *ibuf)
2227 const struct got_error *err = NULL;
2230 struct got_imsg_remotes iremotes;
2231 struct got_imsg_remote iremote;
2235 iremotes.nremotes = 0;
2237 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
2240 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2242 switch (imsg.hdr.type) {
2243 case GOT_IMSG_GITCONFIG_REMOTES:
2244 if (datalen != sizeof(iremotes)) {
2245 err = got_error(GOT_ERR_PRIVSEP_LEN);
2248 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2249 if (iremotes.nremotes == 0) {
2256 return got_error(GOT_ERR_PRIVSEP_MSG);
2261 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2262 if (*remotes == NULL)
2263 return got_error_from_errno("recallocarray");
2265 while (*nremotes < iremotes.nremotes) {
2266 struct got_remote_repo *remote;
2268 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
2271 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2273 switch (imsg.hdr.type) {
2274 case GOT_IMSG_GITCONFIG_REMOTE:
2275 remote = &(*remotes)[*nremotes];
2276 memset(remote, 0, sizeof(*remote));
2277 if (datalen < sizeof(iremote)) {
2278 err = got_error(GOT_ERR_PRIVSEP_LEN);
2281 memcpy(&iremote, imsg.data, sizeof(iremote));
2282 if (iremote.name_len == 0 ||
2283 iremote.fetch_url_len == 0 ||
2284 iremote.send_url_len == 0 ||
2285 (sizeof(iremote) + iremote.name_len +
2286 iremote.fetch_url_len + iremote.send_url_len) > datalen) {
2287 err = got_error(GOT_ERR_PRIVSEP_LEN);
2290 remote->name = strndup(imsg.data + sizeof(iremote),
2292 if (remote->name == NULL) {
2293 err = got_error_from_errno("strndup");
2296 remote->fetch_url = strndup(imsg.data + sizeof(iremote) +
2297 iremote.name_len, iremote.fetch_url_len);
2298 if (remote->fetch_url == NULL) {
2299 err = got_error_from_errno("strndup");
2300 free_remote_data(remote);
2303 remote->send_url = strndup(imsg.data + sizeof(iremote) +
2304 iremote.name_len + iremote.fetch_url_len,
2305 iremote.send_url_len);
2306 if (remote->send_url == NULL) {
2307 err = got_error_from_errno("strndup");
2308 free_remote_data(remote);
2311 remote->mirror_references = iremote.mirror_references;
2312 remote->fetch_all_branches = iremote.fetch_all_branches;
2313 remote->nfetch_branches = 0;
2314 remote->fetch_branches = NULL;
2315 remote->nsend_branches = 0;
2316 remote->send_branches = NULL;
2317 remote->nfetch_refs = 0;
2318 remote->fetch_refs = NULL;
2322 err = got_error(GOT_ERR_PRIVSEP_MSG);
2333 for (i = 0; i < *nremotes; i++)
2334 free_remote_data(&(*remotes)[i]);
2342 const struct got_error *
2343 got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd)
2345 const struct got_error *err = NULL;
2347 if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd,
2349 err = got_error_from_errno("imsg_compose "
2350 "GOTCONFIG_PARSE_REQUEST");
2355 return flush_imsg(ibuf);
2358 const struct got_error *
2359 got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf)
2361 if (imsg_compose(ibuf,
2362 GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL, 0) == -1)
2363 return got_error_from_errno("imsg_compose "
2364 "GOTCONFIG_AUTHOR_REQUEST");
2366 return flush_imsg(ibuf);
2369 const struct got_error *
2370 got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf)
2372 if (imsg_compose(ibuf,
2373 GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2374 return got_error_from_errno("imsg_compose "
2375 "GOTCONFIG_REMOTE_REQUEST");
2377 return flush_imsg(ibuf);
2380 const struct got_error *
2381 got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf)
2383 const struct got_error *err = NULL;
2386 const size_t min_datalen = 0;
2390 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2393 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2395 switch (imsg.hdr.type) {
2396 case GOT_IMSG_ERROR:
2397 if (datalen < sizeof(struct got_imsg_error)) {
2398 err = got_error(GOT_ERR_PRIVSEP_LEN);
2401 err = recv_imsg_error(&imsg, datalen);
2403 case GOT_IMSG_GOTCONFIG_STR_VAL:
2406 /* datalen does not include terminating \0 */
2407 *str = malloc(datalen + 1);
2409 err = got_error_from_errno("malloc");
2412 memcpy(*str, imsg.data, datalen);
2413 (*str)[datalen] = '\0';
2416 err = got_error(GOT_ERR_PRIVSEP_MSG);
2424 const struct got_error *
2425 got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes,
2426 int *nremotes, struct imsgbuf *ibuf)
2428 const struct got_error *err = NULL;
2431 struct got_imsg_remotes iremotes;
2432 struct got_imsg_remote iremote;
2433 const size_t min_datalen =
2434 MIN(sizeof(struct got_imsg_error), sizeof(iremotes));
2438 iremotes.nremotes = 0;
2440 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2443 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2445 switch (imsg.hdr.type) {
2446 case GOT_IMSG_ERROR:
2447 if (datalen < sizeof(struct got_imsg_error)) {
2448 err = got_error(GOT_ERR_PRIVSEP_LEN);
2451 err = recv_imsg_error(&imsg, datalen);
2453 case GOT_IMSG_GOTCONFIG_REMOTES:
2454 if (datalen != sizeof(iremotes)) {
2455 err = got_error(GOT_ERR_PRIVSEP_LEN);
2458 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2459 if (iremotes.nremotes == 0) {
2466 return got_error(GOT_ERR_PRIVSEP_MSG);
2471 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2472 if (*remotes == NULL)
2473 return got_error_from_errno("recallocarray");
2475 while (*nremotes < iremotes.nremotes) {
2476 struct got_remote_repo *remote;
2477 const size_t min_datalen =
2478 MIN(sizeof(struct got_imsg_error), sizeof(iremote));
2481 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2484 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2486 switch (imsg.hdr.type) {
2487 case GOT_IMSG_ERROR:
2488 if (datalen < sizeof(struct got_imsg_error)) {
2489 err = got_error(GOT_ERR_PRIVSEP_LEN);
2492 err = recv_imsg_error(&imsg, datalen);
2494 case GOT_IMSG_GOTCONFIG_REMOTE:
2495 remote = &(*remotes)[*nremotes];
2496 memset(remote, 0, sizeof(*remote));
2497 if (datalen < sizeof(iremote)) {
2498 err = got_error(GOT_ERR_PRIVSEP_LEN);
2501 memcpy(&iremote, imsg.data, sizeof(iremote));
2502 if (iremote.name_len == 0 ||
2503 (iremote.fetch_url_len == 0 &&
2504 iremote.send_url_len == 0) ||
2505 (sizeof(iremote) + iremote.name_len +
2506 iremote.fetch_url_len + iremote.send_url_len) >
2508 err = got_error(GOT_ERR_PRIVSEP_LEN);
2511 remote->name = strndup(imsg.data + sizeof(iremote),
2513 if (remote->name == NULL) {
2514 err = got_error_from_errno("strndup");
2517 remote->fetch_url = strndup(imsg.data +
2518 sizeof(iremote) + iremote.name_len,
2519 iremote.fetch_url_len);
2520 if (remote->fetch_url == NULL) {
2521 err = got_error_from_errno("strndup");
2522 free_remote_data(remote);
2525 remote->send_url = strndup(imsg.data +
2526 sizeof(iremote) + iremote.name_len +
2527 iremote.fetch_url_len, iremote.send_url_len);
2528 if (remote->send_url == NULL) {
2529 err = got_error_from_errno("strndup");
2530 free_remote_data(remote);
2533 remote->mirror_references = iremote.mirror_references;
2534 remote->fetch_all_branches = iremote.fetch_all_branches;
2535 if (iremote.nfetch_branches > 0) {
2536 remote->fetch_branches = recallocarray(NULL, 0,
2537 iremote.nfetch_branches, sizeof(char *));
2538 if (remote->fetch_branches == NULL) {
2539 err = got_error_from_errno("calloc");
2540 free_remote_data(remote);
2544 remote->nfetch_branches = 0;
2545 for (i = 0; i < iremote.nfetch_branches; i++) {
2547 err = got_privsep_recv_gotconfig_str(&branch,
2550 free_remote_data(remote);
2553 remote->fetch_branches[i] = branch;
2554 remote->nfetch_branches++;
2556 if (iremote.nsend_branches > 0) {
2557 remote->send_branches = recallocarray(NULL, 0,
2558 iremote.nsend_branches, sizeof(char *));
2559 if (remote->send_branches == NULL) {
2560 err = got_error_from_errno("calloc");
2561 free_remote_data(remote);
2565 remote->nsend_branches = 0;
2566 for (i = 0; i < iremote.nsend_branches; i++) {
2568 err = got_privsep_recv_gotconfig_str(&branch,
2571 free_remote_data(remote);
2574 remote->send_branches[i] = branch;
2575 remote->nsend_branches++;
2577 if (iremote.nfetch_refs > 0) {
2578 remote->fetch_refs = recallocarray(NULL, 0,
2579 iremote.nfetch_refs, sizeof(char *));
2580 if (remote->fetch_refs == NULL) {
2581 err = got_error_from_errno("calloc");
2582 free_remote_data(remote);
2586 remote->nfetch_refs = 0;
2587 for (i = 0; i < iremote.nfetch_refs; i++) {
2589 err = got_privsep_recv_gotconfig_str(&ref,
2592 free_remote_data(remote);
2595 remote->fetch_refs[i] = ref;
2596 remote->nfetch_refs++;
2601 err = got_error(GOT_ERR_PRIVSEP_MSG);
2612 for (i = 0; i < *nremotes; i++)
2613 free_remote_data(&(*remotes)[i]);
2621 const struct got_error *
2622 got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf,
2623 struct got_object_id *id, int idx, const char *path)
2625 const struct got_error *err = NULL;
2627 size_t path_len = strlen(path) + 1;
2629 wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0,
2630 sizeof(struct got_imsg_commit_traversal_request) + path_len);
2632 return got_error_from_errno(
2633 "imsg_create COMMIT_TRAVERSAL_REQUEST");
2634 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
2635 err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST");
2639 if (imsg_add(wbuf, &idx, sizeof(idx)) == -1) {
2640 err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST");
2644 if (imsg_add(wbuf, path, path_len) == -1) {
2645 err = got_error_from_errno("imsg_add COMMIT_TRAVERSAL_REQUEST");
2651 imsg_close(ibuf, wbuf);
2653 return flush_imsg(ibuf);
2656 const struct got_error *
2657 got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit,
2658 struct got_object_id **changed_commit_id,
2659 struct got_object_id_queue *commit_ids, struct imsgbuf *ibuf)
2661 const struct got_error *err = NULL;
2663 struct got_imsg_traversed_commits *icommits;
2667 *changed_commit = NULL;
2668 *changed_commit_id = NULL;
2671 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2675 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2676 switch (imsg.hdr.type) {
2677 case GOT_IMSG_TRAVERSED_COMMITS:
2678 icommits = imsg.data;
2679 if (datalen != sizeof(*icommits) +
2680 icommits->ncommits * SHA1_DIGEST_LENGTH) {
2681 err = got_error(GOT_ERR_PRIVSEP_LEN);
2684 for (i = 0; i < icommits->ncommits; i++) {
2685 struct got_object_qid *qid;
2686 uint8_t *sha1 = (uint8_t *)imsg.data +
2687 sizeof(*icommits) + i * SHA1_DIGEST_LENGTH;
2688 err = got_object_qid_alloc_partial(&qid);
2691 memcpy(qid->id.sha1, sha1, SHA1_DIGEST_LENGTH);
2692 STAILQ_INSERT_TAIL(commit_ids, qid, entry);
2694 /* The last commit may contain a change. */
2695 if (i == icommits->ncommits - 1) {
2696 *changed_commit_id =
2697 got_object_id_dup(&qid->id);
2698 if (*changed_commit_id == NULL) {
2699 err = got_error_from_errno(
2700 "got_object_id_dup");
2706 case GOT_IMSG_COMMIT:
2707 if (*changed_commit_id == NULL) {
2708 err = got_error(GOT_ERR_PRIVSEP_MSG);
2711 err = get_commit_from_imsg(changed_commit, &imsg,
2714 case GOT_IMSG_COMMIT_TRAVERSAL_DONE:
2718 err = got_error(GOT_ERR_PRIVSEP_MSG);
2728 got_object_id_queue_free(commit_ids);
2732 const struct got_error *
2733 got_privsep_send_raw_delta_req(struct imsgbuf *ibuf, int idx,
2734 struct got_object_id *id)
2736 struct got_imsg_raw_delta_request dreq;
2739 memcpy(dreq.id, id->sha1, SHA1_DIGEST_LENGTH);
2741 if (imsg_compose(ibuf, GOT_IMSG_RAW_DELTA_REQUEST, 0, 0, -1,
2742 &dreq, sizeof(dreq)) == -1)
2743 return got_error_from_errno("imsg_compose RAW_DELTA_REQUEST");
2745 return flush_imsg(ibuf);
2748 const struct got_error *
2749 got_privsep_send_raw_delta_outfd(struct imsgbuf *ibuf, int fd)
2751 return send_fd(ibuf, GOT_IMSG_RAW_DELTA_OUTFD, fd);
2754 const struct got_error *
2755 got_privsep_send_raw_delta(struct imsgbuf *ibuf, uint64_t base_size,
2756 uint64_t result_size, off_t delta_size, off_t delta_compressed_size,
2757 off_t delta_offset, off_t delta_out_offset, struct got_object_id *base_id)
2759 struct got_imsg_raw_delta idelta;
2762 idelta.base_size = base_size;
2763 idelta.result_size = result_size;
2764 idelta.delta_size = delta_size;
2765 idelta.delta_compressed_size = delta_compressed_size;
2766 idelta.delta_offset = delta_offset;
2767 idelta.delta_out_offset = delta_out_offset;
2768 memcpy(idelta.base_id, base_id->sha1, SHA1_DIGEST_LENGTH);
2770 ret = imsg_compose(ibuf, GOT_IMSG_RAW_DELTA, 0, 0, -1,
2771 &idelta, sizeof(idelta));
2773 return got_error_from_errno("imsg_compose RAW_DELTA");
2775 return flush_imsg(ibuf);
2778 const struct got_error *
2779 got_privsep_recv_raw_delta(uint64_t *base_size, uint64_t *result_size,
2780 off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
2781 off_t *delta_out_offset, struct got_object_id **base_id, struct imsgbuf *ibuf)
2783 const struct got_error *err = NULL;
2785 struct got_imsg_raw_delta *delta;
2791 *delta_compressed_size = 0;
2793 *delta_out_offset = 0;
2796 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2800 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2802 switch (imsg.hdr.type) {
2803 case GOT_IMSG_RAW_DELTA:
2804 if (datalen != sizeof(*delta)) {
2805 err = got_error(GOT_ERR_PRIVSEP_LEN);
2809 *base_size = delta->base_size;
2810 *result_size = delta->result_size;
2811 *delta_size = delta->delta_size;
2812 *delta_compressed_size = delta->delta_compressed_size;
2813 *delta_offset = delta->delta_offset;
2814 *delta_out_offset = delta->delta_out_offset;
2815 *base_id = calloc(1, sizeof(**base_id));
2816 if (*base_id == NULL) {
2817 err = got_error_from_errno("malloc");
2820 memcpy((*base_id)->sha1, delta->base_id, SHA1_DIGEST_LENGTH);
2823 err = got_error(GOT_ERR_PRIVSEP_MSG);
2836 const struct got_error *
2837 got_privsep_unveil_exec_helpers(void)
2839 const char *helpers[] = {
2840 GOT_PATH_PROG_READ_PACK,
2841 GOT_PATH_PROG_READ_OBJECT,
2842 GOT_PATH_PROG_READ_COMMIT,
2843 GOT_PATH_PROG_READ_TREE,
2844 GOT_PATH_PROG_READ_BLOB,
2845 GOT_PATH_PROG_READ_TAG,
2846 GOT_PATH_PROG_READ_GITCONFIG,
2847 GOT_PATH_PROG_READ_GOTCONFIG,
2848 GOT_PATH_PROG_READ_PATCH,
2849 GOT_PATH_PROG_FETCH_PACK,
2850 GOT_PATH_PROG_INDEX_PACK,
2851 GOT_PATH_PROG_SEND_PACK,
2855 for (i = 0; i < nitems(helpers); i++) {
2856 if (unveil(helpers[i], "x") == 0)
2858 return got_error_from_errno2("unveil", helpers[i]);
2865 got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
2867 if (close(imsg_fds[0]) == -1) {
2868 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
2872 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
2873 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
2877 closefrom(GOT_IMSG_FD_CHILD + 1);
2879 if (execl(path, path, repo_path, (char *)NULL) == -1) {
2880 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,