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>
36 #include "got_compat.h"
38 #include "got_object.h"
39 #include "got_error.h"
41 #include "got_repository.h"
43 #include "got_lib_hash.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_object_qid.h"
49 #include "got_lib_privsep.h"
50 #include "got_lib_pack.h"
51 #include "got_lib_poll.h"
53 #include "got_privsep.h"
56 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
60 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
63 static const struct got_error *
64 read_imsg(struct imsgbuf *ibuf)
66 const struct got_error *err;
69 err = got_poll_fd(ibuf->fd, POLLIN, INFTIM);
71 if (err->code == GOT_ERR_EOF)
72 return got_error(GOT_ERR_PRIVSEP_PIPE);
78 if (errno == EAGAIN) /* Could be a file-descriptor leak. */
79 return got_error(GOT_ERR_PRIVSEP_NO_FD);
80 return got_error(GOT_ERR_PRIVSEP_READ);
83 return got_error(GOT_ERR_PRIVSEP_PIPE);
88 const struct got_error *
89 got_privsep_wait_for_child(pid_t pid)
93 if (waitpid(pid, &child_status, 0) == -1)
94 return got_error_from_errno("waitpid");
96 if (!WIFEXITED(child_status))
97 return got_error(GOT_ERR_PRIVSEP_DIED);
99 if (WEXITSTATUS(child_status) != 0)
100 return got_error(GOT_ERR_PRIVSEP_EXIT);
105 static const struct got_error *
106 recv_imsg_error(struct imsg *imsg, size_t datalen)
108 struct got_imsg_error *ierr;
110 if (datalen != sizeof(*ierr))
111 return got_error(GOT_ERR_PRIVSEP_LEN);
114 if (ierr->code == GOT_ERR_ERRNO) {
115 static struct got_error serr;
116 serr.code = GOT_ERR_ERRNO;
117 serr.msg = strerror(ierr->errno_code);
121 return got_error(ierr->code);
124 const struct got_error *
125 got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
128 const struct got_error *err;
131 n = imsg_get(ibuf, imsg);
133 return got_error_from_errno("imsg_get");
136 err = read_imsg(ibuf);
139 n = imsg_get(ibuf, imsg);
141 return got_error_from_errno("imsg_get");
144 if (imsg->hdr.type == GOT_IMSG_ERROR) {
145 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
146 err = recv_imsg_error(imsg, datalen);
151 if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen) {
153 return got_error(GOT_ERR_PRIVSEP_LEN);
159 /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
161 got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
163 const struct got_error *poll_err;
164 struct got_imsg_error ierr;
167 ierr.code = err->code;
168 if (err->code == GOT_ERR_ERRNO)
169 ierr.errno_code = errno;
172 ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
174 fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
175 getprogname(), err->code, err->msg, strerror(errno));
179 poll_err = got_poll_fd(ibuf->fd, POLLOUT, INFTIM);
181 fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
182 getprogname(), err->code, err->msg, poll_err->msg);
186 ret = imsg_flush(ibuf);
188 fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
189 getprogname(), err->code, err->msg, strerror(errno));
195 static const struct got_error *
196 flush_imsg(struct imsgbuf *ibuf)
198 const struct got_error *err;
200 err = got_poll_fd(ibuf->fd, POLLOUT, INFTIM);
204 if (imsg_flush(ibuf) == -1) {
206 return got_error_from_errno("imsg_flush");
212 const struct got_error *
213 got_privsep_flush_imsg(struct imsgbuf *ibuf)
215 return flush_imsg(ibuf);
218 const struct got_error *
219 got_privsep_send_stop(int fd)
223 imsg_init(&ibuf, fd);
225 if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
226 return got_error_from_errno("imsg_compose STOP");
228 return flush_imsg(&ibuf);
231 const struct got_error *
232 got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd,
233 struct got_object_id *id)
235 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd,
236 id, sizeof(*id)) == -1)
237 return got_error_from_errno("imsg_compose OBJECT_REQUEST");
239 return flush_imsg(ibuf);
242 const struct got_error *
243 got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd,
244 struct got_object_id *id)
246 const struct got_error *err;
248 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd,
249 id, sizeof(*id)) == -1) {
250 err = got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST");
255 return flush_imsg(ibuf);
258 const struct got_error *
259 got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd)
261 const struct got_error *err = NULL;
263 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL, 0)
265 err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD");
270 return flush_imsg(ibuf);
273 const struct got_error *
274 got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen,
277 struct got_imsg_raw_obj iobj;
278 size_t len = sizeof(iobj);
281 memset(&iobj, 0, sizeof(iobj));
282 iobj.hdrlen = hdrlen;
285 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX)
286 len += (size_t)size + hdrlen;
288 wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len);
290 return got_error_from_errno("imsg_create RAW_OBJECT");
292 if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1)
293 return got_error_from_errno("imsg_add RAW_OBJECT");
295 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
296 if (imsg_add(wbuf, data, size + hdrlen) == -1)
297 return got_error_from_errno("imsg_add RAW_OBJECT");
300 imsg_close(ibuf, wbuf);
301 return flush_imsg(ibuf);
304 const struct got_error *
305 got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen,
306 struct imsgbuf *ibuf)
308 const struct got_error *err = NULL;
310 struct got_imsg_raw_obj *iobj;
315 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
319 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
321 switch (imsg.hdr.type) {
322 case GOT_IMSG_RAW_OBJECT:
323 if (datalen < sizeof(*iobj)) {
324 err = got_error(GOT_ERR_PRIVSEP_LEN);
329 *hdrlen = iobj->hdrlen;
331 if (datalen == sizeof(*iobj)) {
332 /* Data has been written to file descriptor. */
337 *size + *hdrlen > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
338 err = got_error(GOT_ERR_PRIVSEP_LEN);
342 *outbuf = malloc(*size + *hdrlen);
343 if (*outbuf == NULL) {
344 err = got_error_from_errno("malloc");
347 memcpy(*outbuf, imsg.data + sizeof(*iobj), *size + *hdrlen);
350 err = got_error(GOT_ERR_PRIVSEP_MSG);
359 const struct got_error *
360 got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
361 struct got_object_id *id, int pack_idx)
363 const struct got_error *err = NULL;
364 struct got_imsg_packed_object iobj;
368 memset(&iobj, 0, sizeof(iobj));
369 if (pack_idx != -1) { /* commit is packed */
371 memcpy(&iobj.id, id, sizeof(iobj.id));
379 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, data, len)
381 err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
386 return flush_imsg(ibuf);
389 const struct got_error *
390 got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
391 struct got_object_id *id, int pack_idx)
393 const struct got_error *err;
398 len = sizeof(struct got_imsg_packed_object);
402 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
404 err = got_error_from_errno("imsg_create TREE_REQUEST");
410 if (imsg_add(wbuf, id, sizeof(*id)) == -1) {
411 err = got_error_from_errno("imsg_add TREE_REQUEST");
417 if (pack_idx != -1) { /* tree is packed */
418 if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) {
419 err = got_error_from_errno("imsg_add TREE_REQUEST");
426 ibuf_fd_set(wbuf, fd);
427 imsg_close(ibuf, wbuf);
429 return flush_imsg(ibuf);
432 const struct got_error *
433 got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
434 struct got_object_id *id, int pack_idx)
436 const struct got_error *err;
437 struct got_imsg_packed_object iobj;
441 memset(&iobj, 0, sizeof(iobj));
442 if (pack_idx != -1) { /* tag is packed */
444 memcpy(&iobj.id, id, sizeof(iobj.id));
452 if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, data, len)
454 err = got_error_from_errno("imsg_compose TAG_REQUEST");
460 return flush_imsg(ibuf);
463 const struct got_error *
464 got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
465 struct got_object_id *id, int pack_idx)
467 const struct got_error *err = NULL;
468 struct got_imsg_packed_object iobj;
472 memset(&iobj, 0, sizeof(iobj));
473 if (pack_idx != -1) { /* blob is packed */
475 memcpy(&iobj.id, id, sizeof(iobj.id));
483 if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, data, len)
485 err = got_error_from_errno("imsg_compose BLOB_REQUEST");
490 return flush_imsg(ibuf);
493 const struct got_error *
494 got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
496 const struct got_error *err = NULL;
498 if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
500 err = got_error_from_errno("imsg_compose BLOB_OUTFD");
505 return flush_imsg(ibuf);
508 static const struct got_error *
509 send_fd(struct imsgbuf *ibuf, int imsg_code, int fd)
511 const struct got_error *err = NULL;
513 if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL, 0) == -1) {
514 err = got_error_from_errno("imsg_compose TMPFD");
519 return flush_imsg(ibuf);
522 const struct got_error *
523 got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
525 return send_fd(ibuf, GOT_IMSG_TMPFD, fd);
528 const struct got_error *
529 got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
531 struct got_imsg_object iobj;
533 memset(&iobj, 0, sizeof(iobj));
535 memcpy(&iobj.id, &obj->id, sizeof(iobj.id));
536 iobj.type = obj->type;
537 iobj.flags = obj->flags;
538 iobj.hdrlen = obj->hdrlen;
539 iobj.size = obj->size;
540 if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
541 iobj.pack_offset = obj->pack_offset;
542 iobj.pack_idx = obj->pack_idx;
545 if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
547 return got_error_from_errno("imsg_compose OBJECT");
549 return flush_imsg(ibuf);
552 const struct got_error *
553 got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd,
554 struct got_pathlist_head *have_refs, int fetch_all_branches,
555 struct got_pathlist_head *wanted_branches,
556 struct got_pathlist_head *wanted_refs, int list_refs_only,
557 const char *worktree_branch, const char *remote_head,
558 int no_head, int verbosity)
560 const struct got_error *err = NULL;
562 struct got_pathlist_entry *pe;
563 struct got_imsg_fetch_request fetchreq;
564 size_t remote_head_len, worktree_branch_len, len = sizeof(fetchreq);
566 if (worktree_branch) {
567 worktree_branch_len = strlen(worktree_branch);
568 len += worktree_branch_len;
571 remote_head_len = strlen(remote_head);
572 len += remote_head_len;
575 if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
577 return got_error(GOT_ERR_NO_SPACE);
580 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, len);
582 err = got_error_from_errno("imsg_create FETCH_HAVE_REF");
587 memset(&fetchreq, 0, sizeof(fetchreq));
588 fetchreq.no_head = no_head;
589 fetchreq.fetch_all_branches = fetch_all_branches;
590 fetchreq.list_refs_only = list_refs_only;
591 fetchreq.verbosity = verbosity;
592 if (worktree_branch != NULL)
593 fetchreq.worktree_branch_len = worktree_branch_len;
594 if (remote_head != NULL)
595 fetchreq.remote_head_len = remote_head_len;
596 TAILQ_FOREACH(pe, have_refs, entry)
597 fetchreq.n_have_refs++;
598 TAILQ_FOREACH(pe, wanted_branches, entry)
599 fetchreq.n_wanted_branches++;
600 TAILQ_FOREACH(pe, wanted_refs, entry)
601 fetchreq.n_wanted_refs++;
602 if (imsg_add(wbuf, &fetchreq, sizeof(fetchreq)) == -1)
603 return got_error_from_errno("imsg_add FETCH_REQUEST");
604 if (worktree_branch) {
605 if (imsg_add(wbuf, worktree_branch, worktree_branch_len)
607 err = got_error_from_errno("imsg_add FETCH_REQUEST");
613 if (imsg_add(wbuf, remote_head, remote_head_len) == -1) {
614 err = got_error_from_errno("imsg_add FETCH_REQUEST");
619 ibuf_fd_set(wbuf, fd);
621 imsg_close(ibuf, wbuf);
623 err = flush_imsg(ibuf);
627 TAILQ_FOREACH(pe, have_refs, entry) {
628 const char *name = pe->path;
629 size_t name_len = pe->path_len;
630 struct got_object_id *id = pe->data;
632 len = sizeof(struct got_imsg_fetch_have_ref) + name_len;
633 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len);
635 return got_error_from_errno("imsg_create FETCH_HAVE_REF");
637 /* Keep in sync with struct got_imsg_fetch_have_ref! */
638 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
639 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
640 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
641 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
642 if (imsg_add(wbuf, name, name_len) == -1)
643 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
645 imsg_close(ibuf, wbuf);
646 err = flush_imsg(ibuf);
651 TAILQ_FOREACH(pe, wanted_branches, entry) {
652 const char *name = pe->path;
653 size_t name_len = pe->path_len;
655 len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len;
656 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0,
659 return got_error_from_errno(
660 "imsg_create FETCH_WANTED_BRANCH");
662 /* Keep in sync with struct got_imsg_fetch_wanted_branch! */
663 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
664 return got_error_from_errno(
665 "imsg_add FETCH_WANTED_BRANCH");
666 if (imsg_add(wbuf, name, name_len) == -1)
667 return got_error_from_errno(
668 "imsg_add FETCH_WANTED_BRANCH");
670 imsg_close(ibuf, wbuf);
671 err = flush_imsg(ibuf);
676 TAILQ_FOREACH(pe, wanted_refs, entry) {
677 const char *name = pe->path;
678 size_t name_len = pe->path_len;
680 len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len;
681 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0,
684 return got_error_from_errno(
685 "imsg_create FETCH_WANTED_REF");
687 /* Keep in sync with struct got_imsg_fetch_wanted_ref! */
688 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
689 return got_error_from_errno(
690 "imsg_add FETCH_WANTED_REF");
691 if (imsg_add(wbuf, name, name_len) == -1)
692 return got_error_from_errno(
693 "imsg_add FETCH_WANTED_REF");
695 imsg_close(ibuf, wbuf);
696 err = flush_imsg(ibuf);
704 const struct got_error *
705 got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd)
707 return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd);
710 const struct got_error *
711 got_privsep_recv_fetch_progress(int *done, struct got_object_id **id,
712 char **refname, struct got_pathlist_head *symrefs, char **server_progress,
713 off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf)
715 const struct got_error *err = NULL;
718 struct got_imsg_fetch_symrefs *isymrefs = NULL;
726 *server_progress = NULL;
728 memset(pack_sha1, 0, SHA1_DIGEST_LENGTH);
730 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
734 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
735 switch (imsg.hdr.type) {
736 case GOT_IMSG_FETCH_SYMREFS:
737 if (datalen < sizeof(*isymrefs)) {
738 err = got_error(GOT_ERR_PRIVSEP_LEN);
741 if (isymrefs != NULL) {
742 err = got_error(GOT_ERR_PRIVSEP_MSG);
745 isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data;
746 off = sizeof(*isymrefs);
747 remain = datalen - off;
748 for (n = 0; n < isymrefs->nsymrefs; n++) {
749 struct got_imsg_fetch_symref *s;
751 if (remain < sizeof(struct got_imsg_fetch_symref)) {
752 err = got_error(GOT_ERR_PRIVSEP_LEN);
755 s = (struct got_imsg_fetch_symref *)(imsg.data + off);
757 remain -= sizeof(*s);
758 if (remain < s->name_len) {
759 err = got_error(GOT_ERR_PRIVSEP_LEN);
762 name = strndup(imsg.data + off, s->name_len);
764 err = got_error_from_errno("strndup");
768 remain -= s->name_len;
769 if (remain < s->target_len) {
770 err = got_error(GOT_ERR_PRIVSEP_LEN);
774 target = strndup(imsg.data + off, s->target_len);
775 if (target == NULL) {
776 err = got_error_from_errno("strndup");
780 off += s->target_len;
781 remain -= s->target_len;
782 err = got_pathlist_append(symrefs, name, target);
790 case GOT_IMSG_FETCH_REF:
791 if (datalen <= sizeof(**id)) {
792 err = got_error(GOT_ERR_PRIVSEP_MSG);
795 *id = malloc(sizeof(**id));
797 err = got_error_from_errno("malloc");
800 memcpy(*id, imsg.data, sizeof(**id));
801 *refname = strndup(imsg.data + sizeof(**id),
802 datalen - sizeof(**id));
803 if (*refname == NULL) {
804 err = got_error_from_errno("strndup");
808 case GOT_IMSG_FETCH_SERVER_PROGRESS:
810 err = got_error(GOT_ERR_PRIVSEP_LEN);
813 *server_progress = strndup(imsg.data, datalen);
814 if (*server_progress == NULL) {
815 err = got_error_from_errno("strndup");
818 for (i = 0; i < datalen; i++) {
819 if (!isprint((unsigned char)(*server_progress)[i]) &&
820 !isspace((unsigned char)(*server_progress)[i])) {
821 err = got_error(GOT_ERR_PRIVSEP_MSG);
822 free(*server_progress);
823 *server_progress = NULL;
828 case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS:
829 if (datalen < sizeof(*packfile_size)) {
830 err = got_error(GOT_ERR_PRIVSEP_MSG);
833 memcpy(packfile_size, imsg.data, sizeof(*packfile_size));
835 case GOT_IMSG_FETCH_DONE:
836 if (datalen != SHA1_DIGEST_LENGTH) {
837 err = got_error(GOT_ERR_PRIVSEP_MSG);
840 memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH);
844 err = got_error(GOT_ERR_PRIVSEP_MSG);
858 static const struct got_error *
859 send_send_ref(const char *name, size_t name_len, struct got_object_id *id,
860 int delete, struct imsgbuf *ibuf)
865 len = sizeof(struct got_imsg_send_ref) + name_len;
866 wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF, 0, 0, len);
868 return got_error_from_errno("imsg_create SEND_REF");
870 /* Keep in sync with struct got_imsg_send_ref! */
871 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
872 return got_error_from_errno("imsg_add SEND_REF");
873 if (imsg_add(wbuf, &delete, sizeof(delete)) == -1)
874 return got_error_from_errno("imsg_add SEND_REF");
875 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
876 return got_error_from_errno("imsg_add SEND_REF");
877 if (imsg_add(wbuf, name, name_len) == -1)
878 return got_error_from_errno("imsg_add SEND_REF");
880 imsg_close(ibuf, wbuf);
881 return flush_imsg(ibuf);
884 const struct got_error *
885 got_privsep_send_send_req(struct imsgbuf *ibuf, int fd,
886 struct got_pathlist_head *have_refs,
887 struct got_pathlist_head *delete_refs,
890 const struct got_error *err = NULL;
891 struct got_pathlist_entry *pe;
892 struct got_imsg_send_request sendreq;
893 struct got_object_id zero_id;
895 memset(&zero_id, 0, sizeof(zero_id));
896 memset(&sendreq, 0, sizeof(sendreq));
897 sendreq.verbosity = verbosity;
898 TAILQ_FOREACH(pe, have_refs, entry)
900 TAILQ_FOREACH(pe, delete_refs, entry)
902 if (imsg_compose(ibuf, GOT_IMSG_SEND_REQUEST, 0, 0, fd,
903 &sendreq, sizeof(sendreq)) == -1) {
904 err = got_error_from_errno(
905 "imsg_compose FETCH_SERVER_PROGRESS");
910 err = flush_imsg(ibuf);
914 TAILQ_FOREACH(pe, have_refs, entry) {
915 const char *name = pe->path;
916 size_t name_len = pe->path_len;
917 struct got_object_id *id = pe->data;
918 err = send_send_ref(name, name_len, id, 0, ibuf);
923 TAILQ_FOREACH(pe, delete_refs, entry) {
924 const char *name = pe->path;
925 size_t name_len = pe->path_len;
926 err = send_send_ref(name, name_len, &zero_id, 1, ibuf);
931 if (fd != -1 && close(fd) == -1 && err == NULL)
932 err = got_error_from_errno("close");
936 const struct got_error *
937 got_privsep_recv_send_remote_refs(struct got_pathlist_head *remote_refs,
938 struct imsgbuf *ibuf)
940 const struct got_error *err = NULL;
944 struct got_imsg_send_remote_ref iremote_ref;
945 struct got_object_id *id = NULL;
946 char *refname = NULL;
947 struct got_pathlist_entry *new;
950 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
953 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
954 switch (imsg.hdr.type) {
955 case GOT_IMSG_SEND_REMOTE_REF:
956 if (datalen < sizeof(iremote_ref)) {
957 err = got_error(GOT_ERR_PRIVSEP_MSG);
960 memcpy(&iremote_ref, imsg.data, sizeof(iremote_ref));
961 if (datalen != sizeof(iremote_ref) +
962 iremote_ref.name_len) {
963 err = got_error(GOT_ERR_PRIVSEP_MSG);
966 id = malloc(sizeof(*id));
968 err = got_error_from_errno("malloc");
971 memcpy(id, &iremote_ref.id, sizeof(*id));
972 refname = strndup(imsg.data + sizeof(iremote_ref),
973 datalen - sizeof(iremote_ref));
974 if (refname == NULL) {
975 err = got_error_from_errno("strndup");
978 err = got_pathlist_insert(&new, remote_refs,
982 if (new == NULL) { /* duplicate which wasn't inserted */
989 case GOT_IMSG_SEND_PACK_REQUEST:
991 err = got_error(GOT_ERR_PRIVSEP_MSG);
994 /* got-send-pack is now waiting for a pack file. */
998 err = got_error(GOT_ERR_PRIVSEP_MSG);
1009 const struct got_error *
1010 got_privsep_send_packfd(struct imsgbuf *ibuf, int fd)
1012 return send_fd(ibuf, GOT_IMSG_SEND_PACKFD, fd);
1015 const struct got_error *
1016 got_privsep_recv_send_progress(int *done, off_t *bytes_sent,
1017 int *success, char **refname, char **errmsg, struct imsgbuf *ibuf)
1019 const struct got_error *err = NULL;
1022 struct got_imsg_send_ref_status iref_status;
1024 /* Do not reset the current value of 'bytes_sent', it accumulates. */
1030 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1034 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1035 switch (imsg.hdr.type) {
1036 case GOT_IMSG_SEND_UPLOAD_PROGRESS:
1037 if (datalen < sizeof(*bytes_sent)) {
1038 err = got_error(GOT_ERR_PRIVSEP_MSG);
1041 memcpy(bytes_sent, imsg.data, sizeof(*bytes_sent));
1043 case GOT_IMSG_SEND_REF_STATUS:
1044 if (datalen < sizeof(iref_status)) {
1045 err = got_error(GOT_ERR_PRIVSEP_MSG);
1048 memcpy(&iref_status, imsg.data, sizeof(iref_status));
1049 if (datalen != sizeof(iref_status) + iref_status.name_len +
1050 iref_status.errmsg_len) {
1051 err = got_error(GOT_ERR_PRIVSEP_MSG);
1054 *success = iref_status.success;
1055 *refname = strndup(imsg.data + sizeof(iref_status),
1056 iref_status.name_len);
1058 if (iref_status.errmsg_len != 0)
1059 *errmsg = strndup(imsg.data + sizeof(iref_status) +
1060 iref_status.name_len, iref_status.errmsg_len);
1062 case GOT_IMSG_SEND_DONE:
1064 err = got_error(GOT_ERR_PRIVSEP_MSG);
1070 err = got_error(GOT_ERR_PRIVSEP_MSG);
1078 const struct got_error *
1079 got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1,
1082 const struct got_error *err = NULL;
1084 /* Keep in sync with struct got_imsg_index_pack_request */
1085 if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd,
1086 pack_sha1, SHA1_DIGEST_LENGTH) == -1) {
1087 err = got_error_from_errno("imsg_compose INDEX_REQUEST");
1091 return flush_imsg(ibuf);
1094 const struct got_error *
1095 got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd)
1097 return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd);
1100 const struct got_error *
1101 got_privsep_recv_index_progress(int *done, int *nobj_total,
1102 int *nobj_indexed, int *nobj_loose, int *nobj_resolved,
1103 struct imsgbuf *ibuf)
1105 const struct got_error *err = NULL;
1107 struct got_imsg_index_pack_progress *iprogress;
1115 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1119 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1120 switch (imsg.hdr.type) {
1121 case GOT_IMSG_IDXPACK_PROGRESS:
1122 if (datalen < sizeof(*iprogress)) {
1123 err = got_error(GOT_ERR_PRIVSEP_LEN);
1126 iprogress = (struct got_imsg_index_pack_progress *)imsg.data;
1127 if (iprogress->nobj_total < 0 || iprogress->nobj_indexed < 0 ||
1128 iprogress->nobj_loose < 0 || iprogress->nobj_resolved < 0) {
1129 err = got_error(GOT_ERR_RANGE);
1132 *nobj_total = iprogress->nobj_total;
1133 *nobj_indexed = iprogress->nobj_indexed;
1134 *nobj_loose = iprogress->nobj_loose;
1135 *nobj_resolved = iprogress->nobj_resolved;
1137 case GOT_IMSG_IDXPACK_DONE:
1139 err = got_error(GOT_ERR_PRIVSEP_LEN);
1145 err = got_error(GOT_ERR_PRIVSEP_MSG);
1153 const struct got_error *
1154 got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
1155 struct imsgbuf *ibuf)
1157 struct got_imsg_object *iobj;
1158 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1160 if (datalen != sizeof(*iobj))
1161 return got_error(GOT_ERR_PRIVSEP_LEN);
1164 if (iobj->pack_offset < 0)
1165 return got_error(GOT_ERR_PACK_OFFSET);
1167 *obj = calloc(1, sizeof(**obj));
1169 return got_error_from_errno("calloc");
1171 memcpy(&(*obj)->id, &iobj->id, sizeof(iobj->id));
1172 (*obj)->type = iobj->type;
1173 (*obj)->flags = iobj->flags;
1174 (*obj)->hdrlen = iobj->hdrlen;
1175 (*obj)->size = iobj->size;
1176 /* path_packfile is handled by caller */
1177 if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
1178 (*obj)->pack_offset = iobj->pack_offset;
1179 (*obj)->pack_idx = iobj->pack_idx;
1181 STAILQ_INIT(&(*obj)->deltas.entries);
1185 const struct got_error *
1186 got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
1188 const struct got_error *err = NULL;
1190 const size_t min_datalen = sizeof(struct got_imsg_object);
1194 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1198 switch (imsg.hdr.type) {
1199 case GOT_IMSG_OBJECT:
1200 err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
1203 err = got_error(GOT_ERR_PRIVSEP_MSG);
1212 static const struct got_error *
1213 send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
1216 const struct got_error *err = NULL;
1217 size_t offset, remain;
1220 remain = logmsg_len;
1221 while (remain > 0) {
1222 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1224 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
1225 commit->logmsg + offset, n) == -1) {
1226 err = got_error_from_errno("imsg_compose "
1231 err = flush_imsg(ibuf);
1242 const struct got_error *
1243 got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
1245 const struct got_error *err = NULL;
1246 struct got_imsg_commit_object *icommit;
1249 struct got_object_qid *qid;
1250 size_t author_len = strlen(commit->author);
1251 size_t committer_len = strlen(commit->committer);
1252 size_t logmsg_len = strlen(commit->logmsg);
1254 total = sizeof(*icommit) + author_len + committer_len +
1255 commit->nparents * sizeof(struct got_object_id);
1257 buf = malloc(total);
1259 return got_error_from_errno("malloc");
1261 icommit = (struct got_imsg_commit_object *)buf;
1262 memcpy(&icommit->tree_id, commit->tree_id, sizeof(icommit->tree_id));
1263 icommit->author_len = author_len;
1264 icommit->author_time = commit->author_time;
1265 icommit->author_gmtoff = commit->author_gmtoff;
1266 icommit->committer_len = committer_len;
1267 icommit->committer_time = commit->committer_time;
1268 icommit->committer_gmtoff = commit->committer_gmtoff;
1269 icommit->logmsg_len = logmsg_len;
1270 icommit->nparents = commit->nparents;
1272 len = sizeof(*icommit);
1273 memcpy(buf + len, commit->author, author_len);
1275 memcpy(buf + len, commit->committer, committer_len);
1276 len += committer_len;
1277 STAILQ_FOREACH(qid, &commit->parent_ids, entry) {
1278 memcpy(buf + len, &qid->id, sizeof(qid->id));
1279 len += sizeof(qid->id);
1282 if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
1283 err = got_error_from_errno("imsg_compose COMMIT");
1287 if (logmsg_len == 0 ||
1288 logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1289 err = flush_imsg(ibuf);
1293 err = send_commit_logmsg(ibuf, commit, logmsg_len);
1299 static const struct got_error *
1300 get_commit_from_imsg(struct got_commit_object **commit,
1301 struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf)
1303 const struct got_error *err = NULL;
1304 struct got_imsg_commit_object *icommit;
1308 if (datalen < sizeof(*icommit))
1309 return got_error(GOT_ERR_PRIVSEP_LEN);
1311 icommit = imsg->data;
1312 if (datalen != sizeof(*icommit) + icommit->author_len +
1313 icommit->committer_len +
1314 icommit->nparents * sizeof(struct got_object_id))
1315 return got_error(GOT_ERR_PRIVSEP_LEN);
1317 if (icommit->nparents < 0)
1318 return got_error(GOT_ERR_PRIVSEP_LEN);
1320 len += sizeof(*icommit);
1322 *commit = got_object_commit_alloc_partial();
1323 if (*commit == NULL)
1324 return got_error_from_errno(
1325 "got_object_commit_alloc_partial");
1327 memcpy((*commit)->tree_id, &icommit->tree_id,
1328 sizeof(icommit->tree_id));
1329 (*commit)->author_time = icommit->author_time;
1330 (*commit)->author_gmtoff = icommit->author_gmtoff;
1331 (*commit)->committer_time = icommit->committer_time;
1332 (*commit)->committer_gmtoff = icommit->committer_gmtoff;
1334 (*commit)->author = strndup(imsg->data + len, icommit->author_len);
1335 if ((*commit)->author == NULL) {
1336 err = got_error_from_errno("strndup");
1339 len += icommit->author_len;
1341 (*commit)->committer = strndup(imsg->data + len,
1342 icommit->committer_len);
1343 if ((*commit)->committer == NULL) {
1344 err = got_error_from_errno("strndup");
1347 len += icommit->committer_len;
1349 if (icommit->logmsg_len == 0) {
1350 (*commit)->logmsg = strdup("");
1351 if ((*commit)->logmsg == NULL) {
1352 err = got_error_from_errno("strdup");
1356 size_t offset = 0, remain = icommit->logmsg_len;
1358 (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
1359 if ((*commit)->logmsg == NULL) {
1360 err = got_error_from_errno("malloc");
1363 while (remain > 0) {
1364 struct imsg imsg_log;
1365 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1368 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1372 if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) {
1373 err = got_error(GOT_ERR_PRIVSEP_MSG);
1377 memcpy((*commit)->logmsg + offset,
1379 imsg_free(&imsg_log);
1383 (*commit)->logmsg[icommit->logmsg_len] = '\0';
1386 for (i = 0; i < icommit->nparents; i++) {
1387 struct got_object_qid *qid;
1389 err = got_object_qid_alloc_partial(&qid);
1392 memcpy(&qid->id, imsg->data + len +
1393 i * sizeof(qid->id), sizeof(qid->id));
1394 STAILQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
1395 (*commit)->nparents++;
1399 got_object_commit_close(*commit);
1405 const struct got_error *
1406 got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
1408 const struct got_error *err = NULL;
1411 const size_t min_datalen = sizeof(struct got_imsg_commit_object);
1415 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1419 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1421 switch (imsg.hdr.type) {
1422 case GOT_IMSG_COMMIT:
1423 err = get_commit_from_imsg(commit, &imsg, datalen, ibuf);
1426 err = got_error(GOT_ERR_PRIVSEP_MSG);
1435 static const struct got_error *
1436 send_tree_entries_batch(struct imsgbuf *ibuf,
1437 struct got_parsed_tree_entry *entries, int idx0, int idxN, size_t len)
1440 struct got_imsg_tree_entries ientries;
1443 memset(&ientries, 0, sizeof(ientries));
1445 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRIES, 0, 0, len);
1447 return got_error_from_errno("imsg_create TREE_ENTRY");
1449 ientries.nentries = idxN - idx0 + 1;
1450 if (imsg_add(wbuf, &ientries, sizeof(ientries)) == -1)
1451 return got_error_from_errno("imsg_add TREE_ENTRY");
1453 for (i = idx0; i <= idxN; i++) {
1454 struct got_parsed_tree_entry *pte = &entries[i];
1456 /* Keep in sync with struct got_imsg_tree_entry definition! */
1457 if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1)
1458 return got_error_from_errno("imsg_add TREE_ENTRY");
1459 if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1)
1460 return got_error_from_errno("imsg_add TREE_ENTRY");
1461 if (imsg_add(wbuf, &pte->namelen, sizeof(pte->namelen)) == -1)
1462 return got_error_from_errno("imsg_add TREE_ENTRY");
1464 /* Remaining bytes are the entry's name. */
1465 if (imsg_add(wbuf, pte->name, pte->namelen) == -1)
1466 return got_error_from_errno("imsg_add TREE_ENTRY");
1469 imsg_close(ibuf, wbuf);
1473 static const struct got_error *
1474 send_tree_entries(struct imsgbuf *ibuf, struct got_parsed_tree_entry *entries,
1477 const struct got_error *err = NULL;
1479 size_t entries_len = sizeof(struct got_imsg_tree_entries);
1482 for (j = 0; j < nentries; j++) {
1483 struct got_parsed_tree_entry *pte = &entries[j];
1484 size_t len = sizeof(struct got_imsg_tree_entry) + pte->namelen;
1487 entries_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1488 err = send_tree_entries_batch(ibuf, entries,
1489 i, j - 1, entries_len);
1493 entries_len = sizeof(struct got_imsg_tree_entries);
1500 err = send_tree_entries_batch(ibuf, entries, i, j - 1,
1509 const struct got_error *
1510 got_privsep_send_tree(struct imsgbuf *ibuf,
1511 struct got_parsed_tree_entry *entries, int nentries)
1513 const struct got_error *err = NULL;
1514 struct got_imsg_tree_object itree;
1516 memset(&itree, 0, sizeof(itree));
1517 itree.nentries = nentries;
1518 if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
1520 return got_error_from_errno("imsg_compose TREE");
1522 err = send_tree_entries(ibuf, entries, nentries);
1526 return flush_imsg(ibuf);
1530 static const struct got_error *
1531 recv_tree_entries(void *data, size_t datalen, struct got_tree_object *tree,
1534 const struct got_error *err = NULL;
1535 struct got_imsg_tree_entries *ientries;
1536 struct got_tree_entry *te;
1540 if (datalen <= sizeof(*ientries) ||
1541 datalen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
1542 return got_error(GOT_ERR_PRIVSEP_LEN);
1544 ientries = (struct got_imsg_tree_entries *)data;
1545 if (ientries->nentries > INT_MAX) {
1546 return got_error_msg(GOT_ERR_NO_SPACE,
1547 "too many tree entries");
1550 te_offset = sizeof(*ientries);
1551 for (i = 0; i < ientries->nentries; i++) {
1552 struct got_imsg_tree_entry ite;
1553 const char *te_name;
1554 uint8_t *buf = (uint8_t *)data + te_offset;
1556 if (te_offset >= datalen) {
1557 err = got_error(GOT_ERR_PRIVSEP_LEN);
1561 /* Might not be aligned, size is ~32 bytes. */
1562 memcpy(&ite, buf, sizeof(ite));
1564 if (ite.namelen >= sizeof(te->name)) {
1565 err = got_error(GOT_ERR_PRIVSEP_LEN);
1568 if (te_offset + sizeof(ite) + ite.namelen > datalen) {
1569 err = got_error(GOT_ERR_PRIVSEP_LEN);
1573 if (*nentries >= tree->nentries) {
1574 err = got_error(GOT_ERR_PRIVSEP_LEN);
1577 te = &tree->entries[*nentries];
1578 te_name = buf + sizeof(ite);
1579 memcpy(te->name, te_name, ite.namelen);
1580 te->name[ite.namelen] = '\0';
1581 memcpy(te->id.sha1, ite.id, SHA1_DIGEST_LENGTH);
1582 te->mode = ite.mode;
1583 te->idx = *nentries;
1586 te_offset += sizeof(ite) + ite.namelen;
1592 const struct got_error *
1593 got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
1595 const struct got_error *err = NULL;
1596 const size_t min_datalen = sizeof(struct got_imsg_tree_object);
1597 struct got_imsg_tree_object *itree;
1602 while (*tree == NULL || nentries < (*tree)->nentries) {
1606 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1610 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1612 switch (imsg.hdr.type) {
1614 /* This message should only appear once. */
1615 if (*tree != NULL) {
1616 err = got_error(GOT_ERR_PRIVSEP_MSG);
1619 if (datalen != sizeof(*itree)) {
1620 err = got_error(GOT_ERR_PRIVSEP_LEN);
1624 if (itree->nentries < 0) {
1625 err = got_error(GOT_ERR_PRIVSEP_LEN);
1628 *tree = malloc(sizeof(**tree));
1629 if (*tree == NULL) {
1630 err = got_error_from_errno("malloc");
1633 (*tree)->entries = calloc(itree->nentries,
1634 sizeof(struct got_tree_entry));
1635 if ((*tree)->entries == NULL) {
1636 err = got_error_from_errno("malloc");
1641 (*tree)->nentries = itree->nentries;
1642 (*tree)->refcnt = 0;
1644 case GOT_IMSG_TREE_ENTRIES:
1645 /* This message should be preceeded by GOT_IMSG_TREE. */
1646 if (*tree == NULL) {
1647 err = got_error(GOT_ERR_PRIVSEP_MSG);
1650 err = recv_tree_entries(imsg.data, datalen,
1654 err = got_error(GOT_ERR_PRIVSEP_MSG);
1663 if (*tree && (*tree)->nentries != nentries) {
1665 err = got_error(GOT_ERR_PRIVSEP_LEN);
1666 got_object_tree_close(*tree);
1673 const struct got_error *
1674 got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
1675 const uint8_t *data)
1677 struct got_imsg_blob iblob;
1679 memset(&iblob, 0, sizeof(iblob));
1681 iblob.hdrlen = hdrlen;
1686 if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
1687 return got_error(GOT_ERR_NO_SPACE);
1689 buf = malloc(sizeof(iblob) + size);
1691 return got_error_from_errno("malloc");
1693 memcpy(buf, &iblob, sizeof(iblob));
1694 memcpy(buf + sizeof(iblob), data, size);
1695 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
1696 sizeof(iblob) + size) == -1) {
1698 return got_error_from_errno("imsg_compose BLOB");
1702 /* Data has already been written to file descriptor. */
1703 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
1704 sizeof(iblob)) == -1)
1705 return got_error_from_errno("imsg_compose BLOB");
1709 return flush_imsg(ibuf);
1712 const struct got_error *
1713 got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1714 struct imsgbuf *ibuf)
1716 const struct got_error *err = NULL;
1718 struct got_imsg_blob *iblob;
1723 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1727 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1729 switch (imsg.hdr.type) {
1731 if (datalen < sizeof(*iblob)) {
1732 err = got_error(GOT_ERR_PRIVSEP_LEN);
1736 *size = iblob->size;
1737 *hdrlen = iblob->hdrlen;
1739 if (datalen == sizeof(*iblob)) {
1740 /* Data has been written to file descriptor. */
1744 if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX ||
1745 *size > datalen + sizeof(*iblob)) {
1746 err = got_error(GOT_ERR_PRIVSEP_LEN);
1750 *outbuf = malloc(*size);
1751 if (*outbuf == NULL) {
1752 err = got_error_from_errno("malloc");
1755 memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
1758 err = got_error(GOT_ERR_PRIVSEP_MSG);
1767 static const struct got_error *
1768 send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
1770 const struct got_error *err = NULL;
1771 size_t offset, remain;
1774 remain = tagmsg_len;
1775 while (remain > 0) {
1776 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1778 if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
1779 tag->tagmsg + offset, n) == -1) {
1780 err = got_error_from_errno("imsg_compose TAG_TAGMSG");
1784 err = flush_imsg(ibuf);
1795 const struct got_error *
1796 got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1798 const struct got_error *err = NULL;
1799 struct got_imsg_tag_object *itag;
1802 size_t tag_len = strlen(tag->tag);
1803 size_t tagger_len = strlen(tag->tagger);
1804 size_t tagmsg_len = strlen(tag->tagmsg);
1806 total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1808 buf = malloc(total);
1810 return got_error_from_errno("malloc");
1812 itag = (struct got_imsg_tag_object *)buf;
1813 memcpy(&itag->id, &tag->id, sizeof(itag->id));
1814 itag->obj_type = tag->obj_type;
1815 itag->tag_len = tag_len;
1816 itag->tagger_len = tagger_len;
1817 itag->tagger_time = tag->tagger_time;
1818 itag->tagger_gmtoff = tag->tagger_gmtoff;
1819 itag->tagmsg_len = tagmsg_len;
1821 len = sizeof(*itag);
1822 memcpy(buf + len, tag->tag, tag_len);
1824 memcpy(buf + len, tag->tagger, tagger_len);
1827 if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1828 err = got_error_from_errno("imsg_compose TAG");
1832 if (tagmsg_len == 0 ||
1833 tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1834 err = flush_imsg(ibuf);
1838 err = send_tagmsg(ibuf, tag, tagmsg_len);
1844 const struct got_error *
1845 got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1847 const struct got_error *err = NULL;
1849 struct got_imsg_tag_object *itag;
1850 size_t len, datalen;
1851 const size_t min_datalen = sizeof(struct got_imsg_tag_object);
1855 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1859 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1862 switch (imsg.hdr.type) {
1864 if (datalen < sizeof(*itag)) {
1865 err = got_error(GOT_ERR_PRIVSEP_LEN);
1869 if (datalen != sizeof(*itag) + itag->tag_len +
1871 err = got_error(GOT_ERR_PRIVSEP_LEN);
1874 len += sizeof(*itag);
1876 *tag = calloc(1, sizeof(**tag));
1878 err = got_error_from_errno("calloc");
1882 memcpy(&(*tag)->id, &itag->id, sizeof(itag->id));
1884 (*tag)->tag = strndup(imsg.data + len, itag->tag_len);
1885 if ((*tag)->tag == NULL) {
1886 err = got_error_from_errno("strndup");
1889 len += itag->tag_len;
1891 (*tag)->obj_type = itag->obj_type;
1892 (*tag)->tagger_time = itag->tagger_time;
1893 (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1895 (*tag)->tagger = strndup(imsg.data + len, itag->tagger_len);
1896 if ((*tag)->tagger == NULL) {
1897 err = got_error_from_errno("strndup");
1900 len += itag->tagger_len;
1902 if (itag->tagmsg_len == 0) {
1903 (*tag)->tagmsg = strdup("");
1904 if ((*tag)->tagmsg == NULL) {
1905 err = got_error_from_errno("strdup");
1909 size_t offset = 0, remain = itag->tagmsg_len;
1911 (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1912 if ((*tag)->tagmsg == NULL) {
1913 err = got_error_from_errno("malloc");
1916 while (remain > 0) {
1917 struct imsg imsg_log;
1918 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1921 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1925 if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1926 return got_error(GOT_ERR_PRIVSEP_MSG);
1928 memcpy((*tag)->tagmsg + offset, imsg_log.data,
1930 imsg_free(&imsg_log);
1934 (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1939 err = got_error(GOT_ERR_PRIVSEP_MSG);
1948 const struct got_error *
1949 got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1950 struct got_packidx *packidx)
1952 const struct got_error *err = NULL;
1953 struct got_imsg_packidx ipackidx;
1954 struct got_imsg_pack ipack;
1957 memset(&ipackidx, 0, sizeof(ipackidx));
1958 memset(&ipack, 0, sizeof(ipack));
1960 ipackidx.len = packidx->len;
1961 ipackidx.packfile_size = pack->filesize;
1962 fd = dup(packidx->fd);
1964 return got_error_from_errno("dup");
1966 if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1967 sizeof(ipackidx)) == -1) {
1968 err = got_error_from_errno("imsg_compose PACKIDX");
1973 if (strlcpy(ipack.path_packfile, pack->path_packfile,
1974 sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1975 return got_error(GOT_ERR_NO_SPACE);
1976 ipack.filesize = pack->filesize;
1980 return got_error_from_errno("dup");
1982 if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
1984 err = got_error_from_errno("imsg_compose PACK");
1989 return flush_imsg(ibuf);
1992 const struct got_error *
1993 got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
1994 struct got_object_id *id)
1996 struct got_imsg_packed_object iobj;
1998 memset(&iobj, 0, sizeof(iobj));
2000 memcpy(&iobj.id, id, sizeof(iobj.id));
2002 if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
2003 &iobj, sizeof(iobj)) == -1)
2004 return got_error_from_errno("imsg_compose "
2005 "PACKED_OBJECT_REQUEST");
2007 return flush_imsg(ibuf);
2010 const struct got_error *
2011 got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx,
2012 struct got_object_id *id)
2014 struct got_imsg_packed_object iobj;
2016 memset(&iobj, 0, sizeof(iobj));
2018 memcpy(&iobj.id, id, sizeof(iobj.id));
2020 if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1,
2021 &iobj, sizeof(iobj)) == -1)
2022 return got_error_from_errno("imsg_compose "
2023 "PACKED_OBJECT_REQUEST");
2025 return flush_imsg(ibuf);
2028 const struct got_error *
2029 got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
2031 const struct got_error *err = NULL;
2033 if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
2035 err = got_error_from_errno("imsg_compose "
2036 "GITCONFIG_PARSE_REQUEST");
2041 return flush_imsg(ibuf);
2044 const struct got_error *
2045 got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
2047 if (imsg_compose(ibuf,
2048 GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
2050 return got_error_from_errno("imsg_compose "
2051 "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
2053 return flush_imsg(ibuf);
2056 const struct got_error *
2057 got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf)
2059 if (imsg_compose(ibuf,
2060 GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1,
2062 return got_error_from_errno("imsg_compose "
2063 "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST");
2065 return flush_imsg(ibuf);
2069 const struct got_error *
2070 got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
2072 if (imsg_compose(ibuf,
2073 GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
2074 return got_error_from_errno("imsg_compose "
2075 "GITCONFIG_AUTHOR_NAME_REQUEST");
2077 return flush_imsg(ibuf);
2080 const struct got_error *
2081 got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
2083 if (imsg_compose(ibuf,
2084 GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
2085 return got_error_from_errno("imsg_compose "
2086 "GITCONFIG_AUTHOR_EMAIL_REQUEST");
2088 return flush_imsg(ibuf);
2091 const struct got_error *
2092 got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
2094 if (imsg_compose(ibuf,
2095 GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2096 return got_error_from_errno("imsg_compose "
2097 "GITCONFIG_REMOTE_REQUEST");
2099 return flush_imsg(ibuf);
2102 const struct got_error *
2103 got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf)
2105 if (imsg_compose(ibuf,
2106 GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL, 0) == -1)
2107 return got_error_from_errno("imsg_compose "
2108 "GITCONFIG_OWNER_REQUEST");
2110 return flush_imsg(ibuf);
2113 const struct got_error *
2114 got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
2116 const struct got_error *err = NULL;
2122 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2125 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2127 switch (imsg.hdr.type) {
2128 case GOT_IMSG_GITCONFIG_STR_VAL:
2131 *str = strndup(imsg.data, datalen);
2133 err = got_error_from_errno("strndup");
2138 err = got_error(GOT_ERR_PRIVSEP_MSG);
2146 const struct got_error *
2147 got_privsep_recv_gitconfig_pair(char **key, char **val, struct imsgbuf *ibuf)
2149 const struct got_error *err = NULL;
2150 struct got_imsg_gitconfig_pair p;
2157 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2162 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2164 if (imsg.hdr.type != GOT_IMSG_GITCONFIG_PAIR) {
2165 err = got_error(GOT_ERR_PRIVSEP_MSG);
2169 if (datalen < sizeof(p)) {
2170 err = got_error(GOT_ERR_PRIVSEP_LEN);
2174 memcpy(&p, data, sizeof(p));
2177 if (datalen != sizeof(p) + p.klen + p.vlen) {
2178 err = got_error(GOT_ERR_PRIVSEP_LEN);
2182 *key = strndup(data, p.klen);
2184 err = got_error_from_errno("strndup");
2189 *val = strndup(data, p.vlen);
2191 err = got_error_from_errno("strndup");
2200 const struct got_error *
2201 got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
2203 const struct got_error *err = NULL;
2206 const size_t min_datalen = sizeof(int);
2210 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2213 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2215 switch (imsg.hdr.type) {
2216 case GOT_IMSG_GITCONFIG_INT_VAL:
2217 if (datalen != sizeof(*val)) {
2218 err = got_error(GOT_ERR_PRIVSEP_LEN);
2221 memcpy(val, imsg.data, sizeof(*val));
2224 err = got_error(GOT_ERR_PRIVSEP_MSG);
2233 free_remote_data(struct got_remote_repo *remote)
2238 free(remote->fetch_url);
2239 free(remote->send_url);
2240 for (i = 0; i < remote->nfetch_branches; i++)
2241 free(remote->fetch_branches[i]);
2242 free(remote->fetch_branches);
2243 for (i = 0; i < remote->nsend_branches; i++)
2244 free(remote->send_branches[i]);
2245 free(remote->send_branches);
2246 for (i = 0; i < remote->nfetch_refs; i++)
2247 free(remote->fetch_refs[i]);
2248 free(remote->fetch_refs);
2251 const struct got_error *
2252 got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
2253 int *nremotes, struct imsgbuf *ibuf)
2255 const struct got_error *err = NULL;
2258 struct got_imsg_remotes iremotes;
2259 struct got_imsg_remote iremote;
2263 iremotes.nremotes = 0;
2265 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
2268 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2270 switch (imsg.hdr.type) {
2271 case GOT_IMSG_GITCONFIG_REMOTES:
2272 if (datalen != sizeof(iremotes)) {
2274 return got_error(GOT_ERR_PRIVSEP_LEN);
2276 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2277 if (iremotes.nremotes == 0) {
2284 return got_error(GOT_ERR_PRIVSEP_MSG);
2289 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2290 if (*remotes == NULL)
2291 return got_error_from_errno("recallocarray");
2293 while (*nremotes < iremotes.nremotes) {
2294 struct got_remote_repo *remote;
2296 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
2299 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2301 switch (imsg.hdr.type) {
2302 case GOT_IMSG_GITCONFIG_REMOTE:
2303 remote = &(*remotes)[*nremotes];
2304 memset(remote, 0, sizeof(*remote));
2305 if (datalen < sizeof(iremote)) {
2306 err = got_error(GOT_ERR_PRIVSEP_LEN);
2309 memcpy(&iremote, imsg.data, sizeof(iremote));
2310 if (iremote.name_len == 0 ||
2311 iremote.fetch_url_len == 0 ||
2312 iremote.send_url_len == 0 ||
2313 (sizeof(iremote) + iremote.name_len +
2314 iremote.fetch_url_len + iremote.send_url_len) > datalen) {
2315 err = got_error(GOT_ERR_PRIVSEP_LEN);
2318 remote->name = strndup(imsg.data + sizeof(iremote),
2320 if (remote->name == NULL) {
2321 err = got_error_from_errno("strndup");
2324 remote->fetch_url = strndup(imsg.data + sizeof(iremote) +
2325 iremote.name_len, iremote.fetch_url_len);
2326 if (remote->fetch_url == NULL) {
2327 err = got_error_from_errno("strndup");
2328 free_remote_data(remote);
2331 remote->send_url = strndup(imsg.data + sizeof(iremote) +
2332 iremote.name_len + iremote.fetch_url_len,
2333 iremote.send_url_len);
2334 if (remote->send_url == NULL) {
2335 err = got_error_from_errno("strndup");
2336 free_remote_data(remote);
2339 remote->mirror_references = iremote.mirror_references;
2340 remote->fetch_all_branches = iremote.fetch_all_branches;
2341 remote->nfetch_branches = 0;
2342 remote->fetch_branches = NULL;
2343 remote->nsend_branches = 0;
2344 remote->send_branches = NULL;
2345 remote->nfetch_refs = 0;
2346 remote->fetch_refs = NULL;
2350 err = got_error(GOT_ERR_PRIVSEP_MSG);
2361 for (i = 0; i < *nremotes; i++)
2362 free_remote_data(&(*remotes)[i]);
2370 const struct got_error *
2371 got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd)
2373 const struct got_error *err = NULL;
2375 if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd,
2377 err = got_error_from_errno("imsg_compose "
2378 "GOTCONFIG_PARSE_REQUEST");
2383 return flush_imsg(ibuf);
2386 const struct got_error *
2387 got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf)
2389 if (imsg_compose(ibuf,
2390 GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL, 0) == -1)
2391 return got_error_from_errno("imsg_compose "
2392 "GOTCONFIG_AUTHOR_REQUEST");
2394 return flush_imsg(ibuf);
2397 const struct got_error *
2398 got_privsep_send_gotconfig_allowed_signers_req(struct imsgbuf *ibuf)
2400 if (imsg_compose(ibuf,
2401 GOT_IMSG_GOTCONFIG_ALLOWEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2402 return got_error_from_errno("imsg_compose "
2403 "GOTCONFIG_ALLOWEDSIGNERS_REQUEST");
2405 return flush_imsg(ibuf);
2408 const struct got_error *
2409 got_privsep_send_gotconfig_revoked_signers_req(struct imsgbuf *ibuf)
2411 if (imsg_compose(ibuf,
2412 GOT_IMSG_GOTCONFIG_REVOKEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2413 return got_error_from_errno("imsg_compose "
2414 "GOTCONFIG_REVOKEDSIGNERS_REQUEST");
2416 return flush_imsg(ibuf);
2419 const struct got_error *
2420 got_privsep_send_gotconfig_signer_id_req(struct imsgbuf *ibuf)
2422 if (imsg_compose(ibuf,
2423 GOT_IMSG_GOTCONFIG_SIGNERID_REQUEST, 0, 0, -1, NULL, 0) == -1)
2424 return got_error_from_errno("imsg_compose "
2425 "GOTCONFIG_SIGNERID_REQUEST");
2427 return flush_imsg(ibuf);
2430 const struct got_error *
2431 got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf)
2433 if (imsg_compose(ibuf,
2434 GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2435 return got_error_from_errno("imsg_compose "
2436 "GOTCONFIG_REMOTE_REQUEST");
2438 return flush_imsg(ibuf);
2441 const struct got_error *
2442 got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf)
2444 const struct got_error *err = NULL;
2450 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2453 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2455 switch (imsg.hdr.type) {
2456 case GOT_IMSG_GOTCONFIG_STR_VAL:
2459 *str = strndup(imsg.data, datalen);
2461 err = got_error_from_errno("strndup");
2466 err = got_error(GOT_ERR_PRIVSEP_MSG);
2474 const struct got_error *
2475 got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes,
2476 int *nremotes, struct imsgbuf *ibuf)
2478 const struct got_error *err = NULL;
2481 struct got_imsg_remotes iremotes;
2482 struct got_imsg_remote iremote;
2483 const size_t min_datalen = sizeof(iremotes);
2487 iremotes.nremotes = 0;
2489 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2492 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2494 switch (imsg.hdr.type) {
2495 case GOT_IMSG_GOTCONFIG_REMOTES:
2496 if (datalen != sizeof(iremotes)) {
2497 err = got_error(GOT_ERR_PRIVSEP_LEN);
2500 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2501 if (iremotes.nremotes < 0) {
2502 err = got_error(GOT_ERR_PRIVSEP_LEN);
2505 if (iremotes.nremotes == 0) {
2512 return got_error(GOT_ERR_PRIVSEP_MSG);
2517 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2518 if (*remotes == NULL)
2519 return got_error_from_errno("recallocarray");
2521 while (*nremotes < iremotes.nremotes) {
2522 struct got_remote_repo *remote;
2523 const size_t min_datalen = sizeof(iremote);
2526 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2529 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2531 switch (imsg.hdr.type) {
2532 case GOT_IMSG_GOTCONFIG_REMOTE:
2533 remote = &(*remotes)[*nremotes];
2534 memset(remote, 0, sizeof(*remote));
2535 if (datalen < sizeof(iremote)) {
2536 err = got_error(GOT_ERR_PRIVSEP_LEN);
2539 memcpy(&iremote, imsg.data, sizeof(iremote));
2540 if (iremote.name_len == 0 ||
2541 (iremote.fetch_url_len == 0 &&
2542 iremote.send_url_len == 0) ||
2543 (sizeof(iremote) + iremote.name_len +
2544 iremote.fetch_url_len + iremote.send_url_len) >
2546 err = got_error(GOT_ERR_PRIVSEP_LEN);
2549 remote->name = strndup(imsg.data + sizeof(iremote),
2551 if (remote->name == NULL) {
2552 err = got_error_from_errno("strndup");
2555 remote->fetch_url = strndup(imsg.data +
2556 sizeof(iremote) + iremote.name_len,
2557 iremote.fetch_url_len);
2558 if (remote->fetch_url == NULL) {
2559 err = got_error_from_errno("strndup");
2560 free_remote_data(remote);
2563 remote->send_url = strndup(imsg.data +
2564 sizeof(iremote) + iremote.name_len +
2565 iremote.fetch_url_len, iremote.send_url_len);
2566 if (remote->send_url == NULL) {
2567 err = got_error_from_errno("strndup");
2568 free_remote_data(remote);
2571 remote->mirror_references = iremote.mirror_references;
2572 remote->fetch_all_branches = iremote.fetch_all_branches;
2573 if (iremote.nfetch_branches > 0) {
2574 remote->fetch_branches = recallocarray(NULL, 0,
2575 iremote.nfetch_branches, sizeof(char *));
2576 if (remote->fetch_branches == NULL) {
2577 err = got_error_from_errno("calloc");
2578 free_remote_data(remote);
2582 remote->nfetch_branches = 0;
2583 for (i = 0; i < iremote.nfetch_branches; i++) {
2585 err = got_privsep_recv_gotconfig_str(&branch,
2588 free_remote_data(remote);
2591 remote->fetch_branches[i] = branch;
2592 remote->nfetch_branches++;
2594 if (iremote.nsend_branches > 0) {
2595 remote->send_branches = recallocarray(NULL, 0,
2596 iremote.nsend_branches, sizeof(char *));
2597 if (remote->send_branches == NULL) {
2598 err = got_error_from_errno("calloc");
2599 free_remote_data(remote);
2603 remote->nsend_branches = 0;
2604 for (i = 0; i < iremote.nsend_branches; i++) {
2606 err = got_privsep_recv_gotconfig_str(&branch,
2609 free_remote_data(remote);
2612 remote->send_branches[i] = branch;
2613 remote->nsend_branches++;
2615 if (iremote.nfetch_refs > 0) {
2616 remote->fetch_refs = recallocarray(NULL, 0,
2617 iremote.nfetch_refs, sizeof(char *));
2618 if (remote->fetch_refs == NULL) {
2619 err = got_error_from_errno("calloc");
2620 free_remote_data(remote);
2624 remote->nfetch_refs = 0;
2625 for (i = 0; i < iremote.nfetch_refs; i++) {
2627 err = got_privsep_recv_gotconfig_str(&ref,
2630 free_remote_data(remote);
2633 remote->fetch_refs[i] = ref;
2634 remote->nfetch_refs++;
2639 err = got_error(GOT_ERR_PRIVSEP_MSG);
2650 for (i = 0; i < *nremotes; i++)
2651 free_remote_data(&(*remotes)[i]);
2659 const struct got_error *
2660 got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf,
2661 struct got_object_id *id, int idx, const char *path)
2664 size_t path_len = strlen(path);
2666 wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0,
2667 sizeof(struct got_imsg_commit_traversal_request) + path_len);
2669 return got_error_from_errno(
2670 "imsg_create COMMIT_TRAVERSAL_REQUEST");
2672 * Keep in sync with struct got_imsg_commit_traversal_request
2673 * and struct got_imsg_packed_object.
2675 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
2676 return got_error_from_errno("imsg_add "
2677 "COMMIT_TRAVERSAL_REQUEST");
2678 if (imsg_add(wbuf, &idx, sizeof(idx)) == -1)
2679 return got_error_from_errno("imsg_add "
2680 "COMMIT_TRAVERSAL_REQUEST");
2681 if (imsg_add(wbuf, &path_len, sizeof(path_len)) == -1)
2682 return got_error_from_errno("imsg_add "
2683 "COMMIT_TRAVERSAL_REQUEST");
2684 if (imsg_add(wbuf, path, path_len) == -1)
2685 return got_error_from_errno("imsg_add "
2686 "COMMIT_TRAVERSAL_REQUEST");
2688 imsg_close(ibuf, wbuf);
2689 return flush_imsg(ibuf);
2692 const struct got_error *
2693 got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit,
2694 struct got_object_id **changed_commit_id,
2695 struct got_object_id_queue *commit_ids, struct imsgbuf *ibuf)
2697 const struct got_error *err = NULL;
2699 struct got_imsg_traversed_commits *icommits;
2700 struct got_object_id *ids;
2704 *changed_commit = NULL;
2705 *changed_commit_id = NULL;
2708 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2712 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2713 switch (imsg.hdr.type) {
2714 case GOT_IMSG_TRAVERSED_COMMITS:
2715 icommits = imsg.data;
2716 if (datalen != sizeof(*icommits) +
2717 icommits->ncommits * sizeof(*ids)) {
2718 err = got_error(GOT_ERR_PRIVSEP_LEN);
2721 ids = imsg.data + sizeof(*icommits);
2722 for (i = 0; i < icommits->ncommits; i++) {
2723 struct got_object_qid *qid;
2725 err = got_object_qid_alloc_partial(&qid);
2728 memcpy(&qid->id, &ids[i], sizeof(ids[i]));
2729 STAILQ_INSERT_TAIL(commit_ids, qid, entry);
2731 /* The last commit may contain a change. */
2732 if (i == icommits->ncommits - 1) {
2733 *changed_commit_id =
2734 got_object_id_dup(&qid->id);
2735 if (*changed_commit_id == NULL) {
2736 err = got_error_from_errno(
2737 "got_object_id_dup");
2743 case GOT_IMSG_COMMIT:
2744 if (*changed_commit_id == NULL) {
2745 err = got_error(GOT_ERR_PRIVSEP_MSG);
2748 err = get_commit_from_imsg(changed_commit, &imsg,
2751 case GOT_IMSG_COMMIT_TRAVERSAL_DONE:
2755 err = got_error(GOT_ERR_PRIVSEP_MSG);
2765 got_object_id_queue_free(commit_ids);
2769 const struct got_error *
2770 got_privsep_send_enumerated_tree(size_t *totlen, struct imsgbuf *ibuf,
2771 struct got_object_id *tree_id, const char *path,
2772 struct got_parsed_tree_entry *entries, int nentries)
2774 const struct got_error *err = NULL;
2776 size_t path_len = strlen(path);
2779 msglen = sizeof(struct got_imsg_enumerated_tree) + path_len;
2780 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_TREE, 0, 0, msglen);
2782 return got_error_from_errno("imsg_create ENUMERATED_TREE");
2784 if (imsg_add(wbuf, tree_id->sha1, SHA1_DIGEST_LENGTH) == -1)
2785 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2786 if (imsg_add(wbuf, &nentries, sizeof(nentries)) == -1)
2787 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2788 if (imsg_add(wbuf, path, path_len) == -1)
2789 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2791 imsg_close(ibuf, wbuf);
2794 err = send_tree_entries(ibuf, entries, nentries);
2799 return flush_imsg(ibuf);
2802 const struct got_error *
2803 got_privsep_send_object_enumeration_request(struct imsgbuf *ibuf)
2805 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_REQUEST,
2806 0, 0, -1, NULL, 0) == -1)
2807 return got_error_from_errno("imsg_compose "
2808 "OBJECT_ENUMERATION_REQUEST");
2810 return flush_imsg(ibuf);
2813 const struct got_error *
2814 got_privsep_send_object_enumeration_done(struct imsgbuf *ibuf)
2816 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_DONE,
2817 0, 0, -1, NULL, 0) == -1)
2818 return got_error_from_errno("imsg_compose "
2819 "OBJECT_ENUMERATION_DONE");
2821 return flush_imsg(ibuf);
2824 const struct got_error *
2825 got_privsep_send_object_enumeration_incomplete(struct imsgbuf *ibuf)
2827 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE,
2828 0, 0, -1, NULL, 0) == -1)
2829 return got_error_from_errno("imsg_compose "
2830 "OBJECT_ENUMERATION_INCOMPLETE");
2832 return flush_imsg(ibuf);
2835 const struct got_error *
2836 got_privsep_send_enumerated_commit(struct imsgbuf *ibuf,
2837 struct got_object_id *id, time_t mtime)
2841 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_COMMIT, 0, 0,
2842 sizeof(struct got_imsg_enumerated_commit) + SHA1_DIGEST_LENGTH);
2844 return got_error_from_errno("imsg_create ENUMERATED_COMMIT");
2846 /* Keep in sync with struct got_imsg_enumerated_commit! */
2847 if (imsg_add(wbuf, id, SHA1_DIGEST_LENGTH) == -1)
2848 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2849 if (imsg_add(wbuf, &mtime, sizeof(mtime)) == -1)
2850 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2852 imsg_close(ibuf, wbuf);
2853 /* Don't flush yet, tree entries or ENUMERATION_DONE will follow. */
2857 const struct got_error *
2858 got_privsep_recv_enumerated_objects(int *found_all_objects,
2859 struct imsgbuf *ibuf,
2860 got_object_enumerate_commit_cb cb_commit,
2861 got_object_enumerate_tree_cb cb_tree, void *cb_arg,
2862 struct got_repository *repo)
2864 const struct got_error *err = NULL;
2866 struct got_imsg_enumerated_commit *icommit = NULL;
2867 struct got_object_id commit_id;
2868 int have_commit = 0;
2870 struct got_tree_object tree;
2871 struct got_imsg_enumerated_tree *itree;
2872 struct got_object_id tree_id;
2873 char *path = NULL, *canon_path = NULL;
2874 size_t datalen, path_len;
2878 *found_all_objects = 0;
2879 memset(&tree, 0, sizeof(tree));
2882 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2886 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2887 switch (imsg.hdr.type) {
2888 case GOT_IMSG_ENUMERATED_COMMIT:
2889 if (have_commit && nentries != -1) {
2890 err = got_error(GOT_ERR_PRIVSEP_MSG);
2893 if (datalen != sizeof(*icommit)) {
2894 err = got_error(GOT_ERR_PRIVSEP_LEN);
2897 icommit = (struct got_imsg_enumerated_commit *)imsg.data;
2898 memcpy(commit_id.sha1, icommit->id, SHA1_DIGEST_LENGTH);
2899 mtime = icommit->mtime;
2902 case GOT_IMSG_ENUMERATED_TREE:
2903 /* Should be preceeded by GOT_IMSG_ENUMERATED_COMMIT. */
2905 err = got_error(GOT_ERR_PRIVSEP_MSG);
2908 if (datalen < sizeof(*itree)) {
2909 err = got_error(GOT_ERR_PRIVSEP_LEN);
2913 path_len = datalen - sizeof(*itree);
2914 if (path_len == 0) {
2915 err = got_error(GOT_ERR_PRIVSEP_LEN);
2918 memcpy(tree_id.sha1, itree->id, sizeof(tree_id.sha1));
2920 path = strndup(imsg.data + sizeof(*itree), path_len);
2922 err = got_error_from_errno("strndup");
2926 canon_path = malloc(path_len + 1);
2927 if (canon_path == NULL) {
2928 err = got_error_from_errno("malloc");
2931 if (!got_path_is_absolute(path)) {
2932 err = got_error(GOT_ERR_BAD_PATH);
2935 if (got_path_is_root_dir(path)) {
2936 /* XXX check what got_canonpath() does wrong */
2937 canon_path[0] = '/';
2938 canon_path[1] = '\0';
2940 err = got_canonpath(path, canon_path,
2945 if (strcmp(path, canon_path) != 0) {
2946 err = got_error(GOT_ERR_BAD_PATH);
2949 if (nentries != -1) {
2950 err = got_error(GOT_ERR_PRIVSEP_MSG);
2953 if (itree->nentries < -1) {
2954 err = got_error(GOT_ERR_PRIVSEP_MSG);
2957 if (itree->nentries == -1) {
2958 /* Tree was not found in pack file. */
2959 err = cb_tree(cb_arg, NULL, mtime, &tree_id,
2963 if (itree->nentries > INT_MAX) {
2964 err = got_error(GOT_ERR_PRIVSEP_LEN);
2967 tree.entries = calloc(itree->nentries,
2968 sizeof(struct got_tree_entry));
2969 if (tree.entries == NULL) {
2970 err = got_error_from_errno("calloc");
2973 if (itree->nentries == 0) {
2974 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2979 /* Prepare for next tree. */
2981 memset(&tree, 0, sizeof(tree));
2984 tree.nentries = itree->nentries;
2988 case GOT_IMSG_TREE_ENTRIES:
2989 /* Should be preceeded by GOT_IMSG_ENUMERATED_TREE. */
2990 if (nentries <= -1) {
2991 err = got_error(GOT_ERR_PRIVSEP_MSG);
2994 err = recv_tree_entries(imsg.data, datalen,
2998 if (tree.nentries == nentries) {
2999 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
3004 /* Prepare for next tree. */
3006 memset(&tree, 0, sizeof(tree));
3010 case GOT_IMSG_TREE_ENUMERATION_DONE:
3011 /* All trees have been found and traversed. */
3012 if (!have_commit || path == NULL || nentries != -1) {
3013 err = got_error(GOT_ERR_PRIVSEP_MSG);
3016 err = cb_commit(cb_arg, mtime, &commit_id, repo);
3021 case GOT_IMSG_OBJECT_ENUMERATION_DONE:
3022 *found_all_objects = 1;
3025 case GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE:
3029 err = got_error(GOT_ERR_PRIVSEP_MSG);
3044 const struct got_error *
3045 got_privsep_send_raw_delta_req(struct imsgbuf *ibuf, int idx,
3046 struct got_object_id *id)
3048 struct got_imsg_raw_delta_request dreq;
3050 memset(&dreq, 0, sizeof(dreq));
3052 memcpy(&dreq.id, id, sizeof(dreq.id));
3054 if (imsg_compose(ibuf, GOT_IMSG_RAW_DELTA_REQUEST, 0, 0, -1,
3055 &dreq, sizeof(dreq)) == -1)
3056 return got_error_from_errno("imsg_compose RAW_DELTA_REQUEST");
3058 return flush_imsg(ibuf);
3061 const struct got_error *
3062 got_privsep_send_raw_delta_outfd(struct imsgbuf *ibuf, int fd)
3064 return send_fd(ibuf, GOT_IMSG_RAW_DELTA_OUTFD, fd);
3067 const struct got_error *
3068 got_privsep_send_raw_delta(struct imsgbuf *ibuf, uint64_t base_size,
3069 uint64_t result_size, off_t delta_size, off_t delta_compressed_size,
3070 off_t delta_offset, off_t delta_out_offset, struct got_object_id *base_id)
3072 struct got_imsg_raw_delta idelta;
3075 memset(&idelta, 0, sizeof(idelta));
3076 idelta.base_size = base_size;
3077 idelta.result_size = result_size;
3078 idelta.delta_size = delta_size;
3079 idelta.delta_compressed_size = delta_compressed_size;
3080 idelta.delta_offset = delta_offset;
3081 idelta.delta_out_offset = delta_out_offset;
3082 memcpy(&idelta.base_id, &base_id, sizeof(idelta.base_id));
3084 ret = imsg_compose(ibuf, GOT_IMSG_RAW_DELTA, 0, 0, -1,
3085 &idelta, sizeof(idelta));
3087 return got_error_from_errno("imsg_compose RAW_DELTA");
3089 return flush_imsg(ibuf);
3092 const struct got_error *
3093 got_privsep_recv_raw_delta(uint64_t *base_size, uint64_t *result_size,
3094 off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
3095 off_t *delta_out_offset, struct got_object_id **base_id,
3096 struct imsgbuf *ibuf)
3098 const struct got_error *err = NULL;
3100 struct got_imsg_raw_delta *delta;
3106 *delta_compressed_size = 0;
3108 *delta_out_offset = 0;
3111 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3115 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3117 switch (imsg.hdr.type) {
3118 case GOT_IMSG_RAW_DELTA:
3119 if (datalen != sizeof(*delta)) {
3120 err = got_error(GOT_ERR_PRIVSEP_LEN);
3124 *base_size = delta->base_size;
3125 *result_size = delta->result_size;
3126 *delta_size = delta->delta_size;
3127 *delta_compressed_size = delta->delta_compressed_size;
3128 *delta_offset = delta->delta_offset;
3129 *delta_out_offset = delta->delta_out_offset;
3130 *base_id = calloc(1, sizeof(**base_id));
3131 if (*base_id == NULL) {
3132 err = got_error_from_errno("malloc");
3135 memcpy(*base_id, &delta->base_id, sizeof(**base_id));
3138 err = got_error(GOT_ERR_PRIVSEP_MSG);
3151 static const struct got_error *
3152 send_idlist(struct imsgbuf *ibuf, struct got_object_id **ids, size_t nids)
3154 const struct got_error *err = NULL;
3155 struct got_imsg_object_idlist idlist;
3159 memset(&idlist, 0, sizeof(idlist));
3161 if (nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS)
3162 return got_error(GOT_ERR_NO_SPACE);
3164 wbuf = imsg_create(ibuf, GOT_IMSG_OBJ_ID_LIST, 0, 0,
3165 sizeof(idlist) + nids * sizeof(**ids));
3167 err = got_error_from_errno("imsg_create OBJ_ID_LIST");
3172 if (imsg_add(wbuf, &idlist, sizeof(idlist)) == -1)
3173 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3175 for (i = 0; i < nids; i++) {
3176 struct got_object_id *id = ids[i];
3177 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
3178 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3181 imsg_close(ibuf, wbuf);
3183 return flush_imsg(ibuf);
3186 const struct got_error *
3187 got_privsep_send_object_idlist(struct imsgbuf *ibuf,
3188 struct got_object_id **ids, size_t nids)
3190 const struct got_error *err = NULL;
3191 struct got_object_id *idlist[GOT_IMSG_OBJ_ID_LIST_MAX_NIDS];
3194 for (i = 0; i < nids; i++) {
3195 idlist[i % nitems(idlist)] = ids[i];
3197 if (queued >= nitems(idlist)) {
3198 err = send_idlist(ibuf, idlist, queued);
3206 err = send_idlist(ibuf, idlist, queued);
3214 const struct got_error *
3215 got_privsep_send_object_idlist_done(struct imsgbuf *ibuf)
3217 if (imsg_compose(ibuf, GOT_IMSG_OBJ_ID_LIST_DONE, 0, 0, -1, NULL, 0)
3219 return got_error_from_errno("imsg_compose OBJ_ID_LIST_DONE");
3221 return flush_imsg(ibuf);
3224 const struct got_error *
3225 got_privsep_recv_object_idlist(int *done, struct got_object_id **ids,
3226 size_t *nids, struct imsgbuf *ibuf)
3228 const struct got_error *err = NULL;
3230 struct got_imsg_object_idlist *idlist;
3237 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3241 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3242 switch (imsg.hdr.type) {
3243 case GOT_IMSG_OBJ_ID_LIST:
3244 if (datalen < sizeof(*idlist)) {
3245 err = got_error(GOT_ERR_PRIVSEP_LEN);
3249 if (idlist->nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3250 idlist->nids * sizeof(**ids) > datalen - sizeof(*idlist)) {
3251 err = got_error(GOT_ERR_PRIVSEP_LEN);
3254 *nids = idlist->nids;
3255 *ids = calloc(*nids, sizeof(**ids));
3257 err = got_error_from_errno("calloc");
3260 memcpy(*ids, (uint8_t *)imsg.data + sizeof(*idlist),
3261 *nids * sizeof(**ids));
3263 case GOT_IMSG_OBJ_ID_LIST_DONE:
3267 err = got_error(GOT_ERR_PRIVSEP_MSG);
3276 const struct got_error *
3277 got_privsep_send_delta_reuse_req(struct imsgbuf *ibuf)
3279 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_REQUEST, 0, 0, -1, NULL, 0)
3281 return got_error_from_errno("imsg_compose DELTA_REUSE_REQUEST");
3283 return flush_imsg(ibuf);
3286 const struct got_error *
3287 got_privsep_send_reused_deltas(struct imsgbuf *ibuf,
3288 struct got_imsg_reused_delta *deltas, size_t ndeltas)
3290 const struct got_error *err = NULL;
3292 struct got_imsg_reused_deltas ideltas;
3295 memset(&ideltas, 0, sizeof(ideltas));
3297 if (ndeltas > GOT_IMSG_REUSED_DELTAS_MAX_NDELTAS)
3298 return got_error(GOT_ERR_NO_SPACE);
3300 wbuf = imsg_create(ibuf, GOT_IMSG_REUSED_DELTAS, 0, 0,
3301 sizeof(ideltas) + ndeltas * sizeof(*deltas));
3303 err = got_error_from_errno("imsg_create REUSED_DELTAS");
3307 ideltas.ndeltas = ndeltas;
3308 if (imsg_add(wbuf, &ideltas, sizeof(ideltas)) == -1)
3309 return got_error_from_errno("imsg_add REUSED_DELTAS");
3311 for (i = 0; i < ndeltas; i++) {
3312 struct got_imsg_reused_delta *delta = &deltas[i];
3313 if (imsg_add(wbuf, delta, sizeof(*delta)) == -1)
3314 return got_error_from_errno("imsg_add REUSED_DELTAS");
3317 imsg_close(ibuf, wbuf);
3319 return flush_imsg(ibuf);
3322 const struct got_error *
3323 got_privsep_send_reused_deltas_done(struct imsgbuf *ibuf)
3325 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_DONE, 0, 0, -1, NULL, 0)
3327 return got_error_from_errno("imsg_compose DELTA_REUSE_DONE");
3329 return flush_imsg(ibuf);
3332 const struct got_error *
3333 got_privsep_recv_reused_deltas(int *done, struct got_imsg_reused_delta *deltas,
3334 size_t *ndeltas, struct imsgbuf *ibuf)
3336 const struct got_error *err = NULL;
3338 struct got_imsg_reused_deltas *ideltas;
3344 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3348 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3349 switch (imsg.hdr.type) {
3350 case GOT_IMSG_REUSED_DELTAS:
3351 if (datalen < sizeof(*ideltas)) {
3352 err = got_error(GOT_ERR_PRIVSEP_LEN);
3355 ideltas = imsg.data;
3356 if (ideltas->ndeltas > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3357 ideltas->ndeltas * sizeof(*deltas) >
3358 datalen - sizeof(*ideltas)) {
3359 err = got_error(GOT_ERR_PRIVSEP_LEN);
3362 *ndeltas = ideltas->ndeltas;
3363 memcpy(deltas, (uint8_t *)imsg.data + sizeof(*ideltas),
3364 *ndeltas * sizeof(*deltas));
3366 case GOT_IMSG_DELTA_REUSE_DONE:
3370 err = got_error(GOT_ERR_PRIVSEP_MSG);
3379 const struct got_error *
3380 got_privsep_init_commit_painting(struct imsgbuf *ibuf)
3382 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_INIT,
3385 return got_error_from_errno("imsg_compose "
3386 "COMMIT_PAINTING_INIT");
3388 return flush_imsg(ibuf);
3391 const struct got_error *
3392 got_privsep_send_painting_request(struct imsgbuf *ibuf, int idx,
3393 struct got_object_id *id, intptr_t color)
3395 struct got_imsg_commit_painting_request ireq;
3397 memset(&ireq, 0, sizeof(ireq));
3398 memcpy(&ireq.id, id, sizeof(ireq.id));
3402 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_REQUEST, 0, 0, -1,
3403 &ireq, sizeof(ireq)) == -1)
3404 return got_error_from_errno("imsg_compose "
3405 "COMMIT_PAINTING_REQUEST");
3407 return flush_imsg(ibuf);
3410 static const struct got_error *
3411 send_painted_commits(struct got_object_id_queue *ids, int *nids,
3412 size_t remain, int present_in_pack, struct imsgbuf *ibuf)
3414 const struct got_error *err = NULL;
3415 struct ibuf *wbuf = NULL;
3416 struct got_object_qid *qid;
3421 msglen = MIN(remain, MAX_IMSGSIZE - IMSG_HEADER_SIZE);
3422 ncommits = (msglen - sizeof(struct got_imsg_painted_commits)) /
3423 sizeof(struct got_imsg_painted_commit);
3425 wbuf = imsg_create(ibuf, GOT_IMSG_PAINTED_COMMITS, 0, 0, msglen);
3427 err = got_error_from_errno("imsg_create PAINTED_COMMITS");
3431 /* Keep in sync with struct got_imsg_painted_commits! */
3432 if (imsg_add(wbuf, &ncommits, sizeof(ncommits)) == -1)
3433 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3434 if (imsg_add(wbuf, &present_in_pack, sizeof(present_in_pack)) == -1)
3435 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3437 while (ncommits > 0) {
3438 qid = STAILQ_FIRST(ids);
3439 STAILQ_REMOVE_HEAD(ids, entry);
3442 color = (intptr_t)qid->data;
3444 /* Keep in sync with struct got_imsg_painted_commit! */
3445 if (imsg_add(wbuf, qid->id.sha1, SHA1_DIGEST_LENGTH) == -1)
3446 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3447 if (imsg_add(wbuf, &color, sizeof(color)) == -1)
3448 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3450 got_object_qid_free(qid);
3453 imsg_close(ibuf, wbuf);
3454 return flush_imsg(ibuf);
3457 const struct got_error *
3458 got_privsep_send_painted_commits(struct imsgbuf *ibuf,
3459 struct got_object_id_queue *ids, int *nids,
3460 int present_in_pack, int flush)
3462 const struct got_error *err;
3469 remain = (sizeof(struct got_imsg_painted_commits)) +
3470 *nids * sizeof(struct got_imsg_painted_commit);
3471 if (flush || remain >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
3472 err = send_painted_commits(ids, nids, remain,
3473 present_in_pack, ibuf);
3477 } while (flush && *nids > 0);
3482 const struct got_error *
3483 got_privsep_send_painting_commits_done(struct imsgbuf *ibuf)
3485 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_DONE,
3488 return got_error_from_errno("imsg_compose "
3489 "COMMIT_PAINTING_DONE");
3491 return flush_imsg(ibuf);
3494 const struct got_error *
3495 got_privsep_recv_painted_commits(struct got_object_id_queue *new_ids,
3496 got_privsep_recv_painted_commit_cb cb, void *cb_arg, struct imsgbuf *ibuf)
3498 const struct got_error *err = NULL;
3500 struct got_imsg_painted_commits icommits;
3501 struct got_imsg_painted_commit icommit;
3506 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3510 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3511 if (imsg.hdr.type == GOT_IMSG_COMMIT_PAINTING_DONE) {
3515 if (imsg.hdr.type != GOT_IMSG_PAINTED_COMMITS){
3517 return got_error(GOT_ERR_PRIVSEP_MSG);
3520 if (datalen < sizeof(icommits)){
3522 return got_error(GOT_ERR_PRIVSEP_LEN);
3524 memcpy(&icommits, imsg.data, sizeof(icommits));
3525 if (icommits.ncommits * sizeof(icommit) < icommits.ncommits ||
3526 datalen < sizeof(icommits) +
3527 icommits.ncommits * sizeof(icommit)){
3529 return got_error(GOT_ERR_PRIVSEP_LEN);
3532 for (i = 0; i < icommits.ncommits; i++) {
3534 (uint8_t *)imsg.data + sizeof(icommits) + i * sizeof(icommit),
3537 if (icommits.present_in_pack) {
3538 struct got_object_id id;
3539 memcpy(id.sha1, icommit.id, SHA1_DIGEST_LENGTH);
3540 err = cb(cb_arg, &id, icommit.color);
3544 struct got_object_qid *qid;
3545 err = got_object_qid_alloc_partial(&qid);
3548 memcpy(qid->id.sha1, icommit.id,
3549 SHA1_DIGEST_LENGTH);
3550 qid->data = (void *)icommit.color;
3551 STAILQ_INSERT_TAIL(new_ids, qid, entry);
3561 const struct got_error *
3562 got_privsep_unveil_exec_helpers(void)
3564 const char *helpers[] = {
3565 GOT_PATH_PROG_READ_PACK,
3566 GOT_PATH_PROG_READ_OBJECT,
3567 GOT_PATH_PROG_READ_COMMIT,
3568 GOT_PATH_PROG_READ_TREE,
3569 GOT_PATH_PROG_READ_BLOB,
3570 GOT_PATH_PROG_READ_TAG,
3571 GOT_PATH_PROG_READ_GITCONFIG,
3572 GOT_PATH_PROG_READ_GOTCONFIG,
3573 GOT_PATH_PROG_READ_PATCH,
3574 GOT_PATH_PROG_FETCH_PACK,
3575 GOT_PATH_PROG_INDEX_PACK,
3576 GOT_PATH_PROG_SEND_PACK,
3580 for (i = 0; i < nitems(helpers); i++) {
3581 if (unveil(helpers[i], "x") == 0)
3583 return got_error_from_errno2("unveil", helpers[i]);
3590 got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
3592 if (close(imsg_fds[0]) == -1) {
3593 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3597 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
3598 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3602 closefrom(GOT_IMSG_FD_CHILD + 1);
3604 if (execl(path, path, repo_path, (char *)NULL) == -1) {
3605 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,