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_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 if (poll_err->code != GOT_ERR_EOF)
182 fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
183 getprogname(), err->code, err->msg, poll_err->msg);
187 ret = imsg_flush(ibuf);
189 fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
190 getprogname(), err->code, err->msg, strerror(errno));
196 static const struct got_error *
197 flush_imsg(struct imsgbuf *ibuf)
199 const struct got_error *err;
201 err = got_poll_fd(ibuf->fd, POLLOUT, INFTIM);
205 if (imsg_flush(ibuf) == -1) {
207 return got_error_from_errno("imsg_flush");
213 const struct got_error *
214 got_privsep_flush_imsg(struct imsgbuf *ibuf)
216 return flush_imsg(ibuf);
219 const struct got_error *
220 got_privsep_send_stop(int fd)
224 imsg_init(&ibuf, fd);
226 if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
227 return got_error_from_errno("imsg_compose STOP");
229 return flush_imsg(&ibuf);
232 const struct got_error *
233 got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd,
234 struct got_object_id *id)
236 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd,
237 id, sizeof(*id)) == -1)
238 return got_error_from_errno("imsg_compose OBJECT_REQUEST");
240 return flush_imsg(ibuf);
243 const struct got_error *
244 got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd,
245 struct got_object_id *id)
247 const struct got_error *err;
249 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd,
250 id, sizeof(*id)) == -1) {
251 err = got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST");
256 return flush_imsg(ibuf);
259 const struct got_error *
260 got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd)
262 const struct got_error *err = NULL;
264 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL, 0)
266 err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD");
271 return flush_imsg(ibuf);
274 const struct got_error *
275 got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen,
278 struct got_imsg_raw_obj iobj;
279 size_t len = sizeof(iobj);
282 memset(&iobj, 0, sizeof(iobj));
283 iobj.hdrlen = hdrlen;
286 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX)
287 len += (size_t)size + hdrlen;
289 wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len);
291 return got_error_from_errno("imsg_create RAW_OBJECT");
293 if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1)
294 return got_error_from_errno("imsg_add RAW_OBJECT");
296 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
297 if (imsg_add(wbuf, data, size + hdrlen) == -1)
298 return got_error_from_errno("imsg_add RAW_OBJECT");
301 imsg_close(ibuf, wbuf);
302 return flush_imsg(ibuf);
305 const struct got_error *
306 got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen,
307 struct imsgbuf *ibuf)
309 const struct got_error *err = NULL;
311 struct got_imsg_raw_obj *iobj;
316 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
320 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
322 switch (imsg.hdr.type) {
323 case GOT_IMSG_RAW_OBJECT:
324 if (datalen < sizeof(*iobj)) {
325 err = got_error(GOT_ERR_PRIVSEP_LEN);
330 *hdrlen = iobj->hdrlen;
332 if (datalen == sizeof(*iobj)) {
333 /* Data has been written to file descriptor. */
338 *size + *hdrlen > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
339 err = got_error(GOT_ERR_PRIVSEP_LEN);
343 *outbuf = malloc(*size + *hdrlen);
344 if (*outbuf == NULL) {
345 err = got_error_from_errno("malloc");
348 memcpy(*outbuf, imsg.data + sizeof(*iobj), *size + *hdrlen);
351 err = got_error(GOT_ERR_PRIVSEP_MSG);
360 const struct got_error *
361 got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
362 struct got_object_id *id, int pack_idx)
364 const struct got_error *err = NULL;
365 struct got_imsg_packed_object iobj;
369 memset(&iobj, 0, sizeof(iobj));
370 if (pack_idx != -1) { /* commit is packed */
372 memcpy(&iobj.id, id, sizeof(iobj.id));
380 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, data, len)
382 err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
387 return flush_imsg(ibuf);
390 const struct got_error *
391 got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
392 struct got_object_id *id, int pack_idx)
394 const struct got_error *err;
399 len = sizeof(struct got_imsg_packed_object);
403 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
405 err = got_error_from_errno("imsg_create TREE_REQUEST");
411 if (imsg_add(wbuf, id, sizeof(*id)) == -1) {
412 err = got_error_from_errno("imsg_add TREE_REQUEST");
418 if (pack_idx != -1) { /* tree is packed */
419 if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) {
420 err = got_error_from_errno("imsg_add TREE_REQUEST");
427 ibuf_fd_set(wbuf, fd);
428 imsg_close(ibuf, wbuf);
430 return flush_imsg(ibuf);
433 const struct got_error *
434 got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
435 struct got_object_id *id, int pack_idx)
437 const struct got_error *err;
438 struct got_imsg_packed_object iobj;
442 memset(&iobj, 0, sizeof(iobj));
443 if (pack_idx != -1) { /* tag is packed */
445 memcpy(&iobj.id, id, sizeof(iobj.id));
453 if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, data, len)
455 err = got_error_from_errno("imsg_compose TAG_REQUEST");
461 return flush_imsg(ibuf);
464 const struct got_error *
465 got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
466 struct got_object_id *id, int pack_idx)
468 const struct got_error *err = NULL;
469 struct got_imsg_packed_object iobj;
473 memset(&iobj, 0, sizeof(iobj));
474 if (pack_idx != -1) { /* blob is packed */
476 memcpy(&iobj.id, id, sizeof(iobj.id));
484 if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, data, len)
486 err = got_error_from_errno("imsg_compose BLOB_REQUEST");
491 return flush_imsg(ibuf);
494 const struct got_error *
495 got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
497 const struct got_error *err = NULL;
499 if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
501 err = got_error_from_errno("imsg_compose BLOB_OUTFD");
506 return flush_imsg(ibuf);
509 static const struct got_error *
510 send_fd(struct imsgbuf *ibuf, int imsg_code, int fd)
512 const struct got_error *err = NULL;
514 if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL, 0) == -1) {
515 err = got_error_from_errno("imsg_compose TMPFD");
520 return flush_imsg(ibuf);
523 const struct got_error *
524 got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
526 return send_fd(ibuf, GOT_IMSG_TMPFD, fd);
529 const struct got_error *
530 got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
532 struct got_imsg_object iobj;
534 memset(&iobj, 0, sizeof(iobj));
536 memcpy(&iobj.id, &obj->id, sizeof(iobj.id));
537 iobj.type = obj->type;
538 iobj.flags = obj->flags;
539 iobj.hdrlen = obj->hdrlen;
540 iobj.size = obj->size;
541 if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
542 iobj.pack_offset = obj->pack_offset;
543 iobj.pack_idx = obj->pack_idx;
546 if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
548 return got_error_from_errno("imsg_compose OBJECT");
550 return flush_imsg(ibuf);
553 const struct got_error *
554 got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd,
555 struct got_pathlist_head *have_refs, int fetch_all_branches,
556 struct got_pathlist_head *wanted_branches,
557 struct got_pathlist_head *wanted_refs, int list_refs_only,
558 const char *worktree_branch, const char *remote_head,
559 int no_head, int verbosity)
561 const struct got_error *err = NULL;
563 struct got_pathlist_entry *pe;
564 struct got_imsg_fetch_request fetchreq;
565 size_t remote_head_len, worktree_branch_len, len = sizeof(fetchreq);
567 if (worktree_branch) {
568 worktree_branch_len = strlen(worktree_branch);
569 len += worktree_branch_len;
572 remote_head_len = strlen(remote_head);
573 len += remote_head_len;
576 if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
578 return got_error(GOT_ERR_NO_SPACE);
581 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, len);
583 err = got_error_from_errno("imsg_create FETCH_HAVE_REF");
588 memset(&fetchreq, 0, sizeof(fetchreq));
589 fetchreq.no_head = no_head;
590 fetchreq.fetch_all_branches = fetch_all_branches;
591 fetchreq.list_refs_only = list_refs_only;
592 fetchreq.verbosity = verbosity;
593 if (worktree_branch != NULL)
594 fetchreq.worktree_branch_len = worktree_branch_len;
595 if (remote_head != NULL)
596 fetchreq.remote_head_len = remote_head_len;
597 TAILQ_FOREACH(pe, have_refs, entry)
598 fetchreq.n_have_refs++;
599 TAILQ_FOREACH(pe, wanted_branches, entry)
600 fetchreq.n_wanted_branches++;
601 TAILQ_FOREACH(pe, wanted_refs, entry)
602 fetchreq.n_wanted_refs++;
603 if (imsg_add(wbuf, &fetchreq, sizeof(fetchreq)) == -1)
604 return got_error_from_errno("imsg_add FETCH_REQUEST");
605 if (worktree_branch) {
606 if (imsg_add(wbuf, worktree_branch, worktree_branch_len)
608 err = got_error_from_errno("imsg_add FETCH_REQUEST");
614 if (imsg_add(wbuf, remote_head, remote_head_len) == -1) {
615 err = got_error_from_errno("imsg_add FETCH_REQUEST");
620 ibuf_fd_set(wbuf, fd);
622 imsg_close(ibuf, wbuf);
624 err = flush_imsg(ibuf);
628 TAILQ_FOREACH(pe, have_refs, entry) {
629 const char *name = pe->path;
630 size_t name_len = pe->path_len;
631 struct got_object_id *id = pe->data;
633 len = sizeof(struct got_imsg_fetch_have_ref) + name_len;
634 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len);
636 return got_error_from_errno("imsg_create FETCH_HAVE_REF");
638 /* Keep in sync with struct got_imsg_fetch_have_ref! */
639 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
640 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
641 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
642 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
643 if (imsg_add(wbuf, name, name_len) == -1)
644 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
646 imsg_close(ibuf, wbuf);
647 err = flush_imsg(ibuf);
652 TAILQ_FOREACH(pe, wanted_branches, entry) {
653 const char *name = pe->path;
654 size_t name_len = pe->path_len;
656 len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len;
657 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0,
660 return got_error_from_errno(
661 "imsg_create FETCH_WANTED_BRANCH");
663 /* Keep in sync with struct got_imsg_fetch_wanted_branch! */
664 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
665 return got_error_from_errno(
666 "imsg_add FETCH_WANTED_BRANCH");
667 if (imsg_add(wbuf, name, name_len) == -1)
668 return got_error_from_errno(
669 "imsg_add FETCH_WANTED_BRANCH");
671 imsg_close(ibuf, wbuf);
672 err = flush_imsg(ibuf);
677 TAILQ_FOREACH(pe, wanted_refs, entry) {
678 const char *name = pe->path;
679 size_t name_len = pe->path_len;
681 len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len;
682 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0,
685 return got_error_from_errno(
686 "imsg_create FETCH_WANTED_REF");
688 /* Keep in sync with struct got_imsg_fetch_wanted_ref! */
689 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
690 return got_error_from_errno(
691 "imsg_add FETCH_WANTED_REF");
692 if (imsg_add(wbuf, name, name_len) == -1)
693 return got_error_from_errno(
694 "imsg_add FETCH_WANTED_REF");
696 imsg_close(ibuf, wbuf);
697 err = flush_imsg(ibuf);
705 const struct got_error *
706 got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd)
708 return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd);
711 const struct got_error *
712 got_privsep_recv_fetch_progress(int *done, struct got_object_id **id,
713 char **refname, struct got_pathlist_head *symrefs, char **server_progress,
714 off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf)
716 const struct got_error *err = NULL;
719 struct got_imsg_fetch_symrefs *isymrefs = NULL;
727 *server_progress = NULL;
729 memset(pack_sha1, 0, SHA1_DIGEST_LENGTH);
731 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
735 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
736 switch (imsg.hdr.type) {
737 case GOT_IMSG_FETCH_SYMREFS:
738 if (datalen < sizeof(*isymrefs)) {
739 err = got_error(GOT_ERR_PRIVSEP_LEN);
742 if (isymrefs != NULL) {
743 err = got_error(GOT_ERR_PRIVSEP_MSG);
746 isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data;
747 off = sizeof(*isymrefs);
748 remain = datalen - off;
749 for (n = 0; n < isymrefs->nsymrefs; n++) {
750 struct got_imsg_fetch_symref *s;
752 if (remain < sizeof(struct got_imsg_fetch_symref)) {
753 err = got_error(GOT_ERR_PRIVSEP_LEN);
756 s = (struct got_imsg_fetch_symref *)(imsg.data + off);
758 remain -= sizeof(*s);
759 if (remain < s->name_len) {
760 err = got_error(GOT_ERR_PRIVSEP_LEN);
763 name = strndup(imsg.data + off, s->name_len);
765 err = got_error_from_errno("strndup");
769 remain -= s->name_len;
770 if (remain < s->target_len) {
771 err = got_error(GOT_ERR_PRIVSEP_LEN);
775 target = strndup(imsg.data + off, s->target_len);
776 if (target == NULL) {
777 err = got_error_from_errno("strndup");
781 off += s->target_len;
782 remain -= s->target_len;
783 err = got_pathlist_append(symrefs, name, target);
791 case GOT_IMSG_FETCH_REF:
792 if (datalen <= sizeof(**id)) {
793 err = got_error(GOT_ERR_PRIVSEP_MSG);
796 *id = malloc(sizeof(**id));
798 err = got_error_from_errno("malloc");
801 memcpy(*id, imsg.data, sizeof(**id));
802 *refname = strndup(imsg.data + sizeof(**id),
803 datalen - sizeof(**id));
804 if (*refname == NULL) {
805 err = got_error_from_errno("strndup");
809 case GOT_IMSG_FETCH_SERVER_PROGRESS:
811 err = got_error(GOT_ERR_PRIVSEP_LEN);
814 *server_progress = strndup(imsg.data, datalen);
815 if (*server_progress == NULL) {
816 err = got_error_from_errno("strndup");
819 for (i = 0; i < datalen; i++) {
820 if (!isprint((unsigned char)(*server_progress)[i]) &&
821 !isspace((unsigned char)(*server_progress)[i])) {
822 err = got_error(GOT_ERR_PRIVSEP_MSG);
823 free(*server_progress);
824 *server_progress = NULL;
829 case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS:
830 if (datalen < sizeof(*packfile_size)) {
831 err = got_error(GOT_ERR_PRIVSEP_MSG);
834 memcpy(packfile_size, imsg.data, sizeof(*packfile_size));
836 case GOT_IMSG_FETCH_DONE:
837 if (datalen != SHA1_DIGEST_LENGTH) {
838 err = got_error(GOT_ERR_PRIVSEP_MSG);
841 memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH);
845 err = got_error(GOT_ERR_PRIVSEP_MSG);
859 static const struct got_error *
860 send_send_ref(const char *name, size_t name_len, struct got_object_id *id,
861 int delete, struct imsgbuf *ibuf)
866 len = sizeof(struct got_imsg_send_ref) + name_len;
867 wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF, 0, 0, len);
869 return got_error_from_errno("imsg_create SEND_REF");
871 /* Keep in sync with struct got_imsg_send_ref! */
872 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
873 return got_error_from_errno("imsg_add SEND_REF");
874 if (imsg_add(wbuf, &delete, sizeof(delete)) == -1)
875 return got_error_from_errno("imsg_add SEND_REF");
876 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
877 return got_error_from_errno("imsg_add SEND_REF");
878 if (imsg_add(wbuf, name, name_len) == -1)
879 return got_error_from_errno("imsg_add SEND_REF");
881 imsg_close(ibuf, wbuf);
882 return flush_imsg(ibuf);
885 const struct got_error *
886 got_privsep_send_send_req(struct imsgbuf *ibuf, int fd,
887 struct got_pathlist_head *have_refs,
888 struct got_pathlist_head *delete_refs,
891 const struct got_error *err = NULL;
892 struct got_pathlist_entry *pe;
893 struct got_imsg_send_request sendreq;
894 struct got_object_id zero_id;
896 memset(&zero_id, 0, sizeof(zero_id));
897 memset(&sendreq, 0, sizeof(sendreq));
898 sendreq.verbosity = verbosity;
899 TAILQ_FOREACH(pe, have_refs, entry)
901 TAILQ_FOREACH(pe, delete_refs, entry)
903 if (imsg_compose(ibuf, GOT_IMSG_SEND_REQUEST, 0, 0, fd,
904 &sendreq, sizeof(sendreq)) == -1) {
905 err = got_error_from_errno(
906 "imsg_compose FETCH_SERVER_PROGRESS");
911 err = flush_imsg(ibuf);
915 TAILQ_FOREACH(pe, have_refs, entry) {
916 const char *name = pe->path;
917 size_t name_len = pe->path_len;
918 struct got_object_id *id = pe->data;
919 err = send_send_ref(name, name_len, id, 0, ibuf);
924 TAILQ_FOREACH(pe, delete_refs, entry) {
925 const char *name = pe->path;
926 size_t name_len = pe->path_len;
927 err = send_send_ref(name, name_len, &zero_id, 1, ibuf);
932 if (fd != -1 && close(fd) == -1 && err == NULL)
933 err = got_error_from_errno("close");
937 const struct got_error *
938 got_privsep_recv_send_remote_refs(struct got_pathlist_head *remote_refs,
939 struct imsgbuf *ibuf)
941 const struct got_error *err = NULL;
945 struct got_imsg_send_remote_ref iremote_ref;
946 struct got_object_id *id = NULL;
947 char *refname = NULL;
948 struct got_pathlist_entry *new;
951 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
954 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
955 switch (imsg.hdr.type) {
956 case GOT_IMSG_SEND_REMOTE_REF:
957 if (datalen < sizeof(iremote_ref)) {
958 err = got_error(GOT_ERR_PRIVSEP_MSG);
961 memcpy(&iremote_ref, imsg.data, sizeof(iremote_ref));
962 if (datalen != sizeof(iremote_ref) +
963 iremote_ref.name_len) {
964 err = got_error(GOT_ERR_PRIVSEP_MSG);
967 id = malloc(sizeof(*id));
969 err = got_error_from_errno("malloc");
972 memcpy(id, &iremote_ref.id, sizeof(*id));
973 refname = strndup(imsg.data + sizeof(iremote_ref),
974 datalen - sizeof(iremote_ref));
975 if (refname == NULL) {
976 err = got_error_from_errno("strndup");
979 err = got_pathlist_insert(&new, remote_refs,
983 if (new == NULL) { /* duplicate which wasn't inserted */
990 case GOT_IMSG_SEND_PACK_REQUEST:
992 err = got_error(GOT_ERR_PRIVSEP_MSG);
995 /* got-send-pack is now waiting for a pack file. */
999 err = got_error(GOT_ERR_PRIVSEP_MSG);
1010 const struct got_error *
1011 got_privsep_send_packfd(struct imsgbuf *ibuf, int fd)
1013 return send_fd(ibuf, GOT_IMSG_SEND_PACKFD, fd);
1016 const struct got_error *
1017 got_privsep_recv_send_progress(int *done, off_t *bytes_sent,
1018 int *success, char **refname, char **errmsg, struct imsgbuf *ibuf)
1020 const struct got_error *err = NULL;
1023 struct got_imsg_send_ref_status iref_status;
1025 /* Do not reset the current value of 'bytes_sent', it accumulates. */
1031 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1035 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1036 switch (imsg.hdr.type) {
1037 case GOT_IMSG_SEND_UPLOAD_PROGRESS:
1038 if (datalen < sizeof(*bytes_sent)) {
1039 err = got_error(GOT_ERR_PRIVSEP_MSG);
1042 memcpy(bytes_sent, imsg.data, sizeof(*bytes_sent));
1044 case GOT_IMSG_SEND_REF_STATUS:
1045 if (datalen < sizeof(iref_status)) {
1046 err = got_error(GOT_ERR_PRIVSEP_MSG);
1049 memcpy(&iref_status, imsg.data, sizeof(iref_status));
1050 if (datalen != sizeof(iref_status) + iref_status.name_len +
1051 iref_status.errmsg_len) {
1052 err = got_error(GOT_ERR_PRIVSEP_MSG);
1055 *success = iref_status.success;
1056 *refname = strndup(imsg.data + sizeof(iref_status),
1057 iref_status.name_len);
1059 if (iref_status.errmsg_len != 0)
1060 *errmsg = strndup(imsg.data + sizeof(iref_status) +
1061 iref_status.name_len, iref_status.errmsg_len);
1063 case GOT_IMSG_SEND_DONE:
1065 err = got_error(GOT_ERR_PRIVSEP_MSG);
1071 err = got_error(GOT_ERR_PRIVSEP_MSG);
1079 const struct got_error *
1080 got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1,
1083 const struct got_error *err = NULL;
1085 /* Keep in sync with struct got_imsg_index_pack_request */
1086 if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd,
1087 pack_sha1, SHA1_DIGEST_LENGTH) == -1) {
1088 err = got_error_from_errno("imsg_compose INDEX_REQUEST");
1092 return flush_imsg(ibuf);
1095 const struct got_error *
1096 got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd)
1098 return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd);
1101 const struct got_error *
1102 got_privsep_recv_index_progress(int *done, int *nobj_total,
1103 int *nobj_indexed, int *nobj_loose, int *nobj_resolved,
1104 struct imsgbuf *ibuf)
1106 const struct got_error *err = NULL;
1108 struct got_imsg_index_pack_progress *iprogress;
1116 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1120 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1121 switch (imsg.hdr.type) {
1122 case GOT_IMSG_IDXPACK_PROGRESS:
1123 if (datalen < sizeof(*iprogress)) {
1124 err = got_error(GOT_ERR_PRIVSEP_LEN);
1127 iprogress = (struct got_imsg_index_pack_progress *)imsg.data;
1128 if (iprogress->nobj_total < 0 || iprogress->nobj_indexed < 0 ||
1129 iprogress->nobj_loose < 0 || iprogress->nobj_resolved < 0) {
1130 err = got_error(GOT_ERR_RANGE);
1133 *nobj_total = iprogress->nobj_total;
1134 *nobj_indexed = iprogress->nobj_indexed;
1135 *nobj_loose = iprogress->nobj_loose;
1136 *nobj_resolved = iprogress->nobj_resolved;
1138 case GOT_IMSG_IDXPACK_DONE:
1140 err = got_error(GOT_ERR_PRIVSEP_LEN);
1146 err = got_error(GOT_ERR_PRIVSEP_MSG);
1154 const struct got_error *
1155 got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
1156 struct imsgbuf *ibuf)
1158 struct got_imsg_object *iobj;
1159 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1161 if (datalen != sizeof(*iobj))
1162 return got_error(GOT_ERR_PRIVSEP_LEN);
1165 if (iobj->pack_offset < 0)
1166 return got_error(GOT_ERR_PACK_OFFSET);
1168 *obj = calloc(1, sizeof(**obj));
1170 return got_error_from_errno("calloc");
1172 memcpy(&(*obj)->id, &iobj->id, sizeof(iobj->id));
1173 (*obj)->type = iobj->type;
1174 (*obj)->flags = iobj->flags;
1175 (*obj)->hdrlen = iobj->hdrlen;
1176 (*obj)->size = iobj->size;
1177 /* path_packfile is handled by caller */
1178 if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
1179 (*obj)->pack_offset = iobj->pack_offset;
1180 (*obj)->pack_idx = iobj->pack_idx;
1182 STAILQ_INIT(&(*obj)->deltas.entries);
1186 const struct got_error *
1187 got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
1189 const struct got_error *err = NULL;
1191 const size_t min_datalen = sizeof(struct got_imsg_object);
1195 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1199 switch (imsg.hdr.type) {
1200 case GOT_IMSG_OBJECT:
1201 err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
1204 err = got_error(GOT_ERR_PRIVSEP_MSG);
1213 static const struct got_error *
1214 send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
1217 const struct got_error *err = NULL;
1218 size_t offset, remain;
1221 remain = logmsg_len;
1222 while (remain > 0) {
1223 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1225 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
1226 commit->logmsg + offset, n) == -1) {
1227 err = got_error_from_errno("imsg_compose "
1232 err = flush_imsg(ibuf);
1243 const struct got_error *
1244 got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
1246 const struct got_error *err = NULL;
1247 struct got_imsg_commit_object *icommit;
1250 struct got_object_qid *qid;
1251 size_t author_len = strlen(commit->author);
1252 size_t committer_len = strlen(commit->committer);
1253 size_t logmsg_len = strlen(commit->logmsg);
1255 total = sizeof(*icommit) + author_len + committer_len +
1256 commit->nparents * sizeof(struct got_object_id);
1258 buf = malloc(total);
1260 return got_error_from_errno("malloc");
1262 icommit = (struct got_imsg_commit_object *)buf;
1263 memcpy(&icommit->tree_id, commit->tree_id, sizeof(icommit->tree_id));
1264 icommit->author_len = author_len;
1265 icommit->author_time = commit->author_time;
1266 icommit->author_gmtoff = commit->author_gmtoff;
1267 icommit->committer_len = committer_len;
1268 icommit->committer_time = commit->committer_time;
1269 icommit->committer_gmtoff = commit->committer_gmtoff;
1270 icommit->logmsg_len = logmsg_len;
1271 icommit->nparents = commit->nparents;
1273 len = sizeof(*icommit);
1274 memcpy(buf + len, commit->author, author_len);
1276 memcpy(buf + len, commit->committer, committer_len);
1277 len += committer_len;
1278 STAILQ_FOREACH(qid, &commit->parent_ids, entry) {
1279 memcpy(buf + len, &qid->id, sizeof(qid->id));
1280 len += sizeof(qid->id);
1283 if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
1284 err = got_error_from_errno("imsg_compose COMMIT");
1288 if (logmsg_len == 0 ||
1289 logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1290 err = flush_imsg(ibuf);
1294 err = send_commit_logmsg(ibuf, commit, logmsg_len);
1300 static const struct got_error *
1301 get_commit_from_imsg(struct got_commit_object **commit,
1302 struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf)
1304 const struct got_error *err = NULL;
1305 struct got_imsg_commit_object *icommit;
1309 if (datalen < sizeof(*icommit))
1310 return got_error(GOT_ERR_PRIVSEP_LEN);
1312 icommit = imsg->data;
1313 if (datalen != sizeof(*icommit) + icommit->author_len +
1314 icommit->committer_len +
1315 icommit->nparents * sizeof(struct got_object_id))
1316 return got_error(GOT_ERR_PRIVSEP_LEN);
1318 if (icommit->nparents < 0)
1319 return got_error(GOT_ERR_PRIVSEP_LEN);
1321 len += sizeof(*icommit);
1323 *commit = got_object_commit_alloc_partial();
1324 if (*commit == NULL)
1325 return got_error_from_errno(
1326 "got_object_commit_alloc_partial");
1328 memcpy((*commit)->tree_id, &icommit->tree_id,
1329 sizeof(icommit->tree_id));
1330 (*commit)->author_time = icommit->author_time;
1331 (*commit)->author_gmtoff = icommit->author_gmtoff;
1332 (*commit)->committer_time = icommit->committer_time;
1333 (*commit)->committer_gmtoff = icommit->committer_gmtoff;
1335 (*commit)->author = strndup(imsg->data + len, icommit->author_len);
1336 if ((*commit)->author == NULL) {
1337 err = got_error_from_errno("strndup");
1340 len += icommit->author_len;
1342 (*commit)->committer = strndup(imsg->data + len,
1343 icommit->committer_len);
1344 if ((*commit)->committer == NULL) {
1345 err = got_error_from_errno("strndup");
1348 len += icommit->committer_len;
1350 if (icommit->logmsg_len == 0) {
1351 (*commit)->logmsg = strdup("");
1352 if ((*commit)->logmsg == NULL) {
1353 err = got_error_from_errno("strdup");
1357 size_t offset = 0, remain = icommit->logmsg_len;
1359 (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
1360 if ((*commit)->logmsg == NULL) {
1361 err = got_error_from_errno("malloc");
1364 while (remain > 0) {
1365 struct imsg imsg_log;
1366 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1369 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1373 if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) {
1374 err = got_error(GOT_ERR_PRIVSEP_MSG);
1378 memcpy((*commit)->logmsg + offset,
1380 imsg_free(&imsg_log);
1384 (*commit)->logmsg[icommit->logmsg_len] = '\0';
1387 for (i = 0; i < icommit->nparents; i++) {
1388 struct got_object_qid *qid;
1390 err = got_object_qid_alloc_partial(&qid);
1393 memcpy(&qid->id, imsg->data + len +
1394 i * sizeof(qid->id), sizeof(qid->id));
1395 STAILQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
1396 (*commit)->nparents++;
1400 got_object_commit_close(*commit);
1406 const struct got_error *
1407 got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
1409 const struct got_error *err = NULL;
1412 const size_t min_datalen = sizeof(struct got_imsg_commit_object);
1416 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1420 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1422 switch (imsg.hdr.type) {
1423 case GOT_IMSG_COMMIT:
1424 err = get_commit_from_imsg(commit, &imsg, datalen, ibuf);
1427 err = got_error(GOT_ERR_PRIVSEP_MSG);
1436 static const struct got_error *
1437 send_tree_entries_batch(struct imsgbuf *ibuf,
1438 struct got_parsed_tree_entry *entries, int idx0, int idxN, size_t len)
1441 struct got_imsg_tree_entries ientries;
1444 memset(&ientries, 0, sizeof(ientries));
1446 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRIES, 0, 0, len);
1448 return got_error_from_errno("imsg_create TREE_ENTRY");
1450 ientries.nentries = idxN - idx0 + 1;
1451 if (imsg_add(wbuf, &ientries, sizeof(ientries)) == -1)
1452 return got_error_from_errno("imsg_add TREE_ENTRY");
1454 for (i = idx0; i <= idxN; i++) {
1455 struct got_parsed_tree_entry *pte = &entries[i];
1457 /* Keep in sync with struct got_imsg_tree_entry definition! */
1458 if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1)
1459 return got_error_from_errno("imsg_add TREE_ENTRY");
1460 if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1)
1461 return got_error_from_errno("imsg_add TREE_ENTRY");
1462 if (imsg_add(wbuf, &pte->namelen, sizeof(pte->namelen)) == -1)
1463 return got_error_from_errno("imsg_add TREE_ENTRY");
1465 /* Remaining bytes are the entry's name. */
1466 if (imsg_add(wbuf, pte->name, pte->namelen) == -1)
1467 return got_error_from_errno("imsg_add TREE_ENTRY");
1470 imsg_close(ibuf, wbuf);
1474 static const struct got_error *
1475 send_tree_entries(struct imsgbuf *ibuf, struct got_parsed_tree_entry *entries,
1478 const struct got_error *err = NULL;
1480 size_t entries_len = sizeof(struct got_imsg_tree_entries);
1483 for (j = 0; j < nentries; j++) {
1484 struct got_parsed_tree_entry *pte = &entries[j];
1485 size_t len = sizeof(struct got_imsg_tree_entry) + pte->namelen;
1488 entries_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1489 err = send_tree_entries_batch(ibuf, entries,
1490 i, j - 1, entries_len);
1494 entries_len = sizeof(struct got_imsg_tree_entries);
1501 err = send_tree_entries_batch(ibuf, entries, i, j - 1,
1510 const struct got_error *
1511 got_privsep_send_tree(struct imsgbuf *ibuf,
1512 struct got_parsed_tree_entry *entries, int nentries)
1514 const struct got_error *err = NULL;
1515 struct got_imsg_tree_object itree;
1517 memset(&itree, 0, sizeof(itree));
1518 itree.nentries = nentries;
1519 if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
1521 return got_error_from_errno("imsg_compose TREE");
1523 err = send_tree_entries(ibuf, entries, nentries);
1527 return flush_imsg(ibuf);
1531 static const struct got_error *
1532 recv_tree_entries(void *data, size_t datalen, struct got_tree_object *tree,
1535 const struct got_error *err = NULL;
1536 struct got_imsg_tree_entries *ientries;
1537 struct got_tree_entry *te;
1541 if (datalen <= sizeof(*ientries) ||
1542 datalen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
1543 return got_error(GOT_ERR_PRIVSEP_LEN);
1545 ientries = (struct got_imsg_tree_entries *)data;
1546 if (ientries->nentries > INT_MAX) {
1547 return got_error_msg(GOT_ERR_NO_SPACE,
1548 "too many tree entries");
1551 te_offset = sizeof(*ientries);
1552 for (i = 0; i < ientries->nentries; i++) {
1553 struct got_imsg_tree_entry ite;
1554 const char *te_name;
1555 uint8_t *buf = (uint8_t *)data + te_offset;
1557 if (te_offset >= datalen) {
1558 err = got_error(GOT_ERR_PRIVSEP_LEN);
1562 /* Might not be aligned, size is ~32 bytes. */
1563 memcpy(&ite, buf, sizeof(ite));
1565 if (ite.namelen >= sizeof(te->name)) {
1566 err = got_error(GOT_ERR_PRIVSEP_LEN);
1569 if (te_offset + sizeof(ite) + ite.namelen > datalen) {
1570 err = got_error(GOT_ERR_PRIVSEP_LEN);
1574 if (*nentries >= tree->nentries) {
1575 err = got_error(GOT_ERR_PRIVSEP_LEN);
1578 te = &tree->entries[*nentries];
1579 te_name = buf + sizeof(ite);
1580 memcpy(te->name, te_name, ite.namelen);
1581 te->name[ite.namelen] = '\0';
1582 memcpy(te->id.sha1, ite.id, SHA1_DIGEST_LENGTH);
1583 te->mode = ite.mode;
1584 te->idx = *nentries;
1587 te_offset += sizeof(ite) + ite.namelen;
1593 const struct got_error *
1594 got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
1596 const struct got_error *err = NULL;
1597 const size_t min_datalen = sizeof(struct got_imsg_tree_object);
1598 struct got_imsg_tree_object *itree;
1603 while (*tree == NULL || nentries < (*tree)->nentries) {
1607 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1611 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1613 switch (imsg.hdr.type) {
1615 /* This message should only appear once. */
1616 if (*tree != NULL) {
1617 err = got_error(GOT_ERR_PRIVSEP_MSG);
1620 if (datalen != sizeof(*itree)) {
1621 err = got_error(GOT_ERR_PRIVSEP_LEN);
1625 if (itree->nentries < 0) {
1626 err = got_error(GOT_ERR_PRIVSEP_LEN);
1629 *tree = malloc(sizeof(**tree));
1630 if (*tree == NULL) {
1631 err = got_error_from_errno("malloc");
1634 (*tree)->entries = calloc(itree->nentries,
1635 sizeof(struct got_tree_entry));
1636 if ((*tree)->entries == NULL) {
1637 err = got_error_from_errno("malloc");
1642 (*tree)->nentries = itree->nentries;
1643 (*tree)->refcnt = 0;
1645 case GOT_IMSG_TREE_ENTRIES:
1646 /* This message should be preceeded by GOT_IMSG_TREE. */
1647 if (*tree == NULL) {
1648 err = got_error(GOT_ERR_PRIVSEP_MSG);
1651 err = recv_tree_entries(imsg.data, datalen,
1655 err = got_error(GOT_ERR_PRIVSEP_MSG);
1664 if (*tree && (*tree)->nentries != nentries) {
1666 err = got_error(GOT_ERR_PRIVSEP_LEN);
1667 got_object_tree_close(*tree);
1674 const struct got_error *
1675 got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
1676 const uint8_t *data)
1678 struct got_imsg_blob iblob;
1680 memset(&iblob, 0, sizeof(iblob));
1682 iblob.hdrlen = hdrlen;
1687 if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
1688 return got_error(GOT_ERR_NO_SPACE);
1690 buf = malloc(sizeof(iblob) + size);
1692 return got_error_from_errno("malloc");
1694 memcpy(buf, &iblob, sizeof(iblob));
1695 memcpy(buf + sizeof(iblob), data, size);
1696 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
1697 sizeof(iblob) + size) == -1) {
1699 return got_error_from_errno("imsg_compose BLOB");
1703 /* Data has already been written to file descriptor. */
1704 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
1705 sizeof(iblob)) == -1)
1706 return got_error_from_errno("imsg_compose BLOB");
1710 return flush_imsg(ibuf);
1713 const struct got_error *
1714 got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1715 struct imsgbuf *ibuf)
1717 const struct got_error *err = NULL;
1719 struct got_imsg_blob *iblob;
1724 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1728 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1730 switch (imsg.hdr.type) {
1732 if (datalen < sizeof(*iblob)) {
1733 err = got_error(GOT_ERR_PRIVSEP_LEN);
1737 *size = iblob->size;
1738 *hdrlen = iblob->hdrlen;
1740 if (datalen == sizeof(*iblob)) {
1741 /* Data has been written to file descriptor. */
1745 if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX ||
1746 *size > datalen + sizeof(*iblob)) {
1747 err = got_error(GOT_ERR_PRIVSEP_LEN);
1751 *outbuf = malloc(*size);
1752 if (*outbuf == NULL) {
1753 err = got_error_from_errno("malloc");
1756 memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
1759 err = got_error(GOT_ERR_PRIVSEP_MSG);
1768 static const struct got_error *
1769 send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
1771 const struct got_error *err = NULL;
1772 size_t offset, remain;
1775 remain = tagmsg_len;
1776 while (remain > 0) {
1777 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1779 if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
1780 tag->tagmsg + offset, n) == -1) {
1781 err = got_error_from_errno("imsg_compose TAG_TAGMSG");
1785 err = flush_imsg(ibuf);
1796 const struct got_error *
1797 got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1799 const struct got_error *err = NULL;
1800 struct got_imsg_tag_object *itag;
1803 size_t tag_len = strlen(tag->tag);
1804 size_t tagger_len = strlen(tag->tagger);
1805 size_t tagmsg_len = strlen(tag->tagmsg);
1807 total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1809 buf = malloc(total);
1811 return got_error_from_errno("malloc");
1813 itag = (struct got_imsg_tag_object *)buf;
1814 memcpy(&itag->id, &tag->id, sizeof(itag->id));
1815 itag->obj_type = tag->obj_type;
1816 itag->tag_len = tag_len;
1817 itag->tagger_len = tagger_len;
1818 itag->tagger_time = tag->tagger_time;
1819 itag->tagger_gmtoff = tag->tagger_gmtoff;
1820 itag->tagmsg_len = tagmsg_len;
1822 len = sizeof(*itag);
1823 memcpy(buf + len, tag->tag, tag_len);
1825 memcpy(buf + len, tag->tagger, tagger_len);
1828 if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1829 err = got_error_from_errno("imsg_compose TAG");
1833 if (tagmsg_len == 0 ||
1834 tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1835 err = flush_imsg(ibuf);
1839 err = send_tagmsg(ibuf, tag, tagmsg_len);
1845 const struct got_error *
1846 got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1848 const struct got_error *err = NULL;
1850 struct got_imsg_tag_object *itag;
1851 size_t len, datalen;
1852 const size_t min_datalen = sizeof(struct got_imsg_tag_object);
1856 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1860 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1863 switch (imsg.hdr.type) {
1865 if (datalen < sizeof(*itag)) {
1866 err = got_error(GOT_ERR_PRIVSEP_LEN);
1870 if (datalen != sizeof(*itag) + itag->tag_len +
1872 err = got_error(GOT_ERR_PRIVSEP_LEN);
1875 len += sizeof(*itag);
1877 *tag = calloc(1, sizeof(**tag));
1879 err = got_error_from_errno("calloc");
1883 memcpy(&(*tag)->id, &itag->id, sizeof(itag->id));
1885 (*tag)->tag = strndup(imsg.data + len, itag->tag_len);
1886 if ((*tag)->tag == NULL) {
1887 err = got_error_from_errno("strndup");
1890 len += itag->tag_len;
1892 (*tag)->obj_type = itag->obj_type;
1893 (*tag)->tagger_time = itag->tagger_time;
1894 (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1896 (*tag)->tagger = strndup(imsg.data + len, itag->tagger_len);
1897 if ((*tag)->tagger == NULL) {
1898 err = got_error_from_errno("strndup");
1901 len += itag->tagger_len;
1903 if (itag->tagmsg_len == 0) {
1904 (*tag)->tagmsg = strdup("");
1905 if ((*tag)->tagmsg == NULL) {
1906 err = got_error_from_errno("strdup");
1910 size_t offset = 0, remain = itag->tagmsg_len;
1912 (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1913 if ((*tag)->tagmsg == NULL) {
1914 err = got_error_from_errno("malloc");
1917 while (remain > 0) {
1918 struct imsg imsg_log;
1919 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1922 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1926 if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1927 return got_error(GOT_ERR_PRIVSEP_MSG);
1929 memcpy((*tag)->tagmsg + offset, imsg_log.data,
1931 imsg_free(&imsg_log);
1935 (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1940 err = got_error(GOT_ERR_PRIVSEP_MSG);
1949 const struct got_error *
1950 got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1951 struct got_packidx *packidx)
1953 const struct got_error *err = NULL;
1954 struct got_imsg_packidx ipackidx;
1955 struct got_imsg_pack ipack;
1958 memset(&ipackidx, 0, sizeof(ipackidx));
1959 memset(&ipack, 0, sizeof(ipack));
1961 ipackidx.len = packidx->len;
1962 ipackidx.packfile_size = pack->filesize;
1963 fd = dup(packidx->fd);
1965 return got_error_from_errno("dup");
1967 if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1968 sizeof(ipackidx)) == -1) {
1969 err = got_error_from_errno("imsg_compose PACKIDX");
1974 if (strlcpy(ipack.path_packfile, pack->path_packfile,
1975 sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1976 return got_error(GOT_ERR_NO_SPACE);
1977 ipack.filesize = pack->filesize;
1981 return got_error_from_errno("dup");
1983 if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
1985 err = got_error_from_errno("imsg_compose PACK");
1990 return flush_imsg(ibuf);
1993 const struct got_error *
1994 got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
1995 struct got_object_id *id)
1997 struct got_imsg_packed_object iobj;
1999 memset(&iobj, 0, sizeof(iobj));
2001 memcpy(&iobj.id, id, sizeof(iobj.id));
2003 if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
2004 &iobj, sizeof(iobj)) == -1)
2005 return got_error_from_errno("imsg_compose "
2006 "PACKED_OBJECT_REQUEST");
2008 return flush_imsg(ibuf);
2011 const struct got_error *
2012 got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx,
2013 struct got_object_id *id)
2015 struct got_imsg_packed_object iobj;
2017 memset(&iobj, 0, sizeof(iobj));
2019 memcpy(&iobj.id, id, sizeof(iobj.id));
2021 if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1,
2022 &iobj, sizeof(iobj)) == -1)
2023 return got_error_from_errno("imsg_compose "
2024 "PACKED_OBJECT_REQUEST");
2026 return flush_imsg(ibuf);
2029 const struct got_error *
2030 got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
2032 const struct got_error *err = NULL;
2034 if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
2036 err = got_error_from_errno("imsg_compose "
2037 "GITCONFIG_PARSE_REQUEST");
2042 return flush_imsg(ibuf);
2045 const struct got_error *
2046 got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
2048 if (imsg_compose(ibuf,
2049 GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
2051 return got_error_from_errno("imsg_compose "
2052 "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
2054 return flush_imsg(ibuf);
2057 const struct got_error *
2058 got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf)
2060 if (imsg_compose(ibuf,
2061 GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1,
2063 return got_error_from_errno("imsg_compose "
2064 "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST");
2066 return flush_imsg(ibuf);
2070 const struct got_error *
2071 got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
2073 if (imsg_compose(ibuf,
2074 GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
2075 return got_error_from_errno("imsg_compose "
2076 "GITCONFIG_AUTHOR_NAME_REQUEST");
2078 return flush_imsg(ibuf);
2081 const struct got_error *
2082 got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
2084 if (imsg_compose(ibuf,
2085 GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
2086 return got_error_from_errno("imsg_compose "
2087 "GITCONFIG_AUTHOR_EMAIL_REQUEST");
2089 return flush_imsg(ibuf);
2092 const struct got_error *
2093 got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
2095 if (imsg_compose(ibuf,
2096 GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2097 return got_error_from_errno("imsg_compose "
2098 "GITCONFIG_REMOTE_REQUEST");
2100 return flush_imsg(ibuf);
2103 const struct got_error *
2104 got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf)
2106 if (imsg_compose(ibuf,
2107 GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL, 0) == -1)
2108 return got_error_from_errno("imsg_compose "
2109 "GITCONFIG_OWNER_REQUEST");
2111 return flush_imsg(ibuf);
2114 const struct got_error *
2115 got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
2117 const struct got_error *err = NULL;
2123 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2126 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2128 switch (imsg.hdr.type) {
2129 case GOT_IMSG_GITCONFIG_STR_VAL:
2132 *str = strndup(imsg.data, datalen);
2134 err = got_error_from_errno("strndup");
2139 err = got_error(GOT_ERR_PRIVSEP_MSG);
2147 const struct got_error *
2148 got_privsep_recv_gitconfig_pair(char **key, char **val, struct imsgbuf *ibuf)
2150 const struct got_error *err = NULL;
2151 struct got_imsg_gitconfig_pair p;
2158 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2163 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2165 if (imsg.hdr.type != GOT_IMSG_GITCONFIG_PAIR) {
2166 err = got_error(GOT_ERR_PRIVSEP_MSG);
2170 if (datalen < sizeof(p)) {
2171 err = got_error(GOT_ERR_PRIVSEP_LEN);
2175 memcpy(&p, data, sizeof(p));
2178 if (datalen != sizeof(p) + p.klen + p.vlen) {
2179 err = got_error(GOT_ERR_PRIVSEP_LEN);
2183 *key = strndup(data, p.klen);
2185 err = got_error_from_errno("strndup");
2190 *val = strndup(data, p.vlen);
2192 err = got_error_from_errno("strndup");
2201 const struct got_error *
2202 got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
2204 const struct got_error *err = NULL;
2207 const size_t min_datalen = sizeof(int);
2211 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2214 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2216 switch (imsg.hdr.type) {
2217 case GOT_IMSG_GITCONFIG_INT_VAL:
2218 if (datalen != sizeof(*val)) {
2219 err = got_error(GOT_ERR_PRIVSEP_LEN);
2222 memcpy(val, imsg.data, sizeof(*val));
2225 err = got_error(GOT_ERR_PRIVSEP_MSG);
2234 free_remote_data(struct got_remote_repo *remote)
2239 free(remote->fetch_url);
2240 free(remote->send_url);
2241 for (i = 0; i < remote->nfetch_branches; i++)
2242 free(remote->fetch_branches[i]);
2243 free(remote->fetch_branches);
2244 for (i = 0; i < remote->nsend_branches; i++)
2245 free(remote->send_branches[i]);
2246 free(remote->send_branches);
2247 for (i = 0; i < remote->nfetch_refs; i++)
2248 free(remote->fetch_refs[i]);
2249 free(remote->fetch_refs);
2252 const struct got_error *
2253 got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
2254 int *nremotes, struct imsgbuf *ibuf)
2256 const struct got_error *err = NULL;
2259 struct got_imsg_remotes iremotes;
2260 struct got_imsg_remote iremote;
2264 iremotes.nremotes = 0;
2266 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
2269 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2271 switch (imsg.hdr.type) {
2272 case GOT_IMSG_GITCONFIG_REMOTES:
2273 if (datalen != sizeof(iremotes)) {
2275 return got_error(GOT_ERR_PRIVSEP_LEN);
2277 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2278 if (iremotes.nremotes == 0) {
2285 return got_error(GOT_ERR_PRIVSEP_MSG);
2290 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2291 if (*remotes == NULL)
2292 return got_error_from_errno("recallocarray");
2294 while (*nremotes < iremotes.nremotes) {
2295 struct got_remote_repo *remote;
2297 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
2300 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2302 switch (imsg.hdr.type) {
2303 case GOT_IMSG_GITCONFIG_REMOTE:
2304 remote = &(*remotes)[*nremotes];
2305 memset(remote, 0, sizeof(*remote));
2306 if (datalen < sizeof(iremote)) {
2307 err = got_error(GOT_ERR_PRIVSEP_LEN);
2310 memcpy(&iremote, imsg.data, sizeof(iremote));
2311 if (iremote.name_len == 0 ||
2312 iremote.fetch_url_len == 0 ||
2313 iremote.send_url_len == 0 ||
2314 (sizeof(iremote) + iremote.name_len +
2315 iremote.fetch_url_len + iremote.send_url_len) > datalen) {
2316 err = got_error(GOT_ERR_PRIVSEP_LEN);
2319 remote->name = strndup(imsg.data + sizeof(iremote),
2321 if (remote->name == NULL) {
2322 err = got_error_from_errno("strndup");
2325 remote->fetch_url = strndup(imsg.data + sizeof(iremote) +
2326 iremote.name_len, iremote.fetch_url_len);
2327 if (remote->fetch_url == NULL) {
2328 err = got_error_from_errno("strndup");
2329 free_remote_data(remote);
2332 remote->send_url = strndup(imsg.data + sizeof(iremote) +
2333 iremote.name_len + iremote.fetch_url_len,
2334 iremote.send_url_len);
2335 if (remote->send_url == NULL) {
2336 err = got_error_from_errno("strndup");
2337 free_remote_data(remote);
2340 remote->mirror_references = iremote.mirror_references;
2341 remote->fetch_all_branches = iremote.fetch_all_branches;
2342 remote->nfetch_branches = 0;
2343 remote->fetch_branches = NULL;
2344 remote->nsend_branches = 0;
2345 remote->send_branches = NULL;
2346 remote->nfetch_refs = 0;
2347 remote->fetch_refs = NULL;
2351 err = got_error(GOT_ERR_PRIVSEP_MSG);
2362 for (i = 0; i < *nremotes; i++)
2363 free_remote_data(&(*remotes)[i]);
2371 const struct got_error *
2372 got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd)
2374 const struct got_error *err = NULL;
2376 if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd,
2378 err = got_error_from_errno("imsg_compose "
2379 "GOTCONFIG_PARSE_REQUEST");
2384 return flush_imsg(ibuf);
2387 const struct got_error *
2388 got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf)
2390 if (imsg_compose(ibuf,
2391 GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL, 0) == -1)
2392 return got_error_from_errno("imsg_compose "
2393 "GOTCONFIG_AUTHOR_REQUEST");
2395 return flush_imsg(ibuf);
2398 const struct got_error *
2399 got_privsep_send_gotconfig_allowed_signers_req(struct imsgbuf *ibuf)
2401 if (imsg_compose(ibuf,
2402 GOT_IMSG_GOTCONFIG_ALLOWEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2403 return got_error_from_errno("imsg_compose "
2404 "GOTCONFIG_ALLOWEDSIGNERS_REQUEST");
2406 return flush_imsg(ibuf);
2409 const struct got_error *
2410 got_privsep_send_gotconfig_revoked_signers_req(struct imsgbuf *ibuf)
2412 if (imsg_compose(ibuf,
2413 GOT_IMSG_GOTCONFIG_REVOKEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2414 return got_error_from_errno("imsg_compose "
2415 "GOTCONFIG_REVOKEDSIGNERS_REQUEST");
2417 return flush_imsg(ibuf);
2420 const struct got_error *
2421 got_privsep_send_gotconfig_signer_id_req(struct imsgbuf *ibuf)
2423 if (imsg_compose(ibuf,
2424 GOT_IMSG_GOTCONFIG_SIGNERID_REQUEST, 0, 0, -1, NULL, 0) == -1)
2425 return got_error_from_errno("imsg_compose "
2426 "GOTCONFIG_SIGNERID_REQUEST");
2428 return flush_imsg(ibuf);
2431 const struct got_error *
2432 got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf)
2434 if (imsg_compose(ibuf,
2435 GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2436 return got_error_from_errno("imsg_compose "
2437 "GOTCONFIG_REMOTE_REQUEST");
2439 return flush_imsg(ibuf);
2442 const struct got_error *
2443 got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf)
2445 const struct got_error *err = NULL;
2451 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2454 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2456 switch (imsg.hdr.type) {
2457 case GOT_IMSG_GOTCONFIG_STR_VAL:
2460 *str = strndup(imsg.data, datalen);
2462 err = got_error_from_errno("strndup");
2467 err = got_error(GOT_ERR_PRIVSEP_MSG);
2475 const struct got_error *
2476 got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes,
2477 int *nremotes, struct imsgbuf *ibuf)
2479 const struct got_error *err = NULL;
2482 struct got_imsg_remotes iremotes;
2483 struct got_imsg_remote iremote;
2484 const size_t min_datalen = sizeof(iremotes);
2488 iremotes.nremotes = 0;
2490 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2493 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2495 switch (imsg.hdr.type) {
2496 case GOT_IMSG_GOTCONFIG_REMOTES:
2497 if (datalen != sizeof(iremotes)) {
2498 err = got_error(GOT_ERR_PRIVSEP_LEN);
2501 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2502 if (iremotes.nremotes < 0) {
2503 err = got_error(GOT_ERR_PRIVSEP_LEN);
2506 if (iremotes.nremotes == 0) {
2513 return got_error(GOT_ERR_PRIVSEP_MSG);
2518 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2519 if (*remotes == NULL)
2520 return got_error_from_errno("recallocarray");
2522 while (*nremotes < iremotes.nremotes) {
2523 struct got_remote_repo *remote;
2524 const size_t min_datalen = sizeof(iremote);
2527 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2530 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2532 switch (imsg.hdr.type) {
2533 case GOT_IMSG_GOTCONFIG_REMOTE:
2534 remote = &(*remotes)[*nremotes];
2535 memset(remote, 0, sizeof(*remote));
2536 if (datalen < sizeof(iremote)) {
2537 err = got_error(GOT_ERR_PRIVSEP_LEN);
2540 memcpy(&iremote, imsg.data, sizeof(iremote));
2541 if (iremote.name_len == 0 ||
2542 (iremote.fetch_url_len == 0 &&
2543 iremote.send_url_len == 0) ||
2544 (sizeof(iremote) + iremote.name_len +
2545 iremote.fetch_url_len + iremote.send_url_len) >
2547 err = got_error(GOT_ERR_PRIVSEP_LEN);
2550 remote->name = strndup(imsg.data + sizeof(iremote),
2552 if (remote->name == NULL) {
2553 err = got_error_from_errno("strndup");
2556 remote->fetch_url = strndup(imsg.data +
2557 sizeof(iremote) + iremote.name_len,
2558 iremote.fetch_url_len);
2559 if (remote->fetch_url == NULL) {
2560 err = got_error_from_errno("strndup");
2561 free_remote_data(remote);
2564 remote->send_url = strndup(imsg.data +
2565 sizeof(iremote) + iremote.name_len +
2566 iremote.fetch_url_len, iremote.send_url_len);
2567 if (remote->send_url == NULL) {
2568 err = got_error_from_errno("strndup");
2569 free_remote_data(remote);
2572 remote->mirror_references = iremote.mirror_references;
2573 remote->fetch_all_branches = iremote.fetch_all_branches;
2574 if (iremote.nfetch_branches > 0) {
2575 remote->fetch_branches = recallocarray(NULL, 0,
2576 iremote.nfetch_branches, sizeof(char *));
2577 if (remote->fetch_branches == NULL) {
2578 err = got_error_from_errno("calloc");
2579 free_remote_data(remote);
2583 remote->nfetch_branches = 0;
2584 for (i = 0; i < iremote.nfetch_branches; i++) {
2586 err = got_privsep_recv_gotconfig_str(&branch,
2589 free_remote_data(remote);
2592 remote->fetch_branches[i] = branch;
2593 remote->nfetch_branches++;
2595 if (iremote.nsend_branches > 0) {
2596 remote->send_branches = recallocarray(NULL, 0,
2597 iremote.nsend_branches, sizeof(char *));
2598 if (remote->send_branches == NULL) {
2599 err = got_error_from_errno("calloc");
2600 free_remote_data(remote);
2604 remote->nsend_branches = 0;
2605 for (i = 0; i < iremote.nsend_branches; i++) {
2607 err = got_privsep_recv_gotconfig_str(&branch,
2610 free_remote_data(remote);
2613 remote->send_branches[i] = branch;
2614 remote->nsend_branches++;
2616 if (iremote.nfetch_refs > 0) {
2617 remote->fetch_refs = recallocarray(NULL, 0,
2618 iremote.nfetch_refs, sizeof(char *));
2619 if (remote->fetch_refs == NULL) {
2620 err = got_error_from_errno("calloc");
2621 free_remote_data(remote);
2625 remote->nfetch_refs = 0;
2626 for (i = 0; i < iremote.nfetch_refs; i++) {
2628 err = got_privsep_recv_gotconfig_str(&ref,
2631 free_remote_data(remote);
2634 remote->fetch_refs[i] = ref;
2635 remote->nfetch_refs++;
2640 err = got_error(GOT_ERR_PRIVSEP_MSG);
2651 for (i = 0; i < *nremotes; i++)
2652 free_remote_data(&(*remotes)[i]);
2660 const struct got_error *
2661 got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf,
2662 struct got_object_id *id, int idx, const char *path)
2665 size_t path_len = strlen(path);
2667 wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0,
2668 sizeof(struct got_imsg_commit_traversal_request) + path_len);
2670 return got_error_from_errno(
2671 "imsg_create COMMIT_TRAVERSAL_REQUEST");
2673 * Keep in sync with struct got_imsg_commit_traversal_request
2674 * and struct got_imsg_packed_object.
2676 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
2677 return got_error_from_errno("imsg_add "
2678 "COMMIT_TRAVERSAL_REQUEST");
2679 if (imsg_add(wbuf, &idx, sizeof(idx)) == -1)
2680 return got_error_from_errno("imsg_add "
2681 "COMMIT_TRAVERSAL_REQUEST");
2682 if (imsg_add(wbuf, &path_len, sizeof(path_len)) == -1)
2683 return got_error_from_errno("imsg_add "
2684 "COMMIT_TRAVERSAL_REQUEST");
2685 if (imsg_add(wbuf, path, path_len) == -1)
2686 return got_error_from_errno("imsg_add "
2687 "COMMIT_TRAVERSAL_REQUEST");
2689 imsg_close(ibuf, wbuf);
2690 return flush_imsg(ibuf);
2693 const struct got_error *
2694 got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit,
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;
2707 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2711 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2712 switch (imsg.hdr.type) {
2713 case GOT_IMSG_TRAVERSED_COMMITS:
2714 icommits = imsg.data;
2715 if (datalen != sizeof(*icommits) +
2716 icommits->ncommits * sizeof(*ids)) {
2717 err = got_error(GOT_ERR_PRIVSEP_LEN);
2720 ids = imsg.data + sizeof(*icommits);
2721 for (i = 0; i < icommits->ncommits; i++) {
2722 struct got_object_qid *qid;
2724 err = got_object_qid_alloc_partial(&qid);
2727 memcpy(&qid->id, &ids[i], sizeof(ids[i]));
2728 STAILQ_INSERT_TAIL(commit_ids, qid, entry);
2732 case GOT_IMSG_COMMIT:
2733 err = get_commit_from_imsg(changed_commit, &imsg,
2736 case GOT_IMSG_COMMIT_TRAVERSAL_DONE:
2740 err = got_error(GOT_ERR_PRIVSEP_MSG);
2750 got_object_id_queue_free(commit_ids);
2754 const struct got_error *
2755 got_privsep_send_enumerated_tree(size_t *totlen, struct imsgbuf *ibuf,
2756 struct got_object_id *tree_id, const char *path,
2757 struct got_parsed_tree_entry *entries, int nentries)
2759 const struct got_error *err = NULL;
2761 size_t path_len = strlen(path);
2764 msglen = sizeof(struct got_imsg_enumerated_tree) + path_len;
2765 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_TREE, 0, 0, msglen);
2767 return got_error_from_errno("imsg_create ENUMERATED_TREE");
2769 if (imsg_add(wbuf, tree_id->sha1, SHA1_DIGEST_LENGTH) == -1)
2770 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2771 if (imsg_add(wbuf, &nentries, sizeof(nentries)) == -1)
2772 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2773 if (imsg_add(wbuf, path, path_len) == -1)
2774 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2776 imsg_close(ibuf, wbuf);
2779 err = send_tree_entries(ibuf, entries, nentries);
2784 return flush_imsg(ibuf);
2787 const struct got_error *
2788 got_privsep_send_object_enumeration_request(struct imsgbuf *ibuf)
2790 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_REQUEST,
2791 0, 0, -1, NULL, 0) == -1)
2792 return got_error_from_errno("imsg_compose "
2793 "OBJECT_ENUMERATION_REQUEST");
2795 return flush_imsg(ibuf);
2798 const struct got_error *
2799 got_privsep_send_object_enumeration_done(struct imsgbuf *ibuf)
2801 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_DONE,
2802 0, 0, -1, NULL, 0) == -1)
2803 return got_error_from_errno("imsg_compose "
2804 "OBJECT_ENUMERATION_DONE");
2806 return flush_imsg(ibuf);
2809 const struct got_error *
2810 got_privsep_send_object_enumeration_incomplete(struct imsgbuf *ibuf)
2812 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE,
2813 0, 0, -1, NULL, 0) == -1)
2814 return got_error_from_errno("imsg_compose "
2815 "OBJECT_ENUMERATION_INCOMPLETE");
2817 return flush_imsg(ibuf);
2820 const struct got_error *
2821 got_privsep_send_enumerated_commit(struct imsgbuf *ibuf,
2822 struct got_object_id *id, time_t mtime)
2826 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_COMMIT, 0, 0,
2827 sizeof(struct got_imsg_enumerated_commit) + SHA1_DIGEST_LENGTH);
2829 return got_error_from_errno("imsg_create ENUMERATED_COMMIT");
2831 /* Keep in sync with struct got_imsg_enumerated_commit! */
2832 if (imsg_add(wbuf, id, SHA1_DIGEST_LENGTH) == -1)
2833 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2834 if (imsg_add(wbuf, &mtime, sizeof(mtime)) == -1)
2835 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2837 imsg_close(ibuf, wbuf);
2838 /* Don't flush yet, tree entries or ENUMERATION_DONE will follow. */
2842 const struct got_error *
2843 got_privsep_recv_enumerated_objects(int *found_all_objects,
2844 struct imsgbuf *ibuf,
2845 got_object_enumerate_commit_cb cb_commit,
2846 got_object_enumerate_tree_cb cb_tree, void *cb_arg,
2847 struct got_repository *repo)
2849 const struct got_error *err = NULL;
2851 struct got_imsg_enumerated_commit *icommit = NULL;
2852 struct got_object_id commit_id;
2853 int have_commit = 0;
2855 struct got_tree_object tree;
2856 struct got_imsg_enumerated_tree *itree;
2857 struct got_object_id tree_id;
2858 char *path = NULL, *canon_path = NULL;
2859 size_t datalen, path_len;
2863 *found_all_objects = 0;
2864 memset(&tree, 0, sizeof(tree));
2867 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2871 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2872 switch (imsg.hdr.type) {
2873 case GOT_IMSG_ENUMERATED_COMMIT:
2874 if (have_commit && nentries != -1) {
2875 err = got_error(GOT_ERR_PRIVSEP_MSG);
2878 if (datalen != sizeof(*icommit)) {
2879 err = got_error(GOT_ERR_PRIVSEP_LEN);
2882 icommit = (struct got_imsg_enumerated_commit *)imsg.data;
2883 memcpy(commit_id.sha1, icommit->id, SHA1_DIGEST_LENGTH);
2884 mtime = icommit->mtime;
2887 case GOT_IMSG_ENUMERATED_TREE:
2888 /* Should be preceeded by GOT_IMSG_ENUMERATED_COMMIT. */
2890 err = got_error(GOT_ERR_PRIVSEP_MSG);
2893 if (datalen < sizeof(*itree)) {
2894 err = got_error(GOT_ERR_PRIVSEP_LEN);
2898 path_len = datalen - sizeof(*itree);
2899 if (path_len == 0) {
2900 err = got_error(GOT_ERR_PRIVSEP_LEN);
2903 memcpy(tree_id.sha1, itree->id, sizeof(tree_id.sha1));
2905 path = strndup(imsg.data + sizeof(*itree), path_len);
2907 err = got_error_from_errno("strndup");
2911 canon_path = malloc(path_len + 1);
2912 if (canon_path == NULL) {
2913 err = got_error_from_errno("malloc");
2916 if (!got_path_is_absolute(path)) {
2917 err = got_error(GOT_ERR_BAD_PATH);
2920 if (got_path_is_root_dir(path)) {
2921 /* XXX check what got_canonpath() does wrong */
2922 canon_path[0] = '/';
2923 canon_path[1] = '\0';
2925 err = got_canonpath(path, canon_path,
2930 if (strcmp(path, canon_path) != 0) {
2931 err = got_error(GOT_ERR_BAD_PATH);
2934 if (nentries != -1) {
2935 err = got_error(GOT_ERR_PRIVSEP_MSG);
2938 if (itree->nentries < -1) {
2939 err = got_error(GOT_ERR_PRIVSEP_MSG);
2942 if (itree->nentries == -1) {
2943 /* Tree was not found in pack file. */
2944 err = cb_tree(cb_arg, NULL, mtime, &tree_id,
2948 if (itree->nentries > INT_MAX) {
2949 err = got_error(GOT_ERR_PRIVSEP_LEN);
2952 tree.entries = calloc(itree->nentries,
2953 sizeof(struct got_tree_entry));
2954 if (tree.entries == NULL) {
2955 err = got_error_from_errno("calloc");
2958 if (itree->nentries == 0) {
2959 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2964 /* Prepare for next tree. */
2966 memset(&tree, 0, sizeof(tree));
2969 tree.nentries = itree->nentries;
2973 case GOT_IMSG_TREE_ENTRIES:
2974 /* Should be preceeded by GOT_IMSG_ENUMERATED_TREE. */
2975 if (nentries <= -1) {
2976 err = got_error(GOT_ERR_PRIVSEP_MSG);
2979 err = recv_tree_entries(imsg.data, datalen,
2983 if (tree.nentries == nentries) {
2984 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2989 /* Prepare for next tree. */
2991 memset(&tree, 0, sizeof(tree));
2995 case GOT_IMSG_TREE_ENUMERATION_DONE:
2996 /* All trees have been found and traversed. */
2997 if (!have_commit || path == NULL || nentries != -1) {
2998 err = got_error(GOT_ERR_PRIVSEP_MSG);
3001 err = cb_commit(cb_arg, mtime, &commit_id, repo);
3006 case GOT_IMSG_OBJECT_ENUMERATION_DONE:
3007 *found_all_objects = 1;
3010 case GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE:
3014 err = got_error(GOT_ERR_PRIVSEP_MSG);
3029 const struct got_error *
3030 got_privsep_send_raw_delta_req(struct imsgbuf *ibuf, int idx,
3031 struct got_object_id *id)
3033 struct got_imsg_raw_delta_request dreq;
3035 memset(&dreq, 0, sizeof(dreq));
3037 memcpy(&dreq.id, id, sizeof(dreq.id));
3039 if (imsg_compose(ibuf, GOT_IMSG_RAW_DELTA_REQUEST, 0, 0, -1,
3040 &dreq, sizeof(dreq)) == -1)
3041 return got_error_from_errno("imsg_compose RAW_DELTA_REQUEST");
3043 return flush_imsg(ibuf);
3046 const struct got_error *
3047 got_privsep_send_raw_delta_outfd(struct imsgbuf *ibuf, int fd)
3049 return send_fd(ibuf, GOT_IMSG_RAW_DELTA_OUTFD, fd);
3052 const struct got_error *
3053 got_privsep_send_raw_delta(struct imsgbuf *ibuf, uint64_t base_size,
3054 uint64_t result_size, off_t delta_size, off_t delta_compressed_size,
3055 off_t delta_offset, off_t delta_out_offset, struct got_object_id *base_id)
3057 struct got_imsg_raw_delta idelta;
3060 memset(&idelta, 0, sizeof(idelta));
3061 idelta.base_size = base_size;
3062 idelta.result_size = result_size;
3063 idelta.delta_size = delta_size;
3064 idelta.delta_compressed_size = delta_compressed_size;
3065 idelta.delta_offset = delta_offset;
3066 idelta.delta_out_offset = delta_out_offset;
3067 memcpy(&idelta.base_id, &base_id, sizeof(idelta.base_id));
3069 ret = imsg_compose(ibuf, GOT_IMSG_RAW_DELTA, 0, 0, -1,
3070 &idelta, sizeof(idelta));
3072 return got_error_from_errno("imsg_compose RAW_DELTA");
3074 return flush_imsg(ibuf);
3077 const struct got_error *
3078 got_privsep_recv_raw_delta(uint64_t *base_size, uint64_t *result_size,
3079 off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
3080 off_t *delta_out_offset, struct got_object_id **base_id,
3081 struct imsgbuf *ibuf)
3083 const struct got_error *err = NULL;
3085 struct got_imsg_raw_delta *delta;
3091 *delta_compressed_size = 0;
3093 *delta_out_offset = 0;
3096 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3100 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3102 switch (imsg.hdr.type) {
3103 case GOT_IMSG_RAW_DELTA:
3104 if (datalen != sizeof(*delta)) {
3105 err = got_error(GOT_ERR_PRIVSEP_LEN);
3109 *base_size = delta->base_size;
3110 *result_size = delta->result_size;
3111 *delta_size = delta->delta_size;
3112 *delta_compressed_size = delta->delta_compressed_size;
3113 *delta_offset = delta->delta_offset;
3114 *delta_out_offset = delta->delta_out_offset;
3115 *base_id = calloc(1, sizeof(**base_id));
3116 if (*base_id == NULL) {
3117 err = got_error_from_errno("malloc");
3120 memcpy(*base_id, &delta->base_id, sizeof(**base_id));
3123 err = got_error(GOT_ERR_PRIVSEP_MSG);
3136 static const struct got_error *
3137 send_idlist(struct imsgbuf *ibuf, struct got_object_id **ids, size_t nids)
3139 const struct got_error *err = NULL;
3140 struct got_imsg_object_idlist idlist;
3144 memset(&idlist, 0, sizeof(idlist));
3146 if (nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS)
3147 return got_error(GOT_ERR_NO_SPACE);
3149 wbuf = imsg_create(ibuf, GOT_IMSG_OBJ_ID_LIST, 0, 0,
3150 sizeof(idlist) + nids * sizeof(**ids));
3152 err = got_error_from_errno("imsg_create OBJ_ID_LIST");
3157 if (imsg_add(wbuf, &idlist, sizeof(idlist)) == -1)
3158 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3160 for (i = 0; i < nids; i++) {
3161 struct got_object_id *id = ids[i];
3162 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
3163 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3166 imsg_close(ibuf, wbuf);
3168 return flush_imsg(ibuf);
3171 const struct got_error *
3172 got_privsep_send_object_idlist(struct imsgbuf *ibuf,
3173 struct got_object_id **ids, size_t nids)
3175 const struct got_error *err = NULL;
3176 struct got_object_id *idlist[GOT_IMSG_OBJ_ID_LIST_MAX_NIDS];
3179 for (i = 0; i < nids; i++) {
3180 idlist[i % nitems(idlist)] = ids[i];
3182 if (queued >= nitems(idlist)) {
3183 err = send_idlist(ibuf, idlist, queued);
3191 err = send_idlist(ibuf, idlist, queued);
3199 const struct got_error *
3200 got_privsep_send_object_idlist_done(struct imsgbuf *ibuf)
3202 if (imsg_compose(ibuf, GOT_IMSG_OBJ_ID_LIST_DONE, 0, 0, -1, NULL, 0)
3204 return got_error_from_errno("imsg_compose OBJ_ID_LIST_DONE");
3206 return flush_imsg(ibuf);
3209 const struct got_error *
3210 got_privsep_recv_object_idlist(int *done, struct got_object_id **ids,
3211 size_t *nids, struct imsgbuf *ibuf)
3213 const struct got_error *err = NULL;
3215 struct got_imsg_object_idlist *idlist;
3222 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3226 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3227 switch (imsg.hdr.type) {
3228 case GOT_IMSG_OBJ_ID_LIST:
3229 if (datalen < sizeof(*idlist)) {
3230 err = got_error(GOT_ERR_PRIVSEP_LEN);
3234 if (idlist->nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3235 idlist->nids * sizeof(**ids) > datalen - sizeof(*idlist)) {
3236 err = got_error(GOT_ERR_PRIVSEP_LEN);
3239 *nids = idlist->nids;
3240 *ids = calloc(*nids, sizeof(**ids));
3242 err = got_error_from_errno("calloc");
3245 memcpy(*ids, (uint8_t *)imsg.data + sizeof(*idlist),
3246 *nids * sizeof(**ids));
3248 case GOT_IMSG_OBJ_ID_LIST_DONE:
3252 err = got_error(GOT_ERR_PRIVSEP_MSG);
3261 const struct got_error *
3262 got_privsep_send_delta_reuse_req(struct imsgbuf *ibuf)
3264 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_REQUEST, 0, 0, -1, NULL, 0)
3266 return got_error_from_errno("imsg_compose DELTA_REUSE_REQUEST");
3268 return flush_imsg(ibuf);
3271 const struct got_error *
3272 got_privsep_send_reused_deltas(struct imsgbuf *ibuf,
3273 struct got_imsg_reused_delta *deltas, size_t ndeltas)
3275 const struct got_error *err = NULL;
3277 struct got_imsg_reused_deltas ideltas;
3280 memset(&ideltas, 0, sizeof(ideltas));
3282 if (ndeltas > GOT_IMSG_REUSED_DELTAS_MAX_NDELTAS)
3283 return got_error(GOT_ERR_NO_SPACE);
3285 wbuf = imsg_create(ibuf, GOT_IMSG_REUSED_DELTAS, 0, 0,
3286 sizeof(ideltas) + ndeltas * sizeof(*deltas));
3288 err = got_error_from_errno("imsg_create REUSED_DELTAS");
3292 ideltas.ndeltas = ndeltas;
3293 if (imsg_add(wbuf, &ideltas, sizeof(ideltas)) == -1)
3294 return got_error_from_errno("imsg_add REUSED_DELTAS");
3296 for (i = 0; i < ndeltas; i++) {
3297 struct got_imsg_reused_delta *delta = &deltas[i];
3298 if (imsg_add(wbuf, delta, sizeof(*delta)) == -1)
3299 return got_error_from_errno("imsg_add REUSED_DELTAS");
3302 imsg_close(ibuf, wbuf);
3304 return flush_imsg(ibuf);
3307 const struct got_error *
3308 got_privsep_send_reused_deltas_done(struct imsgbuf *ibuf)
3310 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_DONE, 0, 0, -1, NULL, 0)
3312 return got_error_from_errno("imsg_compose DELTA_REUSE_DONE");
3314 return flush_imsg(ibuf);
3317 const struct got_error *
3318 got_privsep_recv_reused_deltas(int *done, struct got_imsg_reused_delta *deltas,
3319 size_t *ndeltas, struct imsgbuf *ibuf)
3321 const struct got_error *err = NULL;
3323 struct got_imsg_reused_deltas *ideltas;
3329 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3333 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3334 switch (imsg.hdr.type) {
3335 case GOT_IMSG_REUSED_DELTAS:
3336 if (datalen < sizeof(*ideltas)) {
3337 err = got_error(GOT_ERR_PRIVSEP_LEN);
3340 ideltas = imsg.data;
3341 if (ideltas->ndeltas > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3342 ideltas->ndeltas * sizeof(*deltas) >
3343 datalen - sizeof(*ideltas)) {
3344 err = got_error(GOT_ERR_PRIVSEP_LEN);
3347 *ndeltas = ideltas->ndeltas;
3348 memcpy(deltas, (uint8_t *)imsg.data + sizeof(*ideltas),
3349 *ndeltas * sizeof(*deltas));
3351 case GOT_IMSG_DELTA_REUSE_DONE:
3355 err = got_error(GOT_ERR_PRIVSEP_MSG);
3364 const struct got_error *
3365 got_privsep_init_commit_painting(struct imsgbuf *ibuf)
3367 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_INIT,
3370 return got_error_from_errno("imsg_compose "
3371 "COMMIT_PAINTING_INIT");
3373 return flush_imsg(ibuf);
3376 const struct got_error *
3377 got_privsep_send_painting_request(struct imsgbuf *ibuf, int idx,
3378 struct got_object_id *id, intptr_t color)
3380 struct got_imsg_commit_painting_request ireq;
3382 memset(&ireq, 0, sizeof(ireq));
3383 memcpy(&ireq.id, id, sizeof(ireq.id));
3387 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_REQUEST, 0, 0, -1,
3388 &ireq, sizeof(ireq)) == -1)
3389 return got_error_from_errno("imsg_compose "
3390 "COMMIT_PAINTING_REQUEST");
3392 return flush_imsg(ibuf);
3395 static const struct got_error *
3396 send_painted_commits(struct got_object_id_queue *ids, int *nids,
3397 size_t remain, int present_in_pack, struct imsgbuf *ibuf)
3399 const struct got_error *err = NULL;
3400 struct ibuf *wbuf = NULL;
3401 struct got_object_qid *qid;
3406 msglen = MIN(remain, MAX_IMSGSIZE - IMSG_HEADER_SIZE);
3407 ncommits = (msglen - sizeof(struct got_imsg_painted_commits)) /
3408 sizeof(struct got_imsg_painted_commit);
3410 wbuf = imsg_create(ibuf, GOT_IMSG_PAINTED_COMMITS, 0, 0, msglen);
3412 err = got_error_from_errno("imsg_create PAINTED_COMMITS");
3416 /* Keep in sync with struct got_imsg_painted_commits! */
3417 if (imsg_add(wbuf, &ncommits, sizeof(ncommits)) == -1)
3418 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3419 if (imsg_add(wbuf, &present_in_pack, sizeof(present_in_pack)) == -1)
3420 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3422 while (ncommits > 0) {
3423 qid = STAILQ_FIRST(ids);
3424 STAILQ_REMOVE_HEAD(ids, entry);
3427 color = (intptr_t)qid->data;
3429 /* Keep in sync with struct got_imsg_painted_commit! */
3430 if (imsg_add(wbuf, qid->id.sha1, SHA1_DIGEST_LENGTH) == -1)
3431 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3432 if (imsg_add(wbuf, &color, sizeof(color)) == -1)
3433 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3435 got_object_qid_free(qid);
3438 imsg_close(ibuf, wbuf);
3439 return flush_imsg(ibuf);
3442 const struct got_error *
3443 got_privsep_send_painted_commits(struct imsgbuf *ibuf,
3444 struct got_object_id_queue *ids, int *nids,
3445 int present_in_pack, int flush)
3447 const struct got_error *err;
3454 remain = (sizeof(struct got_imsg_painted_commits)) +
3455 *nids * sizeof(struct got_imsg_painted_commit);
3456 if (flush || remain >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
3457 err = send_painted_commits(ids, nids, remain,
3458 present_in_pack, ibuf);
3462 } while (flush && *nids > 0);
3467 const struct got_error *
3468 got_privsep_send_painting_commits_done(struct imsgbuf *ibuf)
3470 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_DONE,
3473 return got_error_from_errno("imsg_compose "
3474 "COMMIT_PAINTING_DONE");
3476 return flush_imsg(ibuf);
3479 const struct got_error *
3480 got_privsep_recv_painted_commits(struct got_object_id_queue *new_ids,
3481 got_privsep_recv_painted_commit_cb cb, void *cb_arg, struct imsgbuf *ibuf)
3483 const struct got_error *err = NULL;
3485 struct got_imsg_painted_commits icommits;
3486 struct got_imsg_painted_commit icommit;
3491 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3495 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3496 if (imsg.hdr.type == GOT_IMSG_COMMIT_PAINTING_DONE) {
3500 if (imsg.hdr.type != GOT_IMSG_PAINTED_COMMITS){
3502 return got_error(GOT_ERR_PRIVSEP_MSG);
3505 if (datalen < sizeof(icommits)){
3507 return got_error(GOT_ERR_PRIVSEP_LEN);
3509 memcpy(&icommits, imsg.data, sizeof(icommits));
3510 if (icommits.ncommits * sizeof(icommit) < icommits.ncommits ||
3511 datalen < sizeof(icommits) +
3512 icommits.ncommits * sizeof(icommit)){
3514 return got_error(GOT_ERR_PRIVSEP_LEN);
3517 for (i = 0; i < icommits.ncommits; i++) {
3519 (uint8_t *)imsg.data + sizeof(icommits) + i * sizeof(icommit),
3522 if (icommits.present_in_pack) {
3523 struct got_object_id id;
3524 memcpy(id.sha1, icommit.id, SHA1_DIGEST_LENGTH);
3525 err = cb(cb_arg, &id, icommit.color);
3529 struct got_object_qid *qid;
3530 err = got_object_qid_alloc_partial(&qid);
3533 memcpy(qid->id.sha1, icommit.id,
3534 SHA1_DIGEST_LENGTH);
3535 qid->data = (void *)icommit.color;
3536 STAILQ_INSERT_TAIL(new_ids, qid, entry);
3546 const struct got_error *
3547 got_privsep_unveil_exec_helpers(void)
3549 const char *helpers[] = {
3550 GOT_PATH_PROG_READ_PACK,
3551 GOT_PATH_PROG_READ_OBJECT,
3552 GOT_PATH_PROG_READ_COMMIT,
3553 GOT_PATH_PROG_READ_TREE,
3554 GOT_PATH_PROG_READ_BLOB,
3555 GOT_PATH_PROG_READ_TAG,
3556 GOT_PATH_PROG_READ_GITCONFIG,
3557 GOT_PATH_PROG_READ_GOTCONFIG,
3558 GOT_PATH_PROG_READ_PATCH,
3559 GOT_PATH_PROG_FETCH_PACK,
3560 GOT_PATH_PROG_INDEX_PACK,
3561 GOT_PATH_PROG_SEND_PACK,
3565 for (i = 0; i < nitems(helpers); i++) {
3566 if (unveil(helpers[i], "x") == 0)
3568 return got_error_from_errno2("unveil", helpers[i]);
3575 got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
3577 if (close(imsg_fds[0]) == -1) {
3578 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3582 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
3583 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3587 closefrom(GOT_IMSG_FD_CHILD + 1);
3589 if (execl(path, path, repo_path, (char *)NULL) == -1) {
3590 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,