2 * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
3 * Copyright (c) 2020 Ori Bernstein <ori@openbsd.org>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <sys/types.h>
19 #include <sys/queue.h>
38 #include "got_object.h"
39 #include "got_error.h"
41 #include "got_repository.h"
43 #include "got_lib_sha1.h"
44 #include "got_lib_delta.h"
45 #include "got_lib_inflate.h"
46 #include "got_lib_object.h"
47 #include "got_lib_object_parse.h"
48 #include "got_lib_privsep.h"
49 #include "got_lib_pack.h"
51 #include "got_privsep.h"
54 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
58 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
61 static const struct got_error *
62 poll_fd(int fd, int events, int timeout)
70 pfd[0].events = events;
75 if (sigemptyset(&sigset) == -1)
76 return got_error_from_errno("sigemptyset");
77 if (sigaddset(&sigset, SIGWINCH) == -1)
78 return got_error_from_errno("sigaddset");
80 n = ppoll(pfd, 1, timeout == INFTIM ? NULL : &ts, &sigset);
82 return got_error_from_errno("ppoll");
84 return got_error(GOT_ERR_TIMEOUT);
85 if (pfd[0].revents & (POLLERR | POLLNVAL))
86 return got_error_from_errno("poll error");
87 if (pfd[0].revents & (events | POLLHUP))
90 return got_error(GOT_ERR_INTERRUPT);
93 static const struct got_error *
94 read_imsg(struct imsgbuf *ibuf)
96 const struct got_error *err;
99 err = poll_fd(ibuf->fd, POLLIN, INFTIM);
105 if (errno == EAGAIN) /* Could be a file-descriptor leak. */
106 return got_error(GOT_ERR_PRIVSEP_NO_FD);
107 return got_error(GOT_ERR_PRIVSEP_READ);
110 return got_error(GOT_ERR_PRIVSEP_PIPE);
115 const struct got_error *
116 got_privsep_wait_for_child(pid_t pid)
120 if (waitpid(pid, &child_status, 0) == -1)
121 return got_error_from_errno("waitpid");
123 if (!WIFEXITED(child_status))
124 return got_error(GOT_ERR_PRIVSEP_DIED);
126 if (WEXITSTATUS(child_status) != 0)
127 return got_error(GOT_ERR_PRIVSEP_EXIT);
132 static const struct got_error *
133 recv_imsg_error(struct imsg *imsg, size_t datalen)
135 struct got_imsg_error *ierr;
137 if (datalen != sizeof(*ierr))
138 return got_error(GOT_ERR_PRIVSEP_LEN);
141 if (ierr->code == GOT_ERR_ERRNO) {
142 static struct got_error serr;
143 serr.code = GOT_ERR_ERRNO;
144 serr.msg = strerror(ierr->errno_code);
148 return got_error(ierr->code);
151 const struct got_error *
152 got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
155 const struct got_error *err;
158 n = imsg_get(ibuf, imsg);
160 return got_error_from_errno("imsg_get");
163 err = read_imsg(ibuf);
166 n = imsg_get(ibuf, imsg);
168 return got_error_from_errno("imsg_get");
171 if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
172 return got_error(GOT_ERR_PRIVSEP_LEN);
174 if (imsg->hdr.type == GOT_IMSG_ERROR) {
175 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
176 return recv_imsg_error(imsg, datalen);
182 /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
184 got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
186 const struct got_error *poll_err;
187 struct got_imsg_error ierr;
190 ierr.code = err->code;
191 if (err->code == GOT_ERR_ERRNO)
192 ierr.errno_code = errno;
195 ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
197 fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
198 getprogname(), err->code, err->msg, strerror(errno));
202 poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
204 fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
205 getprogname(), err->code, err->msg, poll_err->msg);
209 ret = imsg_flush(ibuf);
211 fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
212 getprogname(), err->code, err->msg, strerror(errno));
218 static const struct got_error *
219 flush_imsg(struct imsgbuf *ibuf)
221 const struct got_error *err;
223 err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
227 if (imsg_flush(ibuf) == -1) {
229 return got_error_from_errno("imsg_flush");
235 const struct got_error *
236 got_privsep_flush_imsg(struct imsgbuf *ibuf)
238 return flush_imsg(ibuf);
241 const struct got_error *
242 got_privsep_send_stop(int fd)
244 const struct got_error *err = NULL;
247 imsg_init(&ibuf, fd);
249 if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
250 return got_error_from_errno("imsg_compose STOP");
252 err = flush_imsg(&ibuf);
256 const struct got_error *
257 got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd,
258 struct got_object_id *id)
260 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd,
261 id, sizeof(*id)) == -1)
262 return got_error_from_errno("imsg_compose OBJECT_REQUEST");
264 return flush_imsg(ibuf);
267 const struct got_error *
268 got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd,
269 struct got_object_id *id)
271 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd,
272 id, sizeof(*id)) == -1)
273 return got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST");
275 return flush_imsg(ibuf);
278 const struct got_error *
279 got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd)
281 const struct got_error *err = NULL;
283 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL, 0)
285 err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD");
290 return flush_imsg(ibuf);
293 const struct got_error *
294 got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen,
297 const struct got_error *err = NULL;
298 struct got_imsg_raw_obj iobj;
299 size_t len = sizeof(iobj);
302 memset(&iobj, 0, sizeof(iobj));
303 iobj.hdrlen = hdrlen;
306 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX)
307 len += (size_t)size + hdrlen;
309 wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len);
311 err = got_error_from_errno("imsg_create RAW_OBJECT");
315 if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1)
316 return got_error_from_errno("imsg_add RAW_OBJECT");
318 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
319 if (imsg_add(wbuf, data, size + hdrlen) == -1)
320 return got_error_from_errno("imsg_add RAW_OBJECT");
324 imsg_close(ibuf, wbuf);
326 return flush_imsg(ibuf);
329 const struct got_error *
330 got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen,
331 struct imsgbuf *ibuf)
333 const struct got_error *err = NULL;
335 struct got_imsg_raw_obj *iobj;
340 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
344 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
346 switch (imsg.hdr.type) {
347 case GOT_IMSG_RAW_OBJECT:
348 if (datalen < sizeof(*iobj)) {
349 err = got_error(GOT_ERR_PRIVSEP_LEN);
354 *hdrlen = iobj->hdrlen;
356 if (datalen == sizeof(*iobj)) {
357 /* Data has been written to file descriptor. */
362 *size + *hdrlen > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
363 err = got_error(GOT_ERR_PRIVSEP_LEN);
367 *outbuf = malloc(*size + *hdrlen);
368 if (*outbuf == NULL) {
369 err = got_error_from_errno("malloc");
372 memcpy(*outbuf, imsg.data + sizeof(*iobj), *size + *hdrlen);
375 err = got_error(GOT_ERR_PRIVSEP_MSG);
384 const struct got_error *
385 got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
386 struct got_object_id *id, int pack_idx)
388 const struct got_error *err = NULL;
389 struct got_imsg_packed_object iobj;
393 memset(&iobj, 0, sizeof(iobj));
394 if (pack_idx != -1) { /* commit is packed */
396 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
404 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, data, len)
406 err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
411 return flush_imsg(ibuf);
414 const struct got_error *
415 got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
416 struct got_object_id *id, int pack_idx)
422 len = sizeof(struct got_imsg_packed_object);
426 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
428 return got_error_from_errno("imsg_create TREE_REQUEST");
430 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
431 return got_error_from_errno("imsg_add TREE_REQUEST");
433 if (pack_idx != -1) { /* tree is packed */
434 if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1)
435 return got_error_from_errno("imsg_add TREE_REQUEST");
439 imsg_close(ibuf, wbuf);
441 return flush_imsg(ibuf);
444 const struct got_error *
445 got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
446 struct got_object_id *id, int pack_idx)
448 struct got_imsg_packed_object iobj;
452 memset(&iobj, 0, sizeof(iobj));
453 if (pack_idx != -1) { /* tag is packed */
455 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
463 if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, data, len)
465 return got_error_from_errno("imsg_compose TAG_REQUEST");
467 return flush_imsg(ibuf);
470 const struct got_error *
471 got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
472 struct got_object_id *id, int pack_idx)
474 const struct got_error *err = NULL;
475 struct got_imsg_packed_object iobj;
479 memset(&iobj, 0, sizeof(iobj));
480 if (pack_idx != -1) { /* blob is packed */
482 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
490 if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, data, len)
492 err = got_error_from_errno("imsg_compose BLOB_REQUEST");
497 return flush_imsg(ibuf);
500 const struct got_error *
501 got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
503 const struct got_error *err = NULL;
505 if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
507 err = got_error_from_errno("imsg_compose BLOB_OUTFD");
512 return flush_imsg(ibuf);
515 static const struct got_error *
516 send_fd(struct imsgbuf *ibuf, int imsg_code, int fd)
518 const struct got_error *err = NULL;
520 if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL, 0) == -1) {
521 err = got_error_from_errno("imsg_compose TMPFD");
526 return flush_imsg(ibuf);
529 const struct got_error *
530 got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
532 return send_fd(ibuf, GOT_IMSG_TMPFD, fd);
535 const struct got_error *
536 got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
538 struct got_imsg_object iobj;
540 memset(&iobj, 0, sizeof(iobj));
542 memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id));
543 iobj.type = obj->type;
544 iobj.flags = obj->flags;
545 iobj.hdrlen = obj->hdrlen;
546 iobj.size = obj->size;
547 if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
548 iobj.pack_offset = obj->pack_offset;
549 iobj.pack_idx = obj->pack_idx;
552 if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
554 return got_error_from_errno("imsg_compose OBJECT");
556 return flush_imsg(ibuf);
559 const struct got_error *
560 got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd,
561 struct got_pathlist_head *have_refs, int fetch_all_branches,
562 struct got_pathlist_head *wanted_branches,
563 struct got_pathlist_head *wanted_refs, int list_refs_only, int verbosity)
565 const struct got_error *err = NULL;
568 struct got_pathlist_entry *pe;
569 struct got_imsg_fetch_request fetchreq;
571 memset(&fetchreq, 0, sizeof(fetchreq));
572 fetchreq.fetch_all_branches = fetch_all_branches;
573 fetchreq.list_refs_only = list_refs_only;
574 fetchreq.verbosity = verbosity;
575 TAILQ_FOREACH(pe, have_refs, entry)
576 fetchreq.n_have_refs++;
577 TAILQ_FOREACH(pe, wanted_branches, entry)
578 fetchreq.n_wanted_branches++;
579 TAILQ_FOREACH(pe, wanted_refs, entry)
580 fetchreq.n_wanted_refs++;
581 len = sizeof(struct got_imsg_fetch_request);
582 if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
584 return got_error(GOT_ERR_NO_SPACE);
587 if (imsg_compose(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, fd,
588 &fetchreq, sizeof(fetchreq)) == -1)
589 return got_error_from_errno(
590 "imsg_compose FETCH_SERVER_PROGRESS");
592 err = flush_imsg(ibuf);
599 TAILQ_FOREACH(pe, have_refs, entry) {
600 const char *name = pe->path;
601 size_t name_len = pe->path_len;
602 struct got_object_id *id = pe->data;
604 len = sizeof(struct got_imsg_fetch_have_ref) + name_len;
605 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len);
607 return got_error_from_errno("imsg_create FETCH_HAVE_REF");
609 /* Keep in sync with struct got_imsg_fetch_have_ref! */
610 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1)
611 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
612 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
613 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
614 if (imsg_add(wbuf, name, name_len) == -1)
615 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
618 imsg_close(ibuf, wbuf);
619 err = flush_imsg(ibuf);
624 TAILQ_FOREACH(pe, wanted_branches, entry) {
625 const char *name = pe->path;
626 size_t name_len = pe->path_len;
628 len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len;
629 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0,
632 return got_error_from_errno(
633 "imsg_create FETCH_WANTED_BRANCH");
635 /* Keep in sync with struct got_imsg_fetch_wanted_branch! */
636 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
637 return got_error_from_errno(
638 "imsg_add FETCH_WANTED_BRANCH");
639 if (imsg_add(wbuf, name, name_len) == -1)
640 return got_error_from_errno(
641 "imsg_add FETCH_WANTED_BRANCH");
644 imsg_close(ibuf, wbuf);
645 err = flush_imsg(ibuf);
650 TAILQ_FOREACH(pe, wanted_refs, entry) {
651 const char *name = pe->path;
652 size_t name_len = pe->path_len;
654 len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len;
655 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0,
658 return got_error_from_errno(
659 "imsg_create FETCH_WANTED_REF");
661 /* Keep in sync with struct got_imsg_fetch_wanted_ref! */
662 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
663 return got_error_from_errno(
664 "imsg_add FETCH_WANTED_REF");
665 if (imsg_add(wbuf, name, name_len) == -1)
666 return got_error_from_errno(
667 "imsg_add FETCH_WANTED_REF");
670 imsg_close(ibuf, wbuf);
671 err = flush_imsg(ibuf);
681 const struct got_error *
682 got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd)
684 return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd);
687 const struct got_error *
688 got_privsep_recv_fetch_progress(int *done, struct got_object_id **id,
689 char **refname, struct got_pathlist_head *symrefs, char **server_progress,
690 off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf)
692 const struct got_error *err = NULL;
695 struct got_imsg_fetch_symrefs *isymrefs = NULL;
703 *server_progress = NULL;
705 memset(pack_sha1, 0, SHA1_DIGEST_LENGTH);
707 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
711 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
712 switch (imsg.hdr.type) {
714 err = recv_imsg_error(&imsg, datalen);
716 case GOT_IMSG_FETCH_SYMREFS:
717 if (datalen < sizeof(*isymrefs)) {
718 err = got_error(GOT_ERR_PRIVSEP_LEN);
721 if (isymrefs != NULL) {
722 err = got_error(GOT_ERR_PRIVSEP_MSG);
725 isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data;
726 off = sizeof(*isymrefs);
727 remain = datalen - off;
728 for (n = 0; n < isymrefs->nsymrefs; n++) {
729 struct got_imsg_fetch_symref *s;
731 if (remain < sizeof(struct got_imsg_fetch_symref)) {
732 err = got_error(GOT_ERR_PRIVSEP_LEN);
735 s = (struct got_imsg_fetch_symref *)(imsg.data + off);
737 remain -= sizeof(*s);
738 if (remain < s->name_len) {
739 err = got_error(GOT_ERR_PRIVSEP_LEN);
742 name = strndup(imsg.data + off, s->name_len);
744 err = got_error_from_errno("strndup");
748 remain -= s->name_len;
749 if (remain < s->target_len) {
750 err = got_error(GOT_ERR_PRIVSEP_LEN);
754 target = strndup(imsg.data + off, s->target_len);
755 if (target == NULL) {
756 err = got_error_from_errno("strndup");
760 off += s->target_len;
761 remain -= s->target_len;
762 err = got_pathlist_append(symrefs, name, target);
770 case GOT_IMSG_FETCH_REF:
771 if (datalen <= SHA1_DIGEST_LENGTH) {
772 err = got_error(GOT_ERR_PRIVSEP_MSG);
775 *id = malloc(sizeof(**id));
777 err = got_error_from_errno("malloc");
780 memcpy((*id)->sha1, imsg.data, SHA1_DIGEST_LENGTH);
781 *refname = strndup(imsg.data + SHA1_DIGEST_LENGTH,
782 datalen - SHA1_DIGEST_LENGTH);
783 if (*refname == NULL) {
784 err = got_error_from_errno("strndup");
788 case GOT_IMSG_FETCH_SERVER_PROGRESS:
790 err = got_error(GOT_ERR_PRIVSEP_LEN);
793 *server_progress = strndup(imsg.data, datalen);
794 if (*server_progress == NULL) {
795 err = got_error_from_errno("strndup");
798 for (i = 0; i < datalen; i++) {
799 if (!isprint((unsigned char)(*server_progress)[i]) &&
800 !isspace((unsigned char)(*server_progress)[i])) {
801 err = got_error(GOT_ERR_PRIVSEP_MSG);
802 free(*server_progress);
803 *server_progress = NULL;
808 case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS:
809 if (datalen < sizeof(*packfile_size)) {
810 err = got_error(GOT_ERR_PRIVSEP_MSG);
813 memcpy(packfile_size, imsg.data, sizeof(*packfile_size));
815 case GOT_IMSG_FETCH_DONE:
816 if (datalen != SHA1_DIGEST_LENGTH) {
817 err = got_error(GOT_ERR_PRIVSEP_MSG);
820 memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH);
824 err = got_error(GOT_ERR_PRIVSEP_MSG);
838 static const struct got_error *
839 send_send_ref(const char *name, size_t name_len, struct got_object_id *id,
840 int delete, struct imsgbuf *ibuf)
845 len = sizeof(struct got_imsg_send_ref) + name_len;
846 wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF, 0, 0, len);
848 return got_error_from_errno("imsg_create SEND_REF");
850 /* Keep in sync with struct got_imsg_send_ref! */
851 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1)
852 return got_error_from_errno("imsg_add SEND_REF");
853 if (imsg_add(wbuf, &delete, sizeof(delete)) == -1)
854 return got_error_from_errno("imsg_add SEND_REF");
855 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
856 return got_error_from_errno("imsg_add SEND_REF");
857 if (imsg_add(wbuf, name, name_len) == -1)
858 return got_error_from_errno("imsg_add SEND_REF");
861 imsg_close(ibuf, wbuf);
862 return flush_imsg(ibuf);
865 const struct got_error *
866 got_privsep_send_send_req(struct imsgbuf *ibuf, int fd,
867 struct got_pathlist_head *have_refs,
868 struct got_pathlist_head *delete_refs,
871 const struct got_error *err = NULL;
872 struct got_pathlist_entry *pe;
873 struct got_imsg_send_request sendreq;
874 struct got_object_id zero_id;
876 memset(&zero_id, 0, sizeof(zero_id));
877 memset(&sendreq, 0, sizeof(sendreq));
878 sendreq.verbosity = verbosity;
879 TAILQ_FOREACH(pe, have_refs, entry)
881 TAILQ_FOREACH(pe, delete_refs, entry)
883 if (imsg_compose(ibuf, GOT_IMSG_SEND_REQUEST, 0, 0, fd,
884 &sendreq, sizeof(sendreq)) == -1) {
885 err = got_error_from_errno(
886 "imsg_compose FETCH_SERVER_PROGRESS");
890 err = flush_imsg(ibuf);
895 TAILQ_FOREACH(pe, have_refs, entry) {
896 const char *name = pe->path;
897 size_t name_len = pe->path_len;
898 struct got_object_id *id = pe->data;
899 err = send_send_ref(name, name_len, id, 0, ibuf);
904 TAILQ_FOREACH(pe, delete_refs, entry) {
905 const char *name = pe->path;
906 size_t name_len = pe->path_len;
907 err = send_send_ref(name, name_len, &zero_id, 1, ibuf);
912 if (fd != -1 && close(fd) == -1 && err == NULL)
913 err = got_error_from_errno("close");
918 const struct got_error *
919 got_privsep_recv_send_remote_refs(struct got_pathlist_head *remote_refs,
920 struct imsgbuf *ibuf)
922 const struct got_error *err = NULL;
926 struct got_imsg_send_remote_ref iremote_ref;
927 struct got_object_id *id = NULL;
928 char *refname = NULL;
929 struct got_pathlist_entry *new;
932 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
935 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
936 switch (imsg.hdr.type) {
938 err = recv_imsg_error(&imsg, datalen);
940 case GOT_IMSG_SEND_REMOTE_REF:
941 if (datalen < sizeof(iremote_ref)) {
942 err = got_error(GOT_ERR_PRIVSEP_MSG);
945 memcpy(&iremote_ref, imsg.data, sizeof(iremote_ref));
946 if (datalen != sizeof(iremote_ref) +
947 iremote_ref.name_len) {
948 err = got_error(GOT_ERR_PRIVSEP_MSG);
951 id = malloc(sizeof(*id));
953 err = got_error_from_errno("malloc");
956 memcpy(id->sha1, iremote_ref.id, SHA1_DIGEST_LENGTH);
957 refname = strndup(imsg.data + sizeof(iremote_ref),
958 datalen - sizeof(iremote_ref));
959 if (refname == NULL) {
960 err = got_error_from_errno("strndup");
963 err = got_pathlist_insert(&new, remote_refs,
967 if (new == NULL) { /* duplicate which wasn't inserted */
974 case GOT_IMSG_SEND_PACK_REQUEST:
976 err = got_error(GOT_ERR_PRIVSEP_MSG);
979 /* got-send-pack is now waiting for a pack file. */
983 err = got_error(GOT_ERR_PRIVSEP_MSG);
994 const struct got_error *
995 got_privsep_send_packfd(struct imsgbuf *ibuf, int fd)
997 return send_fd(ibuf, GOT_IMSG_SEND_PACKFD, fd);
1000 const struct got_error *
1001 got_privsep_recv_send_progress(int *done, off_t *bytes_sent,
1002 int *success, char **refname, struct imsgbuf *ibuf)
1004 const struct got_error *err = NULL;
1007 struct got_imsg_send_ref_status iref_status;
1009 /* Do not reset the current value of 'bytes_sent', it accumulates. */
1014 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1018 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1019 switch (imsg.hdr.type) {
1020 case GOT_IMSG_ERROR:
1021 err = recv_imsg_error(&imsg, datalen);
1023 case GOT_IMSG_SEND_UPLOAD_PROGRESS:
1024 if (datalen < sizeof(*bytes_sent)) {
1025 err = got_error(GOT_ERR_PRIVSEP_MSG);
1028 memcpy(bytes_sent, imsg.data, sizeof(*bytes_sent));
1030 case GOT_IMSG_SEND_REF_STATUS:
1031 if (datalen < sizeof(iref_status)) {
1032 err = got_error(GOT_ERR_PRIVSEP_MSG);
1035 memcpy(&iref_status, imsg.data, sizeof(iref_status));
1036 if (datalen != sizeof(iref_status) + iref_status.name_len) {
1037 err = got_error(GOT_ERR_PRIVSEP_MSG);
1040 *success = iref_status.success;
1041 *refname = strndup(imsg.data + sizeof(iref_status),
1042 iref_status.name_len);
1044 case GOT_IMSG_SEND_DONE:
1046 err = got_error(GOT_ERR_PRIVSEP_MSG);
1052 err = got_error(GOT_ERR_PRIVSEP_MSG);
1060 const struct got_error *
1061 got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1,
1064 const struct got_error *err = NULL;
1066 /* Keep in sync with struct got_imsg_index_pack_request */
1067 if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd,
1068 pack_sha1, SHA1_DIGEST_LENGTH) == -1) {
1069 err = got_error_from_errno("imsg_compose INDEX_REQUEST");
1073 return flush_imsg(ibuf);
1076 const struct got_error *
1077 got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd)
1079 return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd);
1082 const struct got_error *
1083 got_privsep_recv_index_progress(int *done, int *nobj_total,
1084 int *nobj_indexed, int *nobj_loose, int *nobj_resolved,
1085 struct imsgbuf *ibuf)
1087 const struct got_error *err = NULL;
1089 struct got_imsg_index_pack_progress *iprogress;
1097 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1101 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1102 switch (imsg.hdr.type) {
1103 case GOT_IMSG_ERROR:
1104 err = recv_imsg_error(&imsg, datalen);
1106 case GOT_IMSG_IDXPACK_PROGRESS:
1107 if (datalen < sizeof(*iprogress)) {
1108 err = got_error(GOT_ERR_PRIVSEP_LEN);
1111 iprogress = (struct got_imsg_index_pack_progress *)imsg.data;
1112 if (iprogress->nobj_total < 0 || iprogress->nobj_indexed < 0 ||
1113 iprogress->nobj_loose < 0 || iprogress->nobj_resolved < 0) {
1114 err = got_error(GOT_ERR_RANGE);
1117 *nobj_total = iprogress->nobj_total;
1118 *nobj_indexed = iprogress->nobj_indexed;
1119 *nobj_loose = iprogress->nobj_loose;
1120 *nobj_resolved = iprogress->nobj_resolved;
1122 case GOT_IMSG_IDXPACK_DONE:
1124 err = got_error(GOT_ERR_PRIVSEP_LEN);
1130 err = got_error(GOT_ERR_PRIVSEP_MSG);
1138 const struct got_error *
1139 got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
1140 struct imsgbuf *ibuf)
1142 struct got_imsg_object *iobj;
1143 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1145 if (datalen != sizeof(*iobj))
1146 return got_error(GOT_ERR_PRIVSEP_LEN);
1149 if (iobj->pack_offset < 0)
1150 return got_error(GOT_ERR_PACK_OFFSET);
1152 *obj = calloc(1, sizeof(**obj));
1154 return got_error_from_errno("calloc");
1156 memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH);
1157 (*obj)->type = iobj->type;
1158 (*obj)->flags = iobj->flags;
1159 (*obj)->hdrlen = iobj->hdrlen;
1160 (*obj)->size = iobj->size;
1161 /* path_packfile is handled by caller */
1162 if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
1163 (*obj)->pack_offset = iobj->pack_offset;
1164 (*obj)->pack_idx = iobj->pack_idx;
1166 STAILQ_INIT(&(*obj)->deltas.entries);
1170 const struct got_error *
1171 got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
1173 const struct got_error *err = NULL;
1175 const size_t min_datalen =
1176 MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
1180 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1184 switch (imsg.hdr.type) {
1185 case GOT_IMSG_OBJECT:
1186 err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
1189 err = got_error(GOT_ERR_PRIVSEP_MSG);
1198 static const struct got_error *
1199 send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
1202 const struct got_error *err = NULL;
1203 size_t offset, remain;
1206 remain = logmsg_len;
1207 while (remain > 0) {
1208 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1210 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
1211 commit->logmsg + offset, n) == -1) {
1212 err = got_error_from_errno("imsg_compose "
1217 err = flush_imsg(ibuf);
1228 const struct got_error *
1229 got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
1231 const struct got_error *err = NULL;
1232 struct got_imsg_commit_object *icommit;
1235 struct got_object_qid *qid;
1236 size_t author_len = strlen(commit->author);
1237 size_t committer_len = strlen(commit->committer);
1238 size_t logmsg_len = strlen(commit->logmsg);
1240 total = sizeof(*icommit) + author_len + committer_len +
1241 commit->nparents * SHA1_DIGEST_LENGTH;
1243 buf = malloc(total);
1245 return got_error_from_errno("malloc");
1247 icommit = (struct got_imsg_commit_object *)buf;
1248 memcpy(icommit->tree_id, commit->tree_id->sha1,
1249 sizeof(icommit->tree_id));
1250 icommit->author_len = author_len;
1251 icommit->author_time = commit->author_time;
1252 icommit->author_gmtoff = commit->author_gmtoff;
1253 icommit->committer_len = committer_len;
1254 icommit->committer_time = commit->committer_time;
1255 icommit->committer_gmtoff = commit->committer_gmtoff;
1256 icommit->logmsg_len = logmsg_len;
1257 icommit->nparents = commit->nparents;
1259 len = sizeof(*icommit);
1260 memcpy(buf + len, commit->author, author_len);
1262 memcpy(buf + len, commit->committer, committer_len);
1263 len += committer_len;
1264 STAILQ_FOREACH(qid, &commit->parent_ids, entry) {
1265 memcpy(buf + len, &qid->id, SHA1_DIGEST_LENGTH);
1266 len += SHA1_DIGEST_LENGTH;
1269 if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
1270 err = got_error_from_errno("imsg_compose COMMIT");
1274 if (logmsg_len == 0 ||
1275 logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1276 err = flush_imsg(ibuf);
1280 err = send_commit_logmsg(ibuf, commit, logmsg_len);
1286 static const struct got_error *
1287 get_commit_from_imsg(struct got_commit_object **commit,
1288 struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf)
1290 const struct got_error *err = NULL;
1291 struct got_imsg_commit_object *icommit;
1295 if (datalen < sizeof(*icommit))
1296 return got_error(GOT_ERR_PRIVSEP_LEN);
1298 icommit = imsg->data;
1299 if (datalen != sizeof(*icommit) + icommit->author_len +
1300 icommit->committer_len +
1301 icommit->nparents * SHA1_DIGEST_LENGTH)
1302 return got_error(GOT_ERR_PRIVSEP_LEN);
1304 if (icommit->nparents < 0)
1305 return got_error(GOT_ERR_PRIVSEP_LEN);
1307 len += sizeof(*icommit);
1309 *commit = got_object_commit_alloc_partial();
1310 if (*commit == NULL)
1311 return got_error_from_errno(
1312 "got_object_commit_alloc_partial");
1314 memcpy((*commit)->tree_id->sha1, icommit->tree_id,
1315 SHA1_DIGEST_LENGTH);
1316 (*commit)->author_time = icommit->author_time;
1317 (*commit)->author_gmtoff = icommit->author_gmtoff;
1318 (*commit)->committer_time = icommit->committer_time;
1319 (*commit)->committer_gmtoff = icommit->committer_gmtoff;
1321 (*commit)->author = strndup(imsg->data + len, icommit->author_len);
1322 if ((*commit)->author == NULL) {
1323 err = got_error_from_errno("strndup");
1326 len += icommit->author_len;
1328 (*commit)->committer = strndup(imsg->data + len,
1329 icommit->committer_len);
1330 if ((*commit)->committer == NULL) {
1331 err = got_error_from_errno("strndup");
1334 len += icommit->committer_len;
1336 if (icommit->logmsg_len == 0) {
1337 (*commit)->logmsg = strdup("");
1338 if ((*commit)->logmsg == NULL) {
1339 err = got_error_from_errno("strdup");
1343 size_t offset = 0, remain = icommit->logmsg_len;
1345 (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
1346 if ((*commit)->logmsg == NULL) {
1347 err = got_error_from_errno("malloc");
1350 while (remain > 0) {
1351 struct imsg imsg_log;
1352 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1355 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1359 if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) {
1360 err = got_error(GOT_ERR_PRIVSEP_MSG);
1364 memcpy((*commit)->logmsg + offset,
1366 imsg_free(&imsg_log);
1370 (*commit)->logmsg[icommit->logmsg_len] = '\0';
1373 for (i = 0; i < icommit->nparents; i++) {
1374 struct got_object_qid *qid;
1376 err = got_object_qid_alloc_partial(&qid);
1379 memcpy(&qid->id, imsg->data + len +
1380 i * SHA1_DIGEST_LENGTH, sizeof(qid->id));
1381 STAILQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
1382 (*commit)->nparents++;
1386 got_object_commit_close(*commit);
1392 const struct got_error *
1393 got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
1395 const struct got_error *err = NULL;
1398 const size_t min_datalen =
1399 MIN(sizeof(struct got_imsg_error),
1400 sizeof(struct got_imsg_commit_object));
1404 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1408 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1410 switch (imsg.hdr.type) {
1411 case GOT_IMSG_COMMIT:
1412 err = get_commit_from_imsg(commit, &imsg, datalen, ibuf);
1415 err = got_error(GOT_ERR_PRIVSEP_MSG);
1424 static const struct got_error *
1425 send_tree_entries_batch(struct imsgbuf *ibuf,
1426 struct got_parsed_tree_entry *entries, int idx0, int idxN, size_t len)
1429 struct got_imsg_tree_entries ientries;
1432 memset(&ientries, 0, sizeof(ientries));
1434 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRIES, 0, 0, len);
1436 return got_error_from_errno("imsg_create TREE_ENTRY");
1438 ientries.nentries = idxN - idx0 + 1;
1439 if (imsg_add(wbuf, &ientries, sizeof(ientries)) == -1)
1440 return got_error_from_errno("imsg_add TREE_ENTRY");
1442 for (i = idx0; i <= idxN; i++) {
1443 struct got_parsed_tree_entry *pte = &entries[i];
1445 /* Keep in sync with struct got_imsg_tree_object definition! */
1446 if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1)
1447 return got_error_from_errno("imsg_add TREE_ENTRY");
1448 if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1)
1449 return got_error_from_errno("imsg_add TREE_ENTRY");
1450 if (imsg_add(wbuf, &pte->namelen, sizeof(pte->namelen)) == -1)
1451 return got_error_from_errno("imsg_add TREE_ENTRY");
1453 /* Remaining bytes are the entry's name. */
1454 if (imsg_add(wbuf, pte->name, pte->namelen) == -1)
1455 return got_error_from_errno("imsg_add TREE_ENTRY");
1459 imsg_close(ibuf, wbuf);
1463 static const struct got_error *
1464 send_tree_entries(struct imsgbuf *ibuf, struct got_parsed_tree_entry *entries,
1467 const struct got_error *err = NULL;
1469 size_t entries_len = sizeof(struct got_imsg_tree_entries);
1472 for (j = 0; j < nentries; j++) {
1473 struct got_parsed_tree_entry *pte = &entries[j];
1474 size_t len = SHA1_DIGEST_LENGTH + sizeof(pte->mode) +
1475 sizeof(pte->namelen) + pte->namelen;
1478 entries_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1479 err = send_tree_entries_batch(ibuf, entries,
1480 i, j - 1, entries_len);
1484 entries_len = sizeof(struct got_imsg_tree_entries);
1491 err = send_tree_entries_batch(ibuf, entries, i, j - 1,
1500 const struct got_error *
1501 got_privsep_send_tree(struct imsgbuf *ibuf,
1502 struct got_parsed_tree_entry *entries, int nentries)
1504 const struct got_error *err = NULL;
1505 struct got_imsg_tree_object itree;
1507 memset(&itree, 0, sizeof(itree));
1508 itree.nentries = nentries;
1509 if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
1511 return got_error_from_errno("imsg_compose TREE");
1513 err = send_tree_entries(ibuf, entries, nentries);
1517 return flush_imsg(ibuf);
1521 static const struct got_error *
1522 recv_tree_entries(void *data, size_t datalen, struct got_tree_object *tree,
1525 const struct got_error *err = NULL;
1526 struct got_imsg_tree_entries *ientries;
1527 struct got_tree_entry *te;
1531 if (datalen <= sizeof(*ientries) ||
1532 datalen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
1533 return got_error(GOT_ERR_PRIVSEP_LEN);
1535 ientries = (struct got_imsg_tree_entries *)data;
1536 if (ientries->nentries > INT_MAX) {
1537 return got_error_msg(GOT_ERR_NO_SPACE,
1538 "too many tree entries");
1541 te_offset = sizeof(*ientries);
1542 for (i = 0; i < ientries->nentries; i++) {
1543 struct got_imsg_tree_entry ite;
1544 const char *te_name;
1545 uint8_t *buf = (uint8_t *)data + te_offset;
1547 if (te_offset >= datalen) {
1548 err = got_error(GOT_ERR_PRIVSEP_LEN);
1552 /* Might not be aligned, size is ~32 bytes. */
1553 memcpy(&ite, buf, sizeof(ite));
1555 if (ite.namelen >= sizeof(te->name)) {
1556 err = got_error(GOT_ERR_PRIVSEP_LEN);
1559 if (te_offset + sizeof(ite) + ite.namelen > datalen) {
1560 err = got_error(GOT_ERR_PRIVSEP_LEN);
1564 if (*nentries >= tree->nentries) {
1565 err = got_error(GOT_ERR_PRIVSEP_LEN);
1568 te = &tree->entries[*nentries];
1569 te_name = buf + sizeof(ite);
1570 memcpy(te->name, te_name, ite.namelen);
1571 te->name[ite.namelen] = '\0';
1572 memcpy(te->id.sha1, ite.id, SHA1_DIGEST_LENGTH);
1573 te->mode = ite.mode;
1574 te->idx = *nentries;
1577 te_offset += sizeof(ite) + ite.namelen;
1583 const struct got_error *
1584 got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
1586 const struct got_error *err = NULL;
1587 const size_t min_datalen =
1588 MIN(sizeof(struct got_imsg_error),
1589 sizeof(struct got_imsg_tree_object));
1590 struct got_imsg_tree_object *itree;
1595 err = read_imsg(ibuf);
1604 n = imsg_get(ibuf, &imsg);
1607 if (nentries < (*tree)->nentries) {
1608 err = read_imsg(ibuf);
1615 err = got_error(GOT_ERR_PRIVSEP_MSG);
1620 if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen) {
1622 err = got_error(GOT_ERR_PRIVSEP_LEN);
1626 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1628 switch (imsg.hdr.type) {
1629 case GOT_IMSG_ERROR:
1630 err = recv_imsg_error(&imsg, datalen);
1633 /* This message should only appear once. */
1634 if (*tree != NULL) {
1635 err = got_error(GOT_ERR_PRIVSEP_MSG);
1638 if (datalen != sizeof(*itree)) {
1639 err = got_error(GOT_ERR_PRIVSEP_LEN);
1643 if (itree->nentries < 0) {
1644 err = got_error(GOT_ERR_PRIVSEP_LEN);
1647 *tree = malloc(sizeof(**tree));
1648 if (*tree == NULL) {
1649 err = got_error_from_errno("malloc");
1652 (*tree)->entries = calloc(itree->nentries,
1653 sizeof(struct got_tree_entry));
1654 if ((*tree)->entries == NULL) {
1655 err = got_error_from_errno("malloc");
1660 (*tree)->nentries = itree->nentries;
1661 (*tree)->refcnt = 0;
1663 case GOT_IMSG_TREE_ENTRIES:
1664 /* This message should be preceeded by GOT_IMSG_TREE. */
1665 if (*tree == NULL) {
1666 err = got_error(GOT_ERR_PRIVSEP_MSG);
1669 err = recv_tree_entries(imsg.data, datalen,
1673 err = got_error(GOT_ERR_PRIVSEP_MSG);
1682 if (*tree && (*tree)->nentries != nentries) {
1684 err = got_error(GOT_ERR_PRIVSEP_LEN);
1685 got_object_tree_close(*tree);
1692 const struct got_error *
1693 got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
1694 const uint8_t *data)
1696 struct got_imsg_blob iblob;
1698 memset(&iblob, 0, sizeof(iblob));
1700 iblob.hdrlen = hdrlen;
1705 if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
1706 return got_error(GOT_ERR_NO_SPACE);
1708 buf = malloc(sizeof(iblob) + size);
1710 return got_error_from_errno("malloc");
1712 memcpy(buf, &iblob, sizeof(iblob));
1713 memcpy(buf + sizeof(iblob), data, size);
1714 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
1715 sizeof(iblob) + size) == -1) {
1717 return got_error_from_errno("imsg_compose BLOB");
1721 /* Data has already been written to file descriptor. */
1722 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
1723 sizeof(iblob)) == -1)
1724 return got_error_from_errno("imsg_compose BLOB");
1728 return flush_imsg(ibuf);
1731 const struct got_error *
1732 got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1733 struct imsgbuf *ibuf)
1735 const struct got_error *err = NULL;
1737 struct got_imsg_blob *iblob;
1742 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1746 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1748 switch (imsg.hdr.type) {
1750 if (datalen < sizeof(*iblob)) {
1751 err = got_error(GOT_ERR_PRIVSEP_LEN);
1755 *size = iblob->size;
1756 *hdrlen = iblob->hdrlen;
1758 if (datalen == sizeof(*iblob)) {
1759 /* Data has been written to file descriptor. */
1763 if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX ||
1764 *size > datalen + sizeof(*iblob)) {
1765 err = got_error(GOT_ERR_PRIVSEP_LEN);
1769 *outbuf = malloc(*size);
1770 if (*outbuf == NULL) {
1771 err = got_error_from_errno("malloc");
1774 memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
1777 err = got_error(GOT_ERR_PRIVSEP_MSG);
1786 static const struct got_error *
1787 send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
1789 const struct got_error *err = NULL;
1790 size_t offset, remain;
1793 remain = tagmsg_len;
1794 while (remain > 0) {
1795 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1797 if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
1798 tag->tagmsg + offset, n) == -1) {
1799 err = got_error_from_errno("imsg_compose TAG_TAGMSG");
1803 err = flush_imsg(ibuf);
1814 const struct got_error *
1815 got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1817 const struct got_error *err = NULL;
1818 struct got_imsg_tag_object *itag;
1821 size_t tag_len = strlen(tag->tag);
1822 size_t tagger_len = strlen(tag->tagger);
1823 size_t tagmsg_len = strlen(tag->tagmsg);
1825 total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1827 buf = malloc(total);
1829 return got_error_from_errno("malloc");
1831 itag = (struct got_imsg_tag_object *)buf;
1832 memcpy(itag->id, tag->id.sha1, sizeof(itag->id));
1833 itag->obj_type = tag->obj_type;
1834 itag->tag_len = tag_len;
1835 itag->tagger_len = tagger_len;
1836 itag->tagger_time = tag->tagger_time;
1837 itag->tagger_gmtoff = tag->tagger_gmtoff;
1838 itag->tagmsg_len = tagmsg_len;
1840 len = sizeof(*itag);
1841 memcpy(buf + len, tag->tag, tag_len);
1843 memcpy(buf + len, tag->tagger, tagger_len);
1846 if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1847 err = got_error_from_errno("imsg_compose TAG");
1851 if (tagmsg_len == 0 ||
1852 tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1853 err = flush_imsg(ibuf);
1857 err = send_tagmsg(ibuf, tag, tagmsg_len);
1863 const struct got_error *
1864 got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1866 const struct got_error *err = NULL;
1868 struct got_imsg_tag_object *itag;
1869 size_t len, datalen;
1870 const size_t min_datalen =
1871 MIN(sizeof(struct got_imsg_error),
1872 sizeof(struct got_imsg_tag_object));
1876 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1880 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1883 switch (imsg.hdr.type) {
1885 if (datalen < sizeof(*itag)) {
1886 err = got_error(GOT_ERR_PRIVSEP_LEN);
1890 if (datalen != sizeof(*itag) + itag->tag_len +
1892 err = got_error(GOT_ERR_PRIVSEP_LEN);
1895 len += sizeof(*itag);
1897 *tag = calloc(1, sizeof(**tag));
1899 err = got_error_from_errno("calloc");
1903 memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH);
1905 (*tag)->tag = strndup(imsg.data + len, itag->tag_len);
1906 if ((*tag)->tag == NULL) {
1907 err = got_error_from_errno("strndup");
1910 len += itag->tag_len;
1912 (*tag)->obj_type = itag->obj_type;
1913 (*tag)->tagger_time = itag->tagger_time;
1914 (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1916 (*tag)->tagger = strndup(imsg.data + len, itag->tagger_len);
1917 if ((*tag)->tagger == NULL) {
1918 err = got_error_from_errno("strndup");
1921 len += itag->tagger_len;
1923 if (itag->tagmsg_len == 0) {
1924 (*tag)->tagmsg = strdup("");
1925 if ((*tag)->tagmsg == NULL) {
1926 err = got_error_from_errno("strdup");
1930 size_t offset = 0, remain = itag->tagmsg_len;
1932 (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1933 if ((*tag)->tagmsg == NULL) {
1934 err = got_error_from_errno("malloc");
1937 while (remain > 0) {
1938 struct imsg imsg_log;
1939 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1942 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1946 if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1947 return got_error(GOT_ERR_PRIVSEP_MSG);
1949 memcpy((*tag)->tagmsg + offset, imsg_log.data,
1951 imsg_free(&imsg_log);
1955 (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1960 err = got_error(GOT_ERR_PRIVSEP_MSG);
1969 const struct got_error *
1970 got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1971 struct got_packidx *packidx)
1973 const struct got_error *err = NULL;
1974 struct got_imsg_packidx ipackidx;
1975 struct got_imsg_pack ipack;
1978 memset(&ipackidx, 0, sizeof(ipackidx));
1979 memset(&ipack, 0, sizeof(ipack));
1981 ipackidx.len = packidx->len;
1982 ipackidx.packfile_size = pack->filesize;
1983 fd = dup(packidx->fd);
1985 return got_error_from_errno("dup");
1987 if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1988 sizeof(ipackidx)) == -1) {
1989 err = got_error_from_errno("imsg_compose PACKIDX");
1994 if (strlcpy(ipack.path_packfile, pack->path_packfile,
1995 sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1996 return got_error(GOT_ERR_NO_SPACE);
1997 ipack.filesize = pack->filesize;
2001 return got_error_from_errno("dup");
2003 if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
2005 err = got_error_from_errno("imsg_compose PACK");
2010 return flush_imsg(ibuf);
2013 const struct got_error *
2014 got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
2015 struct got_object_id *id)
2017 struct got_imsg_packed_object iobj;
2019 memset(&iobj, 0, sizeof(iobj));
2021 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2023 if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
2024 &iobj, sizeof(iobj)) == -1)
2025 return got_error_from_errno("imsg_compose "
2026 "PACKED_OBJECT_REQUEST");
2028 return flush_imsg(ibuf);
2031 const struct got_error *
2032 got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx,
2033 struct got_object_id *id)
2035 struct got_imsg_packed_object iobj;
2037 memset(&iobj, 0, sizeof(iobj));
2039 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2041 if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1,
2042 &iobj, sizeof(iobj)) == -1)
2043 return got_error_from_errno("imsg_compose "
2044 "PACKED_OBJECT_REQUEST");
2046 return flush_imsg(ibuf);
2049 const struct got_error *
2050 got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
2052 const struct got_error *err = NULL;
2054 if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
2056 err = got_error_from_errno("imsg_compose "
2057 "GITCONFIG_PARSE_REQUEST");
2062 return flush_imsg(ibuf);
2065 const struct got_error *
2066 got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
2068 if (imsg_compose(ibuf,
2069 GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
2071 return got_error_from_errno("imsg_compose "
2072 "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
2074 return flush_imsg(ibuf);
2077 const struct got_error *
2078 got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf)
2080 if (imsg_compose(ibuf,
2081 GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1,
2083 return got_error_from_errno("imsg_compose "
2084 "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST");
2086 return flush_imsg(ibuf);
2090 const struct got_error *
2091 got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
2093 if (imsg_compose(ibuf,
2094 GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
2095 return got_error_from_errno("imsg_compose "
2096 "GITCONFIG_AUTHOR_NAME_REQUEST");
2098 return flush_imsg(ibuf);
2101 const struct got_error *
2102 got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
2104 if (imsg_compose(ibuf,
2105 GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
2106 return got_error_from_errno("imsg_compose "
2107 "GITCONFIG_AUTHOR_EMAIL_REQUEST");
2109 return flush_imsg(ibuf);
2112 const struct got_error *
2113 got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
2115 if (imsg_compose(ibuf,
2116 GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2117 return got_error_from_errno("imsg_compose "
2118 "GITCONFIG_REMOTE_REQUEST");
2120 return flush_imsg(ibuf);
2123 const struct got_error *
2124 got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf)
2126 if (imsg_compose(ibuf,
2127 GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL, 0) == -1)
2128 return got_error_from_errno("imsg_compose "
2129 "GITCONFIG_OWNER_REQUEST");
2131 return flush_imsg(ibuf);
2134 const struct got_error *
2135 got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
2137 const struct got_error *err = NULL;
2143 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2146 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2148 switch (imsg.hdr.type) {
2149 case GOT_IMSG_GITCONFIG_STR_VAL:
2152 /* datalen does not include terminating \0 */
2153 *str = malloc(datalen + 1);
2155 err = got_error_from_errno("malloc");
2158 memcpy(*str, imsg.data, datalen);
2159 (*str)[datalen] = '\0';
2162 err = got_error(GOT_ERR_PRIVSEP_MSG);
2170 const struct got_error *
2171 got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
2173 const struct got_error *err = NULL;
2176 const size_t min_datalen =
2177 MIN(sizeof(struct got_imsg_error), sizeof(int));
2181 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2184 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2186 switch (imsg.hdr.type) {
2187 case GOT_IMSG_GITCONFIG_INT_VAL:
2188 if (datalen != sizeof(*val)) {
2189 err = got_error(GOT_ERR_PRIVSEP_LEN);
2192 memcpy(val, imsg.data, sizeof(*val));
2195 err = got_error(GOT_ERR_PRIVSEP_MSG);
2204 free_remote_data(struct got_remote_repo *remote)
2209 free(remote->fetch_url);
2210 free(remote->send_url);
2211 for (i = 0; i < remote->nfetch_branches; i++)
2212 free(remote->fetch_branches[i]);
2213 free(remote->fetch_branches);
2214 for (i = 0; i < remote->nsend_branches; i++)
2215 free(remote->send_branches[i]);
2216 free(remote->send_branches);
2217 for (i = 0; i < remote->nfetch_refs; i++)
2218 free(remote->fetch_refs[i]);
2219 free(remote->fetch_refs);
2222 const struct got_error *
2223 got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
2224 int *nremotes, struct imsgbuf *ibuf)
2226 const struct got_error *err = NULL;
2229 struct got_imsg_remotes iremotes;
2230 struct got_imsg_remote iremote;
2234 iremotes.nremotes = 0;
2236 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
2239 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2241 switch (imsg.hdr.type) {
2242 case GOT_IMSG_GITCONFIG_REMOTES:
2243 if (datalen != sizeof(iremotes)) {
2244 err = got_error(GOT_ERR_PRIVSEP_LEN);
2247 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2248 if (iremotes.nremotes == 0) {
2255 return got_error(GOT_ERR_PRIVSEP_MSG);
2260 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2261 if (*remotes == NULL)
2262 return got_error_from_errno("recallocarray");
2264 while (*nremotes < iremotes.nremotes) {
2265 struct got_remote_repo *remote;
2267 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
2270 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2272 switch (imsg.hdr.type) {
2273 case GOT_IMSG_GITCONFIG_REMOTE:
2274 remote = &(*remotes)[*nremotes];
2275 memset(remote, 0, sizeof(*remote));
2276 if (datalen < sizeof(iremote)) {
2277 err = got_error(GOT_ERR_PRIVSEP_LEN);
2280 memcpy(&iremote, imsg.data, sizeof(iremote));
2281 if (iremote.name_len == 0 ||
2282 iremote.fetch_url_len == 0 ||
2283 iremote.send_url_len == 0 ||
2284 (sizeof(iremote) + iremote.name_len +
2285 iremote.fetch_url_len + iremote.send_url_len) > datalen) {
2286 err = got_error(GOT_ERR_PRIVSEP_LEN);
2289 remote->name = strndup(imsg.data + sizeof(iremote),
2291 if (remote->name == NULL) {
2292 err = got_error_from_errno("strndup");
2295 remote->fetch_url = strndup(imsg.data + sizeof(iremote) +
2296 iremote.name_len, iremote.fetch_url_len);
2297 if (remote->fetch_url == NULL) {
2298 err = got_error_from_errno("strndup");
2299 free_remote_data(remote);
2302 remote->send_url = strndup(imsg.data + sizeof(iremote) +
2303 iremote.name_len + iremote.fetch_url_len,
2304 iremote.send_url_len);
2305 if (remote->send_url == NULL) {
2306 err = got_error_from_errno("strndup");
2307 free_remote_data(remote);
2310 remote->mirror_references = iremote.mirror_references;
2311 remote->fetch_all_branches = iremote.fetch_all_branches;
2312 remote->nfetch_branches = 0;
2313 remote->fetch_branches = NULL;
2314 remote->nsend_branches = 0;
2315 remote->send_branches = NULL;
2316 remote->nfetch_refs = 0;
2317 remote->fetch_refs = NULL;
2321 err = got_error(GOT_ERR_PRIVSEP_MSG);
2332 for (i = 0; i < *nremotes; i++)
2333 free_remote_data(&(*remotes)[i]);
2341 const struct got_error *
2342 got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd)
2344 const struct got_error *err = NULL;
2346 if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd,
2348 err = got_error_from_errno("imsg_compose "
2349 "GOTCONFIG_PARSE_REQUEST");
2354 return flush_imsg(ibuf);
2357 const struct got_error *
2358 got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf)
2360 if (imsg_compose(ibuf,
2361 GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL, 0) == -1)
2362 return got_error_from_errno("imsg_compose "
2363 "GOTCONFIG_AUTHOR_REQUEST");
2365 return flush_imsg(ibuf);
2368 const struct got_error *
2369 got_privsep_send_gotconfig_allowed_signers_req(struct imsgbuf *ibuf)
2371 if (imsg_compose(ibuf,
2372 GOT_IMSG_GOTCONFIG_ALLOWEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2373 return got_error_from_errno("imsg_compose "
2374 "GOTCONFIG_ALLOWEDSIGNERS_REQUEST");
2376 return flush_imsg(ibuf);
2379 const struct got_error *
2380 got_privsep_send_gotconfig_revoked_signers_req(struct imsgbuf *ibuf)
2382 if (imsg_compose(ibuf,
2383 GOT_IMSG_GOTCONFIG_REVOKEDSIGNERS_REQUEST, 0, 0, -1, NULL, 0) == -1)
2384 return got_error_from_errno("imsg_compose "
2385 "GOTCONFIG_REVOKEDSIGNERS_REQUEST");
2387 return flush_imsg(ibuf);
2390 const struct got_error *
2391 got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf)
2393 if (imsg_compose(ibuf,
2394 GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2395 return got_error_from_errno("imsg_compose "
2396 "GOTCONFIG_REMOTE_REQUEST");
2398 return flush_imsg(ibuf);
2401 const struct got_error *
2402 got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf)
2404 const struct got_error *err = NULL;
2410 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2413 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2415 switch (imsg.hdr.type) {
2416 case GOT_IMSG_ERROR:
2417 err = recv_imsg_error(&imsg, datalen);
2419 case GOT_IMSG_GOTCONFIG_STR_VAL:
2422 /* datalen does not include terminating \0 */
2423 *str = malloc(datalen + 1);
2425 err = got_error_from_errno("malloc");
2428 memcpy(*str, imsg.data, datalen);
2429 (*str)[datalen] = '\0';
2432 err = got_error(GOT_ERR_PRIVSEP_MSG);
2440 const struct got_error *
2441 got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes,
2442 int *nremotes, struct imsgbuf *ibuf)
2444 const struct got_error *err = NULL;
2447 struct got_imsg_remotes iremotes;
2448 struct got_imsg_remote iremote;
2449 const size_t min_datalen =
2450 MIN(sizeof(struct got_imsg_error), sizeof(iremotes));
2454 iremotes.nremotes = 0;
2456 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2459 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2461 switch (imsg.hdr.type) {
2462 case GOT_IMSG_ERROR:
2463 err = recv_imsg_error(&imsg, datalen);
2465 case GOT_IMSG_GOTCONFIG_REMOTES:
2466 if (datalen != sizeof(iremotes)) {
2467 err = got_error(GOT_ERR_PRIVSEP_LEN);
2470 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2471 if (iremotes.nremotes < 0) {
2472 err = got_error(GOT_ERR_PRIVSEP_LEN);
2475 if (iremotes.nremotes == 0) {
2482 return got_error(GOT_ERR_PRIVSEP_MSG);
2487 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2488 if (*remotes == NULL)
2489 return got_error_from_errno("recallocarray");
2491 while (*nremotes < iremotes.nremotes) {
2492 struct got_remote_repo *remote;
2493 const size_t min_datalen =
2494 MIN(sizeof(struct got_imsg_error), sizeof(iremote));
2497 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2500 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2502 switch (imsg.hdr.type) {
2503 case GOT_IMSG_ERROR:
2504 err = recv_imsg_error(&imsg, datalen);
2506 case GOT_IMSG_GOTCONFIG_REMOTE:
2507 remote = &(*remotes)[*nremotes];
2508 memset(remote, 0, sizeof(*remote));
2509 if (datalen < sizeof(iremote)) {
2510 err = got_error(GOT_ERR_PRIVSEP_LEN);
2513 memcpy(&iremote, imsg.data, sizeof(iremote));
2514 if (iremote.name_len == 0 ||
2515 (iremote.fetch_url_len == 0 &&
2516 iremote.send_url_len == 0) ||
2517 (sizeof(iremote) + iremote.name_len +
2518 iremote.fetch_url_len + iremote.send_url_len) >
2520 err = got_error(GOT_ERR_PRIVSEP_LEN);
2523 remote->name = strndup(imsg.data + sizeof(iremote),
2525 if (remote->name == NULL) {
2526 err = got_error_from_errno("strndup");
2529 remote->fetch_url = strndup(imsg.data +
2530 sizeof(iremote) + iremote.name_len,
2531 iremote.fetch_url_len);
2532 if (remote->fetch_url == NULL) {
2533 err = got_error_from_errno("strndup");
2534 free_remote_data(remote);
2537 remote->send_url = strndup(imsg.data +
2538 sizeof(iremote) + iremote.name_len +
2539 iremote.fetch_url_len, iremote.send_url_len);
2540 if (remote->send_url == NULL) {
2541 err = got_error_from_errno("strndup");
2542 free_remote_data(remote);
2545 remote->mirror_references = iremote.mirror_references;
2546 remote->fetch_all_branches = iremote.fetch_all_branches;
2547 if (iremote.nfetch_branches > 0) {
2548 remote->fetch_branches = recallocarray(NULL, 0,
2549 iremote.nfetch_branches, sizeof(char *));
2550 if (remote->fetch_branches == NULL) {
2551 err = got_error_from_errno("calloc");
2552 free_remote_data(remote);
2556 remote->nfetch_branches = 0;
2557 for (i = 0; i < iremote.nfetch_branches; i++) {
2559 err = got_privsep_recv_gotconfig_str(&branch,
2562 free_remote_data(remote);
2565 remote->fetch_branches[i] = branch;
2566 remote->nfetch_branches++;
2568 if (iremote.nsend_branches > 0) {
2569 remote->send_branches = recallocarray(NULL, 0,
2570 iremote.nsend_branches, sizeof(char *));
2571 if (remote->send_branches == NULL) {
2572 err = got_error_from_errno("calloc");
2573 free_remote_data(remote);
2577 remote->nsend_branches = 0;
2578 for (i = 0; i < iremote.nsend_branches; i++) {
2580 err = got_privsep_recv_gotconfig_str(&branch,
2583 free_remote_data(remote);
2586 remote->send_branches[i] = branch;
2587 remote->nsend_branches++;
2589 if (iremote.nfetch_refs > 0) {
2590 remote->fetch_refs = recallocarray(NULL, 0,
2591 iremote.nfetch_refs, sizeof(char *));
2592 if (remote->fetch_refs == NULL) {
2593 err = got_error_from_errno("calloc");
2594 free_remote_data(remote);
2598 remote->nfetch_refs = 0;
2599 for (i = 0; i < iremote.nfetch_refs; i++) {
2601 err = got_privsep_recv_gotconfig_str(&ref,
2604 free_remote_data(remote);
2607 remote->fetch_refs[i] = ref;
2608 remote->nfetch_refs++;
2613 err = got_error(GOT_ERR_PRIVSEP_MSG);
2624 for (i = 0; i < *nremotes; i++)
2625 free_remote_data(&(*remotes)[i]);
2633 const struct got_error *
2634 got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf,
2635 struct got_object_id *id, int idx, const char *path)
2638 size_t path_len = strlen(path) + 1;
2640 wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0,
2641 sizeof(struct got_imsg_commit_traversal_request) + path_len);
2643 return got_error_from_errno(
2644 "imsg_create COMMIT_TRAVERSAL_REQUEST");
2645 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
2646 return got_error_from_errno("imsg_add "
2647 "COMMIT_TRAVERSAL_REQUEST");
2648 if (imsg_add(wbuf, &idx, sizeof(idx)) == -1)
2649 return got_error_from_errno("imsg_add "
2650 "COMMIT_TRAVERSAL_REQUEST");
2651 if (imsg_add(wbuf, path, path_len) == -1)
2652 return got_error_from_errno("imsg_add "
2653 "COMMIT_TRAVERSAL_REQUEST");
2656 imsg_close(ibuf, wbuf);
2658 return flush_imsg(ibuf);
2661 const struct got_error *
2662 got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit,
2663 struct got_object_id **changed_commit_id,
2664 struct got_object_id_queue *commit_ids, struct imsgbuf *ibuf)
2666 const struct got_error *err = NULL;
2668 struct got_imsg_traversed_commits *icommits;
2672 *changed_commit = NULL;
2673 *changed_commit_id = NULL;
2676 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2680 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2681 switch (imsg.hdr.type) {
2682 case GOT_IMSG_TRAVERSED_COMMITS:
2683 icommits = imsg.data;
2684 if (datalen != sizeof(*icommits) +
2685 icommits->ncommits * SHA1_DIGEST_LENGTH) {
2686 err = got_error(GOT_ERR_PRIVSEP_LEN);
2689 for (i = 0; i < icommits->ncommits; i++) {
2690 struct got_object_qid *qid;
2691 uint8_t *sha1 = (uint8_t *)imsg.data +
2692 sizeof(*icommits) + i * SHA1_DIGEST_LENGTH;
2693 err = got_object_qid_alloc_partial(&qid);
2696 memcpy(qid->id.sha1, sha1, SHA1_DIGEST_LENGTH);
2697 STAILQ_INSERT_TAIL(commit_ids, qid, entry);
2699 /* The last commit may contain a change. */
2700 if (i == icommits->ncommits - 1) {
2701 *changed_commit_id =
2702 got_object_id_dup(&qid->id);
2703 if (*changed_commit_id == NULL) {
2704 err = got_error_from_errno(
2705 "got_object_id_dup");
2711 case GOT_IMSG_COMMIT:
2712 if (*changed_commit_id == NULL) {
2713 err = got_error(GOT_ERR_PRIVSEP_MSG);
2716 err = get_commit_from_imsg(changed_commit, &imsg,
2719 case GOT_IMSG_COMMIT_TRAVERSAL_DONE:
2723 err = got_error(GOT_ERR_PRIVSEP_MSG);
2733 got_object_id_queue_free(commit_ids);
2737 const struct got_error *
2738 got_privsep_send_enumerated_tree(size_t *totlen, struct imsgbuf *ibuf,
2739 struct got_object_id *tree_id, const char *path,
2740 struct got_parsed_tree_entry *entries, int nentries)
2742 const struct got_error *err = NULL;
2744 size_t path_len = strlen(path);
2747 msglen = sizeof(struct got_imsg_enumerated_tree) + path_len;
2748 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_TREE, 0, 0, msglen);
2750 return got_error_from_errno("imsg_create ENUMERATED_TREE");
2752 if (imsg_add(wbuf, tree_id->sha1, SHA1_DIGEST_LENGTH) == -1)
2753 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2754 if (imsg_add(wbuf, &nentries, sizeof(nentries)) == -1)
2755 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2756 if (imsg_add(wbuf, path, path_len) == -1)
2757 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2760 imsg_close(ibuf, wbuf);
2763 err = send_tree_entries(ibuf, entries, nentries);
2768 return flush_imsg(ibuf);
2771 const struct got_error *
2772 got_privsep_send_object_enumeration_request(struct imsgbuf *ibuf)
2774 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_REQUEST,
2775 0, 0, -1, NULL, 0) == -1)
2776 return got_error_from_errno("imsg_compose "
2777 "OBJECT_ENUMERATION_REQUEST");
2779 return flush_imsg(ibuf);
2782 const struct got_error *
2783 got_privsep_send_object_enumeration_done(struct imsgbuf *ibuf)
2785 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_DONE,
2786 0, 0, -1, NULL, 0) == -1)
2787 return got_error_from_errno("imsg_compose "
2788 "OBJECT_ENUMERATION_DONE");
2790 return flush_imsg(ibuf);
2793 const struct got_error *
2794 got_privsep_send_object_enumeration_incomplete(struct imsgbuf *ibuf)
2796 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE,
2797 0, 0, -1, NULL, 0) == -1)
2798 return got_error_from_errno("imsg_compose "
2799 "OBJECT_ENUMERATION_INCOMPLETE");
2801 return flush_imsg(ibuf);
2804 const struct got_error *
2805 got_privsep_send_enumerated_commit(struct imsgbuf *ibuf,
2806 struct got_object_id *id, time_t mtime)
2810 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_COMMIT, 0, 0,
2811 sizeof(struct got_imsg_enumerated_commit) + SHA1_DIGEST_LENGTH);
2813 return got_error_from_errno("imsg_create ENUMERATED_COMMIT");
2815 /* Keep in sync with struct got_imsg_enumerated_commit! */
2816 if (imsg_add(wbuf, id, SHA1_DIGEST_LENGTH) == -1)
2817 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2818 if (imsg_add(wbuf, &mtime, sizeof(mtime)) == -1)
2819 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2822 imsg_close(ibuf, wbuf);
2823 /* Don't flush yet, tree entries or ENUMERATION_DONE will follow. */
2827 const struct got_error *
2828 got_privsep_recv_enumerated_objects(int *found_all_objects,
2829 struct imsgbuf *ibuf,
2830 got_object_enumerate_commit_cb cb_commit,
2831 got_object_enumerate_tree_cb cb_tree, void *cb_arg,
2832 struct got_repository *repo)
2834 const struct got_error *err = NULL;
2836 struct got_imsg_enumerated_commit *icommit = NULL;
2837 struct got_object_id commit_id;
2838 int have_commit = 0;
2840 struct got_tree_object tree;
2841 struct got_imsg_enumerated_tree *itree;
2842 struct got_object_id tree_id;
2843 char *path = NULL, *canon_path = NULL;
2844 size_t datalen, path_len;
2848 *found_all_objects = 0;
2849 memset(&tree, 0, sizeof(tree));
2852 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2856 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2857 switch (imsg.hdr.type) {
2858 case GOT_IMSG_ENUMERATED_COMMIT:
2859 if (have_commit && nentries != -1) {
2860 err = got_error(GOT_ERR_PRIVSEP_MSG);
2863 if (datalen != sizeof(*icommit)) {
2864 err = got_error(GOT_ERR_PRIVSEP_LEN);
2867 icommit = (struct got_imsg_enumerated_commit *)imsg.data;
2868 memcpy(commit_id.sha1, icommit->id, SHA1_DIGEST_LENGTH);
2869 mtime = icommit->mtime;
2872 case GOT_IMSG_ENUMERATED_TREE:
2873 /* Should be preceeded by GOT_IMSG_ENUMERATED_COMMIT. */
2875 err = got_error(GOT_ERR_PRIVSEP_MSG);
2878 if (datalen < sizeof(*itree)) {
2879 err = got_error(GOT_ERR_PRIVSEP_LEN);
2883 path_len = datalen - sizeof(*itree);
2884 if (path_len == 0) {
2885 err = got_error(GOT_ERR_PRIVSEP_LEN);
2888 memcpy(tree_id.sha1, itree->id, sizeof(tree_id.sha1));
2890 path = malloc(path_len + 1);
2892 err = got_error_from_errno("malloc");
2896 canon_path = malloc(path_len + 1);
2897 if (canon_path == NULL) {
2898 err = got_error_from_errno("malloc");
2901 memcpy(path, (uint8_t *)imsg.data + sizeof(*itree),
2903 path[path_len] = '\0';
2904 if (!got_path_is_absolute(path)) {
2905 err = got_error(GOT_ERR_BAD_PATH);
2908 if (got_path_is_root_dir(path)) {
2909 /* XXX check what got_canonpath() does wrong */
2910 canon_path[0] = '/';
2911 canon_path[1] = '\0';
2913 err = got_canonpath(path, canon_path,
2918 if (strcmp(path, canon_path) != 0) {
2919 err = got_error(GOT_ERR_BAD_PATH);
2922 if (nentries != -1) {
2923 err = got_error(GOT_ERR_PRIVSEP_MSG);
2926 if (itree->nentries < -1) {
2927 err = got_error(GOT_ERR_PRIVSEP_MSG);
2930 if (itree->nentries == -1) {
2931 /* Tree was not found in pack file. */
2932 err = cb_tree(cb_arg, NULL, mtime, &tree_id,
2936 if (itree->nentries > INT_MAX) {
2937 err = got_error(GOT_ERR_PRIVSEP_LEN);
2940 tree.entries = calloc(itree->nentries,
2941 sizeof(struct got_tree_entry));
2942 if (tree.entries == NULL) {
2943 err = got_error_from_errno("calloc");
2946 if (itree->nentries == 0) {
2947 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2952 /* Prepare for next tree. */
2954 memset(&tree, 0, sizeof(tree));
2957 tree.nentries = itree->nentries;
2961 case GOT_IMSG_TREE_ENTRIES:
2962 /* Should be preceeded by GOT_IMSG_ENUMERATED_TREE. */
2963 if (nentries <= -1) {
2964 err = got_error(GOT_ERR_PRIVSEP_MSG);
2967 err = recv_tree_entries(imsg.data, datalen,
2971 if (tree.nentries == nentries) {
2972 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2977 /* Prepare for next tree. */
2979 memset(&tree, 0, sizeof(tree));
2983 case GOT_IMSG_TREE_ENUMERATION_DONE:
2984 /* All trees have been found and traversed. */
2985 if (!have_commit || path == NULL || nentries != -1) {
2986 err = got_error(GOT_ERR_PRIVSEP_MSG);
2989 err = cb_commit(cb_arg, mtime, &commit_id, repo);
2994 case GOT_IMSG_OBJECT_ENUMERATION_DONE:
2995 *found_all_objects = 1;
2998 case GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE:
3002 err = got_error(GOT_ERR_PRIVSEP_MSG);
3017 const struct got_error *
3018 got_privsep_send_raw_delta_req(struct imsgbuf *ibuf, int idx,
3019 struct got_object_id *id)
3021 struct got_imsg_raw_delta_request dreq;
3023 memset(&dreq, 0, sizeof(dreq));
3025 memcpy(dreq.id, id->sha1, SHA1_DIGEST_LENGTH);
3027 if (imsg_compose(ibuf, GOT_IMSG_RAW_DELTA_REQUEST, 0, 0, -1,
3028 &dreq, sizeof(dreq)) == -1)
3029 return got_error_from_errno("imsg_compose RAW_DELTA_REQUEST");
3031 return flush_imsg(ibuf);
3034 const struct got_error *
3035 got_privsep_send_raw_delta_outfd(struct imsgbuf *ibuf, int fd)
3037 return send_fd(ibuf, GOT_IMSG_RAW_DELTA_OUTFD, fd);
3040 const struct got_error *
3041 got_privsep_send_raw_delta(struct imsgbuf *ibuf, uint64_t base_size,
3042 uint64_t result_size, off_t delta_size, off_t delta_compressed_size,
3043 off_t delta_offset, off_t delta_out_offset, struct got_object_id *base_id)
3045 struct got_imsg_raw_delta idelta;
3048 memset(&idelta, 0, sizeof(idelta));
3049 idelta.base_size = base_size;
3050 idelta.result_size = result_size;
3051 idelta.delta_size = delta_size;
3052 idelta.delta_compressed_size = delta_compressed_size;
3053 idelta.delta_offset = delta_offset;
3054 idelta.delta_out_offset = delta_out_offset;
3055 memcpy(idelta.base_id, base_id->sha1, SHA1_DIGEST_LENGTH);
3057 ret = imsg_compose(ibuf, GOT_IMSG_RAW_DELTA, 0, 0, -1,
3058 &idelta, sizeof(idelta));
3060 return got_error_from_errno("imsg_compose RAW_DELTA");
3062 return flush_imsg(ibuf);
3065 const struct got_error *
3066 got_privsep_recv_raw_delta(uint64_t *base_size, uint64_t *result_size,
3067 off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
3068 off_t *delta_out_offset, struct got_object_id **base_id, struct imsgbuf *ibuf)
3070 const struct got_error *err = NULL;
3072 struct got_imsg_raw_delta *delta;
3078 *delta_compressed_size = 0;
3080 *delta_out_offset = 0;
3083 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3087 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3089 switch (imsg.hdr.type) {
3090 case GOT_IMSG_RAW_DELTA:
3091 if (datalen != sizeof(*delta)) {
3092 err = got_error(GOT_ERR_PRIVSEP_LEN);
3096 *base_size = delta->base_size;
3097 *result_size = delta->result_size;
3098 *delta_size = delta->delta_size;
3099 *delta_compressed_size = delta->delta_compressed_size;
3100 *delta_offset = delta->delta_offset;
3101 *delta_out_offset = delta->delta_out_offset;
3102 *base_id = calloc(1, sizeof(**base_id));
3103 if (*base_id == NULL) {
3104 err = got_error_from_errno("malloc");
3107 memcpy((*base_id)->sha1, delta->base_id, SHA1_DIGEST_LENGTH);
3110 err = got_error(GOT_ERR_PRIVSEP_MSG);
3123 static const struct got_error *
3124 send_idlist(struct imsgbuf *ibuf, struct got_object_id **ids, size_t nids)
3126 const struct got_error *err = NULL;
3127 struct got_imsg_object_idlist idlist;
3131 memset(&idlist, 0, sizeof(idlist));
3133 if (nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS)
3134 return got_error(GOT_ERR_NO_SPACE);
3136 wbuf = imsg_create(ibuf, GOT_IMSG_OBJ_ID_LIST, 0, 0,
3137 sizeof(idlist) + nids * sizeof(**ids));
3139 err = got_error_from_errno("imsg_create OBJ_ID_LIST");
3144 if (imsg_add(wbuf, &idlist, sizeof(idlist)) == -1)
3145 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3147 for (i = 0; i < nids; i++) {
3148 struct got_object_id *id = ids[i];
3149 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
3150 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3154 imsg_close(ibuf, wbuf);
3156 return flush_imsg(ibuf);
3159 const struct got_error *
3160 got_privsep_send_object_idlist(struct imsgbuf *ibuf,
3161 struct got_object_id **ids, size_t nids)
3163 const struct got_error *err = NULL;
3164 struct got_object_id *idlist[GOT_IMSG_OBJ_ID_LIST_MAX_NIDS];
3167 for (i = 0; i < nids; i++) {
3168 idlist[i % nitems(idlist)] = ids[i];
3170 if (queued >= nitems(idlist)) {
3171 err = send_idlist(ibuf, idlist, queued);
3179 err = send_idlist(ibuf, idlist, queued);
3187 const struct got_error *
3188 got_privsep_send_object_idlist_done(struct imsgbuf *ibuf)
3190 if (imsg_compose(ibuf, GOT_IMSG_OBJ_ID_LIST_DONE, 0, 0, -1, NULL, 0)
3192 return got_error_from_errno("imsg_compose OBJ_ID_LIST_DONE");
3194 return flush_imsg(ibuf);
3197 const struct got_error *
3198 got_privsep_recv_object_idlist(int *done, struct got_object_id **ids,
3199 size_t *nids, struct imsgbuf *ibuf)
3201 const struct got_error *err = NULL;
3203 struct got_imsg_object_idlist *idlist;
3210 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3214 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3215 switch (imsg.hdr.type) {
3216 case GOT_IMSG_OBJ_ID_LIST:
3217 if (datalen < sizeof(*idlist)) {
3218 err = got_error(GOT_ERR_PRIVSEP_LEN);
3222 if (idlist->nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3223 idlist->nids * sizeof(**ids) > datalen - sizeof(*idlist)) {
3224 err = got_error(GOT_ERR_PRIVSEP_LEN);
3227 *nids = idlist->nids;
3228 *ids = calloc(*nids, sizeof(**ids));
3230 err = got_error_from_errno("calloc");
3233 memcpy(*ids, (uint8_t *)imsg.data + sizeof(*idlist),
3234 *nids * sizeof(**ids));
3236 case GOT_IMSG_OBJ_ID_LIST_DONE:
3240 err = got_error(GOT_ERR_PRIVSEP_MSG);
3249 const struct got_error *
3250 got_privsep_send_delta_reuse_req(struct imsgbuf *ibuf)
3252 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_REQUEST, 0, 0, -1, NULL, 0)
3254 return got_error_from_errno("imsg_compose DELTA_REUSE_REQUEST");
3256 return flush_imsg(ibuf);
3259 const struct got_error *
3260 got_privsep_send_reused_deltas(struct imsgbuf *ibuf,
3261 struct got_imsg_reused_delta *deltas, size_t ndeltas)
3263 const struct got_error *err = NULL;
3265 struct got_imsg_reused_deltas ideltas;
3268 memset(&ideltas, 0, sizeof(ideltas));
3270 if (ndeltas > GOT_IMSG_REUSED_DELTAS_MAX_NDELTAS)
3271 return got_error(GOT_ERR_NO_SPACE);
3273 wbuf = imsg_create(ibuf, GOT_IMSG_REUSED_DELTAS, 0, 0,
3274 sizeof(ideltas) + ndeltas * sizeof(*deltas));
3276 err = got_error_from_errno("imsg_create REUSED_DELTAS");
3280 ideltas.ndeltas = ndeltas;
3281 if (imsg_add(wbuf, &ideltas, sizeof(ideltas)) == -1)
3282 return got_error_from_errno("imsg_add REUSED_DELTAS");
3284 for (i = 0; i < ndeltas; i++) {
3285 struct got_imsg_reused_delta *delta = &deltas[i];
3286 if (imsg_add(wbuf, delta, sizeof(*delta)) == -1)
3287 return got_error_from_errno("imsg_add REUSED_DELTAS");
3291 imsg_close(ibuf, wbuf);
3293 return flush_imsg(ibuf);
3296 const struct got_error *
3297 got_privsep_send_reused_deltas_done(struct imsgbuf *ibuf)
3299 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_DONE, 0, 0, -1, NULL, 0)
3301 return got_error_from_errno("imsg_compose DELTA_REUSE_DONE");
3303 return flush_imsg(ibuf);
3306 const struct got_error *
3307 got_privsep_recv_reused_deltas(int *done, struct got_imsg_reused_delta *deltas,
3308 size_t *ndeltas, struct imsgbuf *ibuf)
3310 const struct got_error *err = NULL;
3312 struct got_imsg_reused_deltas *ideltas;
3318 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3322 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3323 switch (imsg.hdr.type) {
3324 case GOT_IMSG_REUSED_DELTAS:
3325 if (datalen < sizeof(*ideltas)) {
3326 err = got_error(GOT_ERR_PRIVSEP_LEN);
3329 ideltas = imsg.data;
3330 if (ideltas->ndeltas > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3331 ideltas->ndeltas * sizeof(*deltas) >
3332 datalen - sizeof(*ideltas)) {
3333 err = got_error(GOT_ERR_PRIVSEP_LEN);
3336 *ndeltas = ideltas->ndeltas;
3337 memcpy(deltas, (uint8_t *)imsg.data + sizeof(*ideltas),
3338 *ndeltas * sizeof(*deltas));
3340 case GOT_IMSG_DELTA_REUSE_DONE:
3344 err = got_error(GOT_ERR_PRIVSEP_MSG);
3353 const struct got_error *
3354 got_privsep_init_commit_painting(struct imsgbuf *ibuf)
3356 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_INIT,
3359 return got_error_from_errno("imsg_compose "
3360 "COMMIT_PAINTING_INIT");
3362 return flush_imsg(ibuf);
3365 const struct got_error *
3366 got_privsep_send_painting_request(struct imsgbuf *ibuf, int idx,
3367 struct got_object_id *id, intptr_t color)
3369 struct got_imsg_commit_painting_request ireq;
3371 memset(&ireq, 0, sizeof(ireq));
3372 memcpy(ireq.id, id->sha1, sizeof(ireq.id));
3376 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_REQUEST, 0, 0, -1,
3377 &ireq, sizeof(ireq)) == -1)
3378 return got_error_from_errno("imsg_compose "
3379 "COMMIT_PAINTING_REQUEST");
3381 return flush_imsg(ibuf);
3384 static const struct got_error *
3385 send_painted_commits(struct got_object_id_queue *ids, int *nids,
3386 size_t remain, int present_in_pack, struct imsgbuf *ibuf)
3388 const struct got_error *err = NULL;
3389 struct ibuf *wbuf = NULL;
3390 struct got_object_qid *qid;
3395 msglen = MIN(remain, MAX_IMSGSIZE - IMSG_HEADER_SIZE);
3396 ncommits = (msglen - sizeof(struct got_imsg_painted_commits)) /
3397 sizeof(struct got_imsg_painted_commit);
3399 wbuf = imsg_create(ibuf, GOT_IMSG_PAINTED_COMMITS, 0, 0, msglen);
3401 err = got_error_from_errno("imsg_create PAINTED_COMMITS");
3405 /* Keep in sync with struct got_imsg_painted_commits! */
3406 if (imsg_add(wbuf, &ncommits, sizeof(ncommits)) == -1)
3407 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3408 if (imsg_add(wbuf, &present_in_pack, sizeof(present_in_pack)) == -1)
3409 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3411 while (ncommits > 0) {
3412 qid = STAILQ_FIRST(ids);
3413 STAILQ_REMOVE_HEAD(ids, entry);
3416 color = (intptr_t)qid->data;
3418 /* Keep in sync with struct got_imsg_painted_commit! */
3419 if (imsg_add(wbuf, qid->id.sha1, SHA1_DIGEST_LENGTH) == -1)
3420 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3421 if (imsg_add(wbuf, &color, sizeof(color)) == -1)
3422 return got_error_from_errno("imsg_add PAINTED_COMMITS");
3424 got_object_qid_free(qid);
3428 imsg_close(ibuf, wbuf);
3430 return flush_imsg(ibuf);
3433 const struct got_error *
3434 got_privsep_send_painted_commits(struct imsgbuf *ibuf,
3435 struct got_object_id_queue *ids, int *nids,
3436 int present_in_pack, int flush)
3438 const struct got_error *err;
3445 remain = (sizeof(struct got_imsg_painted_commits)) +
3446 *nids * sizeof(struct got_imsg_painted_commit);
3447 if (flush || remain >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
3448 err = send_painted_commits(ids, nids, remain,
3449 present_in_pack, ibuf);
3453 } while (flush && *nids > 0);
3458 const struct got_error *
3459 got_privsep_send_painting_commits_done(struct imsgbuf *ibuf)
3461 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_PAINTING_DONE,
3464 return got_error_from_errno("imsg_compose "
3465 "COMMIT_PAINTING_DONE");
3467 return flush_imsg(ibuf);
3470 const struct got_error *
3471 got_privsep_recv_painted_commits(struct got_object_id_queue *new_ids,
3472 got_privsep_recv_painted_commit_cb cb, void *cb_arg, struct imsgbuf *ibuf)
3474 const struct got_error *err = NULL;
3476 struct got_imsg_painted_commits icommits;
3477 struct got_imsg_painted_commit icommit;
3482 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3486 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3487 if (imsg.hdr.type == GOT_IMSG_COMMIT_PAINTING_DONE)
3489 if (imsg.hdr.type != GOT_IMSG_PAINTED_COMMITS)
3490 return got_error(GOT_ERR_PRIVSEP_MSG);
3492 if (datalen < sizeof(icommits))
3493 return got_error(GOT_ERR_PRIVSEP_LEN);
3494 memcpy(&icommits, imsg.data, sizeof(icommits));
3495 if (icommits.ncommits * sizeof(icommit) < icommits.ncommits ||
3496 datalen < sizeof(icommits) +
3497 icommits.ncommits * sizeof(icommit))
3498 return got_error(GOT_ERR_PRIVSEP_LEN);
3500 for (i = 0; i < icommits.ncommits; i++) {
3502 (uint8_t *)imsg.data + sizeof(icommits) + i * sizeof(icommit),
3505 if (icommits.present_in_pack) {
3506 struct got_object_id id;
3507 memcpy(id.sha1, icommit.id, SHA1_DIGEST_LENGTH);
3508 err = cb(cb_arg, &id, icommit.color);
3512 struct got_object_qid *qid;
3513 err = got_object_qid_alloc_partial(&qid);
3516 memcpy(qid->id.sha1, icommit.id,
3517 SHA1_DIGEST_LENGTH);
3518 qid->data = (void *)icommit.color;
3519 STAILQ_INSERT_TAIL(new_ids, qid, entry);
3529 const struct got_error *
3530 got_privsep_unveil_exec_helpers(void)
3532 const char *helpers[] = {
3533 GOT_PATH_PROG_READ_PACK,
3534 GOT_PATH_PROG_READ_OBJECT,
3535 GOT_PATH_PROG_READ_COMMIT,
3536 GOT_PATH_PROG_READ_TREE,
3537 GOT_PATH_PROG_READ_BLOB,
3538 GOT_PATH_PROG_READ_TAG,
3539 GOT_PATH_PROG_READ_GITCONFIG,
3540 GOT_PATH_PROG_READ_GOTCONFIG,
3541 GOT_PATH_PROG_READ_PATCH,
3542 GOT_PATH_PROG_FETCH_PACK,
3543 GOT_PATH_PROG_INDEX_PACK,
3544 GOT_PATH_PROG_SEND_PACK,
3548 for (i = 0; i < nitems(helpers); i++) {
3549 if (unveil(helpers[i], "x") == 0)
3551 return got_error_from_errno2("unveil", helpers[i]);
3558 got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
3560 if (close(imsg_fds[0]) == -1) {
3561 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3565 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
3566 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3570 closefrom(GOT_IMSG_FD_CHILD + 1);
3572 if (execl(path, path, repo_path, (char *)NULL) == -1) {
3573 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,