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>
35 #include "got_compat.h"
37 #include "got_object.h"
38 #include "got_error.h"
40 #include "got_repository.h"
42 #include "got_lib_sha1.h"
43 #include "got_lib_delta.h"
44 #include "got_lib_inflate.h"
45 #include "got_lib_object.h"
46 #include "got_lib_object_parse.h"
47 #include "got_lib_privsep.h"
48 #include "got_lib_pack.h"
51 #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
55 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
58 static const struct got_error *
59 poll_fd(int fd, int events, int timeout)
67 pfd[0].events = events;
72 if (sigemptyset(&sigset) == -1)
73 return got_error_from_errno("sigemptyset");
74 if (sigaddset(&sigset, SIGWINCH) == -1)
75 return got_error_from_errno("sigaddset");
77 n = ppoll(pfd, 1, timeout == INFTIM ? NULL : &ts, &sigset);
79 return got_error_from_errno("ppoll");
81 return got_error(GOT_ERR_TIMEOUT);
82 if (pfd[0].revents & (POLLERR | POLLNVAL))
83 return got_error_from_errno("poll error");
84 if (pfd[0].revents & (events | POLLHUP))
87 return got_error(GOT_ERR_INTERRUPT);
90 static const struct got_error *
91 read_imsg(struct imsgbuf *ibuf)
93 const struct got_error *err;
96 err = poll_fd(ibuf->fd, POLLIN, INFTIM);
102 if (errno == EAGAIN) /* Could be a file-descriptor leak. */
103 return got_error(GOT_ERR_PRIVSEP_NO_FD);
104 return got_error(GOT_ERR_PRIVSEP_READ);
107 return got_error(GOT_ERR_PRIVSEP_PIPE);
112 const struct got_error *
113 got_privsep_wait_for_child(pid_t pid)
117 if (waitpid(pid, &child_status, 0) == -1)
118 return got_error_from_errno("waitpid");
120 if (!WIFEXITED(child_status))
121 return got_error(GOT_ERR_PRIVSEP_DIED);
123 if (WEXITSTATUS(child_status) != 0)
124 return got_error(GOT_ERR_PRIVSEP_EXIT);
129 static const struct got_error *
130 recv_imsg_error(struct imsg *imsg, size_t datalen)
132 struct got_imsg_error *ierr;
134 if (datalen != sizeof(*ierr))
135 return got_error(GOT_ERR_PRIVSEP_LEN);
138 if (ierr->code == GOT_ERR_ERRNO) {
139 static struct got_error serr;
140 serr.code = GOT_ERR_ERRNO;
141 serr.msg = strerror(ierr->errno_code);
145 return got_error(ierr->code);
148 const struct got_error *
149 got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
152 const struct got_error *err;
155 n = imsg_get(ibuf, imsg);
157 return got_error_from_errno("imsg_get");
160 err = read_imsg(ibuf);
163 n = imsg_get(ibuf, imsg);
165 return got_error_from_errno("imsg_get");
168 if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
169 return got_error(GOT_ERR_PRIVSEP_LEN);
171 if (imsg->hdr.type == GOT_IMSG_ERROR) {
172 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
173 return recv_imsg_error(imsg, datalen);
179 /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
181 got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
183 const struct got_error *poll_err;
184 struct got_imsg_error ierr;
187 ierr.code = err->code;
188 if (err->code == GOT_ERR_ERRNO)
189 ierr.errno_code = errno;
192 ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
194 fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
195 getprogname(), err->code, err->msg, strerror(errno));
199 poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
201 fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
202 getprogname(), err->code, err->msg, poll_err->msg);
206 ret = imsg_flush(ibuf);
208 fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
209 getprogname(), err->code, err->msg, strerror(errno));
215 static const struct got_error *
216 flush_imsg(struct imsgbuf *ibuf)
218 const struct got_error *err;
220 err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
224 if (imsg_flush(ibuf) == -1) {
226 return got_error_from_errno("imsg_flush");
232 const struct got_error *
233 got_privsep_flush_imsg(struct imsgbuf *ibuf)
235 return flush_imsg(ibuf);
238 const struct got_error *
239 got_privsep_send_stop(int fd)
241 const struct got_error *err = NULL;
244 imsg_init(&ibuf, fd);
246 if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
247 return got_error_from_errno("imsg_compose STOP");
249 err = flush_imsg(&ibuf);
253 const struct got_error *
254 got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd,
255 struct got_object_id *id)
257 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd,
258 id, sizeof(*id)) == -1)
259 return got_error_from_errno("imsg_compose OBJECT_REQUEST");
261 return flush_imsg(ibuf);
264 const struct got_error *
265 got_privsep_send_raw_obj_req(struct imsgbuf *ibuf, int fd,
266 struct got_object_id *id)
268 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_REQUEST, 0, 0, fd,
269 id, sizeof(*id)) == -1)
270 return got_error_from_errno("imsg_compose RAW_OBJECT_REQUEST");
272 return flush_imsg(ibuf);
275 const struct got_error *
276 got_privsep_send_raw_obj_outfd(struct imsgbuf *ibuf, int outfd)
278 const struct got_error *err = NULL;
280 if (imsg_compose(ibuf, GOT_IMSG_RAW_OBJECT_OUTFD, 0, 0, outfd, NULL, 0)
282 err = got_error_from_errno("imsg_compose RAW_OBJECT_OUTFD");
287 return flush_imsg(ibuf);
290 const struct got_error *
291 got_privsep_send_raw_obj(struct imsgbuf *ibuf, off_t size, size_t hdrlen,
294 const struct got_error *err = NULL;
295 struct got_imsg_raw_obj iobj;
296 size_t len = sizeof(iobj);
299 memset(&iobj, 0, sizeof(iobj));
300 iobj.hdrlen = hdrlen;
303 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX)
304 len += (size_t)size + hdrlen;
306 wbuf = imsg_create(ibuf, GOT_IMSG_RAW_OBJECT, 0, 0, len);
308 err = got_error_from_errno("imsg_create RAW_OBJECT");
312 if (imsg_add(wbuf, &iobj, sizeof(iobj)) == -1)
313 return got_error_from_errno("imsg_add RAW_OBJECT");
315 if (data && size + hdrlen <= GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
316 if (imsg_add(wbuf, data, size + hdrlen) == -1)
317 return got_error_from_errno("imsg_add RAW_OBJECT");
321 imsg_close(ibuf, wbuf);
323 return flush_imsg(ibuf);
326 const struct got_error *
327 got_privsep_recv_raw_obj(uint8_t **outbuf, off_t *size, size_t *hdrlen,
328 struct imsgbuf *ibuf)
330 const struct got_error *err = NULL;
332 struct got_imsg_raw_obj *iobj;
337 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
341 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
343 switch (imsg.hdr.type) {
344 case GOT_IMSG_RAW_OBJECT:
345 if (datalen < sizeof(*iobj)) {
346 err = got_error(GOT_ERR_PRIVSEP_LEN);
351 *hdrlen = iobj->hdrlen;
353 if (datalen == sizeof(*iobj)) {
354 /* Data has been written to file descriptor. */
359 *size + *hdrlen > GOT_PRIVSEP_INLINE_OBJECT_DATA_MAX) {
360 err = got_error(GOT_ERR_PRIVSEP_LEN);
364 *outbuf = malloc(*size + *hdrlen);
365 if (*outbuf == NULL) {
366 err = got_error_from_errno("malloc");
369 memcpy(*outbuf, imsg.data + sizeof(*iobj), *size + *hdrlen);
372 err = got_error(GOT_ERR_PRIVSEP_MSG);
381 const struct got_error *
382 got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
383 struct got_object_id *id, int pack_idx)
385 const struct got_error *err = NULL;
386 struct got_imsg_packed_object iobj;
390 memset(&iobj, 0, sizeof(iobj));
391 if (pack_idx != -1) { /* commit is packed */
393 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
401 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, data, len)
403 err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
408 return flush_imsg(ibuf);
411 const struct got_error *
412 got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
413 struct got_object_id *id, int pack_idx)
419 len = sizeof(struct got_imsg_packed_object);
423 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
425 return got_error_from_errno("imsg_create TREE_REQUEST");
427 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
428 return got_error_from_errno("imsg_add TREE_REQUEST");
430 if (pack_idx != -1) { /* tree is packed */
431 if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1)
432 return got_error_from_errno("imsg_add TREE_REQUEST");
436 imsg_close(ibuf, wbuf);
438 return flush_imsg(ibuf);
441 const struct got_error *
442 got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
443 struct got_object_id *id, int pack_idx)
445 struct got_imsg_packed_object iobj;
449 memset(&iobj, 0, sizeof(iobj));
450 if (pack_idx != -1) { /* tag is packed */
452 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
460 if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, data, len)
462 return got_error_from_errno("imsg_compose TAG_REQUEST");
464 return flush_imsg(ibuf);
467 const struct got_error *
468 got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
469 struct got_object_id *id, int pack_idx)
471 const struct got_error *err = NULL;
472 struct got_imsg_packed_object iobj;
476 memset(&iobj, 0, sizeof(iobj));
477 if (pack_idx != -1) { /* blob is packed */
479 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
487 if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, data, len)
489 err = got_error_from_errno("imsg_compose BLOB_REQUEST");
494 return flush_imsg(ibuf);
497 const struct got_error *
498 got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
500 const struct got_error *err = NULL;
502 if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
504 err = got_error_from_errno("imsg_compose BLOB_OUTFD");
509 return flush_imsg(ibuf);
512 static const struct got_error *
513 send_fd(struct imsgbuf *ibuf, int imsg_code, int fd)
515 const struct got_error *err = NULL;
517 if (imsg_compose(ibuf, imsg_code, 0, 0, fd, NULL, 0) == -1) {
518 err = got_error_from_errno("imsg_compose TMPFD");
523 return flush_imsg(ibuf);
526 const struct got_error *
527 got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
529 return send_fd(ibuf, GOT_IMSG_TMPFD, fd);
532 const struct got_error *
533 got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
535 struct got_imsg_object iobj;
537 memset(&iobj, 0, sizeof(iobj));
539 memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id));
540 iobj.type = obj->type;
541 iobj.flags = obj->flags;
542 iobj.hdrlen = obj->hdrlen;
543 iobj.size = obj->size;
544 if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
545 iobj.pack_offset = obj->pack_offset;
546 iobj.pack_idx = obj->pack_idx;
549 if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
551 return got_error_from_errno("imsg_compose OBJECT");
553 return flush_imsg(ibuf);
556 const struct got_error *
557 got_privsep_send_fetch_req(struct imsgbuf *ibuf, int fd,
558 struct got_pathlist_head *have_refs, int fetch_all_branches,
559 struct got_pathlist_head *wanted_branches,
560 struct got_pathlist_head *wanted_refs, int list_refs_only, int verbosity)
562 const struct got_error *err = NULL;
565 struct got_pathlist_entry *pe;
566 struct got_imsg_fetch_request fetchreq;
568 memset(&fetchreq, 0, sizeof(fetchreq));
569 fetchreq.fetch_all_branches = fetch_all_branches;
570 fetchreq.list_refs_only = list_refs_only;
571 fetchreq.verbosity = verbosity;
572 TAILQ_FOREACH(pe, have_refs, entry)
573 fetchreq.n_have_refs++;
574 TAILQ_FOREACH(pe, wanted_branches, entry)
575 fetchreq.n_wanted_branches++;
576 TAILQ_FOREACH(pe, wanted_refs, entry)
577 fetchreq.n_wanted_refs++;
578 len = sizeof(struct got_imsg_fetch_request);
579 if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
581 return got_error(GOT_ERR_NO_SPACE);
584 if (imsg_compose(ibuf, GOT_IMSG_FETCH_REQUEST, 0, 0, fd,
585 &fetchreq, sizeof(fetchreq)) == -1)
586 return got_error_from_errno(
587 "imsg_compose FETCH_SERVER_PROGRESS");
589 err = flush_imsg(ibuf);
596 TAILQ_FOREACH(pe, have_refs, entry) {
597 const char *name = pe->path;
598 size_t name_len = pe->path_len;
599 struct got_object_id *id = pe->data;
601 len = sizeof(struct got_imsg_fetch_have_ref) + name_len;
602 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_HAVE_REF, 0, 0, len);
604 return got_error_from_errno("imsg_create FETCH_HAVE_REF");
606 /* Keep in sync with struct got_imsg_fetch_have_ref! */
607 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1)
608 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
609 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
610 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
611 if (imsg_add(wbuf, name, name_len) == -1)
612 return got_error_from_errno("imsg_add FETCH_HAVE_REF");
615 imsg_close(ibuf, wbuf);
616 err = flush_imsg(ibuf);
621 TAILQ_FOREACH(pe, wanted_branches, entry) {
622 const char *name = pe->path;
623 size_t name_len = pe->path_len;
625 len = sizeof(struct got_imsg_fetch_wanted_branch) + name_len;
626 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_BRANCH, 0, 0,
629 return got_error_from_errno(
630 "imsg_create FETCH_WANTED_BRANCH");
632 /* Keep in sync with struct got_imsg_fetch_wanted_branch! */
633 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
634 return got_error_from_errno(
635 "imsg_add FETCH_WANTED_BRANCH");
636 if (imsg_add(wbuf, name, name_len) == -1)
637 return got_error_from_errno(
638 "imsg_add FETCH_WANTED_BRANCH");
641 imsg_close(ibuf, wbuf);
642 err = flush_imsg(ibuf);
647 TAILQ_FOREACH(pe, wanted_refs, entry) {
648 const char *name = pe->path;
649 size_t name_len = pe->path_len;
651 len = sizeof(struct got_imsg_fetch_wanted_ref) + name_len;
652 wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_WANTED_REF, 0, 0,
655 return got_error_from_errno(
656 "imsg_create FETCH_WANTED_REF");
658 /* Keep in sync with struct got_imsg_fetch_wanted_ref! */
659 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
660 return got_error_from_errno(
661 "imsg_add FETCH_WANTED_REF");
662 if (imsg_add(wbuf, name, name_len) == -1)
663 return got_error_from_errno(
664 "imsg_add FETCH_WANTED_REF");
667 imsg_close(ibuf, wbuf);
668 err = flush_imsg(ibuf);
678 const struct got_error *
679 got_privsep_send_fetch_outfd(struct imsgbuf *ibuf, int fd)
681 return send_fd(ibuf, GOT_IMSG_FETCH_OUTFD, fd);
684 const struct got_error *
685 got_privsep_recv_fetch_progress(int *done, struct got_object_id **id,
686 char **refname, struct got_pathlist_head *symrefs, char **server_progress,
687 off_t *packfile_size, uint8_t *pack_sha1, struct imsgbuf *ibuf)
689 const struct got_error *err = NULL;
692 struct got_imsg_fetch_symrefs *isymrefs = NULL;
700 *server_progress = NULL;
702 memset(pack_sha1, 0, SHA1_DIGEST_LENGTH);
704 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
708 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
709 switch (imsg.hdr.type) {
711 err = recv_imsg_error(&imsg, datalen);
713 case GOT_IMSG_FETCH_SYMREFS:
714 if (datalen < sizeof(*isymrefs)) {
715 err = got_error(GOT_ERR_PRIVSEP_LEN);
718 if (isymrefs != NULL) {
719 err = got_error(GOT_ERR_PRIVSEP_MSG);
722 isymrefs = (struct got_imsg_fetch_symrefs *)imsg.data;
723 off = sizeof(*isymrefs);
724 remain = datalen - off;
725 for (n = 0; n < isymrefs->nsymrefs; n++) {
726 struct got_imsg_fetch_symref *s;
728 if (remain < sizeof(struct got_imsg_fetch_symref)) {
729 err = got_error(GOT_ERR_PRIVSEP_LEN);
732 s = (struct got_imsg_fetch_symref *)(imsg.data + off);
734 remain -= sizeof(*s);
735 if (remain < s->name_len) {
736 err = got_error(GOT_ERR_PRIVSEP_LEN);
739 name = strndup(imsg.data + off, s->name_len);
741 err = got_error_from_errno("strndup");
745 remain -= s->name_len;
746 if (remain < s->target_len) {
747 err = got_error(GOT_ERR_PRIVSEP_LEN);
751 target = strndup(imsg.data + off, s->target_len);
752 if (target == NULL) {
753 err = got_error_from_errno("strndup");
757 off += s->target_len;
758 remain -= s->target_len;
759 err = got_pathlist_append(symrefs, name, target);
767 case GOT_IMSG_FETCH_REF:
768 if (datalen <= SHA1_DIGEST_LENGTH) {
769 err = got_error(GOT_ERR_PRIVSEP_MSG);
772 *id = malloc(sizeof(**id));
774 err = got_error_from_errno("malloc");
777 memcpy((*id)->sha1, imsg.data, SHA1_DIGEST_LENGTH);
778 *refname = strndup(imsg.data + SHA1_DIGEST_LENGTH,
779 datalen - SHA1_DIGEST_LENGTH);
780 if (*refname == NULL) {
781 err = got_error_from_errno("strndup");
785 case GOT_IMSG_FETCH_SERVER_PROGRESS:
787 err = got_error(GOT_ERR_PRIVSEP_LEN);
790 *server_progress = strndup(imsg.data, datalen);
791 if (*server_progress == NULL) {
792 err = got_error_from_errno("strndup");
795 for (i = 0; i < datalen; i++) {
796 if (!isprint((unsigned char)(*server_progress)[i]) &&
797 !isspace((unsigned char)(*server_progress)[i])) {
798 err = got_error(GOT_ERR_PRIVSEP_MSG);
799 free(*server_progress);
800 *server_progress = NULL;
805 case GOT_IMSG_FETCH_DOWNLOAD_PROGRESS:
806 if (datalen < sizeof(*packfile_size)) {
807 err = got_error(GOT_ERR_PRIVSEP_MSG);
810 memcpy(packfile_size, imsg.data, sizeof(*packfile_size));
812 case GOT_IMSG_FETCH_DONE:
813 if (datalen != SHA1_DIGEST_LENGTH) {
814 err = got_error(GOT_ERR_PRIVSEP_MSG);
817 memcpy(pack_sha1, imsg.data, SHA1_DIGEST_LENGTH);
821 err = got_error(GOT_ERR_PRIVSEP_MSG);
835 static const struct got_error *
836 send_send_ref(const char *name, size_t name_len, struct got_object_id *id,
837 int delete, struct imsgbuf *ibuf)
842 len = sizeof(struct got_imsg_send_ref) + name_len;
843 wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF, 0, 0, len);
845 return got_error_from_errno("imsg_create SEND_REF");
847 /* Keep in sync with struct got_imsg_send_ref! */
848 if (imsg_add(wbuf, id->sha1, sizeof(id->sha1)) == -1)
849 return got_error_from_errno("imsg_add SEND_REF");
850 if (imsg_add(wbuf, &delete, sizeof(delete)) == -1)
851 return got_error_from_errno("imsg_add SEND_REF");
852 if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
853 return got_error_from_errno("imsg_add SEND_REF");
854 if (imsg_add(wbuf, name, name_len) == -1)
855 return got_error_from_errno("imsg_add SEND_REF");
858 imsg_close(ibuf, wbuf);
859 return flush_imsg(ibuf);
862 const struct got_error *
863 got_privsep_send_send_req(struct imsgbuf *ibuf, int fd,
864 struct got_pathlist_head *have_refs,
865 struct got_pathlist_head *delete_refs,
868 const struct got_error *err = NULL;
869 struct got_pathlist_entry *pe;
870 struct got_imsg_send_request sendreq;
871 struct got_object_id zero_id;
873 memset(&zero_id, 0, sizeof(zero_id));
874 memset(&sendreq, 0, sizeof(sendreq));
875 sendreq.verbosity = verbosity;
876 TAILQ_FOREACH(pe, have_refs, entry)
878 TAILQ_FOREACH(pe, delete_refs, entry)
880 if (imsg_compose(ibuf, GOT_IMSG_SEND_REQUEST, 0, 0, fd,
881 &sendreq, sizeof(sendreq)) == -1) {
882 err = got_error_from_errno(
883 "imsg_compose FETCH_SERVER_PROGRESS");
887 err = flush_imsg(ibuf);
892 TAILQ_FOREACH(pe, have_refs, entry) {
893 const char *name = pe->path;
894 size_t name_len = pe->path_len;
895 struct got_object_id *id = pe->data;
896 err = send_send_ref(name, name_len, id, 0, ibuf);
901 TAILQ_FOREACH(pe, delete_refs, entry) {
902 const char *name = pe->path;
903 size_t name_len = pe->path_len;
904 err = send_send_ref(name, name_len, &zero_id, 1, ibuf);
909 if (fd != -1 && close(fd) == -1 && err == NULL)
910 err = got_error_from_errno("close");
915 const struct got_error *
916 got_privsep_recv_send_remote_refs(struct got_pathlist_head *remote_refs,
917 struct imsgbuf *ibuf)
919 const struct got_error *err = NULL;
923 struct got_imsg_send_remote_ref iremote_ref;
924 struct got_object_id *id = NULL;
925 char *refname = NULL;
926 struct got_pathlist_entry *new;
929 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
932 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
933 switch (imsg.hdr.type) {
935 err = recv_imsg_error(&imsg, datalen);
937 case GOT_IMSG_SEND_REMOTE_REF:
938 if (datalen < sizeof(iremote_ref)) {
939 err = got_error(GOT_ERR_PRIVSEP_MSG);
942 memcpy(&iremote_ref, imsg.data, sizeof(iremote_ref));
943 if (datalen != sizeof(iremote_ref) +
944 iremote_ref.name_len) {
945 err = got_error(GOT_ERR_PRIVSEP_MSG);
948 id = malloc(sizeof(*id));
950 err = got_error_from_errno("malloc");
953 memcpy(id->sha1, iremote_ref.id, SHA1_DIGEST_LENGTH);
954 refname = strndup(imsg.data + sizeof(iremote_ref),
955 datalen - sizeof(iremote_ref));
956 if (refname == NULL) {
957 err = got_error_from_errno("strndup");
960 err = got_pathlist_insert(&new, remote_refs,
964 if (new == NULL) { /* duplicate which wasn't inserted */
971 case GOT_IMSG_SEND_PACK_REQUEST:
973 err = got_error(GOT_ERR_PRIVSEP_MSG);
976 /* got-send-pack is now waiting for a pack file. */
980 err = got_error(GOT_ERR_PRIVSEP_MSG);
991 const struct got_error *
992 got_privsep_send_packfd(struct imsgbuf *ibuf, int fd)
994 return send_fd(ibuf, GOT_IMSG_SEND_PACKFD, fd);
997 const struct got_error *
998 got_privsep_recv_send_progress(int *done, off_t *bytes_sent,
999 int *success, char **refname, struct imsgbuf *ibuf)
1001 const struct got_error *err = NULL;
1004 struct got_imsg_send_ref_status iref_status;
1006 /* Do not reset the current value of 'bytes_sent', it accumulates. */
1011 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1015 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1016 switch (imsg.hdr.type) {
1017 case GOT_IMSG_ERROR:
1018 err = recv_imsg_error(&imsg, datalen);
1020 case GOT_IMSG_SEND_UPLOAD_PROGRESS:
1021 if (datalen < sizeof(*bytes_sent)) {
1022 err = got_error(GOT_ERR_PRIVSEP_MSG);
1025 memcpy(bytes_sent, imsg.data, sizeof(*bytes_sent));
1027 case GOT_IMSG_SEND_REF_STATUS:
1028 if (datalen < sizeof(iref_status)) {
1029 err = got_error(GOT_ERR_PRIVSEP_MSG);
1032 memcpy(&iref_status, imsg.data, sizeof(iref_status));
1033 if (datalen != sizeof(iref_status) + iref_status.name_len) {
1034 err = got_error(GOT_ERR_PRIVSEP_MSG);
1037 *success = iref_status.success;
1038 *refname = strndup(imsg.data + sizeof(iref_status),
1039 iref_status.name_len);
1041 case GOT_IMSG_SEND_DONE:
1043 err = got_error(GOT_ERR_PRIVSEP_MSG);
1049 err = got_error(GOT_ERR_PRIVSEP_MSG);
1057 const struct got_error *
1058 got_privsep_send_index_pack_req(struct imsgbuf *ibuf, uint8_t *pack_sha1,
1061 const struct got_error *err = NULL;
1063 /* Keep in sync with struct got_imsg_index_pack_request */
1064 if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_REQUEST, 0, 0, fd,
1065 pack_sha1, SHA1_DIGEST_LENGTH) == -1) {
1066 err = got_error_from_errno("imsg_compose INDEX_REQUEST");
1070 return flush_imsg(ibuf);
1073 const struct got_error *
1074 got_privsep_send_index_pack_outfd(struct imsgbuf *ibuf, int fd)
1076 return send_fd(ibuf, GOT_IMSG_IDXPACK_OUTFD, fd);
1079 const struct got_error *
1080 got_privsep_recv_index_progress(int *done, int *nobj_total,
1081 int *nobj_indexed, int *nobj_loose, int *nobj_resolved,
1082 struct imsgbuf *ibuf)
1084 const struct got_error *err = NULL;
1086 struct got_imsg_index_pack_progress *iprogress;
1094 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1098 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1099 switch (imsg.hdr.type) {
1100 case GOT_IMSG_ERROR:
1101 err = recv_imsg_error(&imsg, datalen);
1103 case GOT_IMSG_IDXPACK_PROGRESS:
1104 if (datalen < sizeof(*iprogress)) {
1105 err = got_error(GOT_ERR_PRIVSEP_LEN);
1108 iprogress = (struct got_imsg_index_pack_progress *)imsg.data;
1109 if (iprogress->nobj_total < 0 || iprogress->nobj_indexed < 0 ||
1110 iprogress->nobj_loose < 0 || iprogress->nobj_resolved < 0) {
1111 err = got_error(GOT_ERR_RANGE);
1114 *nobj_total = iprogress->nobj_total;
1115 *nobj_indexed = iprogress->nobj_indexed;
1116 *nobj_loose = iprogress->nobj_loose;
1117 *nobj_resolved = iprogress->nobj_resolved;
1119 case GOT_IMSG_IDXPACK_DONE:
1121 err = got_error(GOT_ERR_PRIVSEP_LEN);
1127 err = got_error(GOT_ERR_PRIVSEP_MSG);
1135 const struct got_error *
1136 got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
1137 struct imsgbuf *ibuf)
1139 struct got_imsg_object *iobj;
1140 size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1142 if (datalen != sizeof(*iobj))
1143 return got_error(GOT_ERR_PRIVSEP_LEN);
1146 if (iobj->pack_offset < 0)
1147 return got_error(GOT_ERR_PACK_OFFSET);
1149 *obj = calloc(1, sizeof(**obj));
1151 return got_error_from_errno("calloc");
1153 memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH);
1154 (*obj)->type = iobj->type;
1155 (*obj)->flags = iobj->flags;
1156 (*obj)->hdrlen = iobj->hdrlen;
1157 (*obj)->size = iobj->size;
1158 /* path_packfile is handled by caller */
1159 if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
1160 (*obj)->pack_offset = iobj->pack_offset;
1161 (*obj)->pack_idx = iobj->pack_idx;
1163 STAILQ_INIT(&(*obj)->deltas.entries);
1167 const struct got_error *
1168 got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
1170 const struct got_error *err = NULL;
1172 const size_t min_datalen =
1173 MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
1177 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1181 switch (imsg.hdr.type) {
1182 case GOT_IMSG_OBJECT:
1183 err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
1186 err = got_error(GOT_ERR_PRIVSEP_MSG);
1195 static const struct got_error *
1196 send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
1199 const struct got_error *err = NULL;
1200 size_t offset, remain;
1203 remain = logmsg_len;
1204 while (remain > 0) {
1205 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1207 if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
1208 commit->logmsg + offset, n) == -1) {
1209 err = got_error_from_errno("imsg_compose "
1214 err = flush_imsg(ibuf);
1225 const struct got_error *
1226 got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
1228 const struct got_error *err = NULL;
1229 struct got_imsg_commit_object *icommit;
1232 struct got_object_qid *qid;
1233 size_t author_len = strlen(commit->author);
1234 size_t committer_len = strlen(commit->committer);
1235 size_t logmsg_len = strlen(commit->logmsg);
1237 total = sizeof(*icommit) + author_len + committer_len +
1238 commit->nparents * SHA1_DIGEST_LENGTH;
1240 buf = malloc(total);
1242 return got_error_from_errno("malloc");
1244 icommit = (struct got_imsg_commit_object *)buf;
1245 memcpy(icommit->tree_id, commit->tree_id->sha1,
1246 sizeof(icommit->tree_id));
1247 icommit->author_len = author_len;
1248 icommit->author_time = commit->author_time;
1249 icommit->author_gmtoff = commit->author_gmtoff;
1250 icommit->committer_len = committer_len;
1251 icommit->committer_time = commit->committer_time;
1252 icommit->committer_gmtoff = commit->committer_gmtoff;
1253 icommit->logmsg_len = logmsg_len;
1254 icommit->nparents = commit->nparents;
1256 len = sizeof(*icommit);
1257 memcpy(buf + len, commit->author, author_len);
1259 memcpy(buf + len, commit->committer, committer_len);
1260 len += committer_len;
1261 STAILQ_FOREACH(qid, &commit->parent_ids, entry) {
1262 memcpy(buf + len, &qid->id, SHA1_DIGEST_LENGTH);
1263 len += SHA1_DIGEST_LENGTH;
1266 if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
1267 err = got_error_from_errno("imsg_compose COMMIT");
1271 if (logmsg_len == 0 ||
1272 logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1273 err = flush_imsg(ibuf);
1277 err = send_commit_logmsg(ibuf, commit, logmsg_len);
1283 static const struct got_error *
1284 get_commit_from_imsg(struct got_commit_object **commit,
1285 struct imsg *imsg, size_t datalen, struct imsgbuf *ibuf)
1287 const struct got_error *err = NULL;
1288 struct got_imsg_commit_object *icommit;
1292 if (datalen < sizeof(*icommit))
1293 return got_error(GOT_ERR_PRIVSEP_LEN);
1295 icommit = imsg->data;
1296 if (datalen != sizeof(*icommit) + icommit->author_len +
1297 icommit->committer_len +
1298 icommit->nparents * SHA1_DIGEST_LENGTH)
1299 return got_error(GOT_ERR_PRIVSEP_LEN);
1301 if (icommit->nparents < 0)
1302 return got_error(GOT_ERR_PRIVSEP_LEN);
1304 len += sizeof(*icommit);
1306 *commit = got_object_commit_alloc_partial();
1307 if (*commit == NULL)
1308 return got_error_from_errno(
1309 "got_object_commit_alloc_partial");
1311 memcpy((*commit)->tree_id->sha1, icommit->tree_id,
1312 SHA1_DIGEST_LENGTH);
1313 (*commit)->author_time = icommit->author_time;
1314 (*commit)->author_gmtoff = icommit->author_gmtoff;
1315 (*commit)->committer_time = icommit->committer_time;
1316 (*commit)->committer_gmtoff = icommit->committer_gmtoff;
1318 (*commit)->author = strndup(imsg->data + len, icommit->author_len);
1319 if ((*commit)->author == NULL) {
1320 err = got_error_from_errno("strndup");
1323 len += icommit->author_len;
1325 (*commit)->committer = strndup(imsg->data + len,
1326 icommit->committer_len);
1327 if ((*commit)->committer == NULL) {
1328 err = got_error_from_errno("strndup");
1331 len += icommit->committer_len;
1333 if (icommit->logmsg_len == 0) {
1334 (*commit)->logmsg = strdup("");
1335 if ((*commit)->logmsg == NULL) {
1336 err = got_error_from_errno("strdup");
1340 size_t offset = 0, remain = icommit->logmsg_len;
1342 (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
1343 if ((*commit)->logmsg == NULL) {
1344 err = got_error_from_errno("malloc");
1347 while (remain > 0) {
1348 struct imsg imsg_log;
1349 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1352 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1356 if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG) {
1357 err = got_error(GOT_ERR_PRIVSEP_MSG);
1361 memcpy((*commit)->logmsg + offset,
1363 imsg_free(&imsg_log);
1367 (*commit)->logmsg[icommit->logmsg_len] = '\0';
1370 for (i = 0; i < icommit->nparents; i++) {
1371 struct got_object_qid *qid;
1373 err = got_object_qid_alloc_partial(&qid);
1376 memcpy(&qid->id, imsg->data + len +
1377 i * SHA1_DIGEST_LENGTH, sizeof(qid->id));
1378 STAILQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
1379 (*commit)->nparents++;
1383 got_object_commit_close(*commit);
1389 const struct got_error *
1390 got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
1392 const struct got_error *err = NULL;
1395 const size_t min_datalen =
1396 MIN(sizeof(struct got_imsg_error),
1397 sizeof(struct got_imsg_commit_object));
1401 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1405 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1407 switch (imsg.hdr.type) {
1408 case GOT_IMSG_COMMIT:
1409 err = get_commit_from_imsg(commit, &imsg, datalen, ibuf);
1412 err = got_error(GOT_ERR_PRIVSEP_MSG);
1421 static const struct got_error *
1422 send_tree_entries_batch(struct imsgbuf *ibuf,
1423 struct got_parsed_tree_entry *entries, int idx0, int idxN, size_t len)
1426 struct got_imsg_tree_entries ientries;
1429 memset(&ientries, 0, sizeof(ientries));
1431 wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRIES, 0, 0, len);
1433 return got_error_from_errno("imsg_create TREE_ENTRY");
1435 ientries.nentries = idxN - idx0 + 1;
1436 if (imsg_add(wbuf, &ientries, sizeof(ientries)) == -1)
1437 return got_error_from_errno("imsg_add TREE_ENTRY");
1439 for (i = idx0; i <= idxN; i++) {
1440 struct got_parsed_tree_entry *pte = &entries[i];
1442 /* Keep in sync with struct got_imsg_tree_object definition! */
1443 if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1)
1444 return got_error_from_errno("imsg_add TREE_ENTRY");
1445 if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1)
1446 return got_error_from_errno("imsg_add TREE_ENTRY");
1447 if (imsg_add(wbuf, &pte->namelen, sizeof(pte->namelen)) == -1)
1448 return got_error_from_errno("imsg_add TREE_ENTRY");
1450 /* Remaining bytes are the entry's name. */
1451 if (imsg_add(wbuf, pte->name, pte->namelen) == -1)
1452 return got_error_from_errno("imsg_add TREE_ENTRY");
1456 imsg_close(ibuf, wbuf);
1460 static const struct got_error *
1461 send_tree_entries(struct imsgbuf *ibuf, struct got_parsed_tree_entry *entries,
1464 const struct got_error *err = NULL;
1466 size_t entries_len = sizeof(struct got_imsg_tree_entries);
1469 for (j = 0; j < nentries; j++) {
1470 struct got_parsed_tree_entry *pte = &entries[j];
1471 size_t len = sizeof(*pte) + pte->namelen;
1474 entries_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1475 err = send_tree_entries_batch(ibuf, entries,
1476 i, j - 1, entries_len);
1480 entries_len = sizeof(struct got_imsg_tree_entries);
1487 err = send_tree_entries_batch(ibuf, entries, i, j - 1,
1496 const struct got_error *
1497 got_privsep_send_tree(struct imsgbuf *ibuf,
1498 struct got_parsed_tree_entry *entries, int nentries)
1500 const struct got_error *err = NULL;
1501 struct got_imsg_tree_object itree;
1503 memset(&itree, 0, sizeof(itree));
1504 itree.nentries = nentries;
1505 if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
1507 return got_error_from_errno("imsg_compose TREE");
1509 err = send_tree_entries(ibuf, entries, nentries);
1513 return flush_imsg(ibuf);
1517 static const struct got_error *
1518 recv_tree_entries(void *data, size_t datalen, struct got_tree_object *tree,
1521 const struct got_error *err = NULL;
1522 struct got_imsg_tree_entries *ientries;
1523 struct got_tree_entry *te;
1527 if (datalen <= sizeof(*ientries) ||
1528 datalen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
1529 return got_error(GOT_ERR_PRIVSEP_LEN);
1531 ientries = (struct got_imsg_tree_entries *)data;
1532 if (ientries->nentries > INT_MAX) {
1533 return got_error_msg(GOT_ERR_NO_SPACE,
1534 "too many tree entries");
1537 te_offset = sizeof(*ientries);
1538 for (i = 0; i < ientries->nentries; i++) {
1539 struct got_imsg_tree_entry ite;
1540 const char *te_name;
1541 uint8_t *buf = (uint8_t *)data + te_offset;
1543 if (te_offset >= datalen) {
1544 err = got_error(GOT_ERR_PRIVSEP_LEN);
1548 /* Might not be aligned, size is ~32 bytes. */
1549 memcpy(&ite, buf, sizeof(ite));
1551 if (ite.namelen >= sizeof(te->name)) {
1552 err = got_error(GOT_ERR_PRIVSEP_LEN);
1555 if (te_offset + sizeof(ite) + ite.namelen > datalen) {
1556 err = got_error(GOT_ERR_PRIVSEP_LEN);
1560 if (*nentries >= tree->nentries) {
1561 err = got_error(GOT_ERR_PRIVSEP_LEN);
1564 te = &tree->entries[*nentries];
1565 te_name = buf + sizeof(ite);
1566 memcpy(te->name, te_name, ite.namelen);
1567 te->name[ite.namelen] = '\0';
1568 memcpy(te->id.sha1, ite.id, SHA1_DIGEST_LENGTH);
1569 te->mode = ite.mode;
1570 te->idx = *nentries;
1573 te_offset += sizeof(ite) + ite.namelen;
1579 const struct got_error *
1580 got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
1582 const struct got_error *err = NULL;
1583 const size_t min_datalen =
1584 MIN(sizeof(struct got_imsg_error),
1585 sizeof(struct got_imsg_tree_object));
1586 struct got_imsg_tree_object *itree;
1591 err = read_imsg(ibuf);
1600 n = imsg_get(ibuf, &imsg);
1603 if (nentries < (*tree)->nentries) {
1604 err = read_imsg(ibuf);
1611 err = got_error(GOT_ERR_PRIVSEP_MSG);
1616 if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen) {
1618 err = got_error(GOT_ERR_PRIVSEP_LEN);
1622 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1624 switch (imsg.hdr.type) {
1625 case GOT_IMSG_ERROR:
1626 err = recv_imsg_error(&imsg, datalen);
1629 /* This message should only appear once. */
1630 if (*tree != NULL) {
1631 err = got_error(GOT_ERR_PRIVSEP_MSG);
1634 if (datalen != sizeof(*itree)) {
1635 err = got_error(GOT_ERR_PRIVSEP_LEN);
1639 if (itree->nentries < 0) {
1640 err = got_error(GOT_ERR_PRIVSEP_LEN);
1643 *tree = malloc(sizeof(**tree));
1644 if (*tree == NULL) {
1645 err = got_error_from_errno("malloc");
1648 (*tree)->entries = calloc(itree->nentries,
1649 sizeof(struct got_tree_entry));
1650 if ((*tree)->entries == NULL) {
1651 err = got_error_from_errno("malloc");
1656 (*tree)->nentries = itree->nentries;
1657 (*tree)->refcnt = 0;
1659 case GOT_IMSG_TREE_ENTRIES:
1660 /* This message should be preceeded by GOT_IMSG_TREE. */
1661 if (*tree == NULL) {
1662 err = got_error(GOT_ERR_PRIVSEP_MSG);
1665 err = recv_tree_entries(imsg.data, datalen,
1669 err = got_error(GOT_ERR_PRIVSEP_MSG);
1678 if (*tree && (*tree)->nentries != nentries) {
1680 err = got_error(GOT_ERR_PRIVSEP_LEN);
1681 got_object_tree_close(*tree);
1688 const struct got_error *
1689 got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
1690 const uint8_t *data)
1692 struct got_imsg_blob iblob;
1694 memset(&iblob, 0, sizeof(iblob));
1696 iblob.hdrlen = hdrlen;
1701 if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
1702 return got_error(GOT_ERR_NO_SPACE);
1704 buf = malloc(sizeof(iblob) + size);
1706 return got_error_from_errno("malloc");
1708 memcpy(buf, &iblob, sizeof(iblob));
1709 memcpy(buf + sizeof(iblob), data, size);
1710 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
1711 sizeof(iblob) + size) == -1) {
1713 return got_error_from_errno("imsg_compose BLOB");
1717 /* Data has already been written to file descriptor. */
1718 if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
1719 sizeof(iblob)) == -1)
1720 return got_error_from_errno("imsg_compose BLOB");
1724 return flush_imsg(ibuf);
1727 const struct got_error *
1728 got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1729 struct imsgbuf *ibuf)
1731 const struct got_error *err = NULL;
1733 struct got_imsg_blob *iblob;
1738 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
1742 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1744 switch (imsg.hdr.type) {
1746 if (datalen < sizeof(*iblob)) {
1747 err = got_error(GOT_ERR_PRIVSEP_LEN);
1751 *size = iblob->size;
1752 *hdrlen = iblob->hdrlen;
1754 if (datalen == sizeof(*iblob)) {
1755 /* Data has been written to file descriptor. */
1759 if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX ||
1760 *size > datalen + sizeof(*iblob)) {
1761 err = got_error(GOT_ERR_PRIVSEP_LEN);
1765 *outbuf = malloc(*size);
1766 if (*outbuf == NULL) {
1767 err = got_error_from_errno("malloc");
1770 memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
1773 err = got_error(GOT_ERR_PRIVSEP_MSG);
1782 static const struct got_error *
1783 send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
1785 const struct got_error *err = NULL;
1786 size_t offset, remain;
1789 remain = tagmsg_len;
1790 while (remain > 0) {
1791 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
1793 if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
1794 tag->tagmsg + offset, n) == -1) {
1795 err = got_error_from_errno("imsg_compose TAG_TAGMSG");
1799 err = flush_imsg(ibuf);
1810 const struct got_error *
1811 got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1813 const struct got_error *err = NULL;
1814 struct got_imsg_tag_object *itag;
1817 size_t tag_len = strlen(tag->tag);
1818 size_t tagger_len = strlen(tag->tagger);
1819 size_t tagmsg_len = strlen(tag->tagmsg);
1821 total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1823 buf = malloc(total);
1825 return got_error_from_errno("malloc");
1827 itag = (struct got_imsg_tag_object *)buf;
1828 memcpy(itag->id, tag->id.sha1, sizeof(itag->id));
1829 itag->obj_type = tag->obj_type;
1830 itag->tag_len = tag_len;
1831 itag->tagger_len = tagger_len;
1832 itag->tagger_time = tag->tagger_time;
1833 itag->tagger_gmtoff = tag->tagger_gmtoff;
1834 itag->tagmsg_len = tagmsg_len;
1836 len = sizeof(*itag);
1837 memcpy(buf + len, tag->tag, tag_len);
1839 memcpy(buf + len, tag->tagger, tagger_len);
1842 if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1843 err = got_error_from_errno("imsg_compose TAG");
1847 if (tagmsg_len == 0 ||
1848 tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1849 err = flush_imsg(ibuf);
1853 err = send_tagmsg(ibuf, tag, tagmsg_len);
1859 const struct got_error *
1860 got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1862 const struct got_error *err = NULL;
1864 struct got_imsg_tag_object *itag;
1865 size_t len, datalen;
1866 const size_t min_datalen =
1867 MIN(sizeof(struct got_imsg_error),
1868 sizeof(struct got_imsg_tag_object));
1872 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1876 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1879 switch (imsg.hdr.type) {
1881 if (datalen < sizeof(*itag)) {
1882 err = got_error(GOT_ERR_PRIVSEP_LEN);
1886 if (datalen != sizeof(*itag) + itag->tag_len +
1888 err = got_error(GOT_ERR_PRIVSEP_LEN);
1891 len += sizeof(*itag);
1893 *tag = calloc(1, sizeof(**tag));
1895 err = got_error_from_errno("calloc");
1899 memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH);
1901 (*tag)->tag = strndup(imsg.data + len, itag->tag_len);
1902 if ((*tag)->tag == NULL) {
1903 err = got_error_from_errno("strndup");
1906 len += itag->tag_len;
1908 (*tag)->obj_type = itag->obj_type;
1909 (*tag)->tagger_time = itag->tagger_time;
1910 (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1912 (*tag)->tagger = strndup(imsg.data + len, itag->tagger_len);
1913 if ((*tag)->tagger == NULL) {
1914 err = got_error_from_errno("strndup");
1917 len += itag->tagger_len;
1919 if (itag->tagmsg_len == 0) {
1920 (*tag)->tagmsg = strdup("");
1921 if ((*tag)->tagmsg == NULL) {
1922 err = got_error_from_errno("strdup");
1926 size_t offset = 0, remain = itag->tagmsg_len;
1928 (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1929 if ((*tag)->tagmsg == NULL) {
1930 err = got_error_from_errno("malloc");
1933 while (remain > 0) {
1934 struct imsg imsg_log;
1935 size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1938 err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1942 if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1943 return got_error(GOT_ERR_PRIVSEP_MSG);
1945 memcpy((*tag)->tagmsg + offset, imsg_log.data,
1947 imsg_free(&imsg_log);
1951 (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1956 err = got_error(GOT_ERR_PRIVSEP_MSG);
1965 const struct got_error *
1966 got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1967 struct got_packidx *packidx)
1969 const struct got_error *err = NULL;
1970 struct got_imsg_packidx ipackidx;
1971 struct got_imsg_pack ipack;
1974 memset(&ipackidx, 0, sizeof(ipackidx));
1975 memset(&ipack, 0, sizeof(ipack));
1977 ipackidx.len = packidx->len;
1978 ipackidx.packfile_size = pack->filesize;
1979 fd = dup(packidx->fd);
1981 return got_error_from_errno("dup");
1983 if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1984 sizeof(ipackidx)) == -1) {
1985 err = got_error_from_errno("imsg_compose PACKIDX");
1990 if (strlcpy(ipack.path_packfile, pack->path_packfile,
1991 sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1992 return got_error(GOT_ERR_NO_SPACE);
1993 ipack.filesize = pack->filesize;
1997 return got_error_from_errno("dup");
1999 if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
2001 err = got_error_from_errno("imsg_compose PACK");
2006 return flush_imsg(ibuf);
2009 const struct got_error *
2010 got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
2011 struct got_object_id *id)
2013 struct got_imsg_packed_object iobj;
2015 memset(&iobj, 0, sizeof(iobj));
2017 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2019 if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
2020 &iobj, sizeof(iobj)) == -1)
2021 return got_error_from_errno("imsg_compose "
2022 "PACKED_OBJECT_REQUEST");
2024 return flush_imsg(ibuf);
2027 const struct got_error *
2028 got_privsep_send_packed_raw_obj_req(struct imsgbuf *ibuf, int idx,
2029 struct got_object_id *id)
2031 struct got_imsg_packed_object iobj;
2033 memset(&iobj, 0, sizeof(iobj));
2035 memcpy(iobj.id, id->sha1, sizeof(iobj.id));
2037 if (imsg_compose(ibuf, GOT_IMSG_PACKED_RAW_OBJECT_REQUEST, 0, 0, -1,
2038 &iobj, sizeof(iobj)) == -1)
2039 return got_error_from_errno("imsg_compose "
2040 "PACKED_OBJECT_REQUEST");
2042 return flush_imsg(ibuf);
2045 const struct got_error *
2046 got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
2048 const struct got_error *err = NULL;
2050 if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
2052 err = got_error_from_errno("imsg_compose "
2053 "GITCONFIG_PARSE_REQUEST");
2058 return flush_imsg(ibuf);
2061 const struct got_error *
2062 got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
2064 if (imsg_compose(ibuf,
2065 GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
2067 return got_error_from_errno("imsg_compose "
2068 "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
2070 return flush_imsg(ibuf);
2073 const struct got_error *
2074 got_privsep_send_gitconfig_repository_extensions_req(struct imsgbuf *ibuf)
2076 if (imsg_compose(ibuf,
2077 GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST, 0, 0, -1,
2079 return got_error_from_errno("imsg_compose "
2080 "GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST");
2082 return flush_imsg(ibuf);
2086 const struct got_error *
2087 got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
2089 if (imsg_compose(ibuf,
2090 GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
2091 return got_error_from_errno("imsg_compose "
2092 "GITCONFIG_AUTHOR_NAME_REQUEST");
2094 return flush_imsg(ibuf);
2097 const struct got_error *
2098 got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
2100 if (imsg_compose(ibuf,
2101 GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
2102 return got_error_from_errno("imsg_compose "
2103 "GITCONFIG_AUTHOR_EMAIL_REQUEST");
2105 return flush_imsg(ibuf);
2108 const struct got_error *
2109 got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
2111 if (imsg_compose(ibuf,
2112 GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2113 return got_error_from_errno("imsg_compose "
2114 "GITCONFIG_REMOTE_REQUEST");
2116 return flush_imsg(ibuf);
2119 const struct got_error *
2120 got_privsep_send_gitconfig_owner_req(struct imsgbuf *ibuf)
2122 if (imsg_compose(ibuf,
2123 GOT_IMSG_GITCONFIG_OWNER_REQUEST, 0, 0, -1, NULL, 0) == -1)
2124 return got_error_from_errno("imsg_compose "
2125 "GITCONFIG_OWNER_REQUEST");
2127 return flush_imsg(ibuf);
2130 const struct got_error *
2131 got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
2133 const struct got_error *err = NULL;
2139 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2142 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2144 switch (imsg.hdr.type) {
2145 case GOT_IMSG_GITCONFIG_STR_VAL:
2148 /* datalen does not include terminating \0 */
2149 *str = malloc(datalen + 1);
2151 err = got_error_from_errno("malloc");
2154 memcpy(*str, imsg.data, datalen);
2155 (*str)[datalen] = '\0';
2158 err = got_error(GOT_ERR_PRIVSEP_MSG);
2166 const struct got_error *
2167 got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
2169 const struct got_error *err = NULL;
2172 const size_t min_datalen =
2173 MIN(sizeof(struct got_imsg_error), sizeof(int));
2177 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2180 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2182 switch (imsg.hdr.type) {
2183 case GOT_IMSG_GITCONFIG_INT_VAL:
2184 if (datalen != sizeof(*val)) {
2185 err = got_error(GOT_ERR_PRIVSEP_LEN);
2188 memcpy(val, imsg.data, sizeof(*val));
2191 err = got_error(GOT_ERR_PRIVSEP_MSG);
2200 free_remote_data(struct got_remote_repo *remote)
2205 free(remote->fetch_url);
2206 free(remote->send_url);
2207 for (i = 0; i < remote->nfetch_branches; i++)
2208 free(remote->fetch_branches[i]);
2209 free(remote->fetch_branches);
2210 for (i = 0; i < remote->nsend_branches; i++)
2211 free(remote->send_branches[i]);
2212 free(remote->send_branches);
2213 for (i = 0; i < remote->nfetch_refs; i++)
2214 free(remote->fetch_refs[i]);
2215 free(remote->fetch_refs);
2218 const struct got_error *
2219 got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
2220 int *nremotes, struct imsgbuf *ibuf)
2222 const struct got_error *err = NULL;
2225 struct got_imsg_remotes iremotes;
2226 struct got_imsg_remote iremote;
2230 iremotes.nremotes = 0;
2232 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
2235 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2237 switch (imsg.hdr.type) {
2238 case GOT_IMSG_GITCONFIG_REMOTES:
2239 if (datalen != sizeof(iremotes)) {
2240 err = got_error(GOT_ERR_PRIVSEP_LEN);
2243 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2244 if (iremotes.nremotes == 0) {
2251 return got_error(GOT_ERR_PRIVSEP_MSG);
2256 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2257 if (*remotes == NULL)
2258 return got_error_from_errno("recallocarray");
2260 while (*nremotes < iremotes.nremotes) {
2261 struct got_remote_repo *remote;
2263 err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
2266 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2268 switch (imsg.hdr.type) {
2269 case GOT_IMSG_GITCONFIG_REMOTE:
2270 remote = &(*remotes)[*nremotes];
2271 memset(remote, 0, sizeof(*remote));
2272 if (datalen < sizeof(iremote)) {
2273 err = got_error(GOT_ERR_PRIVSEP_LEN);
2276 memcpy(&iremote, imsg.data, sizeof(iremote));
2277 if (iremote.name_len == 0 ||
2278 iremote.fetch_url_len == 0 ||
2279 iremote.send_url_len == 0 ||
2280 (sizeof(iremote) + iremote.name_len +
2281 iremote.fetch_url_len + iremote.send_url_len) > datalen) {
2282 err = got_error(GOT_ERR_PRIVSEP_LEN);
2285 remote->name = strndup(imsg.data + sizeof(iremote),
2287 if (remote->name == NULL) {
2288 err = got_error_from_errno("strndup");
2291 remote->fetch_url = strndup(imsg.data + sizeof(iremote) +
2292 iremote.name_len, iremote.fetch_url_len);
2293 if (remote->fetch_url == NULL) {
2294 err = got_error_from_errno("strndup");
2295 free_remote_data(remote);
2298 remote->send_url = strndup(imsg.data + sizeof(iremote) +
2299 iremote.name_len + iremote.fetch_url_len,
2300 iremote.send_url_len);
2301 if (remote->send_url == NULL) {
2302 err = got_error_from_errno("strndup");
2303 free_remote_data(remote);
2306 remote->mirror_references = iremote.mirror_references;
2307 remote->fetch_all_branches = iremote.fetch_all_branches;
2308 remote->nfetch_branches = 0;
2309 remote->fetch_branches = NULL;
2310 remote->nsend_branches = 0;
2311 remote->send_branches = NULL;
2312 remote->nfetch_refs = 0;
2313 remote->fetch_refs = NULL;
2317 err = got_error(GOT_ERR_PRIVSEP_MSG);
2328 for (i = 0; i < *nremotes; i++)
2329 free_remote_data(&(*remotes)[i]);
2337 const struct got_error *
2338 got_privsep_send_gotconfig_parse_req(struct imsgbuf *ibuf, int fd)
2340 const struct got_error *err = NULL;
2342 if (imsg_compose(ibuf, GOT_IMSG_GOTCONFIG_PARSE_REQUEST, 0, 0, fd,
2344 err = got_error_from_errno("imsg_compose "
2345 "GOTCONFIG_PARSE_REQUEST");
2350 return flush_imsg(ibuf);
2353 const struct got_error *
2354 got_privsep_send_gotconfig_author_req(struct imsgbuf *ibuf)
2356 if (imsg_compose(ibuf,
2357 GOT_IMSG_GOTCONFIG_AUTHOR_REQUEST, 0, 0, -1, NULL, 0) == -1)
2358 return got_error_from_errno("imsg_compose "
2359 "GOTCONFIG_AUTHOR_REQUEST");
2361 return flush_imsg(ibuf);
2364 const struct got_error *
2365 got_privsep_send_gotconfig_remotes_req(struct imsgbuf *ibuf)
2367 if (imsg_compose(ibuf,
2368 GOT_IMSG_GOTCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
2369 return got_error_from_errno("imsg_compose "
2370 "GOTCONFIG_REMOTE_REQUEST");
2372 return flush_imsg(ibuf);
2375 const struct got_error *
2376 got_privsep_recv_gotconfig_str(char **str, struct imsgbuf *ibuf)
2378 const struct got_error *err = NULL;
2384 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2387 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2389 switch (imsg.hdr.type) {
2390 case GOT_IMSG_ERROR:
2391 err = recv_imsg_error(&imsg, datalen);
2393 case GOT_IMSG_GOTCONFIG_STR_VAL:
2396 /* datalen does not include terminating \0 */
2397 *str = malloc(datalen + 1);
2399 err = got_error_from_errno("malloc");
2402 memcpy(*str, imsg.data, datalen);
2403 (*str)[datalen] = '\0';
2406 err = got_error(GOT_ERR_PRIVSEP_MSG);
2414 const struct got_error *
2415 got_privsep_recv_gotconfig_remotes(struct got_remote_repo **remotes,
2416 int *nremotes, struct imsgbuf *ibuf)
2418 const struct got_error *err = NULL;
2421 struct got_imsg_remotes iremotes;
2422 struct got_imsg_remote iremote;
2423 const size_t min_datalen =
2424 MIN(sizeof(struct got_imsg_error), sizeof(iremotes));
2428 iremotes.nremotes = 0;
2430 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2433 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2435 switch (imsg.hdr.type) {
2436 case GOT_IMSG_ERROR:
2437 err = recv_imsg_error(&imsg, datalen);
2439 case GOT_IMSG_GOTCONFIG_REMOTES:
2440 if (datalen != sizeof(iremotes)) {
2441 err = got_error(GOT_ERR_PRIVSEP_LEN);
2444 memcpy(&iremotes, imsg.data, sizeof(iremotes));
2445 if (iremotes.nremotes < 0) {
2446 err = got_error(GOT_ERR_PRIVSEP_LEN);
2449 if (iremotes.nremotes == 0) {
2456 return got_error(GOT_ERR_PRIVSEP_MSG);
2461 *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(**remotes));
2462 if (*remotes == NULL)
2463 return got_error_from_errno("recallocarray");
2465 while (*nremotes < iremotes.nremotes) {
2466 struct got_remote_repo *remote;
2467 const size_t min_datalen =
2468 MIN(sizeof(struct got_imsg_error), sizeof(iremote));
2471 err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
2474 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2476 switch (imsg.hdr.type) {
2477 case GOT_IMSG_ERROR:
2478 err = recv_imsg_error(&imsg, datalen);
2480 case GOT_IMSG_GOTCONFIG_REMOTE:
2481 remote = &(*remotes)[*nremotes];
2482 memset(remote, 0, sizeof(*remote));
2483 if (datalen < sizeof(iremote)) {
2484 err = got_error(GOT_ERR_PRIVSEP_LEN);
2487 memcpy(&iremote, imsg.data, sizeof(iremote));
2488 if (iremote.name_len == 0 ||
2489 (iremote.fetch_url_len == 0 &&
2490 iremote.send_url_len == 0) ||
2491 (sizeof(iremote) + iremote.name_len +
2492 iremote.fetch_url_len + iremote.send_url_len) >
2494 err = got_error(GOT_ERR_PRIVSEP_LEN);
2497 remote->name = strndup(imsg.data + sizeof(iremote),
2499 if (remote->name == NULL) {
2500 err = got_error_from_errno("strndup");
2503 remote->fetch_url = strndup(imsg.data +
2504 sizeof(iremote) + iremote.name_len,
2505 iremote.fetch_url_len);
2506 if (remote->fetch_url == NULL) {
2507 err = got_error_from_errno("strndup");
2508 free_remote_data(remote);
2511 remote->send_url = strndup(imsg.data +
2512 sizeof(iremote) + iremote.name_len +
2513 iremote.fetch_url_len, iremote.send_url_len);
2514 if (remote->send_url == NULL) {
2515 err = got_error_from_errno("strndup");
2516 free_remote_data(remote);
2519 remote->mirror_references = iremote.mirror_references;
2520 remote->fetch_all_branches = iremote.fetch_all_branches;
2521 if (iremote.nfetch_branches > 0) {
2522 remote->fetch_branches = recallocarray(NULL, 0,
2523 iremote.nfetch_branches, sizeof(char *));
2524 if (remote->fetch_branches == NULL) {
2525 err = got_error_from_errno("calloc");
2526 free_remote_data(remote);
2530 remote->nfetch_branches = 0;
2531 for (i = 0; i < iremote.nfetch_branches; i++) {
2533 err = got_privsep_recv_gotconfig_str(&branch,
2536 free_remote_data(remote);
2539 remote->fetch_branches[i] = branch;
2540 remote->nfetch_branches++;
2542 if (iremote.nsend_branches > 0) {
2543 remote->send_branches = recallocarray(NULL, 0,
2544 iremote.nsend_branches, sizeof(char *));
2545 if (remote->send_branches == NULL) {
2546 err = got_error_from_errno("calloc");
2547 free_remote_data(remote);
2551 remote->nsend_branches = 0;
2552 for (i = 0; i < iremote.nsend_branches; i++) {
2554 err = got_privsep_recv_gotconfig_str(&branch,
2557 free_remote_data(remote);
2560 remote->send_branches[i] = branch;
2561 remote->nsend_branches++;
2563 if (iremote.nfetch_refs > 0) {
2564 remote->fetch_refs = recallocarray(NULL, 0,
2565 iremote.nfetch_refs, sizeof(char *));
2566 if (remote->fetch_refs == NULL) {
2567 err = got_error_from_errno("calloc");
2568 free_remote_data(remote);
2572 remote->nfetch_refs = 0;
2573 for (i = 0; i < iremote.nfetch_refs; i++) {
2575 err = got_privsep_recv_gotconfig_str(&ref,
2578 free_remote_data(remote);
2581 remote->fetch_refs[i] = ref;
2582 remote->nfetch_refs++;
2587 err = got_error(GOT_ERR_PRIVSEP_MSG);
2598 for (i = 0; i < *nremotes; i++)
2599 free_remote_data(&(*remotes)[i]);
2607 const struct got_error *
2608 got_privsep_send_commit_traversal_request(struct imsgbuf *ibuf,
2609 struct got_object_id *id, int idx, const char *path)
2612 size_t path_len = strlen(path) + 1;
2614 wbuf = imsg_create(ibuf, GOT_IMSG_COMMIT_TRAVERSAL_REQUEST, 0, 0,
2615 sizeof(struct got_imsg_commit_traversal_request) + path_len);
2617 return got_error_from_errno(
2618 "imsg_create COMMIT_TRAVERSAL_REQUEST");
2619 if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
2620 return got_error_from_errno("imsg_add "
2621 "COMMIT_TRAVERSAL_REQUEST");
2622 if (imsg_add(wbuf, &idx, sizeof(idx)) == -1)
2623 return got_error_from_errno("imsg_add "
2624 "COMMIT_TRAVERSAL_REQUEST");
2625 if (imsg_add(wbuf, path, path_len) == -1)
2626 return got_error_from_errno("imsg_add "
2627 "COMMIT_TRAVERSAL_REQUEST");
2630 imsg_close(ibuf, wbuf);
2632 return flush_imsg(ibuf);
2635 const struct got_error *
2636 got_privsep_recv_traversed_commits(struct got_commit_object **changed_commit,
2637 struct got_object_id **changed_commit_id,
2638 struct got_object_id_queue *commit_ids, struct imsgbuf *ibuf)
2640 const struct got_error *err = NULL;
2642 struct got_imsg_traversed_commits *icommits;
2646 *changed_commit = NULL;
2647 *changed_commit_id = NULL;
2650 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2654 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2655 switch (imsg.hdr.type) {
2656 case GOT_IMSG_TRAVERSED_COMMITS:
2657 icommits = imsg.data;
2658 if (datalen != sizeof(*icommits) +
2659 icommits->ncommits * SHA1_DIGEST_LENGTH) {
2660 err = got_error(GOT_ERR_PRIVSEP_LEN);
2663 for (i = 0; i < icommits->ncommits; i++) {
2664 struct got_object_qid *qid;
2665 uint8_t *sha1 = (uint8_t *)imsg.data +
2666 sizeof(*icommits) + i * SHA1_DIGEST_LENGTH;
2667 err = got_object_qid_alloc_partial(&qid);
2670 memcpy(qid->id.sha1, sha1, SHA1_DIGEST_LENGTH);
2671 STAILQ_INSERT_TAIL(commit_ids, qid, entry);
2673 /* The last commit may contain a change. */
2674 if (i == icommits->ncommits - 1) {
2675 *changed_commit_id =
2676 got_object_id_dup(&qid->id);
2677 if (*changed_commit_id == NULL) {
2678 err = got_error_from_errno(
2679 "got_object_id_dup");
2685 case GOT_IMSG_COMMIT:
2686 if (*changed_commit_id == NULL) {
2687 err = got_error(GOT_ERR_PRIVSEP_MSG);
2690 err = get_commit_from_imsg(changed_commit, &imsg,
2693 case GOT_IMSG_COMMIT_TRAVERSAL_DONE:
2697 err = got_error(GOT_ERR_PRIVSEP_MSG);
2707 got_object_id_queue_free(commit_ids);
2711 const struct got_error *
2712 got_privsep_send_enumerated_tree(size_t *totlen, struct imsgbuf *ibuf,
2713 struct got_object_id *tree_id, const char *path,
2714 struct got_parsed_tree_entry *entries, int nentries)
2716 const struct got_error *err = NULL;
2718 size_t path_len = strlen(path);
2721 msglen = sizeof(struct got_imsg_enumerated_tree) + path_len;
2722 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_TREE, 0, 0, msglen);
2724 return got_error_from_errno("imsg_create ENUMERATED_TREE");
2726 if (imsg_add(wbuf, tree_id->sha1, SHA1_DIGEST_LENGTH) == -1)
2727 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2728 if (imsg_add(wbuf, &nentries, sizeof(nentries)) == -1)
2729 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2730 if (imsg_add(wbuf, path, path_len) == -1)
2731 return got_error_from_errno("imsg_add ENUMERATED_TREE");
2734 imsg_close(ibuf, wbuf);
2737 err = send_tree_entries(ibuf, entries, nentries);
2742 return flush_imsg(ibuf);
2745 const struct got_error *
2746 got_privsep_send_object_enumeration_request(struct imsgbuf *ibuf)
2748 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_REQUEST,
2749 0, 0, -1, NULL, 0) == -1)
2750 return got_error_from_errno("imsg_compose "
2751 "OBJECT_ENUMERATION_REQUEST");
2753 return flush_imsg(ibuf);
2756 const struct got_error *
2757 got_privsep_send_object_enumeration_done(struct imsgbuf *ibuf)
2759 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_DONE,
2760 0, 0, -1, NULL, 0) == -1)
2761 return got_error_from_errno("imsg_compose "
2762 "OBJECT_ENUMERATION_DONE");
2764 return flush_imsg(ibuf);
2767 const struct got_error *
2768 got_privsep_send_object_enumeration_incomplete(struct imsgbuf *ibuf)
2770 if (imsg_compose(ibuf, GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE,
2771 0, 0, -1, NULL, 0) == -1)
2772 return got_error_from_errno("imsg_compose "
2773 "OBJECT_ENUMERATION_INCOMPLETE");
2775 return flush_imsg(ibuf);
2778 const struct got_error *
2779 got_privsep_send_enumerated_commit(struct imsgbuf *ibuf,
2780 struct got_object_id *id, time_t mtime)
2784 wbuf = imsg_create(ibuf, GOT_IMSG_ENUMERATED_COMMIT, 0, 0,
2785 sizeof(struct got_imsg_enumerated_commit) + SHA1_DIGEST_LENGTH);
2787 return got_error_from_errno("imsg_create ENUMERATED_COMMIT");
2789 /* Keep in sync with struct got_imsg_enumerated_commit! */
2790 if (imsg_add(wbuf, id, SHA1_DIGEST_LENGTH) == -1)
2791 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2792 if (imsg_add(wbuf, &mtime, sizeof(mtime)) == -1)
2793 return got_error_from_errno("imsg_add ENUMERATED_COMMIT");
2796 imsg_close(ibuf, wbuf);
2797 /* Don't flush yet, tree entries or ENUMERATION_DONE will follow. */
2801 const struct got_error *
2802 got_privsep_recv_enumerated_objects(int *found_all_objects,
2803 struct imsgbuf *ibuf,
2804 got_object_enumerate_commit_cb cb_commit,
2805 got_object_enumerate_tree_cb cb_tree, void *cb_arg,
2806 struct got_repository *repo)
2808 const struct got_error *err = NULL;
2810 struct got_imsg_enumerated_commit *icommit = NULL;
2811 struct got_object_id commit_id;
2812 int have_commit = 0;
2814 struct got_tree_object tree;
2815 struct got_imsg_enumerated_tree *itree;
2816 struct got_object_id tree_id;
2817 char *path = NULL, *canon_path = NULL;
2818 size_t datalen, path_len;
2822 *found_all_objects = 0;
2823 memset(&tree, 0, sizeof(tree));
2826 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
2830 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
2831 switch (imsg.hdr.type) {
2832 case GOT_IMSG_ENUMERATED_COMMIT:
2833 if (have_commit && nentries != -1) {
2834 err = got_error(GOT_ERR_PRIVSEP_MSG);
2837 if (datalen != sizeof(*icommit)) {
2838 err = got_error(GOT_ERR_PRIVSEP_LEN);
2841 icommit = (struct got_imsg_enumerated_commit *)imsg.data;
2842 memcpy(commit_id.sha1, icommit->id, SHA1_DIGEST_LENGTH);
2843 mtime = icommit->mtime;
2846 case GOT_IMSG_ENUMERATED_TREE:
2847 /* Should be preceeded by GOT_IMSG_ENUMERATED_COMMIT. */
2849 err = got_error(GOT_ERR_PRIVSEP_MSG);
2852 if (datalen < sizeof(*itree)) {
2853 err = got_error(GOT_ERR_PRIVSEP_LEN);
2857 path_len = datalen - sizeof(*itree);
2858 if (path_len == 0) {
2859 err = got_error(GOT_ERR_PRIVSEP_LEN);
2862 memcpy(tree_id.sha1, itree->id, sizeof(tree_id.sha1));
2864 path = malloc(path_len + 1);
2866 err = got_error_from_errno("malloc");
2870 canon_path = malloc(path_len + 1);
2871 if (canon_path == NULL) {
2872 err = got_error_from_errno("malloc");
2875 memcpy(path, (uint8_t *)imsg.data + sizeof(*itree),
2877 path[path_len] = '\0';
2878 if (!got_path_is_absolute(path)) {
2879 err = got_error(GOT_ERR_BAD_PATH);
2882 if (got_path_is_root_dir(path)) {
2883 /* XXX check what got_canonpath() does wrong */
2884 canon_path[0] = '/';
2885 canon_path[1] = '\0';
2887 err = got_canonpath(path, canon_path,
2892 if (strcmp(path, canon_path) != 0) {
2893 err = got_error(GOT_ERR_BAD_PATH);
2896 if (nentries != -1) {
2897 err = got_error(GOT_ERR_PRIVSEP_MSG);
2900 if (itree->nentries < -1) {
2901 err = got_error(GOT_ERR_PRIVSEP_MSG);
2904 if (itree->nentries == -1) {
2905 /* Tree was not found in pack file. */
2906 err = cb_tree(cb_arg, NULL, mtime, &tree_id,
2910 if (itree->nentries > INT_MAX) {
2911 err = got_error(GOT_ERR_PRIVSEP_LEN);
2914 tree.entries = calloc(itree->nentries,
2915 sizeof(struct got_tree_entry));
2916 if (tree.entries == NULL) {
2917 err = got_error_from_errno("calloc");
2920 if (itree->nentries == 0) {
2921 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2926 /* Prepare for next tree. */
2928 memset(&tree, 0, sizeof(tree));
2931 tree.nentries = itree->nentries;
2935 case GOT_IMSG_TREE_ENTRIES:
2936 /* Should be preceeded by GOT_IMSG_ENUMERATED_TREE. */
2937 if (nentries <= -1) {
2938 err = got_error(GOT_ERR_PRIVSEP_MSG);
2941 err = recv_tree_entries(imsg.data, datalen,
2945 if (tree.nentries == nentries) {
2946 err = cb_tree(cb_arg, &tree, mtime, &tree_id,
2951 /* Prepare for next tree. */
2953 memset(&tree, 0, sizeof(tree));
2957 case GOT_IMSG_TREE_ENUMERATION_DONE:
2958 /* All trees have been found and traversed. */
2959 if (!have_commit || path == NULL || nentries != -1) {
2960 err = got_error(GOT_ERR_PRIVSEP_MSG);
2963 err = cb_commit(cb_arg, mtime, &commit_id, repo);
2968 case GOT_IMSG_OBJECT_ENUMERATION_DONE:
2969 *found_all_objects = 1;
2972 case GOT_IMSG_OBJECT_ENUMERATION_INCOMPLETE:
2976 err = got_error(GOT_ERR_PRIVSEP_MSG);
2991 const struct got_error *
2992 got_privsep_send_raw_delta_req(struct imsgbuf *ibuf, int idx,
2993 struct got_object_id *id)
2995 struct got_imsg_raw_delta_request dreq;
2997 memset(&dreq, 0, sizeof(dreq));
2999 memcpy(dreq.id, id->sha1, SHA1_DIGEST_LENGTH);
3001 if (imsg_compose(ibuf, GOT_IMSG_RAW_DELTA_REQUEST, 0, 0, -1,
3002 &dreq, sizeof(dreq)) == -1)
3003 return got_error_from_errno("imsg_compose RAW_DELTA_REQUEST");
3005 return flush_imsg(ibuf);
3008 const struct got_error *
3009 got_privsep_send_raw_delta_outfd(struct imsgbuf *ibuf, int fd)
3011 return send_fd(ibuf, GOT_IMSG_RAW_DELTA_OUTFD, fd);
3014 const struct got_error *
3015 got_privsep_send_raw_delta(struct imsgbuf *ibuf, uint64_t base_size,
3016 uint64_t result_size, off_t delta_size, off_t delta_compressed_size,
3017 off_t delta_offset, off_t delta_out_offset, struct got_object_id *base_id)
3019 struct got_imsg_raw_delta idelta;
3022 memset(&idelta, 0, sizeof(idelta));
3023 idelta.base_size = base_size;
3024 idelta.result_size = result_size;
3025 idelta.delta_size = delta_size;
3026 idelta.delta_compressed_size = delta_compressed_size;
3027 idelta.delta_offset = delta_offset;
3028 idelta.delta_out_offset = delta_out_offset;
3029 memcpy(idelta.base_id, base_id->sha1, SHA1_DIGEST_LENGTH);
3031 ret = imsg_compose(ibuf, GOT_IMSG_RAW_DELTA, 0, 0, -1,
3032 &idelta, sizeof(idelta));
3034 return got_error_from_errno("imsg_compose RAW_DELTA");
3036 return flush_imsg(ibuf);
3039 const struct got_error *
3040 got_privsep_recv_raw_delta(uint64_t *base_size, uint64_t *result_size,
3041 off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
3042 off_t *delta_out_offset, struct got_object_id **base_id, struct imsgbuf *ibuf)
3044 const struct got_error *err = NULL;
3046 struct got_imsg_raw_delta *delta;
3052 *delta_compressed_size = 0;
3054 *delta_out_offset = 0;
3057 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3061 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3063 switch (imsg.hdr.type) {
3064 case GOT_IMSG_RAW_DELTA:
3065 if (datalen != sizeof(*delta)) {
3066 err = got_error(GOT_ERR_PRIVSEP_LEN);
3070 *base_size = delta->base_size;
3071 *result_size = delta->result_size;
3072 *delta_size = delta->delta_size;
3073 *delta_compressed_size = delta->delta_compressed_size;
3074 *delta_offset = delta->delta_offset;
3075 *delta_out_offset = delta->delta_out_offset;
3076 *base_id = calloc(1, sizeof(**base_id));
3077 if (*base_id == NULL) {
3078 err = got_error_from_errno("malloc");
3081 memcpy((*base_id)->sha1, delta->base_id, SHA1_DIGEST_LENGTH);
3084 err = got_error(GOT_ERR_PRIVSEP_MSG);
3097 static const struct got_error *
3098 send_idlist(struct imsgbuf *ibuf, struct got_object_id **ids, size_t nids)
3100 const struct got_error *err = NULL;
3101 struct got_imsg_object_idlist idlist;
3105 memset(&idlist, 0, sizeof(idlist));
3107 if (nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS)
3108 return got_error(GOT_ERR_NO_SPACE);
3110 wbuf = imsg_create(ibuf, GOT_IMSG_OBJ_ID_LIST, 0, 0,
3111 sizeof(idlist) + nids * sizeof(**ids));
3113 err = got_error_from_errno("imsg_create OBJ_ID_LIST");
3118 if (imsg_add(wbuf, &idlist, sizeof(idlist)) == -1)
3119 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3121 for (i = 0; i < nids; i++) {
3122 struct got_object_id *id = ids[i];
3123 if (imsg_add(wbuf, id, sizeof(*id)) == -1)
3124 return got_error_from_errno("imsg_add OBJ_ID_LIST");
3128 imsg_close(ibuf, wbuf);
3130 return flush_imsg(ibuf);
3133 const struct got_error *
3134 got_privsep_send_object_idlist(struct imsgbuf *ibuf,
3135 struct got_object_id **ids, size_t nids)
3137 const struct got_error *err = NULL;
3138 struct got_object_id *idlist[GOT_IMSG_OBJ_ID_LIST_MAX_NIDS];
3141 for (i = 0; i < nids; i++) {
3142 idlist[i % nitems(idlist)] = ids[i];
3144 if (queued >= nitems(idlist)) {
3145 err = send_idlist(ibuf, idlist, queued);
3153 err = send_idlist(ibuf, idlist, queued);
3161 const struct got_error *
3162 got_privsep_send_object_idlist_done(struct imsgbuf *ibuf)
3164 if (imsg_compose(ibuf, GOT_IMSG_OBJ_ID_LIST_DONE, 0, 0, -1, NULL, 0)
3166 return got_error_from_errno("imsg_compose OBJ_ID_LIST_DONE");
3168 return flush_imsg(ibuf);
3171 const struct got_error *
3172 got_privsep_recv_object_idlist(int *done, struct got_object_id **ids,
3173 size_t *nids, struct imsgbuf *ibuf)
3175 const struct got_error *err = NULL;
3177 struct got_imsg_object_idlist *idlist;
3184 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3188 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3189 switch (imsg.hdr.type) {
3190 case GOT_IMSG_OBJ_ID_LIST:
3191 if (datalen < sizeof(*idlist)) {
3192 err = got_error(GOT_ERR_PRIVSEP_LEN);
3196 if (idlist->nids > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3197 idlist->nids * sizeof(**ids) > datalen - sizeof(*idlist)) {
3198 err = got_error(GOT_ERR_PRIVSEP_LEN);
3201 *nids = idlist->nids;
3202 *ids = calloc(*nids, sizeof(**ids));
3204 err = got_error_from_errno("calloc");
3207 memcpy(*ids, (uint8_t *)imsg.data + sizeof(*idlist),
3208 *nids * sizeof(**ids));
3210 case GOT_IMSG_OBJ_ID_LIST_DONE:
3214 err = got_error(GOT_ERR_PRIVSEP_MSG);
3223 const struct got_error *
3224 got_privsep_send_delta_reuse_req(struct imsgbuf *ibuf)
3226 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_REQUEST, 0, 0, -1, NULL, 0)
3228 return got_error_from_errno("imsg_compose DELTA_REUSE_REQUEST");
3230 return flush_imsg(ibuf);
3233 const struct got_error *
3234 got_privsep_send_reused_deltas(struct imsgbuf *ibuf,
3235 struct got_imsg_reused_delta *deltas, size_t ndeltas)
3237 const struct got_error *err = NULL;
3239 struct got_imsg_reused_deltas ideltas;
3242 memset(&ideltas, 0, sizeof(ideltas));
3244 if (ndeltas > GOT_IMSG_REUSED_DELTAS_MAX_NDELTAS)
3245 return got_error(GOT_ERR_NO_SPACE);
3247 wbuf = imsg_create(ibuf, GOT_IMSG_REUSED_DELTAS, 0, 0,
3248 sizeof(ideltas) + ndeltas * sizeof(*deltas));
3250 err = got_error_from_errno("imsg_create REUSED_DELTAS");
3254 ideltas.ndeltas = ndeltas;
3255 if (imsg_add(wbuf, &ideltas, sizeof(ideltas)) == -1)
3256 return got_error_from_errno("imsg_add REUSED_DELTAS");
3258 for (i = 0; i < ndeltas; i++) {
3259 struct got_imsg_reused_delta *delta = &deltas[i];
3260 if (imsg_add(wbuf, delta, sizeof(*delta)) == -1)
3261 return got_error_from_errno("imsg_add REUSED_DELTAS");
3265 imsg_close(ibuf, wbuf);
3267 return flush_imsg(ibuf);
3270 const struct got_error *
3271 got_privsep_send_reused_deltas_done(struct imsgbuf *ibuf)
3273 if (imsg_compose(ibuf, GOT_IMSG_DELTA_REUSE_DONE, 0, 0, -1, NULL, 0)
3275 return got_error_from_errno("imsg_compose DELTA_REUSE_DONE");
3277 return flush_imsg(ibuf);
3280 const struct got_error *
3281 got_privsep_recv_reused_deltas(int *done, struct got_imsg_reused_delta *deltas,
3282 size_t *ndeltas, struct imsgbuf *ibuf)
3284 const struct got_error *err = NULL;
3286 struct got_imsg_reused_deltas *ideltas;
3292 err = got_privsep_recv_imsg(&imsg, ibuf, 0);
3296 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
3297 switch (imsg.hdr.type) {
3298 case GOT_IMSG_REUSED_DELTAS:
3299 if (datalen < sizeof(*ideltas)) {
3300 err = got_error(GOT_ERR_PRIVSEP_LEN);
3303 ideltas = imsg.data;
3304 if (ideltas->ndeltas > GOT_IMSG_OBJ_ID_LIST_MAX_NIDS ||
3305 ideltas->ndeltas * sizeof(*deltas) >
3306 datalen - sizeof(*ideltas)) {
3307 err = got_error(GOT_ERR_PRIVSEP_LEN);
3310 *ndeltas = ideltas->ndeltas;
3311 memcpy(deltas, (uint8_t *)imsg.data + sizeof(*ideltas),
3312 *ndeltas * sizeof(*deltas));
3314 case GOT_IMSG_DELTA_REUSE_DONE:
3318 err = got_error(GOT_ERR_PRIVSEP_MSG);
3327 const struct got_error *
3328 got_privsep_unveil_exec_helpers(void)
3330 const char *helpers[] = {
3331 GOT_PATH_PROG_READ_PACK,
3332 GOT_PATH_PROG_READ_OBJECT,
3333 GOT_PATH_PROG_READ_COMMIT,
3334 GOT_PATH_PROG_READ_TREE,
3335 GOT_PATH_PROG_READ_BLOB,
3336 GOT_PATH_PROG_READ_TAG,
3337 GOT_PATH_PROG_READ_GITCONFIG,
3338 GOT_PATH_PROG_READ_GOTCONFIG,
3339 GOT_PATH_PROG_READ_PATCH,
3340 GOT_PATH_PROG_FETCH_PACK,
3341 GOT_PATH_PROG_INDEX_PACK,
3342 GOT_PATH_PROG_SEND_PACK,
3346 for (i = 0; i < nitems(helpers); i++) {
3347 if (unveil(helpers[i], "x") == 0)
3349 return got_error_from_errno2("unveil", helpers[i]);
3356 got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
3358 if (close(imsg_fds[0]) == -1) {
3359 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3363 if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
3364 fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
3368 closefrom(GOT_IMSG_FD_CHILD + 1);
3370 if (execl(path, path, repo_path, (char *)NULL) == -1) {
3371 fprintf(stderr, "%s: %s: %s\n", getprogname(), path,