2 5aa81393 2020-01-06 stsp * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 2178c42e 2018-04-22 stsp * Permission to use, copy, modify, and distribute this software for any
5 2178c42e 2018-04-22 stsp * purpose with or without fee is hereby granted, provided that the above
6 2178c42e 2018-04-22 stsp * copyright notice and this permission notice appear in all copies.
8 2178c42e 2018-04-22 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 2178c42e 2018-04-22 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 2178c42e 2018-04-22 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 2178c42e 2018-04-22 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 2178c42e 2018-04-22 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 2178c42e 2018-04-22 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 2178c42e 2018-04-22 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 2178c42e 2018-04-22 stsp #include <sys/types.h>
18 2178c42e 2018-04-22 stsp #include <sys/queue.h>
19 2178c42e 2018-04-22 stsp #include <sys/uio.h>
20 876c234b 2018-09-10 stsp #include <sys/syslimits.h>
21 876c234b 2018-09-10 stsp #include <sys/wait.h>
23 2178c42e 2018-04-22 stsp #include <stdio.h>
24 2178c42e 2018-04-22 stsp #include <stdlib.h>
25 2178c42e 2018-04-22 stsp #include <string.h>
26 2178c42e 2018-04-22 stsp #include <errno.h>
27 2178c42e 2018-04-22 stsp #include <stdint.h>
28 2178c42e 2018-04-22 stsp #include <poll.h>
29 2178c42e 2018-04-22 stsp #include <imsg.h>
30 2178c42e 2018-04-22 stsp #include <sha1.h>
31 2178c42e 2018-04-22 stsp #include <zlib.h>
32 788c352e 2018-06-16 stsp #include <time.h>
34 2178c42e 2018-04-22 stsp #include "got_object.h"
35 2178c42e 2018-04-22 stsp #include "got_error.h"
36 3022d272 2019-11-14 stsp #include "got_path.h"
37 cd95becd 2019-11-29 stsp #include "got_repository.h"
39 2178c42e 2018-04-22 stsp #include "got_lib_sha1.h"
40 2178c42e 2018-04-22 stsp #include "got_lib_delta.h"
41 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
42 2178c42e 2018-04-22 stsp #include "got_lib_object.h"
43 a440fac0 2018-09-06 stsp #include "got_lib_object_parse.h"
44 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
45 876c234b 2018-09-10 stsp #include "got_lib_pack.h"
48 2178c42e 2018-04-22 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
51 c39c25dd 2019-08-09 stsp #ifndef nitems
52 c39c25dd 2019-08-09 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
55 2178c42e 2018-04-22 stsp static const struct got_error *
56 2178c42e 2018-04-22 stsp poll_fd(int fd, int events, int timeout)
58 2178c42e 2018-04-22 stsp struct pollfd pfd[1];
61 2178c42e 2018-04-22 stsp pfd[0].fd = fd;
62 2178c42e 2018-04-22 stsp pfd[0].events = events;
64 2178c42e 2018-04-22 stsp n = poll(pfd, 1, timeout);
65 2178c42e 2018-04-22 stsp if (n == -1)
66 638f9024 2019-05-13 stsp return got_error_from_errno("poll");
68 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_TIMEOUT);
69 2178c42e 2018-04-22 stsp if (pfd[0].revents & (POLLERR | POLLNVAL))
70 638f9024 2019-05-13 stsp return got_error_from_errno("poll error");
71 2178c42e 2018-04-22 stsp if (pfd[0].revents & (events | POLLHUP))
72 2178c42e 2018-04-22 stsp return NULL;
74 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_INTERRUPT);
77 c4eae628 2018-04-23 stsp static const struct got_error *
78 e033d803 2018-04-23 stsp read_imsg(struct imsgbuf *ibuf)
80 fe36cf76 2018-04-23 stsp const struct got_error *err;
83 fe36cf76 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLIN, INFTIM);
87 fe36cf76 2018-04-23 stsp n = imsg_read(ibuf);
88 fe36cf76 2018-04-23 stsp if (n == -1) {
89 fe36cf76 2018-04-23 stsp if (errno == EAGAIN) /* Could be a file-descriptor leak. */
90 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
91 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_READ);
94 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_PIPE);
96 e033d803 2018-04-23 stsp return NULL;
99 ad242220 2018-09-08 stsp const struct got_error *
100 876c234b 2018-09-10 stsp got_privsep_wait_for_child(pid_t pid)
102 876c234b 2018-09-10 stsp int child_status;
104 2cb49fa8 2019-05-10 stsp if (waitpid(pid, &child_status, 0) == -1)
105 638f9024 2019-05-13 stsp return got_error_from_errno("waitpid");
107 876c234b 2018-09-10 stsp if (!WIFEXITED(child_status))
108 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_DIED);
110 876c234b 2018-09-10 stsp if (WEXITSTATUS(child_status) != 0)
111 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_EXIT);
113 876c234b 2018-09-10 stsp return NULL;
116 73b7854a 2018-11-11 stsp static const struct got_error *
117 73b7854a 2018-11-11 stsp recv_imsg_error(struct imsg *imsg, size_t datalen)
119 73b7854a 2018-11-11 stsp struct got_imsg_error *ierr;
121 73b7854a 2018-11-11 stsp if (datalen != sizeof(*ierr))
122 73b7854a 2018-11-11 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
124 73b7854a 2018-11-11 stsp ierr = imsg->data;
125 73b7854a 2018-11-11 stsp if (ierr->code == GOT_ERR_ERRNO) {
126 73b7854a 2018-11-11 stsp static struct got_error serr;
127 73b7854a 2018-11-11 stsp serr.code = GOT_ERR_ERRNO;
128 73b7854a 2018-11-11 stsp serr.msg = strerror(ierr->errno_code);
129 73b7854a 2018-11-11 stsp return &serr;
132 73b7854a 2018-11-11 stsp return got_error(ierr->code);
135 876c234b 2018-09-10 stsp const struct got_error *
136 46de5bfd 2018-11-11 stsp got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
137 46de5bfd 2018-11-11 stsp size_t min_datalen)
139 e033d803 2018-04-23 stsp const struct got_error *err;
142 e033d803 2018-04-23 stsp n = imsg_get(ibuf, imsg);
143 876c234b 2018-09-10 stsp if (n == -1)
144 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_get");
146 876c234b 2018-09-10 stsp while (n == 0) {
147 876c234b 2018-09-10 stsp err = read_imsg(ibuf);
149 876c234b 2018-09-10 stsp return err;
150 876c234b 2018-09-10 stsp n = imsg_get(ibuf, imsg);
151 cbfaaf20 2020-01-06 stsp if (n == -1)
152 cbfaaf20 2020-01-06 stsp return got_error_from_errno("imsg_get");
155 fe36cf76 2018-04-23 stsp if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
156 c4eae628 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
158 73b7854a 2018-11-11 stsp if (imsg->hdr.type == GOT_IMSG_ERROR) {
159 73b7854a 2018-11-11 stsp size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
160 73b7854a 2018-11-11 stsp return recv_imsg_error(imsg, datalen);
163 73b7854a 2018-11-11 stsp return NULL;
166 2178c42e 2018-04-22 stsp /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
168 2178c42e 2018-04-22 stsp got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
170 2178c42e 2018-04-22 stsp const struct got_error *poll_err;
171 2178c42e 2018-04-22 stsp struct got_imsg_error ierr;
174 2178c42e 2018-04-22 stsp ierr.code = err->code;
175 2178c42e 2018-04-22 stsp if (err->code == GOT_ERR_ERRNO)
176 2178c42e 2018-04-22 stsp ierr.errno_code = errno;
178 2178c42e 2018-04-22 stsp ierr.errno_code = 0;
179 2178c42e 2018-04-22 stsp ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
180 e93cd828 2018-11-11 stsp if (ret == -1) {
181 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
182 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
186 2178c42e 2018-04-22 stsp poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
187 5d43e84d 2018-04-23 stsp if (poll_err) {
188 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
189 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, poll_err->msg);
193 2178c42e 2018-04-22 stsp ret = imsg_flush(ibuf);
194 5d43e84d 2018-04-23 stsp if (ret == -1) {
195 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
196 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
201 e033d803 2018-04-23 stsp static const struct got_error *
202 e033d803 2018-04-23 stsp flush_imsg(struct imsgbuf *ibuf)
204 e033d803 2018-04-23 stsp const struct got_error *err;
206 e033d803 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
208 e033d803 2018-04-23 stsp return err;
210 e033d803 2018-04-23 stsp if (imsg_flush(ibuf) == -1)
211 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_flush");
213 e033d803 2018-04-23 stsp return NULL;
216 ad242220 2018-09-08 stsp const struct got_error *
217 ad242220 2018-09-08 stsp got_privsep_send_stop(int fd)
219 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
220 ad242220 2018-09-08 stsp struct imsgbuf ibuf;
222 ad242220 2018-09-08 stsp imsg_init(&ibuf, fd);
224 ad242220 2018-09-08 stsp if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
225 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose STOP");
227 ad242220 2018-09-08 stsp err = flush_imsg(&ibuf);
228 ad242220 2018-09-08 stsp imsg_clear(&ibuf);
229 ad242220 2018-09-08 stsp return err;
232 ad242220 2018-09-08 stsp const struct got_error *
233 aea5f015 2018-12-24 stsp got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd)
235 aea5f015 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd, NULL, 0)
237 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose OBJECT_REQUEST");
239 1785f84a 2018-12-23 stsp return flush_imsg(ibuf);
242 1785f84a 2018-12-23 stsp const struct got_error *
243 1785f84a 2018-12-23 stsp got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
244 1785f84a 2018-12-23 stsp struct got_object_id *id, int pack_idx)
246 41496140 2019-02-21 stsp const struct got_error *err = NULL;
247 1785f84a 2018-12-23 stsp struct got_imsg_packed_object iobj, *iobjp;
248 1785f84a 2018-12-23 stsp size_t len;
250 1785f84a 2018-12-23 stsp if (id) { /* commit is packed */
251 1785f84a 2018-12-23 stsp iobj.idx = pack_idx;
252 1785f84a 2018-12-23 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
253 1785f84a 2018-12-23 stsp iobjp = &iobj;
254 1785f84a 2018-12-23 stsp len = sizeof(iobj);
256 1785f84a 2018-12-23 stsp iobjp = NULL;
260 1785f84a 2018-12-23 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, iobjp, len)
262 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
264 41496140 2019-02-21 stsp return err;
267 13c729f7 2018-12-24 stsp return flush_imsg(ibuf);
270 13c729f7 2018-12-24 stsp const struct got_error *
271 13c729f7 2018-12-24 stsp got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
272 13c729f7 2018-12-24 stsp struct got_object_id *id, int pack_idx)
274 41496140 2019-02-21 stsp const struct got_error *err = NULL;
275 7f358e3b 2019-11-23 stsp struct ibuf *wbuf;
276 7f358e3b 2019-11-23 stsp size_t len = id ? sizeof(struct got_imsg_packed_object) : 0;
278 7f358e3b 2019-11-23 stsp wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
279 7f358e3b 2019-11-23 stsp if (wbuf == NULL)
280 7f358e3b 2019-11-23 stsp return got_error_from_errno("imsg_create TREE_REQUEST");
282 13c729f7 2018-12-24 stsp if (id) { /* tree is packed */
283 7f358e3b 2019-11-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
284 7f358e3b 2019-11-23 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
285 7f358e3b 2019-11-23 stsp ibuf_free(wbuf);
286 7f358e3b 2019-11-23 stsp return err;
289 7f358e3b 2019-11-23 stsp if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) {
290 7f358e3b 2019-11-23 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
291 7f358e3b 2019-11-23 stsp ibuf_free(wbuf);
292 7f358e3b 2019-11-23 stsp return err;
296 7f358e3b 2019-11-23 stsp wbuf->fd = fd;
297 7f358e3b 2019-11-23 stsp imsg_close(ibuf, wbuf);
299 268f7291 2018-12-24 stsp return flush_imsg(ibuf);
302 268f7291 2018-12-24 stsp const struct got_error *
303 268f7291 2018-12-24 stsp got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
304 268f7291 2018-12-24 stsp struct got_object_id *id, int pack_idx)
306 268f7291 2018-12-24 stsp struct got_imsg_packed_object iobj, *iobjp;
307 268f7291 2018-12-24 stsp size_t len;
309 268f7291 2018-12-24 stsp if (id) { /* tag is packed */
310 268f7291 2018-12-24 stsp iobj.idx = pack_idx;
311 268f7291 2018-12-24 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
312 268f7291 2018-12-24 stsp iobjp = &iobj;
313 268f7291 2018-12-24 stsp len = sizeof(iobj);
315 268f7291 2018-12-24 stsp iobjp = NULL;
319 268f7291 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, iobjp, len)
321 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose TAG_REQUEST");
323 7762fe12 2018-11-05 stsp return flush_imsg(ibuf);
326 7762fe12 2018-11-05 stsp const struct got_error *
327 ebc55e2d 2018-12-24 stsp got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
328 ebc55e2d 2018-12-24 stsp struct got_object_id *id, int pack_idx)
330 41496140 2019-02-21 stsp const struct got_error *err = NULL;
331 ebc55e2d 2018-12-24 stsp struct got_imsg_packed_object iobj, *iobjp;
332 ebc55e2d 2018-12-24 stsp size_t len;
334 ebc55e2d 2018-12-24 stsp if (id) { /* blob is packed */
335 ebc55e2d 2018-12-24 stsp iobj.idx = pack_idx;
336 ebc55e2d 2018-12-24 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
337 ebc55e2d 2018-12-24 stsp iobjp = &iobj;
338 ebc55e2d 2018-12-24 stsp len = sizeof(iobj);
340 ebc55e2d 2018-12-24 stsp iobjp = NULL;
344 ebc55e2d 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, iobjp, len)
346 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose BLOB_REQUEST");
347 41496140 2019-02-21 stsp close(infd);
348 41496140 2019-02-21 stsp return err;
351 55da3778 2018-09-10 stsp return flush_imsg(ibuf);
354 55da3778 2018-09-10 stsp const struct got_error *
355 55da3778 2018-09-10 stsp got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
357 41496140 2019-02-21 stsp const struct got_error *err = NULL;
359 ad242220 2018-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
361 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose BLOB_OUTFD");
362 41496140 2019-02-21 stsp close(outfd);
363 41496140 2019-02-21 stsp return err;
366 3840f4c9 2018-09-12 stsp return flush_imsg(ibuf);
369 3840f4c9 2018-09-12 stsp const struct got_error *
370 3840f4c9 2018-09-12 stsp got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
372 41496140 2019-02-21 stsp const struct got_error *err = NULL;
374 3840f4c9 2018-09-12 stsp if (imsg_compose(ibuf, GOT_IMSG_TMPFD, 0, 0, fd, NULL, 0)
376 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TMPFD");
378 41496140 2019-02-21 stsp return err;
381 ad242220 2018-09-08 stsp return flush_imsg(ibuf);
384 ad242220 2018-09-08 stsp const struct got_error *
385 876c234b 2018-09-10 stsp got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
387 2178c42e 2018-04-22 stsp struct got_imsg_object iobj;
389 c59b3346 2018-09-11 stsp memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id));
390 2178c42e 2018-04-22 stsp iobj.type = obj->type;
391 2178c42e 2018-04-22 stsp iobj.flags = obj->flags;
392 2178c42e 2018-04-22 stsp iobj.hdrlen = obj->hdrlen;
393 2178c42e 2018-04-22 stsp iobj.size = obj->size;
394 c59b3346 2018-09-11 stsp if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
395 876c234b 2018-09-10 stsp iobj.pack_offset = obj->pack_offset;
396 c59b3346 2018-09-11 stsp iobj.pack_idx = obj->pack_idx;
399 2178c42e 2018-04-22 stsp if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
401 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose OBJECT");
403 c59b3346 2018-09-11 stsp return flush_imsg(ibuf);
406 cfd633c2 2018-09-10 stsp const struct got_error *
407 cfd633c2 2018-09-10 stsp got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
408 cfd633c2 2018-09-10 stsp struct imsgbuf *ibuf)
410 cfd633c2 2018-09-10 stsp const struct got_error *err = NULL;
411 291624d8 2018-11-07 stsp struct got_imsg_object *iobj;
412 cfd633c2 2018-09-10 stsp size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
414 291624d8 2018-11-07 stsp if (datalen != sizeof(*iobj))
415 cfd633c2 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
416 291624d8 2018-11-07 stsp iobj = imsg->data;
418 cfd633c2 2018-09-10 stsp *obj = calloc(1, sizeof(**obj));
419 cfd633c2 2018-09-10 stsp if (*obj == NULL)
420 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
422 291624d8 2018-11-07 stsp memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH);
423 291624d8 2018-11-07 stsp (*obj)->type = iobj->type;
424 291624d8 2018-11-07 stsp (*obj)->flags = iobj->flags;
425 291624d8 2018-11-07 stsp (*obj)->hdrlen = iobj->hdrlen;
426 291624d8 2018-11-07 stsp (*obj)->size = iobj->size;
427 c59b3346 2018-09-11 stsp /* path_packfile is handled by caller */
428 291624d8 2018-11-07 stsp if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
429 291624d8 2018-11-07 stsp (*obj)->pack_offset = iobj->pack_offset;
430 291624d8 2018-11-07 stsp (*obj)->pack_idx = iobj->pack_idx;
433 876c234b 2018-09-10 stsp return err;
436 2178c42e 2018-04-22 stsp const struct got_error *
437 2178c42e 2018-04-22 stsp got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
439 2178c42e 2018-04-22 stsp const struct got_error *err = NULL;
440 2178c42e 2018-04-22 stsp struct imsg imsg;
441 c4eae628 2018-04-23 stsp const size_t min_datalen =
442 c4eae628 2018-04-23 stsp MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
444 2178c42e 2018-04-22 stsp *obj = NULL;
446 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
448 2178c42e 2018-04-22 stsp return err;
450 2178c42e 2018-04-22 stsp switch (imsg.hdr.type) {
451 2178c42e 2018-04-22 stsp case GOT_IMSG_OBJECT:
452 cfd633c2 2018-09-10 stsp err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
455 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
459 bff6ca00 2018-04-23 stsp imsg_free(&imsg);
461 bff6ca00 2018-04-23 stsp return err;
464 c75f7264 2018-09-11 stsp static const struct got_error *
465 c75f7264 2018-09-11 stsp send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
466 c75f7264 2018-09-11 stsp size_t logmsg_len)
468 fa4ffeb3 2018-11-04 stsp const struct got_error *err = NULL;
469 c75f7264 2018-09-11 stsp size_t offset, remain;
471 c75f7264 2018-09-11 stsp offset = 0;
472 c75f7264 2018-09-11 stsp remain = logmsg_len;
473 c75f7264 2018-09-11 stsp while (remain > 0) {
474 c75f7264 2018-09-11 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
476 c75f7264 2018-09-11 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
477 fa4ffeb3 2018-11-04 stsp commit->logmsg + offset, n) == -1) {
478 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose "
479 230a42bd 2019-05-11 jcs "COMMIT_LOGMSG");
483 fa4ffeb3 2018-11-04 stsp err = flush_imsg(ibuf);
487 c75f7264 2018-09-11 stsp offset += n;
488 c75f7264 2018-09-11 stsp remain -= n;
491 fa4ffeb3 2018-11-04 stsp return err;
494 bff6ca00 2018-04-23 stsp const struct got_error *
495 068fd2bf 2018-04-24 stsp got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
497 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
498 b9c33926 2018-11-07 stsp struct got_imsg_commit_object *icommit;
499 bff6ca00 2018-04-23 stsp uint8_t *buf;
500 bff6ca00 2018-04-23 stsp size_t len, total;
501 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
502 b9c33926 2018-11-07 stsp size_t author_len = strlen(commit->author);
503 b9c33926 2018-11-07 stsp size_t committer_len = strlen(commit->committer);
504 c75f7264 2018-09-11 stsp size_t logmsg_len = strlen(commit->logmsg);
506 b9c33926 2018-11-07 stsp total = sizeof(*icommit) + author_len + committer_len +
507 b9c33926 2018-11-07 stsp commit->nparents * SHA1_DIGEST_LENGTH;
509 bff6ca00 2018-04-23 stsp buf = malloc(total);
510 bff6ca00 2018-04-23 stsp if (buf == NULL)
511 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
513 b9c33926 2018-11-07 stsp icommit = (struct got_imsg_commit_object *)buf;
514 a7403916 2018-12-24 stsp memcpy(icommit->tree_id, commit->tree_id->sha1,
515 a7403916 2018-12-24 stsp sizeof(icommit->tree_id));
516 b9c33926 2018-11-07 stsp icommit->author_len = author_len;
517 b9c33926 2018-11-07 stsp icommit->author_time = commit->author_time;
518 b9c33926 2018-11-07 stsp icommit->author_gmtoff = commit->author_gmtoff;
519 b9c33926 2018-11-07 stsp icommit->committer_len = committer_len;
520 b9c33926 2018-11-07 stsp icommit->committer_time = commit->committer_time;
521 b9c33926 2018-11-07 stsp icommit->committer_gmtoff = commit->committer_gmtoff;
522 b9c33926 2018-11-07 stsp icommit->logmsg_len = logmsg_len;
523 b9c33926 2018-11-07 stsp icommit->nparents = commit->nparents;
525 b9c33926 2018-11-07 stsp len = sizeof(*icommit);
526 b9c33926 2018-11-07 stsp memcpy(buf + len, commit->author, author_len);
527 b9c33926 2018-11-07 stsp len += author_len;
528 b9c33926 2018-11-07 stsp memcpy(buf + len, commit->committer, committer_len);
529 b9c33926 2018-11-07 stsp len += committer_len;
530 79f35eb3 2018-06-11 stsp SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
531 79f35eb3 2018-06-11 stsp memcpy(buf + len, qid->id, SHA1_DIGEST_LENGTH);
532 86acc566 2018-04-23 stsp len += SHA1_DIGEST_LENGTH;
535 bff6ca00 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
536 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose COMMIT");
540 904df868 2018-11-04 stsp if (logmsg_len == 0 ||
541 904df868 2018-11-04 stsp logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
542 904df868 2018-11-04 stsp err = flush_imsg(ibuf);
546 c75f7264 2018-09-11 stsp err = send_commit_logmsg(ibuf, commit, logmsg_len);
549 bff6ca00 2018-04-23 stsp return err;
552 bff6ca00 2018-04-23 stsp const struct got_error *
553 068fd2bf 2018-04-24 stsp got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
555 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
556 bff6ca00 2018-04-23 stsp struct imsg imsg;
557 291624d8 2018-11-07 stsp struct got_imsg_commit_object *icommit;
558 bff6ca00 2018-04-23 stsp size_t len, datalen;
560 bff6ca00 2018-04-23 stsp const size_t min_datalen =
561 bff6ca00 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
562 bff6ca00 2018-04-23 stsp sizeof(struct got_imsg_commit_object));
564 bff6ca00 2018-04-23 stsp *commit = NULL;
566 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
568 bff6ca00 2018-04-23 stsp return err;
570 bff6ca00 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
573 bff6ca00 2018-04-23 stsp switch (imsg.hdr.type) {
574 bff6ca00 2018-04-23 stsp case GOT_IMSG_COMMIT:
575 291624d8 2018-11-07 stsp if (datalen < sizeof(*icommit)) {
576 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
579 291624d8 2018-11-07 stsp icommit = imsg.data;
580 291624d8 2018-11-07 stsp if (datalen != sizeof(*icommit) + icommit->author_len +
581 291624d8 2018-11-07 stsp icommit->committer_len +
582 291624d8 2018-11-07 stsp icommit->nparents * SHA1_DIGEST_LENGTH) {
583 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
586 291624d8 2018-11-07 stsp if (icommit->nparents < 0) {
587 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
590 291624d8 2018-11-07 stsp len += sizeof(*icommit);
592 bff6ca00 2018-04-23 stsp *commit = got_object_commit_alloc_partial();
593 bff6ca00 2018-04-23 stsp if (*commit == NULL) {
594 638f9024 2019-05-13 stsp err = got_error_from_errno(
595 230a42bd 2019-05-11 jcs "got_object_commit_alloc_partial");
599 291624d8 2018-11-07 stsp memcpy((*commit)->tree_id->sha1, icommit->tree_id,
600 86acc566 2018-04-23 stsp SHA1_DIGEST_LENGTH);
601 291624d8 2018-11-07 stsp (*commit)->author_time = icommit->author_time;
602 291624d8 2018-11-07 stsp (*commit)->author_gmtoff = icommit->author_gmtoff;
603 291624d8 2018-11-07 stsp (*commit)->committer_time = icommit->committer_time;
604 291624d8 2018-11-07 stsp (*commit)->committer_gmtoff = icommit->committer_gmtoff;
606 291624d8 2018-11-07 stsp if (icommit->author_len == 0) {
607 bff6ca00 2018-04-23 stsp (*commit)->author = strdup("");
608 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
609 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
613 291624d8 2018-11-07 stsp (*commit)->author = malloc(icommit->author_len + 1);
614 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
615 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
618 291624d8 2018-11-07 stsp memcpy((*commit)->author, imsg.data + len,
619 291624d8 2018-11-07 stsp icommit->author_len);
620 291624d8 2018-11-07 stsp (*commit)->author[icommit->author_len] = '\0';
622 291624d8 2018-11-07 stsp len += icommit->author_len;
624 291624d8 2018-11-07 stsp if (icommit->committer_len == 0) {
625 bff6ca00 2018-04-23 stsp (*commit)->committer = strdup("");
626 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
627 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
631 bff6ca00 2018-04-23 stsp (*commit)->committer =
632 291624d8 2018-11-07 stsp malloc(icommit->committer_len + 1);
633 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
634 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
637 291624d8 2018-11-07 stsp memcpy((*commit)->committer, imsg.data + len,
638 291624d8 2018-11-07 stsp icommit->committer_len);
639 291624d8 2018-11-07 stsp (*commit)->committer[icommit->committer_len] = '\0';
641 291624d8 2018-11-07 stsp len += icommit->committer_len;
643 291624d8 2018-11-07 stsp if (icommit->logmsg_len == 0) {
644 bff6ca00 2018-04-23 stsp (*commit)->logmsg = strdup("");
645 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
646 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
650 291624d8 2018-11-07 stsp size_t offset = 0, remain = icommit->logmsg_len;
652 291624d8 2018-11-07 stsp (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
653 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
654 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
657 c75f7264 2018-09-11 stsp while (remain > 0) {
658 c75f7264 2018-09-11 stsp struct imsg imsg_log;
659 c75f7264 2018-09-11 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
662 c75f7264 2018-09-11 stsp err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
664 c75f7264 2018-09-11 stsp return err;
666 c75f7264 2018-09-11 stsp if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG)
667 c75f7264 2018-09-11 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
669 c75f7264 2018-09-11 stsp memcpy((*commit)->logmsg + offset,
670 c75f7264 2018-09-11 stsp imsg_log.data, n);
671 c75f7264 2018-09-11 stsp imsg_free(&imsg_log);
672 c75f7264 2018-09-11 stsp offset += n;
673 c75f7264 2018-09-11 stsp remain -= n;
675 291624d8 2018-11-07 stsp (*commit)->logmsg[icommit->logmsg_len] = '\0';
678 291624d8 2018-11-07 stsp for (i = 0; i < icommit->nparents; i++) {
679 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
681 5df4932d 2018-11-05 stsp err = got_object_qid_alloc_partial(&qid);
684 291624d8 2018-11-07 stsp memcpy(qid->id, imsg.data + len +
685 291624d8 2018-11-07 stsp i * SHA1_DIGEST_LENGTH, sizeof(*qid->id));
686 7762fe12 2018-11-05 stsp SIMPLEQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
687 7762fe12 2018-11-05 stsp (*commit)->nparents++;
691 8c580685 2018-04-22 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
695 2178c42e 2018-04-22 stsp imsg_free(&imsg);
697 e033d803 2018-04-23 stsp return err;
700 e033d803 2018-04-23 stsp const struct got_error *
701 3022d272 2019-11-14 stsp got_privsep_send_tree(struct imsgbuf *ibuf, struct got_pathlist_head *entries,
702 3022d272 2019-11-14 stsp int nentries)
704 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
705 e033d803 2018-04-23 stsp struct got_imsg_tree_object itree;
706 3022d272 2019-11-14 stsp struct got_pathlist_entry *pe;
707 b00c9821 2018-11-04 stsp size_t totlen;
708 6eb07a17 2018-11-04 stsp int nimsg; /* number of imsg queued in ibuf */
710 3022d272 2019-11-14 stsp itree.nentries = nentries;
711 e033d803 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
713 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose TREE");
715 b00c9821 2018-11-04 stsp totlen = sizeof(itree);
717 3022d272 2019-11-14 stsp TAILQ_FOREACH(pe, entries, entry) {
718 3022d272 2019-11-14 stsp const char *name = pe->path;
719 3022d272 2019-11-14 stsp struct got_parsed_tree_entry *pte = pe->data;
720 3022d272 2019-11-14 stsp struct ibuf *wbuf;
721 3022d272 2019-11-14 stsp size_t namelen = strlen(name);
722 cd9e913a 2019-11-27 stsp size_t len = sizeof(struct got_imsg_tree_entry) + namelen;
724 e033d803 2018-04-23 stsp if (len > MAX_IMSGSIZE)
725 e033d803 2018-04-23 stsp return got_error(GOT_ERR_NO_SPACE);
728 6eb07a17 2018-11-04 stsp if (totlen + len >= MAX_IMSGSIZE - (IMSG_HEADER_SIZE * nimsg)) {
729 b00c9821 2018-11-04 stsp err = flush_imsg(ibuf);
731 b00c9821 2018-11-04 stsp return err;
735 3022d272 2019-11-14 stsp wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRY, 0, 0, len);
736 3022d272 2019-11-14 stsp if (wbuf == NULL)
737 3022d272 2019-11-14 stsp return got_error_from_errno("imsg_create TREE_ENTRY");
739 3022d272 2019-11-14 stsp /* Keep in sync with struct got_imsg_tree_object definition! */
740 3b647085 2019-11-23 stsp if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1) {
741 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
742 3b647085 2019-11-23 stsp ibuf_free(wbuf);
743 e033d803 2018-04-23 stsp return err;
745 3b647085 2019-11-23 stsp if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1) {
746 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
747 3b647085 2019-11-23 stsp ibuf_free(wbuf);
748 3022d272 2019-11-14 stsp return err;
751 3b647085 2019-11-23 stsp if (imsg_add(wbuf, name, namelen) == -1) {
752 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
753 3b647085 2019-11-23 stsp ibuf_free(wbuf);
754 3022d272 2019-11-14 stsp return err;
757 3022d272 2019-11-14 stsp wbuf->fd = -1;
758 3022d272 2019-11-14 stsp imsg_close(ibuf, wbuf);
760 b00c9821 2018-11-04 stsp totlen += len;
763 b00c9821 2018-11-04 stsp return flush_imsg(ibuf);
766 e033d803 2018-04-23 stsp const struct got_error *
767 068fd2bf 2018-04-24 stsp got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
769 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
770 e033d803 2018-04-23 stsp const size_t min_datalen =
771 e033d803 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
772 e033d803 2018-04-23 stsp sizeof(struct got_imsg_tree_object));
773 291624d8 2018-11-07 stsp struct got_imsg_tree_object *itree;
774 e033d803 2018-04-23 stsp int nentries = 0;
776 e033d803 2018-04-23 stsp *tree = NULL;
778 e033d803 2018-04-23 stsp err = read_imsg(ibuf);
783 e033d803 2018-04-23 stsp struct imsg imsg;
785 e033d803 2018-04-23 stsp size_t datalen;
786 c0588d8d 2018-11-07 stsp struct got_imsg_tree_entry *ite;
787 e033d803 2018-04-23 stsp struct got_tree_entry *te = NULL;
789 e033d803 2018-04-23 stsp n = imsg_get(ibuf, &imsg);
790 e033d803 2018-04-23 stsp if (n == 0) {
791 56e0773d 2019-11-28 stsp if (*tree && (*tree)->nentries != nentries)
792 e033d803 2018-04-23 stsp goto get_more;
796 e033d803 2018-04-23 stsp if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen)
797 e033d803 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
799 e033d803 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
801 e033d803 2018-04-23 stsp switch (imsg.hdr.type) {
802 e033d803 2018-04-23 stsp case GOT_IMSG_ERROR:
803 e033d803 2018-04-23 stsp err = recv_imsg_error(&imsg, datalen);
805 e033d803 2018-04-23 stsp case GOT_IMSG_TREE:
806 e033d803 2018-04-23 stsp /* This message should only appear once. */
807 e033d803 2018-04-23 stsp if (*tree != NULL) {
808 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
811 291624d8 2018-11-07 stsp if (datalen != sizeof(*itree)) {
812 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
815 291624d8 2018-11-07 stsp itree = imsg.data;
816 c3b78ecc 2018-11-07 stsp *tree = malloc(sizeof(**tree));
817 e033d803 2018-04-23 stsp if (*tree == NULL) {
818 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
821 56e0773d 2019-11-28 stsp (*tree)->entries = calloc(itree->nentries,
822 56e0773d 2019-11-28 stsp sizeof(struct got_tree_entry));
823 56e0773d 2019-11-28 stsp if ((*tree)->entries == NULL) {
824 56e0773d 2019-11-28 stsp err = got_error_from_errno("malloc");
827 56e0773d 2019-11-28 stsp (*tree)->nentries = itree->nentries;
828 c3b78ecc 2018-11-07 stsp (*tree)->refcnt = 0;
830 e033d803 2018-04-23 stsp case GOT_IMSG_TREE_ENTRY:
831 e033d803 2018-04-23 stsp /* This message should be preceeded by GOT_IMSG_TREE. */
832 e033d803 2018-04-23 stsp if (*tree == NULL) {
833 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
836 c0588d8d 2018-11-07 stsp if (datalen < sizeof(*ite) || datalen > MAX_IMSGSIZE) {
837 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
841 e033d803 2018-04-23 stsp /* Remaining data contains the entry's name. */
842 c0588d8d 2018-11-07 stsp datalen -= sizeof(*ite);
843 e033d803 2018-04-23 stsp if (datalen == 0 || datalen > MAX_IMSGSIZE) {
844 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
847 c0588d8d 2018-11-07 stsp ite = imsg.data;
849 56e0773d 2019-11-28 stsp if (datalen + 1 > sizeof(te->name)) {
850 56e0773d 2019-11-28 stsp err = got_error(GOT_ERR_NO_SPACE);
853 56e0773d 2019-11-28 stsp te = &(*tree)->entries[nentries];
854 c0588d8d 2018-11-07 stsp memcpy(te->name, imsg.data + sizeof(*ite), datalen);
855 e033d803 2018-04-23 stsp te->name[datalen] = '\0';
857 56e0773d 2019-11-28 stsp memcpy(te->id.sha1, ite->id, SHA1_DIGEST_LENGTH);
858 c0588d8d 2018-11-07 stsp te->mode = ite->mode;
859 56e0773d 2019-11-28 stsp te->idx = nentries;
860 e033d803 2018-04-23 stsp nentries++;
863 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
867 e033d803 2018-04-23 stsp imsg_free(&imsg);
870 56e0773d 2019-11-28 stsp if (*tree && (*tree)->nentries != nentries) {
871 1e51f5b9 2018-04-23 stsp if (err == NULL)
872 1e51f5b9 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
873 e033d803 2018-04-23 stsp got_object_tree_close(*tree);
874 e033d803 2018-04-23 stsp *tree = NULL;
877 ff6b18f8 2018-04-24 stsp return err;
880 ff6b18f8 2018-04-24 stsp const struct got_error *
881 ac544f8c 2019-01-13 stsp got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
882 ac544f8c 2019-01-13 stsp const uint8_t *data)
884 2967a784 2018-04-24 stsp struct got_imsg_blob iblob;
886 2967a784 2018-04-24 stsp iblob.size = size;
887 ebc55e2d 2018-12-24 stsp iblob.hdrlen = hdrlen;
889 ac544f8c 2019-01-13 stsp if (data) {
890 ac544f8c 2019-01-13 stsp uint8_t *buf;
892 ac544f8c 2019-01-13 stsp if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
893 ac544f8c 2019-01-13 stsp return got_error(GOT_ERR_NO_SPACE);
895 ac544f8c 2019-01-13 stsp buf = malloc(sizeof(iblob) + size);
896 ac544f8c 2019-01-13 stsp if (buf == NULL)
897 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
899 ac544f8c 2019-01-13 stsp memcpy(buf, &iblob, sizeof(iblob));
900 ac544f8c 2019-01-13 stsp memcpy(buf + sizeof(iblob), data, size);
901 ac544f8c 2019-01-13 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
902 ac544f8c 2019-01-13 stsp sizeof(iblob) + size) == -1) {
904 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose BLOB");
908 ac544f8c 2019-01-13 stsp /* Data has already been written to file descriptor. */
909 ac544f8c 2019-01-13 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
910 ac544f8c 2019-01-13 stsp sizeof(iblob)) == -1)
911 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose BLOB");
915 ff6b18f8 2018-04-24 stsp return flush_imsg(ibuf);
918 ff6b18f8 2018-04-24 stsp const struct got_error *
919 ac544f8c 2019-01-13 stsp got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
920 ac544f8c 2019-01-13 stsp struct imsgbuf *ibuf)
922 ff6b18f8 2018-04-24 stsp const struct got_error *err = NULL;
923 ff6b18f8 2018-04-24 stsp struct imsg imsg;
924 291624d8 2018-11-07 stsp struct got_imsg_blob *iblob;
925 ff6b18f8 2018-04-24 stsp size_t datalen;
927 ac544f8c 2019-01-13 stsp *outbuf = NULL;
929 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, 0);
931 ff6b18f8 2018-04-24 stsp return err;
933 ff6b18f8 2018-04-24 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
935 ff6b18f8 2018-04-24 stsp switch (imsg.hdr.type) {
936 ff6b18f8 2018-04-24 stsp case GOT_IMSG_BLOB:
937 ac544f8c 2019-01-13 stsp if (datalen < sizeof(*iblob)) {
938 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
941 291624d8 2018-11-07 stsp iblob = imsg.data;
942 291624d8 2018-11-07 stsp *size = iblob->size;
943 ebc55e2d 2018-12-24 stsp *hdrlen = iblob->hdrlen;
945 ac544f8c 2019-01-13 stsp if (datalen == sizeof(*iblob)) {
946 ac544f8c 2019-01-13 stsp /* Data has been written to file descriptor. */
950 ac544f8c 2019-01-13 stsp if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX) {
951 ac544f8c 2019-01-13 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
955 ac544f8c 2019-01-13 stsp *outbuf = malloc(*size);
956 ac544f8c 2019-01-13 stsp if (*outbuf == NULL) {
957 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
960 ac544f8c 2019-01-13 stsp memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
963 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
967 f4a881ce 2018-11-17 stsp imsg_free(&imsg);
969 f4a881ce 2018-11-17 stsp return err;
972 f4a881ce 2018-11-17 stsp static const struct got_error *
973 f4a881ce 2018-11-17 stsp send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
975 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
976 f4a881ce 2018-11-17 stsp size_t offset, remain;
978 f4a881ce 2018-11-17 stsp offset = 0;
979 f4a881ce 2018-11-17 stsp remain = tagmsg_len;
980 f4a881ce 2018-11-17 stsp while (remain > 0) {
981 f4a881ce 2018-11-17 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
983 f4a881ce 2018-11-17 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
984 f4a881ce 2018-11-17 stsp tag->tagmsg + offset, n) == -1) {
985 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TAG_TAGMSG");
989 f4a881ce 2018-11-17 stsp err = flush_imsg(ibuf);
993 f4a881ce 2018-11-17 stsp offset += n;
994 f4a881ce 2018-11-17 stsp remain -= n;
997 f4a881ce 2018-11-17 stsp return err;
1000 f4a881ce 2018-11-17 stsp const struct got_error *
1001 f4a881ce 2018-11-17 stsp got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
1003 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1004 f4a881ce 2018-11-17 stsp struct got_imsg_tag_object *itag;
1005 f4a881ce 2018-11-17 stsp uint8_t *buf;
1006 f4a881ce 2018-11-17 stsp size_t len, total;
1007 f4a881ce 2018-11-17 stsp size_t tag_len = strlen(tag->tag);
1008 f4a881ce 2018-11-17 stsp size_t tagger_len = strlen(tag->tagger);
1009 f4a881ce 2018-11-17 stsp size_t tagmsg_len = strlen(tag->tagmsg);
1011 f4a881ce 2018-11-17 stsp total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1013 f4a881ce 2018-11-17 stsp buf = malloc(total);
1014 f4a881ce 2018-11-17 stsp if (buf == NULL)
1015 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
1017 f4a881ce 2018-11-17 stsp itag = (struct got_imsg_tag_object *)buf;
1018 f4a881ce 2018-11-17 stsp memcpy(itag->id, tag->id.sha1, sizeof(itag->id));
1019 f4a881ce 2018-11-17 stsp itag->obj_type = tag->obj_type;
1020 f4a881ce 2018-11-17 stsp itag->tag_len = tag_len;
1021 f4a881ce 2018-11-17 stsp itag->tagger_len = tagger_len;
1022 f4a881ce 2018-11-17 stsp itag->tagger_time = tag->tagger_time;
1023 f4a881ce 2018-11-17 stsp itag->tagger_gmtoff = tag->tagger_gmtoff;
1024 f4a881ce 2018-11-17 stsp itag->tagmsg_len = tagmsg_len;
1026 f4a881ce 2018-11-17 stsp len = sizeof(*itag);
1027 f4a881ce 2018-11-17 stsp memcpy(buf + len, tag->tag, tag_len);
1028 f4a881ce 2018-11-17 stsp len += tag_len;
1029 f4a881ce 2018-11-17 stsp memcpy(buf + len, tag->tagger, tagger_len);
1030 f4a881ce 2018-11-17 stsp len += tagger_len;
1032 f4a881ce 2018-11-17 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1033 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TAG");
1034 f4a881ce 2018-11-17 stsp goto done;
1037 f4a881ce 2018-11-17 stsp if (tagmsg_len == 0 ||
1038 f4a881ce 2018-11-17 stsp tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1039 f4a881ce 2018-11-17 stsp err = flush_imsg(ibuf);
1041 f4a881ce 2018-11-17 stsp goto done;
1043 f4a881ce 2018-11-17 stsp err = send_tagmsg(ibuf, tag, tagmsg_len);
1045 f4a881ce 2018-11-17 stsp free(buf);
1046 f4a881ce 2018-11-17 stsp return err;
1049 f4a881ce 2018-11-17 stsp const struct got_error *
1050 f4a881ce 2018-11-17 stsp got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1052 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1053 f4a881ce 2018-11-17 stsp struct imsg imsg;
1054 f4a881ce 2018-11-17 stsp struct got_imsg_tag_object *itag;
1055 f4a881ce 2018-11-17 stsp size_t len, datalen;
1056 f4a881ce 2018-11-17 stsp const size_t min_datalen =
1057 f4a881ce 2018-11-17 stsp MIN(sizeof(struct got_imsg_error),
1058 f4a881ce 2018-11-17 stsp sizeof(struct got_imsg_tag_object));
1060 f4a881ce 2018-11-17 stsp *tag = NULL;
1062 f4a881ce 2018-11-17 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1064 f4a881ce 2018-11-17 stsp return err;
1066 f4a881ce 2018-11-17 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1069 f4a881ce 2018-11-17 stsp switch (imsg.hdr.type) {
1070 f4a881ce 2018-11-17 stsp case GOT_IMSG_TAG:
1071 f4a881ce 2018-11-17 stsp if (datalen < sizeof(*itag)) {
1072 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1075 f4a881ce 2018-11-17 stsp itag = imsg.data;
1076 f4a881ce 2018-11-17 stsp if (datalen != sizeof(*itag) + itag->tag_len +
1077 f4a881ce 2018-11-17 stsp itag->tagger_len) {
1078 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1081 f4a881ce 2018-11-17 stsp len += sizeof(*itag);
1083 f4a881ce 2018-11-17 stsp *tag = calloc(1, sizeof(**tag));
1084 f4a881ce 2018-11-17 stsp if (*tag == NULL) {
1085 638f9024 2019-05-13 stsp err = got_error_from_errno("calloc");
1089 f4a881ce 2018-11-17 stsp memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH);
1091 f4a881ce 2018-11-17 stsp if (itag->tag_len == 0) {
1092 f4a881ce 2018-11-17 stsp (*tag)->tag = strdup("");
1093 f4a881ce 2018-11-17 stsp if ((*tag)->tag == NULL) {
1094 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1098 f4a881ce 2018-11-17 stsp (*tag)->tag = malloc(itag->tag_len + 1);
1099 f4a881ce 2018-11-17 stsp if ((*tag)->tag == NULL) {
1100 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1103 f4a881ce 2018-11-17 stsp memcpy((*tag)->tag, imsg.data + len,
1104 f4a881ce 2018-11-17 stsp itag->tag_len);
1105 f4a881ce 2018-11-17 stsp (*tag)->tag[itag->tag_len] = '\0';
1107 f4a881ce 2018-11-17 stsp len += itag->tag_len;
1109 f4a881ce 2018-11-17 stsp (*tag)->obj_type = itag->obj_type;
1110 f4a881ce 2018-11-17 stsp (*tag)->tagger_time = itag->tagger_time;
1111 f4a881ce 2018-11-17 stsp (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1113 f4a881ce 2018-11-17 stsp if (itag->tagger_len == 0) {
1114 f4a881ce 2018-11-17 stsp (*tag)->tagger = strdup("");
1115 f4a881ce 2018-11-17 stsp if ((*tag)->tagger == NULL) {
1116 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1120 f4a881ce 2018-11-17 stsp (*tag)->tagger = malloc(itag->tagger_len + 1);
1121 f4a881ce 2018-11-17 stsp if ((*tag)->tagger == NULL) {
1122 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1125 f4a881ce 2018-11-17 stsp memcpy((*tag)->tagger, imsg.data + len,
1126 f4a881ce 2018-11-17 stsp itag->tagger_len);
1127 f4a881ce 2018-11-17 stsp (*tag)->tagger[itag->tagger_len] = '\0';
1129 f4a881ce 2018-11-17 stsp len += itag->tagger_len;
1131 f4a881ce 2018-11-17 stsp if (itag->tagmsg_len == 0) {
1132 f4a881ce 2018-11-17 stsp (*tag)->tagmsg = strdup("");
1133 f4a881ce 2018-11-17 stsp if ((*tag)->tagmsg == NULL) {
1134 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1138 f4a881ce 2018-11-17 stsp size_t offset = 0, remain = itag->tagmsg_len;
1140 f4a881ce 2018-11-17 stsp (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1141 f4a881ce 2018-11-17 stsp if ((*tag)->tagmsg == NULL) {
1142 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1145 f4a881ce 2018-11-17 stsp while (remain > 0) {
1146 f4a881ce 2018-11-17 stsp struct imsg imsg_log;
1147 f4a881ce 2018-11-17 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1150 f4a881ce 2018-11-17 stsp err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1152 f4a881ce 2018-11-17 stsp return err;
1154 f4a881ce 2018-11-17 stsp if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1155 f4a881ce 2018-11-17 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
1157 f4a881ce 2018-11-17 stsp memcpy((*tag)->tagmsg + offset, imsg_log.data,
1159 f4a881ce 2018-11-17 stsp imsg_free(&imsg_log);
1160 f4a881ce 2018-11-17 stsp offset += n;
1161 f4a881ce 2018-11-17 stsp remain -= n;
1163 f4a881ce 2018-11-17 stsp (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1168 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1172 ff6b18f8 2018-04-24 stsp imsg_free(&imsg);
1174 2178c42e 2018-04-22 stsp return err;
1177 876c234b 2018-09-10 stsp const struct got_error *
1178 876c234b 2018-09-10 stsp got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1179 876c234b 2018-09-10 stsp struct got_packidx *packidx)
1181 41496140 2019-02-21 stsp const struct got_error *err = NULL;
1182 876c234b 2018-09-10 stsp struct got_imsg_packidx ipackidx;
1183 876c234b 2018-09-10 stsp struct got_imsg_pack ipack;
1186 876c234b 2018-09-10 stsp ipackidx.len = packidx->len;
1187 876c234b 2018-09-10 stsp fd = dup(packidx->fd);
1188 876c234b 2018-09-10 stsp if (fd == -1)
1189 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1191 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1192 41496140 2019-02-21 stsp sizeof(ipackidx)) == -1) {
1193 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose PACKIDX");
1194 41496140 2019-02-21 stsp close(fd);
1195 41496140 2019-02-21 stsp return err;
1198 876c234b 2018-09-10 stsp if (strlcpy(ipack.path_packfile, pack->path_packfile,
1199 876c234b 2018-09-10 stsp sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1200 876c234b 2018-09-10 stsp return got_error(GOT_ERR_NO_SPACE);
1201 876c234b 2018-09-10 stsp ipack.filesize = pack->filesize;
1203 876c234b 2018-09-10 stsp fd = dup(pack->fd);
1204 876c234b 2018-09-10 stsp if (fd == -1)
1205 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1207 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
1209 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose PACK");
1210 41496140 2019-02-21 stsp close(fd);
1211 41496140 2019-02-21 stsp return err;
1214 876c234b 2018-09-10 stsp return flush_imsg(ibuf);
1217 876c234b 2018-09-10 stsp const struct got_error *
1218 106807b4 2018-09-15 stsp got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
1219 106807b4 2018-09-15 stsp struct got_object_id *id)
1221 876c234b 2018-09-10 stsp struct got_imsg_packed_object iobj;
1223 876c234b 2018-09-10 stsp iobj.idx = idx;
1224 106807b4 2018-09-15 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
1226 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
1227 876c234b 2018-09-10 stsp &iobj, sizeof(iobj)) == -1)
1228 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose "
1229 230a42bd 2019-05-11 jcs "PACKED_OBJECT_REQUEST");
1231 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1234 aba9c984 2019-09-08 stsp const struct got_error *
1235 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
1237 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1239 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
1240 aba9c984 2019-09-08 stsp NULL, 0) == -1) {
1241 aba9c984 2019-09-08 stsp err = got_error_from_errno("imsg_compose "
1242 aba9c984 2019-09-08 stsp "GITCONFIG_PARSE_REQUEST");
1243 aba9c984 2019-09-08 stsp close(fd);
1244 aba9c984 2019-09-08 stsp return err;
1247 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1250 aba9c984 2019-09-08 stsp const struct got_error *
1251 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
1253 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1254 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
1255 aba9c984 2019-09-08 stsp NULL, 0) == -1)
1256 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1257 aba9c984 2019-09-08 stsp "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
1259 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1262 aba9c984 2019-09-08 stsp const struct got_error *
1263 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
1265 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1266 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
1267 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1268 aba9c984 2019-09-08 stsp "GITCONFIG_AUTHOR_NAME_REQUEST");
1270 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1273 aba9c984 2019-09-08 stsp const struct got_error *
1274 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
1276 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1277 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
1278 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1279 aba9c984 2019-09-08 stsp "GITCONFIG_AUTHOR_EMAIL_REQUEST");
1281 cd95becd 2019-11-29 stsp return flush_imsg(ibuf);
1284 cd95becd 2019-11-29 stsp const struct got_error *
1285 cd95becd 2019-11-29 stsp got_privsep_send_gitconfig_remotes_req(struct imsgbuf *ibuf)
1287 cd95becd 2019-11-29 stsp if (imsg_compose(ibuf,
1288 cd95becd 2019-11-29 stsp GOT_IMSG_GITCONFIG_REMOTES_REQUEST, 0, 0, -1, NULL, 0) == -1)
1289 cd95becd 2019-11-29 stsp return got_error_from_errno("imsg_compose "
1290 cd95becd 2019-11-29 stsp "GITCONFIG_REMOTE_REQUEST");
1292 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1295 aba9c984 2019-09-08 stsp const struct got_error *
1296 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_str(struct imsgbuf *ibuf, const char *value)
1298 aba9c984 2019-09-08 stsp size_t len = value ? strlen(value) + 1 : 0;
1300 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_STR_VAL, 0, 0, -1,
1301 aba9c984 2019-09-08 stsp value, len) == -1)
1302 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose GITCONFIG_STR_VAL");
1304 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1307 aba9c984 2019-09-08 stsp const struct got_error *
1308 aba9c984 2019-09-08 stsp got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
1310 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1311 aba9c984 2019-09-08 stsp struct imsg imsg;
1312 aba9c984 2019-09-08 stsp size_t datalen;
1313 aba9c984 2019-09-08 stsp const size_t min_datalen = 0;
1315 aba9c984 2019-09-08 stsp *str = NULL;
1317 aba9c984 2019-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1319 aba9c984 2019-09-08 stsp return err;
1320 aba9c984 2019-09-08 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1322 aba9c984 2019-09-08 stsp switch (imsg.hdr.type) {
1323 aba9c984 2019-09-08 stsp case GOT_IMSG_GITCONFIG_STR_VAL:
1324 aba9c984 2019-09-08 stsp if (datalen == 0)
1326 aba9c984 2019-09-08 stsp *str = malloc(datalen);
1327 aba9c984 2019-09-08 stsp if (*str == NULL) {
1328 aba9c984 2019-09-08 stsp err = got_error_from_errno("malloc");
1331 aba9c984 2019-09-08 stsp if (strlcpy(*str, imsg.data, datalen) >= datalen)
1332 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_NO_SPACE);
1335 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1339 aba9c984 2019-09-08 stsp imsg_free(&imsg);
1340 aba9c984 2019-09-08 stsp return err;
1343 aba9c984 2019-09-08 stsp const struct got_error *
1344 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_int(struct imsgbuf *ibuf, int value)
1346 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_INT_VAL, 0, 0, -1,
1347 aba9c984 2019-09-08 stsp &value, sizeof(value)) == -1)
1348 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose GITCONFIG_INT_VAL");
1350 876c234b 2018-09-10 stsp return flush_imsg(ibuf);
1353 63219cd2 2019-01-04 stsp const struct got_error *
1354 aba9c984 2019-09-08 stsp got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
1356 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1357 aba9c984 2019-09-08 stsp struct imsg imsg;
1358 aba9c984 2019-09-08 stsp size_t datalen;
1359 aba9c984 2019-09-08 stsp const size_t min_datalen =
1360 aba9c984 2019-09-08 stsp MIN(sizeof(struct got_imsg_error), sizeof(int));
1364 aba9c984 2019-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1366 aba9c984 2019-09-08 stsp return err;
1367 aba9c984 2019-09-08 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1369 aba9c984 2019-09-08 stsp switch (imsg.hdr.type) {
1370 aba9c984 2019-09-08 stsp case GOT_IMSG_GITCONFIG_INT_VAL:
1371 aba9c984 2019-09-08 stsp if (datalen != sizeof(*val)) {
1372 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1375 aba9c984 2019-09-08 stsp memcpy(val, imsg.data, sizeof(*val));
1378 cd95becd 2019-11-29 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1382 cd95becd 2019-11-29 stsp imsg_free(&imsg);
1383 cd95becd 2019-11-29 stsp return err;
1386 cd95becd 2019-11-29 stsp const struct got_error *
1387 cd95becd 2019-11-29 stsp got_privsep_send_gitconfig_remotes(struct imsgbuf *ibuf,
1388 cd95becd 2019-11-29 stsp struct got_remote_repo *remotes, int nremotes)
1390 cd95becd 2019-11-29 stsp const struct got_error *err = NULL;
1391 cd95becd 2019-11-29 stsp struct got_imsg_remotes iremotes;
1394 cd95becd 2019-11-29 stsp iremotes.nremotes = nremotes;
1395 cd95becd 2019-11-29 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_REMOTES, 0, 0, -1,
1396 cd95becd 2019-11-29 stsp &iremotes, sizeof(iremotes)) == -1)
1397 cd95becd 2019-11-29 stsp return got_error_from_errno("imsg_compose GITCONFIG_REMOTES");
1399 cd95becd 2019-11-29 stsp err = flush_imsg(ibuf);
1400 cd95becd 2019-11-29 stsp imsg_clear(ibuf);
1402 cd95becd 2019-11-29 stsp return err;
1404 cd95becd 2019-11-29 stsp for (i = 0; i < nremotes; i++) {
1405 cd95becd 2019-11-29 stsp struct got_imsg_remote iremote;
1406 cd95becd 2019-11-29 stsp size_t len = sizeof(iremote);
1407 cd95becd 2019-11-29 stsp struct ibuf *wbuf;
1409 cd95becd 2019-11-29 stsp iremote.name_len = strlen(remotes[i].name);
1410 cd95becd 2019-11-29 stsp len += iremote.name_len;
1411 cd95becd 2019-11-29 stsp iremote.url_len = strlen(remotes[i].url);
1412 cd95becd 2019-11-29 stsp len += iremote.url_len;
1414 cd95becd 2019-11-29 stsp wbuf = imsg_create(ibuf, GOT_IMSG_GITCONFIG_REMOTE, 0, 0, len);
1415 cd95becd 2019-11-29 stsp if (wbuf == NULL)
1416 cd95becd 2019-11-29 stsp return got_error_from_errno(
1417 cd95becd 2019-11-29 stsp "imsg_create GITCONFIG_REMOTE");
1419 cd95becd 2019-11-29 stsp if (imsg_add(wbuf, &iremote, sizeof(iremote)) == -1) {
1420 cd95becd 2019-11-29 stsp err = got_error_from_errno(
1421 cd95becd 2019-11-29 stsp "imsg_add GIITCONFIG_REMOTE");
1422 cd95becd 2019-11-29 stsp ibuf_free(wbuf);
1423 cd95becd 2019-11-29 stsp return err;
1426 cd95becd 2019-11-29 stsp if (imsg_add(wbuf, remotes[i].name, iremote.name_len) == -1) {
1427 cd95becd 2019-11-29 stsp err = got_error_from_errno(
1428 cd95becd 2019-11-29 stsp "imsg_add GIITCONFIG_REMOTE");
1429 cd95becd 2019-11-29 stsp ibuf_free(wbuf);
1430 cd95becd 2019-11-29 stsp return err;
1432 cd95becd 2019-11-29 stsp if (imsg_add(wbuf, remotes[i].url, iremote.url_len) == -1) {
1433 cd95becd 2019-11-29 stsp err = got_error_from_errno(
1434 cd95becd 2019-11-29 stsp "imsg_add GIITCONFIG_REMOTE");
1435 cd95becd 2019-11-29 stsp ibuf_free(wbuf);
1436 cd95becd 2019-11-29 stsp return err;
1439 cd95becd 2019-11-29 stsp wbuf->fd = -1;
1440 cd95becd 2019-11-29 stsp imsg_close(ibuf, wbuf);
1441 cd95becd 2019-11-29 stsp err = flush_imsg(ibuf);
1443 cd95becd 2019-11-29 stsp return err;
1446 cd95becd 2019-11-29 stsp return NULL;
1449 cd95becd 2019-11-29 stsp const struct got_error *
1450 cd95becd 2019-11-29 stsp got_privsep_recv_gitconfig_remotes(struct got_remote_repo **remotes,
1451 cd95becd 2019-11-29 stsp int *nremotes, struct imsgbuf *ibuf)
1453 cd95becd 2019-11-29 stsp const struct got_error *err = NULL;
1454 cd95becd 2019-11-29 stsp struct imsg imsg;
1455 cd95becd 2019-11-29 stsp size_t datalen;
1456 cd95becd 2019-11-29 stsp struct got_imsg_remotes iremotes;
1457 cd95becd 2019-11-29 stsp struct got_imsg_remote iremote;
1459 cd95becd 2019-11-29 stsp *remotes = NULL;
1460 cd95becd 2019-11-29 stsp *nremotes = 0;
1462 cd95becd 2019-11-29 stsp err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremotes));
1464 cd95becd 2019-11-29 stsp return err;
1465 cd95becd 2019-11-29 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1467 cd95becd 2019-11-29 stsp switch (imsg.hdr.type) {
1468 cd95becd 2019-11-29 stsp case GOT_IMSG_GITCONFIG_REMOTES:
1469 cd95becd 2019-11-29 stsp if (datalen != sizeof(iremotes)) {
1470 cd95becd 2019-11-29 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1473 cd95becd 2019-11-29 stsp memcpy(&iremotes, imsg.data, sizeof(iremotes));
1474 cd95becd 2019-11-29 stsp if (iremotes.nremotes == 0) {
1475 cd95becd 2019-11-29 stsp imsg_free(&imsg);
1476 cd95becd 2019-11-29 stsp return NULL;
1480 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1484 aba9c984 2019-09-08 stsp imsg_free(&imsg);
1486 cd95becd 2019-11-29 stsp *remotes = recallocarray(NULL, 0, iremotes.nremotes, sizeof(iremote));
1487 cd95becd 2019-11-29 stsp if (*remotes == NULL)
1488 cd95becd 2019-11-29 stsp return got_error_from_errno("recallocarray");
1490 cd95becd 2019-11-29 stsp while (*nremotes < iremotes.nremotes) {
1491 cd95becd 2019-11-29 stsp struct got_remote_repo *remote;
1493 cd95becd 2019-11-29 stsp err = got_privsep_recv_imsg(&imsg, ibuf, sizeof(iremote));
1496 cd95becd 2019-11-29 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1498 cd95becd 2019-11-29 stsp switch (imsg.hdr.type) {
1499 cd95becd 2019-11-29 stsp case GOT_IMSG_GITCONFIG_REMOTE:
1500 cd95becd 2019-11-29 stsp remote = &(*remotes)[*nremotes];
1501 cd95becd 2019-11-29 stsp if (datalen < sizeof(iremote)) {
1502 cd95becd 2019-11-29 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1505 cd95becd 2019-11-29 stsp memcpy(&iremote, imsg.data, sizeof(iremote));
1506 cd95becd 2019-11-29 stsp if (iremote.name_len == 0 || iremote.url_len == 0 ||
1507 cd95becd 2019-11-29 stsp (sizeof(iremote) + iremote.name_len +
1508 cd95becd 2019-11-29 stsp iremote.url_len) > datalen) {
1509 cd95becd 2019-11-29 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1512 cd95becd 2019-11-29 stsp remote->name = strndup(imsg.data + sizeof(iremote),
1513 cd95becd 2019-11-29 stsp iremote.name_len);
1514 cd95becd 2019-11-29 stsp if (remote->name == NULL) {
1515 cd95becd 2019-11-29 stsp err = got_error_from_errno("strndup");
1518 cd95becd 2019-11-29 stsp remote->url = strndup(imsg.data + sizeof(iremote) +
1519 cd95becd 2019-11-29 stsp iremote.name_len, iremote.url_len);
1520 cd95becd 2019-11-29 stsp if (remote->url == NULL) {
1521 cd95becd 2019-11-29 stsp err = got_error_from_errno("strndup");
1522 cd95becd 2019-11-29 stsp free(remote->name);
1525 cd95becd 2019-11-29 stsp (*nremotes)++;
1528 cd95becd 2019-11-29 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1532 cd95becd 2019-11-29 stsp imsg_free(&imsg);
1537 cd95becd 2019-11-29 stsp if (err) {
1539 cd95becd 2019-11-29 stsp for (i = 0; i < *nremotes; i++) {
1540 cd95becd 2019-11-29 stsp free((*remotes)[i].name);
1541 cd95becd 2019-11-29 stsp free((*remotes)[i].url);
1543 cd95becd 2019-11-29 stsp free(*remotes);
1544 cd95becd 2019-11-29 stsp *remotes = NULL;
1545 cd95becd 2019-11-29 stsp *nremotes = 0;
1547 aba9c984 2019-09-08 stsp return err;
1550 aba9c984 2019-09-08 stsp const struct got_error *
1551 63219cd2 2019-01-04 stsp got_privsep_unveil_exec_helpers(void)
1553 c39c25dd 2019-08-09 stsp const char *helpers[] = {
1554 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_PACK,
1555 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_OBJECT,
1556 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_COMMIT,
1557 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_TREE,
1558 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_BLOB,
1559 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_TAG,
1560 aba9c984 2019-09-08 stsp GOT_PATH_PROG_READ_GITCONFIG,
1564 c39c25dd 2019-08-09 stsp for (i = 0; i < nitems(helpers); i++) {
1565 c39c25dd 2019-08-09 stsp if (unveil(helpers[i], "x") == 0)
1567 c39c25dd 2019-08-09 stsp return got_error_from_errno2("unveil", helpers[i]);
1570 63219cd2 2019-01-04 stsp return NULL;
1574 aba9c984 2019-09-08 stsp got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
1576 aba9c984 2019-09-08 stsp if (close(imsg_fds[0]) != 0) {
1577 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1581 aba9c984 2019-09-08 stsp if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
1582 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1585 aba9c984 2019-09-08 stsp if (closefrom(GOT_IMSG_FD_CHILD + 1) == -1) {
1586 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1590 aba9c984 2019-09-08 stsp if (execl(path, path, repo_path, (char *)NULL) == -1) {
1591 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s: %s\n", getprogname(), path,
1592 aba9c984 2019-09-08 stsp strerror(errno));
