2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 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"
38 2178c42e 2018-04-22 stsp #include "got_lib_sha1.h"
39 2178c42e 2018-04-22 stsp #include "got_lib_delta.h"
40 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
41 2178c42e 2018-04-22 stsp #include "got_lib_object.h"
42 a440fac0 2018-09-06 stsp #include "got_lib_object_parse.h"
43 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
44 876c234b 2018-09-10 stsp #include "got_lib_pack.h"
47 2178c42e 2018-04-22 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
50 c39c25dd 2019-08-09 stsp #ifndef nitems
51 c39c25dd 2019-08-09 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
54 2178c42e 2018-04-22 stsp static const struct got_error *
55 2178c42e 2018-04-22 stsp poll_fd(int fd, int events, int timeout)
57 2178c42e 2018-04-22 stsp struct pollfd pfd[1];
60 2178c42e 2018-04-22 stsp pfd[0].fd = fd;
61 2178c42e 2018-04-22 stsp pfd[0].events = events;
63 2178c42e 2018-04-22 stsp n = poll(pfd, 1, timeout);
64 2178c42e 2018-04-22 stsp if (n == -1)
65 638f9024 2019-05-13 stsp return got_error_from_errno("poll");
67 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_TIMEOUT);
68 2178c42e 2018-04-22 stsp if (pfd[0].revents & (POLLERR | POLLNVAL))
69 638f9024 2019-05-13 stsp return got_error_from_errno("poll error");
70 2178c42e 2018-04-22 stsp if (pfd[0].revents & (events | POLLHUP))
71 2178c42e 2018-04-22 stsp return NULL;
73 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_INTERRUPT);
76 c4eae628 2018-04-23 stsp static const struct got_error *
77 e033d803 2018-04-23 stsp read_imsg(struct imsgbuf *ibuf)
79 fe36cf76 2018-04-23 stsp const struct got_error *err;
82 fe36cf76 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLIN, INFTIM);
86 fe36cf76 2018-04-23 stsp n = imsg_read(ibuf);
87 fe36cf76 2018-04-23 stsp if (n == -1) {
88 fe36cf76 2018-04-23 stsp if (errno == EAGAIN) /* Could be a file-descriptor leak. */
89 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
90 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_READ);
93 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_PIPE);
95 e033d803 2018-04-23 stsp return NULL;
98 ad242220 2018-09-08 stsp const struct got_error *
99 876c234b 2018-09-10 stsp got_privsep_wait_for_child(pid_t pid)
101 876c234b 2018-09-10 stsp int child_status;
103 2cb49fa8 2019-05-10 stsp if (waitpid(pid, &child_status, 0) == -1)
104 638f9024 2019-05-13 stsp return got_error_from_errno("waitpid");
106 876c234b 2018-09-10 stsp if (!WIFEXITED(child_status))
107 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_DIED);
109 876c234b 2018-09-10 stsp if (WEXITSTATUS(child_status) != 0)
110 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_EXIT);
112 876c234b 2018-09-10 stsp return NULL;
115 73b7854a 2018-11-11 stsp static const struct got_error *
116 73b7854a 2018-11-11 stsp recv_imsg_error(struct imsg *imsg, size_t datalen)
118 73b7854a 2018-11-11 stsp struct got_imsg_error *ierr;
120 73b7854a 2018-11-11 stsp if (datalen != sizeof(*ierr))
121 73b7854a 2018-11-11 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
123 73b7854a 2018-11-11 stsp ierr = imsg->data;
124 73b7854a 2018-11-11 stsp if (ierr->code == GOT_ERR_ERRNO) {
125 73b7854a 2018-11-11 stsp static struct got_error serr;
126 73b7854a 2018-11-11 stsp serr.code = GOT_ERR_ERRNO;
127 73b7854a 2018-11-11 stsp serr.msg = strerror(ierr->errno_code);
128 73b7854a 2018-11-11 stsp return &serr;
131 73b7854a 2018-11-11 stsp return got_error(ierr->code);
134 876c234b 2018-09-10 stsp const struct got_error *
135 46de5bfd 2018-11-11 stsp got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf,
136 46de5bfd 2018-11-11 stsp size_t min_datalen)
138 e033d803 2018-04-23 stsp const struct got_error *err;
141 e033d803 2018-04-23 stsp n = imsg_get(ibuf, imsg);
142 876c234b 2018-09-10 stsp if (n == -1)
143 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_get");
145 876c234b 2018-09-10 stsp while (n == 0) {
146 876c234b 2018-09-10 stsp err = read_imsg(ibuf);
148 876c234b 2018-09-10 stsp return err;
149 876c234b 2018-09-10 stsp n = imsg_get(ibuf, imsg);
152 fe36cf76 2018-04-23 stsp if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
153 c4eae628 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
155 73b7854a 2018-11-11 stsp if (imsg->hdr.type == GOT_IMSG_ERROR) {
156 73b7854a 2018-11-11 stsp size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
157 73b7854a 2018-11-11 stsp return recv_imsg_error(imsg, datalen);
160 73b7854a 2018-11-11 stsp return NULL;
163 2178c42e 2018-04-22 stsp /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
165 2178c42e 2018-04-22 stsp got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
167 2178c42e 2018-04-22 stsp const struct got_error *poll_err;
168 2178c42e 2018-04-22 stsp struct got_imsg_error ierr;
171 2178c42e 2018-04-22 stsp ierr.code = err->code;
172 2178c42e 2018-04-22 stsp if (err->code == GOT_ERR_ERRNO)
173 2178c42e 2018-04-22 stsp ierr.errno_code = errno;
175 2178c42e 2018-04-22 stsp ierr.errno_code = 0;
176 2178c42e 2018-04-22 stsp ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
177 e93cd828 2018-11-11 stsp if (ret == -1) {
178 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
179 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
183 2178c42e 2018-04-22 stsp poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
184 5d43e84d 2018-04-23 stsp if (poll_err) {
185 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
186 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, poll_err->msg);
190 2178c42e 2018-04-22 stsp ret = imsg_flush(ibuf);
191 5d43e84d 2018-04-23 stsp if (ret == -1) {
192 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
193 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
198 e033d803 2018-04-23 stsp static const struct got_error *
199 e033d803 2018-04-23 stsp flush_imsg(struct imsgbuf *ibuf)
201 e033d803 2018-04-23 stsp const struct got_error *err;
203 e033d803 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
205 e033d803 2018-04-23 stsp return err;
207 e033d803 2018-04-23 stsp if (imsg_flush(ibuf) == -1)
208 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_flush");
210 e033d803 2018-04-23 stsp return NULL;
213 ad242220 2018-09-08 stsp const struct got_error *
214 ad242220 2018-09-08 stsp got_privsep_send_stop(int fd)
216 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
217 ad242220 2018-09-08 stsp struct imsgbuf ibuf;
219 ad242220 2018-09-08 stsp imsg_init(&ibuf, fd);
221 ad242220 2018-09-08 stsp if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
222 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose STOP");
224 ad242220 2018-09-08 stsp err = flush_imsg(&ibuf);
225 ad242220 2018-09-08 stsp imsg_clear(&ibuf);
226 ad242220 2018-09-08 stsp return err;
229 ad242220 2018-09-08 stsp const struct got_error *
230 aea5f015 2018-12-24 stsp got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd)
232 aea5f015 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_OBJECT_REQUEST, 0, 0, fd, NULL, 0)
234 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose OBJECT_REQUEST");
236 1785f84a 2018-12-23 stsp return flush_imsg(ibuf);
239 1785f84a 2018-12-23 stsp const struct got_error *
240 1785f84a 2018-12-23 stsp got_privsep_send_commit_req(struct imsgbuf *ibuf, int fd,
241 1785f84a 2018-12-23 stsp struct got_object_id *id, int pack_idx)
243 41496140 2019-02-21 stsp const struct got_error *err = NULL;
244 1785f84a 2018-12-23 stsp struct got_imsg_packed_object iobj, *iobjp;
245 1785f84a 2018-12-23 stsp size_t len;
247 1785f84a 2018-12-23 stsp if (id) { /* commit is packed */
248 1785f84a 2018-12-23 stsp iobj.idx = pack_idx;
249 1785f84a 2018-12-23 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
250 1785f84a 2018-12-23 stsp iobjp = &iobj;
251 1785f84a 2018-12-23 stsp len = sizeof(iobj);
253 1785f84a 2018-12-23 stsp iobjp = NULL;
257 1785f84a 2018-12-23 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT_REQUEST, 0, 0, fd, iobjp, len)
259 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose COMMIT_REQUEST");
261 41496140 2019-02-21 stsp return err;
264 13c729f7 2018-12-24 stsp return flush_imsg(ibuf);
267 13c729f7 2018-12-24 stsp const struct got_error *
268 13c729f7 2018-12-24 stsp got_privsep_send_tree_req(struct imsgbuf *ibuf, int fd,
269 13c729f7 2018-12-24 stsp struct got_object_id *id, int pack_idx)
271 41496140 2019-02-21 stsp const struct got_error *err = NULL;
272 7f358e3b 2019-11-23 stsp struct ibuf *wbuf;
273 7f358e3b 2019-11-23 stsp size_t len = id ? sizeof(struct got_imsg_packed_object) : 0;
275 7f358e3b 2019-11-23 stsp wbuf = imsg_create(ibuf, GOT_IMSG_TREE_REQUEST, 0, 0, len);
276 7f358e3b 2019-11-23 stsp if (wbuf == NULL)
277 7f358e3b 2019-11-23 stsp return got_error_from_errno("imsg_create TREE_REQUEST");
279 13c729f7 2018-12-24 stsp if (id) { /* tree is packed */
280 7f358e3b 2019-11-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
281 7f358e3b 2019-11-23 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
282 7f358e3b 2019-11-23 stsp ibuf_free(wbuf);
283 7f358e3b 2019-11-23 stsp return err;
286 7f358e3b 2019-11-23 stsp if (imsg_add(wbuf, &pack_idx, sizeof(pack_idx)) == -1) {
287 7f358e3b 2019-11-23 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
288 7f358e3b 2019-11-23 stsp ibuf_free(wbuf);
289 7f358e3b 2019-11-23 stsp return err;
293 7f358e3b 2019-11-23 stsp wbuf->fd = fd;
294 7f358e3b 2019-11-23 stsp imsg_close(ibuf, wbuf);
296 268f7291 2018-12-24 stsp return flush_imsg(ibuf);
299 268f7291 2018-12-24 stsp const struct got_error *
300 268f7291 2018-12-24 stsp got_privsep_send_tag_req(struct imsgbuf *ibuf, int fd,
301 268f7291 2018-12-24 stsp struct got_object_id *id, int pack_idx)
303 268f7291 2018-12-24 stsp struct got_imsg_packed_object iobj, *iobjp;
304 268f7291 2018-12-24 stsp size_t len;
306 268f7291 2018-12-24 stsp if (id) { /* tag is packed */
307 268f7291 2018-12-24 stsp iobj.idx = pack_idx;
308 268f7291 2018-12-24 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
309 268f7291 2018-12-24 stsp iobjp = &iobj;
310 268f7291 2018-12-24 stsp len = sizeof(iobj);
312 268f7291 2018-12-24 stsp iobjp = NULL;
316 268f7291 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG_REQUEST, 0, 0, fd, iobjp, len)
318 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose TAG_REQUEST");
320 7762fe12 2018-11-05 stsp return flush_imsg(ibuf);
323 7762fe12 2018-11-05 stsp const struct got_error *
324 ebc55e2d 2018-12-24 stsp got_privsep_send_blob_req(struct imsgbuf *ibuf, int infd,
325 ebc55e2d 2018-12-24 stsp struct got_object_id *id, int pack_idx)
327 41496140 2019-02-21 stsp const struct got_error *err = NULL;
328 ebc55e2d 2018-12-24 stsp struct got_imsg_packed_object iobj, *iobjp;
329 ebc55e2d 2018-12-24 stsp size_t len;
331 ebc55e2d 2018-12-24 stsp if (id) { /* blob is packed */
332 ebc55e2d 2018-12-24 stsp iobj.idx = pack_idx;
333 ebc55e2d 2018-12-24 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
334 ebc55e2d 2018-12-24 stsp iobjp = &iobj;
335 ebc55e2d 2018-12-24 stsp len = sizeof(iobj);
337 ebc55e2d 2018-12-24 stsp iobjp = NULL;
341 ebc55e2d 2018-12-24 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, iobjp, len)
343 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose BLOB_REQUEST");
344 41496140 2019-02-21 stsp close(infd);
345 41496140 2019-02-21 stsp return err;
348 55da3778 2018-09-10 stsp return flush_imsg(ibuf);
351 55da3778 2018-09-10 stsp const struct got_error *
352 55da3778 2018-09-10 stsp got_privsep_send_blob_outfd(struct imsgbuf *ibuf, int outfd)
354 41496140 2019-02-21 stsp const struct got_error *err = NULL;
356 ad242220 2018-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
358 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose BLOB_OUTFD");
359 41496140 2019-02-21 stsp close(outfd);
360 41496140 2019-02-21 stsp return err;
363 3840f4c9 2018-09-12 stsp return flush_imsg(ibuf);
366 3840f4c9 2018-09-12 stsp const struct got_error *
367 3840f4c9 2018-09-12 stsp got_privsep_send_tmpfd(struct imsgbuf *ibuf, int fd)
369 41496140 2019-02-21 stsp const struct got_error *err = NULL;
371 3840f4c9 2018-09-12 stsp if (imsg_compose(ibuf, GOT_IMSG_TMPFD, 0, 0, fd, NULL, 0)
373 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TMPFD");
375 41496140 2019-02-21 stsp return err;
378 ad242220 2018-09-08 stsp return flush_imsg(ibuf);
381 ad242220 2018-09-08 stsp const struct got_error *
382 876c234b 2018-09-10 stsp got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
384 2178c42e 2018-04-22 stsp struct got_imsg_object iobj;
386 c59b3346 2018-09-11 stsp memcpy(iobj.id, obj->id.sha1, sizeof(iobj.id));
387 2178c42e 2018-04-22 stsp iobj.type = obj->type;
388 2178c42e 2018-04-22 stsp iobj.flags = obj->flags;
389 2178c42e 2018-04-22 stsp iobj.hdrlen = obj->hdrlen;
390 2178c42e 2018-04-22 stsp iobj.size = obj->size;
391 c59b3346 2018-09-11 stsp if (iobj.flags & GOT_OBJ_FLAG_PACKED) {
392 876c234b 2018-09-10 stsp iobj.pack_offset = obj->pack_offset;
393 c59b3346 2018-09-11 stsp iobj.pack_idx = obj->pack_idx;
396 2178c42e 2018-04-22 stsp if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
398 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose OBJECT");
400 c59b3346 2018-09-11 stsp return flush_imsg(ibuf);
403 cfd633c2 2018-09-10 stsp const struct got_error *
404 cfd633c2 2018-09-10 stsp got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
405 cfd633c2 2018-09-10 stsp struct imsgbuf *ibuf)
407 cfd633c2 2018-09-10 stsp const struct got_error *err = NULL;
408 291624d8 2018-11-07 stsp struct got_imsg_object *iobj;
409 cfd633c2 2018-09-10 stsp size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
411 291624d8 2018-11-07 stsp if (datalen != sizeof(*iobj))
412 cfd633c2 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
413 291624d8 2018-11-07 stsp iobj = imsg->data;
415 cfd633c2 2018-09-10 stsp *obj = calloc(1, sizeof(**obj));
416 cfd633c2 2018-09-10 stsp if (*obj == NULL)
417 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
419 291624d8 2018-11-07 stsp memcpy((*obj)->id.sha1, iobj->id, SHA1_DIGEST_LENGTH);
420 291624d8 2018-11-07 stsp (*obj)->type = iobj->type;
421 291624d8 2018-11-07 stsp (*obj)->flags = iobj->flags;
422 291624d8 2018-11-07 stsp (*obj)->hdrlen = iobj->hdrlen;
423 291624d8 2018-11-07 stsp (*obj)->size = iobj->size;
424 c59b3346 2018-09-11 stsp /* path_packfile is handled by caller */
425 291624d8 2018-11-07 stsp if (iobj->flags & GOT_OBJ_FLAG_PACKED) {
426 291624d8 2018-11-07 stsp (*obj)->pack_offset = iobj->pack_offset;
427 291624d8 2018-11-07 stsp (*obj)->pack_idx = iobj->pack_idx;
430 876c234b 2018-09-10 stsp return err;
433 2178c42e 2018-04-22 stsp const struct got_error *
434 2178c42e 2018-04-22 stsp got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
436 2178c42e 2018-04-22 stsp const struct got_error *err = NULL;
437 2178c42e 2018-04-22 stsp struct imsg imsg;
438 c4eae628 2018-04-23 stsp const size_t min_datalen =
439 c4eae628 2018-04-23 stsp MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
441 2178c42e 2018-04-22 stsp *obj = NULL;
443 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
445 2178c42e 2018-04-22 stsp return err;
447 2178c42e 2018-04-22 stsp switch (imsg.hdr.type) {
448 2178c42e 2018-04-22 stsp case GOT_IMSG_OBJECT:
449 cfd633c2 2018-09-10 stsp err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
452 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
456 bff6ca00 2018-04-23 stsp imsg_free(&imsg);
458 bff6ca00 2018-04-23 stsp return err;
461 c75f7264 2018-09-11 stsp static const struct got_error *
462 c75f7264 2018-09-11 stsp send_commit_logmsg(struct imsgbuf *ibuf, struct got_commit_object *commit,
463 c75f7264 2018-09-11 stsp size_t logmsg_len)
465 fa4ffeb3 2018-11-04 stsp const struct got_error *err = NULL;
466 c75f7264 2018-09-11 stsp size_t offset, remain;
468 c75f7264 2018-09-11 stsp offset = 0;
469 c75f7264 2018-09-11 stsp remain = logmsg_len;
470 c75f7264 2018-09-11 stsp while (remain > 0) {
471 c75f7264 2018-09-11 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
473 c75f7264 2018-09-11 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT_LOGMSG, 0, 0, -1,
474 fa4ffeb3 2018-11-04 stsp commit->logmsg + offset, n) == -1) {
475 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose "
476 230a42bd 2019-05-11 jcs "COMMIT_LOGMSG");
480 fa4ffeb3 2018-11-04 stsp err = flush_imsg(ibuf);
484 c75f7264 2018-09-11 stsp offset += n;
485 c75f7264 2018-09-11 stsp remain -= n;
488 fa4ffeb3 2018-11-04 stsp return err;
491 bff6ca00 2018-04-23 stsp const struct got_error *
492 068fd2bf 2018-04-24 stsp got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
494 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
495 b9c33926 2018-11-07 stsp struct got_imsg_commit_object *icommit;
496 bff6ca00 2018-04-23 stsp uint8_t *buf;
497 bff6ca00 2018-04-23 stsp size_t len, total;
498 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
499 b9c33926 2018-11-07 stsp size_t author_len = strlen(commit->author);
500 b9c33926 2018-11-07 stsp size_t committer_len = strlen(commit->committer);
501 c75f7264 2018-09-11 stsp size_t logmsg_len = strlen(commit->logmsg);
503 b9c33926 2018-11-07 stsp total = sizeof(*icommit) + author_len + committer_len +
504 b9c33926 2018-11-07 stsp commit->nparents * SHA1_DIGEST_LENGTH;
506 bff6ca00 2018-04-23 stsp buf = malloc(total);
507 bff6ca00 2018-04-23 stsp if (buf == NULL)
508 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
510 b9c33926 2018-11-07 stsp icommit = (struct got_imsg_commit_object *)buf;
511 a7403916 2018-12-24 stsp memcpy(icommit->tree_id, commit->tree_id->sha1,
512 a7403916 2018-12-24 stsp sizeof(icommit->tree_id));
513 b9c33926 2018-11-07 stsp icommit->author_len = author_len;
514 b9c33926 2018-11-07 stsp icommit->author_time = commit->author_time;
515 b9c33926 2018-11-07 stsp icommit->author_gmtoff = commit->author_gmtoff;
516 b9c33926 2018-11-07 stsp icommit->committer_len = committer_len;
517 b9c33926 2018-11-07 stsp icommit->committer_time = commit->committer_time;
518 b9c33926 2018-11-07 stsp icommit->committer_gmtoff = commit->committer_gmtoff;
519 b9c33926 2018-11-07 stsp icommit->logmsg_len = logmsg_len;
520 b9c33926 2018-11-07 stsp icommit->nparents = commit->nparents;
522 b9c33926 2018-11-07 stsp len = sizeof(*icommit);
523 b9c33926 2018-11-07 stsp memcpy(buf + len, commit->author, author_len);
524 b9c33926 2018-11-07 stsp len += author_len;
525 b9c33926 2018-11-07 stsp memcpy(buf + len, commit->committer, committer_len);
526 b9c33926 2018-11-07 stsp len += committer_len;
527 79f35eb3 2018-06-11 stsp SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
528 79f35eb3 2018-06-11 stsp memcpy(buf + len, qid->id, SHA1_DIGEST_LENGTH);
529 86acc566 2018-04-23 stsp len += SHA1_DIGEST_LENGTH;
532 bff6ca00 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
533 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose COMMIT");
537 904df868 2018-11-04 stsp if (logmsg_len == 0 ||
538 904df868 2018-11-04 stsp logmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
539 904df868 2018-11-04 stsp err = flush_imsg(ibuf);
543 c75f7264 2018-09-11 stsp err = send_commit_logmsg(ibuf, commit, logmsg_len);
546 bff6ca00 2018-04-23 stsp return err;
549 bff6ca00 2018-04-23 stsp const struct got_error *
550 068fd2bf 2018-04-24 stsp got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
552 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
553 bff6ca00 2018-04-23 stsp struct imsg imsg;
554 291624d8 2018-11-07 stsp struct got_imsg_commit_object *icommit;
555 bff6ca00 2018-04-23 stsp size_t len, datalen;
557 bff6ca00 2018-04-23 stsp const size_t min_datalen =
558 bff6ca00 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
559 bff6ca00 2018-04-23 stsp sizeof(struct got_imsg_commit_object));
561 bff6ca00 2018-04-23 stsp *commit = NULL;
563 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
565 bff6ca00 2018-04-23 stsp return err;
567 bff6ca00 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
570 bff6ca00 2018-04-23 stsp switch (imsg.hdr.type) {
571 bff6ca00 2018-04-23 stsp case GOT_IMSG_COMMIT:
572 291624d8 2018-11-07 stsp if (datalen < sizeof(*icommit)) {
573 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
576 291624d8 2018-11-07 stsp icommit = imsg.data;
577 291624d8 2018-11-07 stsp if (datalen != sizeof(*icommit) + icommit->author_len +
578 291624d8 2018-11-07 stsp icommit->committer_len +
579 291624d8 2018-11-07 stsp icommit->nparents * SHA1_DIGEST_LENGTH) {
580 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
583 291624d8 2018-11-07 stsp if (icommit->nparents < 0) {
584 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
587 291624d8 2018-11-07 stsp len += sizeof(*icommit);
589 bff6ca00 2018-04-23 stsp *commit = got_object_commit_alloc_partial();
590 bff6ca00 2018-04-23 stsp if (*commit == NULL) {
591 638f9024 2019-05-13 stsp err = got_error_from_errno(
592 230a42bd 2019-05-11 jcs "got_object_commit_alloc_partial");
596 291624d8 2018-11-07 stsp memcpy((*commit)->tree_id->sha1, icommit->tree_id,
597 86acc566 2018-04-23 stsp SHA1_DIGEST_LENGTH);
598 291624d8 2018-11-07 stsp (*commit)->author_time = icommit->author_time;
599 291624d8 2018-11-07 stsp (*commit)->author_gmtoff = icommit->author_gmtoff;
600 291624d8 2018-11-07 stsp (*commit)->committer_time = icommit->committer_time;
601 291624d8 2018-11-07 stsp (*commit)->committer_gmtoff = icommit->committer_gmtoff;
603 291624d8 2018-11-07 stsp if (icommit->author_len == 0) {
604 bff6ca00 2018-04-23 stsp (*commit)->author = strdup("");
605 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
606 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
610 291624d8 2018-11-07 stsp (*commit)->author = malloc(icommit->author_len + 1);
611 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
612 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
615 291624d8 2018-11-07 stsp memcpy((*commit)->author, imsg.data + len,
616 291624d8 2018-11-07 stsp icommit->author_len);
617 291624d8 2018-11-07 stsp (*commit)->author[icommit->author_len] = '\0';
619 291624d8 2018-11-07 stsp len += icommit->author_len;
621 291624d8 2018-11-07 stsp if (icommit->committer_len == 0) {
622 bff6ca00 2018-04-23 stsp (*commit)->committer = strdup("");
623 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
624 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
628 bff6ca00 2018-04-23 stsp (*commit)->committer =
629 291624d8 2018-11-07 stsp malloc(icommit->committer_len + 1);
630 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
631 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
634 291624d8 2018-11-07 stsp memcpy((*commit)->committer, imsg.data + len,
635 291624d8 2018-11-07 stsp icommit->committer_len);
636 291624d8 2018-11-07 stsp (*commit)->committer[icommit->committer_len] = '\0';
638 291624d8 2018-11-07 stsp len += icommit->committer_len;
640 291624d8 2018-11-07 stsp if (icommit->logmsg_len == 0) {
641 bff6ca00 2018-04-23 stsp (*commit)->logmsg = strdup("");
642 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
643 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
647 291624d8 2018-11-07 stsp size_t offset = 0, remain = icommit->logmsg_len;
649 291624d8 2018-11-07 stsp (*commit)->logmsg = malloc(icommit->logmsg_len + 1);
650 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
651 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
654 c75f7264 2018-09-11 stsp while (remain > 0) {
655 c75f7264 2018-09-11 stsp struct imsg imsg_log;
656 c75f7264 2018-09-11 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
659 c75f7264 2018-09-11 stsp err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
661 c75f7264 2018-09-11 stsp return err;
663 c75f7264 2018-09-11 stsp if (imsg_log.hdr.type != GOT_IMSG_COMMIT_LOGMSG)
664 c75f7264 2018-09-11 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
666 c75f7264 2018-09-11 stsp memcpy((*commit)->logmsg + offset,
667 c75f7264 2018-09-11 stsp imsg_log.data, n);
668 c75f7264 2018-09-11 stsp imsg_free(&imsg_log);
669 c75f7264 2018-09-11 stsp offset += n;
670 c75f7264 2018-09-11 stsp remain -= n;
672 291624d8 2018-11-07 stsp (*commit)->logmsg[icommit->logmsg_len] = '\0';
675 291624d8 2018-11-07 stsp for (i = 0; i < icommit->nparents; i++) {
676 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
678 5df4932d 2018-11-05 stsp err = got_object_qid_alloc_partial(&qid);
681 291624d8 2018-11-07 stsp memcpy(qid->id, imsg.data + len +
682 291624d8 2018-11-07 stsp i * SHA1_DIGEST_LENGTH, sizeof(*qid->id));
683 7762fe12 2018-11-05 stsp SIMPLEQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
684 7762fe12 2018-11-05 stsp (*commit)->nparents++;
688 8c580685 2018-04-22 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
692 2178c42e 2018-04-22 stsp imsg_free(&imsg);
694 e033d803 2018-04-23 stsp return err;
697 e033d803 2018-04-23 stsp const struct got_error *
698 3022d272 2019-11-14 stsp got_privsep_send_tree(struct imsgbuf *ibuf, struct got_pathlist_head *entries,
699 3022d272 2019-11-14 stsp int nentries)
701 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
702 e033d803 2018-04-23 stsp struct got_imsg_tree_object itree;
703 3022d272 2019-11-14 stsp struct got_pathlist_entry *pe;
704 b00c9821 2018-11-04 stsp size_t totlen;
705 6eb07a17 2018-11-04 stsp int nimsg; /* number of imsg queued in ibuf */
707 3022d272 2019-11-14 stsp itree.nentries = nentries;
708 e033d803 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
710 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose TREE");
712 b00c9821 2018-11-04 stsp totlen = sizeof(itree);
714 3022d272 2019-11-14 stsp TAILQ_FOREACH(pe, entries, entry) {
715 3022d272 2019-11-14 stsp const char *name = pe->path;
716 3022d272 2019-11-14 stsp struct got_parsed_tree_entry *pte = pe->data;
717 3022d272 2019-11-14 stsp struct ibuf *wbuf;
718 3022d272 2019-11-14 stsp size_t namelen = strlen(name);
719 3022d272 2019-11-14 stsp size_t len = sizeof(struct got_imsg_tree_object) + namelen;
721 e033d803 2018-04-23 stsp if (len > MAX_IMSGSIZE)
722 e033d803 2018-04-23 stsp return got_error(GOT_ERR_NO_SPACE);
725 6eb07a17 2018-11-04 stsp if (totlen + len >= MAX_IMSGSIZE - (IMSG_HEADER_SIZE * nimsg)) {
726 b00c9821 2018-11-04 stsp err = flush_imsg(ibuf);
728 b00c9821 2018-11-04 stsp return err;
732 3022d272 2019-11-14 stsp wbuf = imsg_create(ibuf, GOT_IMSG_TREE_ENTRY, 0, 0, len);
733 3022d272 2019-11-14 stsp if (wbuf == NULL)
734 3022d272 2019-11-14 stsp return got_error_from_errno("imsg_create TREE_ENTRY");
736 3022d272 2019-11-14 stsp /* Keep in sync with struct got_imsg_tree_object definition! */
737 3022d272 2019-11-14 stsp if (imsg_add(wbuf, pte->id, SHA1_DIGEST_LENGTH) == -1)
738 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
740 e033d803 2018-04-23 stsp return err;
741 3022d272 2019-11-14 stsp if (imsg_add(wbuf, &pte->mode, sizeof(pte->mode)) == -1)
742 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
744 3022d272 2019-11-14 stsp return err;
746 3022d272 2019-11-14 stsp if (imsg_add(wbuf, name, namelen) == -1)
747 3022d272 2019-11-14 stsp err = got_error_from_errno("imsg_add TREE_ENTRY");
749 3022d272 2019-11-14 stsp return err;
751 3022d272 2019-11-14 stsp wbuf->fd = -1;
752 3022d272 2019-11-14 stsp imsg_close(ibuf, wbuf);
754 b00c9821 2018-11-04 stsp totlen += len;
757 b00c9821 2018-11-04 stsp return flush_imsg(ibuf);
760 e033d803 2018-04-23 stsp const struct got_error *
761 068fd2bf 2018-04-24 stsp got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
763 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
764 e033d803 2018-04-23 stsp const size_t min_datalen =
765 e033d803 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
766 e033d803 2018-04-23 stsp sizeof(struct got_imsg_tree_object));
767 291624d8 2018-11-07 stsp struct got_imsg_tree_object *itree;
768 e033d803 2018-04-23 stsp int nentries = 0;
770 e033d803 2018-04-23 stsp *tree = NULL;
772 e033d803 2018-04-23 stsp err = read_imsg(ibuf);
777 e033d803 2018-04-23 stsp struct imsg imsg;
779 e033d803 2018-04-23 stsp size_t datalen;
780 c0588d8d 2018-11-07 stsp struct got_imsg_tree_entry *ite;
781 e033d803 2018-04-23 stsp struct got_tree_entry *te = NULL;
783 e033d803 2018-04-23 stsp n = imsg_get(ibuf, &imsg);
784 e033d803 2018-04-23 stsp if (n == 0) {
785 883f0469 2018-06-23 stsp if (*tree && (*tree)->entries.nentries != nentries)
786 e033d803 2018-04-23 stsp goto get_more;
790 e033d803 2018-04-23 stsp if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen)
791 e033d803 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
793 e033d803 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
795 e033d803 2018-04-23 stsp switch (imsg.hdr.type) {
796 e033d803 2018-04-23 stsp case GOT_IMSG_ERROR:
797 e033d803 2018-04-23 stsp err = recv_imsg_error(&imsg, datalen);
799 e033d803 2018-04-23 stsp case GOT_IMSG_TREE:
800 e033d803 2018-04-23 stsp /* This message should only appear once. */
801 e033d803 2018-04-23 stsp if (*tree != NULL) {
802 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
805 291624d8 2018-11-07 stsp if (datalen != sizeof(*itree)) {
806 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
809 291624d8 2018-11-07 stsp itree = imsg.data;
810 c3b78ecc 2018-11-07 stsp *tree = malloc(sizeof(**tree));
811 e033d803 2018-04-23 stsp if (*tree == NULL) {
812 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
815 291624d8 2018-11-07 stsp (*tree)->entries.nentries = itree->nentries;
816 883f0469 2018-06-23 stsp SIMPLEQ_INIT(&(*tree)->entries.head);
817 c3b78ecc 2018-11-07 stsp (*tree)->refcnt = 0;
819 e033d803 2018-04-23 stsp case GOT_IMSG_TREE_ENTRY:
820 e033d803 2018-04-23 stsp /* This message should be preceeded by GOT_IMSG_TREE. */
821 e033d803 2018-04-23 stsp if (*tree == NULL) {
822 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
825 c0588d8d 2018-11-07 stsp if (datalen < sizeof(*ite) || datalen > MAX_IMSGSIZE) {
826 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
830 e033d803 2018-04-23 stsp /* Remaining data contains the entry's name. */
831 c0588d8d 2018-11-07 stsp datalen -= sizeof(*ite);
832 e033d803 2018-04-23 stsp if (datalen == 0 || datalen > MAX_IMSGSIZE) {
833 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
836 c0588d8d 2018-11-07 stsp ite = imsg.data;
838 e033d803 2018-04-23 stsp te = got_alloc_tree_entry_partial();
839 e033d803 2018-04-23 stsp if (te == NULL) {
840 638f9024 2019-05-13 stsp err = got_error_from_errno(
841 230a42bd 2019-05-11 jcs "got_alloc_tree_entry_partial");
844 e033d803 2018-04-23 stsp te->name = malloc(datalen + 1);
845 e033d803 2018-04-23 stsp if (te->name == NULL) {
847 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
850 c0588d8d 2018-11-07 stsp memcpy(te->name, imsg.data + sizeof(*ite), datalen);
851 e033d803 2018-04-23 stsp te->name[datalen] = '\0';
853 c0588d8d 2018-11-07 stsp memcpy(te->id->sha1, ite->id, SHA1_DIGEST_LENGTH);
854 c0588d8d 2018-11-07 stsp te->mode = ite->mode;
855 883f0469 2018-06-23 stsp SIMPLEQ_INSERT_TAIL(&(*tree)->entries.head, te, entry);
856 e033d803 2018-04-23 stsp nentries++;
859 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
863 e033d803 2018-04-23 stsp imsg_free(&imsg);
866 883f0469 2018-06-23 stsp if (*tree && (*tree)->entries.nentries != nentries) {
867 1e51f5b9 2018-04-23 stsp if (err == NULL)
868 1e51f5b9 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
869 e033d803 2018-04-23 stsp got_object_tree_close(*tree);
870 e033d803 2018-04-23 stsp *tree = NULL;
873 ff6b18f8 2018-04-24 stsp return err;
876 ff6b18f8 2018-04-24 stsp const struct got_error *
877 ac544f8c 2019-01-13 stsp got_privsep_send_blob(struct imsgbuf *ibuf, size_t size, size_t hdrlen,
878 ac544f8c 2019-01-13 stsp const uint8_t *data)
880 2967a784 2018-04-24 stsp struct got_imsg_blob iblob;
882 2967a784 2018-04-24 stsp iblob.size = size;
883 ebc55e2d 2018-12-24 stsp iblob.hdrlen = hdrlen;
885 ac544f8c 2019-01-13 stsp if (data) {
886 ac544f8c 2019-01-13 stsp uint8_t *buf;
888 ac544f8c 2019-01-13 stsp if (size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX)
889 ac544f8c 2019-01-13 stsp return got_error(GOT_ERR_NO_SPACE);
891 ac544f8c 2019-01-13 stsp buf = malloc(sizeof(iblob) + size);
892 ac544f8c 2019-01-13 stsp if (buf == NULL)
893 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
895 ac544f8c 2019-01-13 stsp memcpy(buf, &iblob, sizeof(iblob));
896 ac544f8c 2019-01-13 stsp memcpy(buf + sizeof(iblob), data, size);
897 ac544f8c 2019-01-13 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, buf,
898 ac544f8c 2019-01-13 stsp sizeof(iblob) + size) == -1) {
900 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose BLOB");
904 ac544f8c 2019-01-13 stsp /* Data has already been written to file descriptor. */
905 ac544f8c 2019-01-13 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob,
906 ac544f8c 2019-01-13 stsp sizeof(iblob)) == -1)
907 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose BLOB");
911 ff6b18f8 2018-04-24 stsp return flush_imsg(ibuf);
914 ff6b18f8 2018-04-24 stsp const struct got_error *
915 ac544f8c 2019-01-13 stsp got_privsep_recv_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen,
916 ac544f8c 2019-01-13 stsp struct imsgbuf *ibuf)
918 ff6b18f8 2018-04-24 stsp const struct got_error *err = NULL;
919 ff6b18f8 2018-04-24 stsp struct imsg imsg;
920 291624d8 2018-11-07 stsp struct got_imsg_blob *iblob;
921 ff6b18f8 2018-04-24 stsp size_t datalen;
923 ac544f8c 2019-01-13 stsp *outbuf = NULL;
925 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, 0);
927 ff6b18f8 2018-04-24 stsp return err;
929 ff6b18f8 2018-04-24 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
931 ff6b18f8 2018-04-24 stsp switch (imsg.hdr.type) {
932 ff6b18f8 2018-04-24 stsp case GOT_IMSG_BLOB:
933 ac544f8c 2019-01-13 stsp if (datalen < sizeof(*iblob)) {
934 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
937 291624d8 2018-11-07 stsp iblob = imsg.data;
938 291624d8 2018-11-07 stsp *size = iblob->size;
939 ebc55e2d 2018-12-24 stsp *hdrlen = iblob->hdrlen;
941 ac544f8c 2019-01-13 stsp if (datalen == sizeof(*iblob)) {
942 ac544f8c 2019-01-13 stsp /* Data has been written to file descriptor. */
946 ac544f8c 2019-01-13 stsp if (*size > GOT_PRIVSEP_INLINE_BLOB_DATA_MAX) {
947 ac544f8c 2019-01-13 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
951 ac544f8c 2019-01-13 stsp *outbuf = malloc(*size);
952 ac544f8c 2019-01-13 stsp if (*outbuf == NULL) {
953 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
956 ac544f8c 2019-01-13 stsp memcpy(*outbuf, imsg.data + sizeof(*iblob), *size);
959 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
963 f4a881ce 2018-11-17 stsp imsg_free(&imsg);
965 f4a881ce 2018-11-17 stsp return err;
968 f4a881ce 2018-11-17 stsp static const struct got_error *
969 f4a881ce 2018-11-17 stsp send_tagmsg(struct imsgbuf *ibuf, struct got_tag_object *tag, size_t tagmsg_len)
971 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
972 f4a881ce 2018-11-17 stsp size_t offset, remain;
974 f4a881ce 2018-11-17 stsp offset = 0;
975 f4a881ce 2018-11-17 stsp remain = tagmsg_len;
976 f4a881ce 2018-11-17 stsp while (remain > 0) {
977 f4a881ce 2018-11-17 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
979 f4a881ce 2018-11-17 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG_TAGMSG, 0, 0, -1,
980 f4a881ce 2018-11-17 stsp tag->tagmsg + offset, n) == -1) {
981 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TAG_TAGMSG");
985 f4a881ce 2018-11-17 stsp err = flush_imsg(ibuf);
989 f4a881ce 2018-11-17 stsp offset += n;
990 f4a881ce 2018-11-17 stsp remain -= n;
993 f4a881ce 2018-11-17 stsp return err;
996 f4a881ce 2018-11-17 stsp const struct got_error *
997 f4a881ce 2018-11-17 stsp got_privsep_send_tag(struct imsgbuf *ibuf, struct got_tag_object *tag)
999 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1000 f4a881ce 2018-11-17 stsp struct got_imsg_tag_object *itag;
1001 f4a881ce 2018-11-17 stsp uint8_t *buf;
1002 f4a881ce 2018-11-17 stsp size_t len, total;
1003 f4a881ce 2018-11-17 stsp size_t tag_len = strlen(tag->tag);
1004 f4a881ce 2018-11-17 stsp size_t tagger_len = strlen(tag->tagger);
1005 f4a881ce 2018-11-17 stsp size_t tagmsg_len = strlen(tag->tagmsg);
1007 f4a881ce 2018-11-17 stsp total = sizeof(*itag) + tag_len + tagger_len + tagmsg_len;
1009 f4a881ce 2018-11-17 stsp buf = malloc(total);
1010 f4a881ce 2018-11-17 stsp if (buf == NULL)
1011 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
1013 f4a881ce 2018-11-17 stsp itag = (struct got_imsg_tag_object *)buf;
1014 f4a881ce 2018-11-17 stsp memcpy(itag->id, tag->id.sha1, sizeof(itag->id));
1015 f4a881ce 2018-11-17 stsp itag->obj_type = tag->obj_type;
1016 f4a881ce 2018-11-17 stsp itag->tag_len = tag_len;
1017 f4a881ce 2018-11-17 stsp itag->tagger_len = tagger_len;
1018 f4a881ce 2018-11-17 stsp itag->tagger_time = tag->tagger_time;
1019 f4a881ce 2018-11-17 stsp itag->tagger_gmtoff = tag->tagger_gmtoff;
1020 f4a881ce 2018-11-17 stsp itag->tagmsg_len = tagmsg_len;
1022 f4a881ce 2018-11-17 stsp len = sizeof(*itag);
1023 f4a881ce 2018-11-17 stsp memcpy(buf + len, tag->tag, tag_len);
1024 f4a881ce 2018-11-17 stsp len += tag_len;
1025 f4a881ce 2018-11-17 stsp memcpy(buf + len, tag->tagger, tagger_len);
1026 f4a881ce 2018-11-17 stsp len += tagger_len;
1028 f4a881ce 2018-11-17 stsp if (imsg_compose(ibuf, GOT_IMSG_TAG, 0, 0, -1, buf, len) == -1) {
1029 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose TAG");
1030 f4a881ce 2018-11-17 stsp goto done;
1033 f4a881ce 2018-11-17 stsp if (tagmsg_len == 0 ||
1034 f4a881ce 2018-11-17 stsp tagmsg_len + len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
1035 f4a881ce 2018-11-17 stsp err = flush_imsg(ibuf);
1037 f4a881ce 2018-11-17 stsp goto done;
1039 f4a881ce 2018-11-17 stsp err = send_tagmsg(ibuf, tag, tagmsg_len);
1041 f4a881ce 2018-11-17 stsp free(buf);
1042 f4a881ce 2018-11-17 stsp return err;
1045 f4a881ce 2018-11-17 stsp const struct got_error *
1046 f4a881ce 2018-11-17 stsp got_privsep_recv_tag(struct got_tag_object **tag, struct imsgbuf *ibuf)
1048 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1049 f4a881ce 2018-11-17 stsp struct imsg imsg;
1050 f4a881ce 2018-11-17 stsp struct got_imsg_tag_object *itag;
1051 f4a881ce 2018-11-17 stsp size_t len, datalen;
1052 f4a881ce 2018-11-17 stsp const size_t min_datalen =
1053 f4a881ce 2018-11-17 stsp MIN(sizeof(struct got_imsg_error),
1054 f4a881ce 2018-11-17 stsp sizeof(struct got_imsg_tag_object));
1056 f4a881ce 2018-11-17 stsp *tag = NULL;
1058 f4a881ce 2018-11-17 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1060 f4a881ce 2018-11-17 stsp return err;
1062 f4a881ce 2018-11-17 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1065 f4a881ce 2018-11-17 stsp switch (imsg.hdr.type) {
1066 f4a881ce 2018-11-17 stsp case GOT_IMSG_TAG:
1067 f4a881ce 2018-11-17 stsp if (datalen < sizeof(*itag)) {
1068 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1071 f4a881ce 2018-11-17 stsp itag = imsg.data;
1072 f4a881ce 2018-11-17 stsp if (datalen != sizeof(*itag) + itag->tag_len +
1073 f4a881ce 2018-11-17 stsp itag->tagger_len) {
1074 f4a881ce 2018-11-17 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1077 f4a881ce 2018-11-17 stsp len += sizeof(*itag);
1079 f4a881ce 2018-11-17 stsp *tag = calloc(1, sizeof(**tag));
1080 f4a881ce 2018-11-17 stsp if (*tag == NULL) {
1081 638f9024 2019-05-13 stsp err = got_error_from_errno("calloc");
1085 f4a881ce 2018-11-17 stsp memcpy((*tag)->id.sha1, itag->id, SHA1_DIGEST_LENGTH);
1087 f4a881ce 2018-11-17 stsp if (itag->tag_len == 0) {
1088 f4a881ce 2018-11-17 stsp (*tag)->tag = strdup("");
1089 f4a881ce 2018-11-17 stsp if ((*tag)->tag == NULL) {
1090 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1094 f4a881ce 2018-11-17 stsp (*tag)->tag = malloc(itag->tag_len + 1);
1095 f4a881ce 2018-11-17 stsp if ((*tag)->tag == NULL) {
1096 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1099 f4a881ce 2018-11-17 stsp memcpy((*tag)->tag, imsg.data + len,
1100 f4a881ce 2018-11-17 stsp itag->tag_len);
1101 f4a881ce 2018-11-17 stsp (*tag)->tag[itag->tag_len] = '\0';
1103 f4a881ce 2018-11-17 stsp len += itag->tag_len;
1105 f4a881ce 2018-11-17 stsp (*tag)->obj_type = itag->obj_type;
1106 f4a881ce 2018-11-17 stsp (*tag)->tagger_time = itag->tagger_time;
1107 f4a881ce 2018-11-17 stsp (*tag)->tagger_gmtoff = itag->tagger_gmtoff;
1109 f4a881ce 2018-11-17 stsp if (itag->tagger_len == 0) {
1110 f4a881ce 2018-11-17 stsp (*tag)->tagger = strdup("");
1111 f4a881ce 2018-11-17 stsp if ((*tag)->tagger == NULL) {
1112 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1116 f4a881ce 2018-11-17 stsp (*tag)->tagger = malloc(itag->tagger_len + 1);
1117 f4a881ce 2018-11-17 stsp if ((*tag)->tagger == NULL) {
1118 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1121 f4a881ce 2018-11-17 stsp memcpy((*tag)->tagger, imsg.data + len,
1122 f4a881ce 2018-11-17 stsp itag->tagger_len);
1123 f4a881ce 2018-11-17 stsp (*tag)->tagger[itag->tagger_len] = '\0';
1125 f4a881ce 2018-11-17 stsp len += itag->tagger_len;
1127 f4a881ce 2018-11-17 stsp if (itag->tagmsg_len == 0) {
1128 f4a881ce 2018-11-17 stsp (*tag)->tagmsg = strdup("");
1129 f4a881ce 2018-11-17 stsp if ((*tag)->tagmsg == NULL) {
1130 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
1134 f4a881ce 2018-11-17 stsp size_t offset = 0, remain = itag->tagmsg_len;
1136 f4a881ce 2018-11-17 stsp (*tag)->tagmsg = malloc(itag->tagmsg_len + 1);
1137 f4a881ce 2018-11-17 stsp if ((*tag)->tagmsg == NULL) {
1138 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1141 f4a881ce 2018-11-17 stsp while (remain > 0) {
1142 f4a881ce 2018-11-17 stsp struct imsg imsg_log;
1143 f4a881ce 2018-11-17 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE,
1146 f4a881ce 2018-11-17 stsp err = got_privsep_recv_imsg(&imsg_log, ibuf, n);
1148 f4a881ce 2018-11-17 stsp return err;
1150 f4a881ce 2018-11-17 stsp if (imsg_log.hdr.type != GOT_IMSG_TAG_TAGMSG)
1151 f4a881ce 2018-11-17 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
1153 f4a881ce 2018-11-17 stsp memcpy((*tag)->tagmsg + offset, imsg_log.data,
1155 f4a881ce 2018-11-17 stsp imsg_free(&imsg_log);
1156 f4a881ce 2018-11-17 stsp offset += n;
1157 f4a881ce 2018-11-17 stsp remain -= n;
1159 f4a881ce 2018-11-17 stsp (*tag)->tagmsg[itag->tagmsg_len] = '\0';
1164 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1168 ff6b18f8 2018-04-24 stsp imsg_free(&imsg);
1170 2178c42e 2018-04-22 stsp return err;
1173 876c234b 2018-09-10 stsp const struct got_error *
1174 876c234b 2018-09-10 stsp got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
1175 876c234b 2018-09-10 stsp struct got_packidx *packidx)
1177 41496140 2019-02-21 stsp const struct got_error *err = NULL;
1178 876c234b 2018-09-10 stsp struct got_imsg_packidx ipackidx;
1179 876c234b 2018-09-10 stsp struct got_imsg_pack ipack;
1182 876c234b 2018-09-10 stsp ipackidx.len = packidx->len;
1183 876c234b 2018-09-10 stsp fd = dup(packidx->fd);
1184 876c234b 2018-09-10 stsp if (fd == -1)
1185 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1187 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
1188 41496140 2019-02-21 stsp sizeof(ipackidx)) == -1) {
1189 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose PACKIDX");
1190 41496140 2019-02-21 stsp close(fd);
1191 41496140 2019-02-21 stsp return err;
1194 876c234b 2018-09-10 stsp if (strlcpy(ipack.path_packfile, pack->path_packfile,
1195 876c234b 2018-09-10 stsp sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
1196 876c234b 2018-09-10 stsp return got_error(GOT_ERR_NO_SPACE);
1197 876c234b 2018-09-10 stsp ipack.filesize = pack->filesize;
1199 876c234b 2018-09-10 stsp fd = dup(pack->fd);
1200 876c234b 2018-09-10 stsp if (fd == -1)
1201 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1203 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
1205 638f9024 2019-05-13 stsp err = got_error_from_errno("imsg_compose PACK");
1206 41496140 2019-02-21 stsp close(fd);
1207 41496140 2019-02-21 stsp return err;
1210 876c234b 2018-09-10 stsp return flush_imsg(ibuf);
1213 876c234b 2018-09-10 stsp const struct got_error *
1214 106807b4 2018-09-15 stsp got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx,
1215 106807b4 2018-09-15 stsp struct got_object_id *id)
1217 876c234b 2018-09-10 stsp struct got_imsg_packed_object iobj;
1219 876c234b 2018-09-10 stsp iobj.idx = idx;
1220 106807b4 2018-09-15 stsp memcpy(iobj.id, id->sha1, sizeof(iobj.id));
1222 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
1223 876c234b 2018-09-10 stsp &iobj, sizeof(iobj)) == -1)
1224 638f9024 2019-05-13 stsp return got_error_from_errno("imsg_compose "
1225 230a42bd 2019-05-11 jcs "PACKED_OBJECT_REQUEST");
1227 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1230 aba9c984 2019-09-08 stsp const struct got_error *
1231 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_parse_req(struct imsgbuf *ibuf, int fd)
1233 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1235 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_PARSE_REQUEST, 0, 0, fd,
1236 aba9c984 2019-09-08 stsp NULL, 0) == -1) {
1237 aba9c984 2019-09-08 stsp err = got_error_from_errno("imsg_compose "
1238 aba9c984 2019-09-08 stsp "GITCONFIG_PARSE_REQUEST");
1239 aba9c984 2019-09-08 stsp close(fd);
1240 aba9c984 2019-09-08 stsp return err;
1243 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1246 aba9c984 2019-09-08 stsp const struct got_error *
1247 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_repository_format_version_req(struct imsgbuf *ibuf)
1249 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1250 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST, 0, 0, -1,
1251 aba9c984 2019-09-08 stsp NULL, 0) == -1)
1252 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1253 aba9c984 2019-09-08 stsp "GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST");
1255 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1258 aba9c984 2019-09-08 stsp const struct got_error *
1259 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_author_name_req(struct imsgbuf *ibuf)
1261 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1262 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST, 0, 0, -1, NULL, 0) == -1)
1263 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1264 aba9c984 2019-09-08 stsp "GITCONFIG_AUTHOR_NAME_REQUEST");
1266 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1269 aba9c984 2019-09-08 stsp const struct got_error *
1270 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_author_email_req(struct imsgbuf *ibuf)
1272 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf,
1273 aba9c984 2019-09-08 stsp GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST, 0, 0, -1, NULL, 0) == -1)
1274 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose "
1275 aba9c984 2019-09-08 stsp "GITCONFIG_AUTHOR_EMAIL_REQUEST");
1277 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1280 aba9c984 2019-09-08 stsp const struct got_error *
1281 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_str(struct imsgbuf *ibuf, const char *value)
1283 aba9c984 2019-09-08 stsp size_t len = value ? strlen(value) + 1 : 0;
1285 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_STR_VAL, 0, 0, -1,
1286 aba9c984 2019-09-08 stsp value, len) == -1)
1287 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose GITCONFIG_STR_VAL");
1289 aba9c984 2019-09-08 stsp return flush_imsg(ibuf);
1292 aba9c984 2019-09-08 stsp const struct got_error *
1293 aba9c984 2019-09-08 stsp got_privsep_recv_gitconfig_str(char **str, struct imsgbuf *ibuf)
1295 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1296 aba9c984 2019-09-08 stsp struct imsg imsg;
1297 aba9c984 2019-09-08 stsp size_t datalen;
1298 aba9c984 2019-09-08 stsp const size_t min_datalen = 0;
1300 aba9c984 2019-09-08 stsp *str = NULL;
1302 aba9c984 2019-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1304 aba9c984 2019-09-08 stsp return err;
1305 aba9c984 2019-09-08 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1307 aba9c984 2019-09-08 stsp switch (imsg.hdr.type) {
1308 aba9c984 2019-09-08 stsp case GOT_IMSG_GITCONFIG_STR_VAL:
1309 aba9c984 2019-09-08 stsp if (datalen == 0)
1311 aba9c984 2019-09-08 stsp *str = malloc(datalen);
1312 aba9c984 2019-09-08 stsp if (*str == NULL) {
1313 aba9c984 2019-09-08 stsp err = got_error_from_errno("malloc");
1316 aba9c984 2019-09-08 stsp if (strlcpy(*str, imsg.data, datalen) >= datalen)
1317 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_NO_SPACE);
1320 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1324 aba9c984 2019-09-08 stsp imsg_free(&imsg);
1325 aba9c984 2019-09-08 stsp return err;
1328 aba9c984 2019-09-08 stsp const struct got_error *
1329 aba9c984 2019-09-08 stsp got_privsep_send_gitconfig_int(struct imsgbuf *ibuf, int value)
1331 aba9c984 2019-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_INT_VAL, 0, 0, -1,
1332 aba9c984 2019-09-08 stsp &value, sizeof(value)) == -1)
1333 aba9c984 2019-09-08 stsp return got_error_from_errno("imsg_compose GITCONFIG_INT_VAL");
1335 876c234b 2018-09-10 stsp return flush_imsg(ibuf);
1338 63219cd2 2019-01-04 stsp const struct got_error *
1339 aba9c984 2019-09-08 stsp got_privsep_recv_gitconfig_int(int *val, struct imsgbuf *ibuf)
1341 aba9c984 2019-09-08 stsp const struct got_error *err = NULL;
1342 aba9c984 2019-09-08 stsp struct imsg imsg;
1343 aba9c984 2019-09-08 stsp size_t datalen;
1344 aba9c984 2019-09-08 stsp const size_t min_datalen =
1345 aba9c984 2019-09-08 stsp MIN(sizeof(struct got_imsg_error), sizeof(int));
1349 aba9c984 2019-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
1351 aba9c984 2019-09-08 stsp return err;
1352 aba9c984 2019-09-08 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1354 aba9c984 2019-09-08 stsp switch (imsg.hdr.type) {
1355 aba9c984 2019-09-08 stsp case GOT_IMSG_GITCONFIG_INT_VAL:
1356 aba9c984 2019-09-08 stsp if (datalen != sizeof(*val)) {
1357 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1360 aba9c984 2019-09-08 stsp memcpy(val, imsg.data, sizeof(*val));
1363 aba9c984 2019-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1367 aba9c984 2019-09-08 stsp imsg_free(&imsg);
1368 aba9c984 2019-09-08 stsp return err;
1371 aba9c984 2019-09-08 stsp const struct got_error *
1372 63219cd2 2019-01-04 stsp got_privsep_unveil_exec_helpers(void)
1374 c39c25dd 2019-08-09 stsp const char *helpers[] = {
1375 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_PACK,
1376 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_OBJECT,
1377 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_COMMIT,
1378 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_TREE,
1379 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_BLOB,
1380 c39c25dd 2019-08-09 stsp GOT_PATH_PROG_READ_TAG,
1381 aba9c984 2019-09-08 stsp GOT_PATH_PROG_READ_GITCONFIG,
1385 c39c25dd 2019-08-09 stsp for (i = 0; i < nitems(helpers); i++) {
1386 c39c25dd 2019-08-09 stsp if (unveil(helpers[i], "x") == 0)
1388 c39c25dd 2019-08-09 stsp return got_error_from_errno2("unveil", helpers[i]);
1391 63219cd2 2019-01-04 stsp return NULL;
1395 aba9c984 2019-09-08 stsp got_privsep_exec_child(int imsg_fds[2], const char *path, const char *repo_path)
1397 aba9c984 2019-09-08 stsp if (close(imsg_fds[0]) != 0) {
1398 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1402 aba9c984 2019-09-08 stsp if (dup2(imsg_fds[1], GOT_IMSG_FD_CHILD) == -1) {
1403 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1406 aba9c984 2019-09-08 stsp if (closefrom(GOT_IMSG_FD_CHILD + 1) == -1) {
1407 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), strerror(errno));
1411 aba9c984 2019-09-08 stsp if (execl(path, path, repo_path, (char *)NULL) == -1) {
1412 aba9c984 2019-09-08 stsp fprintf(stderr, "%s: %s: %s\n", getprogname(), path,
1413 aba9c984 2019-09-08 stsp strerror(errno));
