2 2178c42e 2018-04-22 stsp * Copyright (c) 2018 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"
37 2178c42e 2018-04-22 stsp #include "got_lib_sha1.h"
38 2178c42e 2018-04-22 stsp #include "got_lib_delta.h"
39 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
40 2178c42e 2018-04-22 stsp #include "got_lib_object.h"
41 a440fac0 2018-09-06 stsp #include "got_lib_object_parse.h"
42 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
43 876c234b 2018-09-10 stsp #include "got_lib_pack.h"
46 2178c42e 2018-04-22 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
49 2178c42e 2018-04-22 stsp static const struct got_error *
50 2178c42e 2018-04-22 stsp poll_fd(int fd, int events, int timeout)
52 2178c42e 2018-04-22 stsp struct pollfd pfd[1];
55 2178c42e 2018-04-22 stsp pfd[0].fd = fd;
56 2178c42e 2018-04-22 stsp pfd[0].events = events;
58 2178c42e 2018-04-22 stsp n = poll(pfd, 1, timeout);
59 2178c42e 2018-04-22 stsp if (n == -1)
60 2178c42e 2018-04-22 stsp return got_error_from_errno();
62 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_TIMEOUT);
63 2178c42e 2018-04-22 stsp if (pfd[0].revents & (POLLERR | POLLNVAL))
64 2178c42e 2018-04-22 stsp return got_error_from_errno();
65 2178c42e 2018-04-22 stsp if (pfd[0].revents & (events | POLLHUP))
66 2178c42e 2018-04-22 stsp return NULL;
68 2178c42e 2018-04-22 stsp return got_error(GOT_ERR_INTERRUPT);
71 c4eae628 2018-04-23 stsp static const struct got_error *
72 e033d803 2018-04-23 stsp read_imsg(struct imsgbuf *ibuf)
74 fe36cf76 2018-04-23 stsp const struct got_error *err;
77 fe36cf76 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLIN, INFTIM);
81 fe36cf76 2018-04-23 stsp n = imsg_read(ibuf);
82 fe36cf76 2018-04-23 stsp if (n == -1) {
83 fe36cf76 2018-04-23 stsp if (errno == EAGAIN) /* Could be a file-descriptor leak. */
84 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
85 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_READ);
88 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_PIPE);
90 e033d803 2018-04-23 stsp return NULL;
93 ad242220 2018-09-08 stsp const struct got_error *
94 876c234b 2018-09-10 stsp got_privsep_wait_for_child(pid_t pid)
96 876c234b 2018-09-10 stsp int child_status;
98 876c234b 2018-09-10 stsp waitpid(pid, &child_status, 0);
100 876c234b 2018-09-10 stsp if (!WIFEXITED(child_status))
101 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_DIED);
103 876c234b 2018-09-10 stsp if (WEXITSTATUS(child_status) != 0)
104 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_EXIT);
106 876c234b 2018-09-10 stsp return NULL;
109 876c234b 2018-09-10 stsp const struct got_error *
110 ad242220 2018-09-08 stsp got_privsep_recv_imsg(struct imsg *imsg, struct imsgbuf *ibuf, size_t min_datalen)
112 e033d803 2018-04-23 stsp const struct got_error *err;
115 e033d803 2018-04-23 stsp n = imsg_get(ibuf, imsg);
116 876c234b 2018-09-10 stsp if (n == -1)
117 876c234b 2018-09-10 stsp return got_error_from_errno();
119 876c234b 2018-09-10 stsp while (n == 0) {
120 876c234b 2018-09-10 stsp err = read_imsg(ibuf);
122 876c234b 2018-09-10 stsp return err;
123 876c234b 2018-09-10 stsp n = imsg_get(ibuf, imsg);
126 fe36cf76 2018-04-23 stsp if (imsg->hdr.len < IMSG_HEADER_SIZE + min_datalen)
127 fe36cf76 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
129 fe36cf76 2018-04-23 stsp return NULL;
132 fe36cf76 2018-04-23 stsp static const struct got_error *
133 c4eae628 2018-04-23 stsp recv_imsg_error(struct imsg *imsg, size_t datalen)
135 c4eae628 2018-04-23 stsp struct got_imsg_error ierr;
137 c4eae628 2018-04-23 stsp if (datalen != sizeof(ierr))
138 c4eae628 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
140 c4eae628 2018-04-23 stsp memcpy(&ierr, imsg->data, sizeof(ierr));
141 c4eae628 2018-04-23 stsp if (ierr.code == GOT_ERR_ERRNO) {
142 c4eae628 2018-04-23 stsp static struct got_error serr;
143 c4eae628 2018-04-23 stsp serr.code = GOT_ERR_ERRNO;
144 c4eae628 2018-04-23 stsp serr.msg = strerror(ierr.errno_code);
145 c4eae628 2018-04-23 stsp return &serr;
148 c4eae628 2018-04-23 stsp return got_error(ierr.code);
151 2178c42e 2018-04-22 stsp /* Attempt to send an error in an imsg. Complain on stderr as a last resort. */
153 2178c42e 2018-04-22 stsp got_privsep_send_error(struct imsgbuf *ibuf, const struct got_error *err)
155 2178c42e 2018-04-22 stsp const struct got_error *poll_err;
156 2178c42e 2018-04-22 stsp struct got_imsg_error ierr;
159 2178c42e 2018-04-22 stsp ierr.code = err->code;
160 2178c42e 2018-04-22 stsp if (err->code == GOT_ERR_ERRNO)
161 2178c42e 2018-04-22 stsp ierr.errno_code = errno;
163 2178c42e 2018-04-22 stsp ierr.errno_code = 0;
164 2178c42e 2018-04-22 stsp ret = imsg_compose(ibuf, GOT_IMSG_ERROR, 0, 0, -1, &ierr, sizeof(ierr));
165 2178c42e 2018-04-22 stsp if (ret != -1) {
166 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_compose: %s\n",
167 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
171 2178c42e 2018-04-22 stsp poll_err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
172 5d43e84d 2018-04-23 stsp if (poll_err) {
173 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": poll: %s\n",
174 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, poll_err->msg);
178 2178c42e 2018-04-22 stsp ret = imsg_flush(ibuf);
179 5d43e84d 2018-04-23 stsp if (ret == -1) {
180 2178c42e 2018-04-22 stsp fprintf(stderr, "%s: error %d \"%s\": imsg_flush: %s\n",
181 2178c42e 2018-04-22 stsp getprogname(), err->code, err->msg, strerror(errno));
186 e033d803 2018-04-23 stsp static const struct got_error *
187 e033d803 2018-04-23 stsp flush_imsg(struct imsgbuf *ibuf)
189 e033d803 2018-04-23 stsp const struct got_error *err;
191 e033d803 2018-04-23 stsp err = poll_fd(ibuf->fd, POLLOUT, INFTIM);
193 e033d803 2018-04-23 stsp return err;
195 e033d803 2018-04-23 stsp if (imsg_flush(ibuf) == -1)
196 e033d803 2018-04-23 stsp return got_error_from_errno();
198 e033d803 2018-04-23 stsp return NULL;
201 ad242220 2018-09-08 stsp const struct got_error *
202 ad242220 2018-09-08 stsp got_privsep_send_stop(int fd)
204 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
205 ad242220 2018-09-08 stsp struct imsgbuf ibuf;
207 ad242220 2018-09-08 stsp imsg_init(&ibuf, fd);
209 ad242220 2018-09-08 stsp if (imsg_compose(&ibuf, GOT_IMSG_STOP, 0, 0, -1, NULL, 0) == -1)
210 ad242220 2018-09-08 stsp return got_error_from_errno();
212 ad242220 2018-09-08 stsp err = flush_imsg(&ibuf);
213 ad242220 2018-09-08 stsp imsg_clear(&ibuf);
214 ad242220 2018-09-08 stsp return err;
217 d6bda086 2018-09-10 stsp static const struct got_error *
218 d6bda086 2018-09-10 stsp send_delta(struct got_delta *delta, struct imsgbuf *ibuf)
220 d6bda086 2018-09-10 stsp struct got_imsg_delta idelta;
221 d6bda086 2018-09-10 stsp size_t offset, remain;
223 d6bda086 2018-09-10 stsp idelta.offset = delta->offset;
224 d6bda086 2018-09-10 stsp idelta.tslen = delta->tslen;
225 d6bda086 2018-09-10 stsp idelta.type = delta->type;
226 d6bda086 2018-09-10 stsp idelta.size = delta->size;
227 d6bda086 2018-09-10 stsp idelta.data_offset = delta->data_offset;
228 d6bda086 2018-09-10 stsp idelta.delta_len = delta->delta_len;
230 d6bda086 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_DELTA, 0, 0, -1,
231 d6bda086 2018-09-10 stsp &idelta, sizeof(idelta)) == -1)
232 d6bda086 2018-09-10 stsp return got_error_from_errno();
234 d6bda086 2018-09-10 stsp if (imsg_flush(ibuf) == -1)
235 d6bda086 2018-09-10 stsp return got_error_from_errno();
237 d6bda086 2018-09-10 stsp offset = 0;
238 d6bda086 2018-09-10 stsp remain = delta->delta_len;
239 d6bda086 2018-09-10 stsp while (remain > 0) {
240 d6bda086 2018-09-10 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
242 d6bda086 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_DELTA_STREAM, 0, 0, -1,
243 d6bda086 2018-09-10 stsp delta->delta_buf + offset, n) == -1)
244 d6bda086 2018-09-10 stsp return got_error_from_errno();
246 d6bda086 2018-09-10 stsp if (imsg_flush(ibuf) == -1)
247 d6bda086 2018-09-10 stsp return got_error_from_errno();
249 d6bda086 2018-09-10 stsp offset += n;
250 d6bda086 2018-09-10 stsp remain -= n;
253 d6bda086 2018-09-10 stsp return NULL;
256 ad242220 2018-09-08 stsp const struct got_error *
257 ad242220 2018-09-08 stsp got_privsep_send_obj_req(struct imsgbuf *ibuf, int fd, struct got_object *obj)
259 d6bda086 2018-09-10 stsp const struct got_error *err = NULL;
260 ad242220 2018-09-08 stsp struct got_imsg_object iobj, *iobjp = NULL;
261 ad242220 2018-09-08 stsp size_t iobj_size = 0;
262 ad242220 2018-09-08 stsp int imsg_code = GOT_IMSG_OBJECT_REQUEST;
265 ad242220 2018-09-08 stsp switch (obj->type) {
266 ad242220 2018-09-08 stsp case GOT_OBJ_TYPE_TREE:
267 ad242220 2018-09-08 stsp imsg_code = GOT_IMSG_TREE_REQUEST;
269 ad242220 2018-09-08 stsp case GOT_OBJ_TYPE_COMMIT:
270 ad242220 2018-09-08 stsp imsg_code = GOT_IMSG_COMMIT_REQUEST;
272 d6bda086 2018-09-10 stsp /* Blobs are handled in got_privsep_send_blob_req(). */
274 ad242220 2018-09-08 stsp return got_error(GOT_ERR_OBJ_TYPE);
277 ad242220 2018-09-08 stsp iobj.type = obj->type;
278 ad242220 2018-09-08 stsp iobj.flags = obj->flags;
279 ad242220 2018-09-08 stsp iobj.hdrlen = obj->hdrlen;
280 ad242220 2018-09-08 stsp iobj.size = obj->size;
281 ad242220 2018-09-08 stsp iobj.ndeltas = 0;
282 876c234b 2018-09-10 stsp if (iobj.flags & GOT_OBJ_FLAG_PACKED)
283 876c234b 2018-09-10 stsp iobj.pack_offset = obj->pack_offset;
285 ad242220 2018-09-08 stsp iobjp = &iobj;
286 ad242220 2018-09-08 stsp iobj_size = sizeof(iobj);
289 ad242220 2018-09-08 stsp if (imsg_compose(ibuf, imsg_code, 0, 0, fd, iobjp, iobj_size) == -1)
290 ad242220 2018-09-08 stsp return got_error_from_errno();
292 d6bda086 2018-09-10 stsp err = flush_imsg(ibuf);
294 d6bda086 2018-09-10 stsp return err;
296 d6bda086 2018-09-10 stsp if (obj && obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
297 d6bda086 2018-09-10 stsp struct got_delta *delta;
298 d6bda086 2018-09-10 stsp SIMPLEQ_FOREACH(delta, &obj->deltas.entries, entry) {
299 d6bda086 2018-09-10 stsp err = send_delta(delta, ibuf);
305 d6bda086 2018-09-10 stsp return err;
308 2178c42e 2018-04-22 stsp const struct got_error *
309 ad242220 2018-09-08 stsp got_privsep_send_blob_req(struct imsgbuf *ibuf, int outfd, int infd)
311 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
313 ad242220 2018-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_REQUEST, 0, 0, infd, NULL, 0)
315 ad242220 2018-09-08 stsp close(infd);
316 ad242220 2018-09-08 stsp close(outfd);
317 ad242220 2018-09-08 stsp return got_error_from_errno();
320 ad242220 2018-09-08 stsp err = flush_imsg(ibuf);
322 ad242220 2018-09-08 stsp close(outfd);
323 ad242220 2018-09-08 stsp return err;
326 ad242220 2018-09-08 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB_OUTFD, 0, 0, outfd, NULL, 0)
328 ad242220 2018-09-08 stsp close(outfd);
329 ad242220 2018-09-08 stsp return got_error_from_errno();
332 ad242220 2018-09-08 stsp return flush_imsg(ibuf);
335 ad242220 2018-09-08 stsp const struct got_error *
336 876c234b 2018-09-10 stsp got_privsep_send_obj(struct imsgbuf *ibuf, struct got_object *obj)
338 876c234b 2018-09-10 stsp const struct got_error *err = NULL;
339 2178c42e 2018-04-22 stsp struct got_imsg_object iobj;
340 876c234b 2018-09-10 stsp struct got_delta *delta;
342 2178c42e 2018-04-22 stsp iobj.type = obj->type;
343 2178c42e 2018-04-22 stsp iobj.flags = obj->flags;
344 2178c42e 2018-04-22 stsp iobj.hdrlen = obj->hdrlen;
345 2178c42e 2018-04-22 stsp iobj.size = obj->size;
346 876c234b 2018-09-10 stsp iobj.ndeltas = obj->deltas.nentries;
347 876c234b 2018-09-10 stsp if (iobj.flags & GOT_OBJ_FLAG_PACKED)
348 876c234b 2018-09-10 stsp iobj.pack_offset = obj->pack_offset;
350 2178c42e 2018-04-22 stsp if (imsg_compose(ibuf, GOT_IMSG_OBJECT, 0, 0, -1, &iobj, sizeof(iobj))
352 2178c42e 2018-04-22 stsp return got_error_from_errno();
354 876c234b 2018-09-10 stsp err = flush_imsg(ibuf);
356 876c234b 2018-09-10 stsp return err;
358 876c234b 2018-09-10 stsp SIMPLEQ_FOREACH(delta, &obj->deltas.entries, entry) {
359 876c234b 2018-09-10 stsp err = send_delta(delta, ibuf);
364 876c234b 2018-09-10 stsp return err;
367 876c234b 2018-09-10 stsp static const struct got_error *
368 876c234b 2018-09-10 stsp receive_delta(struct got_delta **delta, struct imsgbuf *ibuf)
370 876c234b 2018-09-10 stsp const struct got_error *err = NULL;
371 876c234b 2018-09-10 stsp struct imsg imsg;
372 876c234b 2018-09-10 stsp struct got_imsg_delta idelta;
373 876c234b 2018-09-10 stsp uint8_t *delta_buf = NULL;
374 876c234b 2018-09-10 stsp const size_t min_datalen =
375 876c234b 2018-09-10 stsp MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_delta));
376 876c234b 2018-09-10 stsp size_t datalen, offset, remain;
378 876c234b 2018-09-10 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
380 876c234b 2018-09-10 stsp return err;
382 876c234b 2018-09-10 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
383 876c234b 2018-09-10 stsp if (imsg.hdr.type == GOT_IMSG_ERROR)
384 876c234b 2018-09-10 stsp return recv_imsg_error(&imsg, datalen);
386 876c234b 2018-09-10 stsp if (imsg.hdr.type != GOT_IMSG_DELTA)
387 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
388 876c234b 2018-09-10 stsp if (datalen != sizeof(idelta))
389 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
391 876c234b 2018-09-10 stsp memcpy(&idelta, imsg.data, sizeof(idelta));
392 876c234b 2018-09-10 stsp imsg_free(&imsg);
394 876c234b 2018-09-10 stsp switch (idelta.type) {
395 876c234b 2018-09-10 stsp case GOT_OBJ_TYPE_OFFSET_DELTA:
396 876c234b 2018-09-10 stsp case GOT_OBJ_TYPE_REF_DELTA:
397 876c234b 2018-09-10 stsp if (idelta.delta_len < GOT_DELTA_STREAM_LENGTH_MIN)
398 876c234b 2018-09-10 stsp return got_error(GOT_ERR_BAD_DELTA);
401 876c234b 2018-09-10 stsp if (idelta.delta_len != 0)
402 876c234b 2018-09-10 stsp return got_error(GOT_ERR_BAD_DELTA);
406 876c234b 2018-09-10 stsp if (idelta.delta_len > 0) {
407 876c234b 2018-09-10 stsp delta_buf = calloc(1, idelta.delta_len);
408 876c234b 2018-09-10 stsp if (delta_buf == NULL)
409 876c234b 2018-09-10 stsp return got_error_from_errno();
411 876c234b 2018-09-10 stsp offset = 0;
412 876c234b 2018-09-10 stsp remain = idelta.delta_len;
413 876c234b 2018-09-10 stsp while (remain > 0) {
414 876c234b 2018-09-10 stsp size_t n = MIN(MAX_IMSGSIZE - IMSG_HEADER_SIZE, remain);
416 876c234b 2018-09-10 stsp err = got_privsep_recv_imsg(&imsg, ibuf, n);
418 876c234b 2018-09-10 stsp return err;
420 876c234b 2018-09-10 stsp if (imsg.hdr.type == GOT_IMSG_ERROR)
421 876c234b 2018-09-10 stsp return recv_imsg_error(&imsg, datalen);
423 876c234b 2018-09-10 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
426 876c234b 2018-09-10 stsp if (imsg.hdr.type != GOT_IMSG_DELTA_STREAM)
427 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
429 876c234b 2018-09-10 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
430 876c234b 2018-09-10 stsp if (datalen != n)
431 876c234b 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
433 876c234b 2018-09-10 stsp memcpy(delta_buf + offset, imsg.data, n);
434 876c234b 2018-09-10 stsp imsg_free(&imsg);
436 876c234b 2018-09-10 stsp offset += n;
437 876c234b 2018-09-10 stsp remain -= n;
441 876c234b 2018-09-10 stsp *delta = got_delta_open(idelta.offset, idelta.tslen, idelta.type,
442 876c234b 2018-09-10 stsp idelta.size, idelta.data_offset, delta_buf, idelta.delta_len);
443 876c234b 2018-09-10 stsp if (*delta == NULL) {
444 876c234b 2018-09-10 stsp err = got_error_from_errno();
445 876c234b 2018-09-10 stsp free(delta_buf);
448 cfd633c2 2018-09-10 stsp return err;
451 cfd633c2 2018-09-10 stsp const struct got_error *
452 cfd633c2 2018-09-10 stsp got_privsep_get_imsg_obj(struct got_object **obj, struct imsg *imsg,
453 cfd633c2 2018-09-10 stsp struct imsgbuf *ibuf)
455 cfd633c2 2018-09-10 stsp const struct got_error *err = NULL;
456 cfd633c2 2018-09-10 stsp struct got_imsg_object iobj;
457 cfd633c2 2018-09-10 stsp size_t datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
460 cfd633c2 2018-09-10 stsp if (datalen != sizeof(iobj))
461 cfd633c2 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
463 cfd633c2 2018-09-10 stsp memcpy(&iobj, imsg->data, sizeof(iobj));
464 cfd633c2 2018-09-10 stsp if (iobj.ndeltas < 0 ||
465 cfd633c2 2018-09-10 stsp iobj.ndeltas > GOT_DELTA_CHAIN_RECURSION_MAX)
466 cfd633c2 2018-09-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
468 cfd633c2 2018-09-10 stsp if (iobj.ndeltas > 0 &&
469 cfd633c2 2018-09-10 stsp (iobj.flags & GOT_OBJ_FLAG_DELTIFIED) == 0)
470 cfd633c2 2018-09-10 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
472 cfd633c2 2018-09-10 stsp *obj = calloc(1, sizeof(**obj));
473 cfd633c2 2018-09-10 stsp if (*obj == NULL)
474 cfd633c2 2018-09-10 stsp return got_error_from_errno();
476 cfd633c2 2018-09-10 stsp (*obj)->type = iobj.type;
477 cfd633c2 2018-09-10 stsp (*obj)->flags = iobj.flags;
478 cfd633c2 2018-09-10 stsp (*obj)->hdrlen = iobj.hdrlen;
479 cfd633c2 2018-09-10 stsp (*obj)->size = iobj.size;
480 cfd633c2 2018-09-10 stsp /* id and path_packfile might be copied in by caller */
481 cfd633c2 2018-09-10 stsp (*obj)->pack_offset = iobj.pack_offset;
482 cfd633c2 2018-09-10 stsp SIMPLEQ_INIT(&(*obj)->deltas.entries);
483 cfd633c2 2018-09-10 stsp for (i = 0; i < iobj.ndeltas; i++) {
484 cfd633c2 2018-09-10 stsp struct got_delta *delta;
485 cfd633c2 2018-09-10 stsp err = receive_delta(&delta, ibuf);
488 cfd633c2 2018-09-10 stsp (*obj)->deltas.nentries++;
489 cfd633c2 2018-09-10 stsp SIMPLEQ_INSERT_TAIL(&(*obj)->deltas.entries, delta,
493 876c234b 2018-09-10 stsp return err;
496 2178c42e 2018-04-22 stsp const struct got_error *
497 2178c42e 2018-04-22 stsp got_privsep_recv_obj(struct got_object **obj, struct imsgbuf *ibuf)
499 2178c42e 2018-04-22 stsp const struct got_error *err = NULL;
500 2178c42e 2018-04-22 stsp struct imsg imsg;
501 2178c42e 2018-04-22 stsp size_t datalen;
502 c4eae628 2018-04-23 stsp const size_t min_datalen =
503 c4eae628 2018-04-23 stsp MIN(sizeof(struct got_imsg_error), sizeof(struct got_imsg_object));
505 2178c42e 2018-04-22 stsp *obj = NULL;
507 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
509 2178c42e 2018-04-22 stsp return err;
511 2178c42e 2018-04-22 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
513 2178c42e 2018-04-22 stsp switch (imsg.hdr.type) {
514 2178c42e 2018-04-22 stsp case GOT_IMSG_ERROR:
515 c4eae628 2018-04-23 stsp err = recv_imsg_error(&imsg, datalen);
517 2178c42e 2018-04-22 stsp case GOT_IMSG_OBJECT:
518 cfd633c2 2018-09-10 stsp err = got_privsep_get_imsg_obj(obj, &imsg, ibuf);
521 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
525 bff6ca00 2018-04-23 stsp imsg_free(&imsg);
527 bff6ca00 2018-04-23 stsp return err;
530 bff6ca00 2018-04-23 stsp const struct got_error *
531 068fd2bf 2018-04-24 stsp got_privsep_send_commit(struct imsgbuf *ibuf, struct got_commit_object *commit)
533 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
534 bff6ca00 2018-04-23 stsp struct got_imsg_commit_object icommit;
535 bff6ca00 2018-04-23 stsp uint8_t *buf;
536 bff6ca00 2018-04-23 stsp size_t len, total;
537 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
539 86acc566 2018-04-23 stsp memcpy(icommit.tree_id, commit->tree_id->sha1, sizeof(icommit.tree_id));
540 bff6ca00 2018-04-23 stsp icommit.author_len = strlen(commit->author);
541 788c352e 2018-06-16 stsp memcpy(&icommit.tm_author, &commit->tm_author,
542 788c352e 2018-06-16 stsp sizeof(icommit.tm_author));
543 bff6ca00 2018-04-23 stsp icommit.committer_len = strlen(commit->committer);
544 788c352e 2018-06-16 stsp memcpy(&icommit.tm_committer, &commit->tm_committer,
545 788c352e 2018-06-16 stsp sizeof(icommit.tm_committer));
546 bff6ca00 2018-04-23 stsp icommit.logmsg_len = strlen(commit->logmsg);
547 bff6ca00 2018-04-23 stsp icommit.nparents = commit->nparents;
549 bff6ca00 2018-04-23 stsp total = sizeof(icommit) + icommit.author_len +
550 788c352e 2018-06-16 stsp icommit.committer_len + icommit.logmsg_len +
551 86acc566 2018-04-23 stsp icommit.nparents * SHA1_DIGEST_LENGTH;
552 bff6ca00 2018-04-23 stsp /* XXX TODO support very large log messages properly */
553 bff6ca00 2018-04-23 stsp if (total > MAX_IMSGSIZE)
554 bff6ca00 2018-04-23 stsp return got_error(GOT_ERR_NO_SPACE);
556 bff6ca00 2018-04-23 stsp buf = malloc(total);
557 bff6ca00 2018-04-23 stsp if (buf == NULL)
558 bff6ca00 2018-04-23 stsp return got_error_from_errno();
561 bff6ca00 2018-04-23 stsp memcpy(buf + len, &icommit, sizeof(icommit));
562 bff6ca00 2018-04-23 stsp len += sizeof(icommit);
563 bff6ca00 2018-04-23 stsp memcpy(buf + len, commit->author, icommit.author_len);
564 bff6ca00 2018-04-23 stsp len += icommit.author_len;
565 bff6ca00 2018-04-23 stsp memcpy(buf + len, commit->committer, icommit.committer_len);
566 bff6ca00 2018-04-23 stsp len += icommit.committer_len;
567 bff6ca00 2018-04-23 stsp memcpy(buf + len, commit->logmsg, icommit.logmsg_len);
568 bff6ca00 2018-04-23 stsp len += icommit.logmsg_len;
569 79f35eb3 2018-06-11 stsp SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
570 79f35eb3 2018-06-11 stsp memcpy(buf + len, qid->id, SHA1_DIGEST_LENGTH);
571 86acc566 2018-04-23 stsp len += SHA1_DIGEST_LENGTH;
574 bff6ca00 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_COMMIT, 0, 0, -1, buf, len) == -1) {
575 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
579 e033d803 2018-04-23 stsp err = flush_imsg(ibuf);
582 bff6ca00 2018-04-23 stsp return err;
585 bff6ca00 2018-04-23 stsp const struct got_error *
586 068fd2bf 2018-04-24 stsp got_privsep_recv_commit(struct got_commit_object **commit, struct imsgbuf *ibuf)
588 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
589 bff6ca00 2018-04-23 stsp struct imsg imsg;
590 bff6ca00 2018-04-23 stsp struct got_imsg_commit_object icommit;
591 bff6ca00 2018-04-23 stsp size_t len, datalen;
593 bff6ca00 2018-04-23 stsp const size_t min_datalen =
594 bff6ca00 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
595 bff6ca00 2018-04-23 stsp sizeof(struct got_imsg_commit_object));
596 bff6ca00 2018-04-23 stsp uint8_t *data;
598 bff6ca00 2018-04-23 stsp *commit = NULL;
600 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, min_datalen);
602 bff6ca00 2018-04-23 stsp return err;
604 bff6ca00 2018-04-23 stsp data = imsg.data;
605 bff6ca00 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
608 bff6ca00 2018-04-23 stsp switch (imsg.hdr.type) {
609 bff6ca00 2018-04-23 stsp case GOT_IMSG_ERROR:
610 bff6ca00 2018-04-23 stsp err = recv_imsg_error(&imsg, datalen);
612 bff6ca00 2018-04-23 stsp case GOT_IMSG_COMMIT:
613 bff6ca00 2018-04-23 stsp if (datalen < sizeof(icommit)) {
614 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
618 bff6ca00 2018-04-23 stsp memcpy(&icommit, data, sizeof(icommit));
619 bff6ca00 2018-04-23 stsp if (datalen != sizeof(icommit) + icommit.author_len +
620 788c352e 2018-06-16 stsp icommit.committer_len + icommit.logmsg_len +
621 86acc566 2018-04-23 stsp icommit.nparents * SHA1_DIGEST_LENGTH) {
622 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
625 bff6ca00 2018-04-23 stsp if (icommit.nparents < 0) {
626 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
629 bff6ca00 2018-04-23 stsp len += sizeof(icommit);
631 bff6ca00 2018-04-23 stsp *commit = got_object_commit_alloc_partial();
632 bff6ca00 2018-04-23 stsp if (*commit == NULL) {
633 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
637 86acc566 2018-04-23 stsp memcpy((*commit)->tree_id->sha1, icommit.tree_id,
638 86acc566 2018-04-23 stsp SHA1_DIGEST_LENGTH);
639 788c352e 2018-06-16 stsp memcpy(&(*commit)->tm_author, &icommit.tm_author,
640 788c352e 2018-06-16 stsp sizeof((*commit)->tm_author));
641 788c352e 2018-06-16 stsp memcpy(&(*commit)->tm_committer, &icommit.tm_committer,
642 788c352e 2018-06-16 stsp sizeof((*commit)->tm_committer));
644 bff6ca00 2018-04-23 stsp if (icommit.author_len == 0) {
645 bff6ca00 2018-04-23 stsp (*commit)->author = strdup("");
646 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
647 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
651 bff6ca00 2018-04-23 stsp (*commit)->author = malloc(icommit.author_len + 1);
652 bff6ca00 2018-04-23 stsp if ((*commit)->author == NULL) {
653 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
656 bff6ca00 2018-04-23 stsp memcpy((*commit)->author, data + len,
657 bff6ca00 2018-04-23 stsp icommit.author_len);
658 bff6ca00 2018-04-23 stsp (*commit)->author[icommit.author_len] = '\0';
660 bff6ca00 2018-04-23 stsp len += icommit.author_len;
662 bff6ca00 2018-04-23 stsp if (icommit.committer_len == 0) {
663 bff6ca00 2018-04-23 stsp (*commit)->committer = strdup("");
664 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
665 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
669 bff6ca00 2018-04-23 stsp (*commit)->committer =
670 bff6ca00 2018-04-23 stsp malloc(icommit.committer_len + 1);
671 bff6ca00 2018-04-23 stsp if ((*commit)->committer == NULL) {
672 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
675 bff6ca00 2018-04-23 stsp memcpy((*commit)->committer, data + len,
676 bff6ca00 2018-04-23 stsp icommit.committer_len);
677 bff6ca00 2018-04-23 stsp (*commit)->committer[icommit.committer_len] = '\0';
679 bff6ca00 2018-04-23 stsp len += icommit.committer_len;
681 bff6ca00 2018-04-23 stsp if (icommit.logmsg_len == 0) {
682 bff6ca00 2018-04-23 stsp (*commit)->logmsg = strdup("");
683 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
684 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
688 bff6ca00 2018-04-23 stsp (*commit)->logmsg = malloc(icommit.logmsg_len + 1);
689 bff6ca00 2018-04-23 stsp if ((*commit)->logmsg == NULL) {
690 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
693 bff6ca00 2018-04-23 stsp memcpy((*commit)->logmsg, data + len,
694 bff6ca00 2018-04-23 stsp icommit.logmsg_len);
695 bff6ca00 2018-04-23 stsp (*commit)->logmsg[icommit.logmsg_len] = '\0';
697 bff6ca00 2018-04-23 stsp len += icommit.logmsg_len;
699 bff6ca00 2018-04-23 stsp for (i = 0; i < icommit.nparents; i++) {
700 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
702 79f35eb3 2018-06-11 stsp qid = calloc(1, sizeof(*qid));
703 79f35eb3 2018-06-11 stsp if (qid == NULL) {
704 86acc566 2018-04-23 stsp err = got_error_from_errno();
707 79f35eb3 2018-06-11 stsp qid->id = calloc(1, sizeof(*qid->id));
708 79f35eb3 2018-06-11 stsp if (qid->id == NULL) {
709 86acc566 2018-04-23 stsp err = got_error_from_errno();
714 79f35eb3 2018-06-11 stsp memcpy(qid->id, data + len + i * SHA1_DIGEST_LENGTH,
715 79f35eb3 2018-06-11 stsp sizeof(*qid->id));
716 79f35eb3 2018-06-11 stsp SIMPLEQ_INSERT_TAIL(&(*commit)->parent_ids, qid, entry);
717 86acc566 2018-04-23 stsp (*commit)->nparents++;
721 8c580685 2018-04-22 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
725 2178c42e 2018-04-22 stsp imsg_free(&imsg);
727 e033d803 2018-04-23 stsp return err;
730 e033d803 2018-04-23 stsp const struct got_error *
731 068fd2bf 2018-04-24 stsp got_privsep_send_tree(struct imsgbuf *ibuf, struct got_tree_object *tree)
733 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
734 e033d803 2018-04-23 stsp struct got_imsg_tree_object itree;
735 e033d803 2018-04-23 stsp struct got_tree_entry *te;
737 883f0469 2018-06-23 stsp itree.nentries = tree->entries.nentries;
738 e033d803 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_TREE, 0, 0, -1, &itree, sizeof(itree))
740 e033d803 2018-04-23 stsp return got_error_from_errno();
742 e033d803 2018-04-23 stsp err = flush_imsg(ibuf);
744 e033d803 2018-04-23 stsp return err;
746 883f0469 2018-06-23 stsp SIMPLEQ_FOREACH(te, &tree->entries.head, entry) {
747 e033d803 2018-04-23 stsp struct got_imsg_tree_entry ite;
748 e033d803 2018-04-23 stsp uint8_t *buf = NULL;
749 e033d803 2018-04-23 stsp size_t len = sizeof(ite) + strlen(te->name);
751 e033d803 2018-04-23 stsp if (len > MAX_IMSGSIZE)
752 e033d803 2018-04-23 stsp return got_error(GOT_ERR_NO_SPACE);
754 e033d803 2018-04-23 stsp buf = malloc(len);
755 e033d803 2018-04-23 stsp if (buf == NULL)
756 e033d803 2018-04-23 stsp return got_error_from_errno();
758 e033d803 2018-04-23 stsp memcpy(ite.id, te->id->sha1, sizeof(ite.id));
759 e033d803 2018-04-23 stsp ite.mode = te->mode;
760 e033d803 2018-04-23 stsp memcpy(buf, &ite, sizeof(ite));
761 e033d803 2018-04-23 stsp memcpy(buf + sizeof(ite), te->name, strlen(te->name));
763 e033d803 2018-04-23 stsp if (imsg_compose(ibuf, GOT_IMSG_TREE_ENTRY, 0, 0, -1,
764 e033d803 2018-04-23 stsp buf, len) == -1)
765 e033d803 2018-04-23 stsp err = got_error_from_errno();
768 e033d803 2018-04-23 stsp return err;
770 e033d803 2018-04-23 stsp err = flush_imsg(ibuf);
772 e033d803 2018-04-23 stsp return err;
775 e033d803 2018-04-23 stsp return NULL;
778 e033d803 2018-04-23 stsp const struct got_error *
779 068fd2bf 2018-04-24 stsp got_privsep_recv_tree(struct got_tree_object **tree, struct imsgbuf *ibuf)
781 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
782 e033d803 2018-04-23 stsp const size_t min_datalen =
783 e033d803 2018-04-23 stsp MIN(sizeof(struct got_imsg_error),
784 e033d803 2018-04-23 stsp sizeof(struct got_imsg_tree_object));
785 e033d803 2018-04-23 stsp struct got_imsg_tree_object itree = { 0 };
786 e033d803 2018-04-23 stsp int nentries = 0;
788 e033d803 2018-04-23 stsp *tree = NULL;
790 e033d803 2018-04-23 stsp err = read_imsg(ibuf);
794 e033d803 2018-04-23 stsp while (1) {
795 e033d803 2018-04-23 stsp struct imsg imsg;
797 e033d803 2018-04-23 stsp size_t datalen;
798 e033d803 2018-04-23 stsp struct got_imsg_tree_entry ite;
799 e033d803 2018-04-23 stsp struct got_tree_entry *te = NULL;
801 e033d803 2018-04-23 stsp n = imsg_get(ibuf, &imsg);
802 e033d803 2018-04-23 stsp if (n == 0) {
803 883f0469 2018-06-23 stsp if (*tree && (*tree)->entries.nentries != nentries)
804 e033d803 2018-04-23 stsp goto get_more;
808 e033d803 2018-04-23 stsp if (imsg.hdr.len < IMSG_HEADER_SIZE + min_datalen)
809 e033d803 2018-04-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
811 e033d803 2018-04-23 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
813 e033d803 2018-04-23 stsp switch (imsg.hdr.type) {
814 e033d803 2018-04-23 stsp case GOT_IMSG_ERROR:
815 e033d803 2018-04-23 stsp err = recv_imsg_error(&imsg, datalen);
817 e033d803 2018-04-23 stsp case GOT_IMSG_TREE:
818 e033d803 2018-04-23 stsp /* This message should only appear once. */
819 e033d803 2018-04-23 stsp if (*tree != NULL) {
820 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
823 e033d803 2018-04-23 stsp if (datalen != sizeof(itree)) {
824 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
827 e033d803 2018-04-23 stsp memcpy(&itree, imsg.data, sizeof(itree));
828 e033d803 2018-04-23 stsp *tree = calloc(1, sizeof(**tree));
829 e033d803 2018-04-23 stsp if (*tree == NULL) {
830 e033d803 2018-04-23 stsp err = got_error_from_errno();
833 883f0469 2018-06-23 stsp (*tree)->entries.nentries = itree.nentries;
834 883f0469 2018-06-23 stsp SIMPLEQ_INIT(&(*tree)->entries.head);
836 e033d803 2018-04-23 stsp case GOT_IMSG_TREE_ENTRY:
837 e033d803 2018-04-23 stsp /* This message should be preceeded by GOT_IMSG_TREE. */
838 e033d803 2018-04-23 stsp if (*tree == NULL) {
839 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
842 e033d803 2018-04-23 stsp if (datalen < sizeof(ite) || datalen > MAX_IMSGSIZE) {
843 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
847 e033d803 2018-04-23 stsp /* Remaining data contains the entry's name. */
848 e033d803 2018-04-23 stsp datalen -= sizeof(ite);
849 e033d803 2018-04-23 stsp memcpy(&ite, imsg.data, sizeof(ite));
850 e033d803 2018-04-23 stsp if (datalen == 0 || datalen > MAX_IMSGSIZE) {
851 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
855 e033d803 2018-04-23 stsp te = got_alloc_tree_entry_partial();
856 e033d803 2018-04-23 stsp if (te == NULL) {
857 e033d803 2018-04-23 stsp err = got_error_from_errno();
860 e033d803 2018-04-23 stsp te->name = malloc(datalen + 1);
861 e033d803 2018-04-23 stsp if (te->name == NULL) {
863 e033d803 2018-04-23 stsp err = got_error_from_errno();
866 052d4dc3 2018-04-23 stsp memcpy(te->name, imsg.data + sizeof(ite), datalen);
867 e033d803 2018-04-23 stsp te->name[datalen] = '\0';
869 e033d803 2018-04-23 stsp memcpy(te->id->sha1, ite.id, SHA1_DIGEST_LENGTH);
870 e033d803 2018-04-23 stsp te->mode = ite.mode;
871 883f0469 2018-06-23 stsp SIMPLEQ_INSERT_TAIL(&(*tree)->entries.head, te, entry);
872 e033d803 2018-04-23 stsp nentries++;
875 e033d803 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
879 e033d803 2018-04-23 stsp imsg_free(&imsg);
882 883f0469 2018-06-23 stsp if (*tree && (*tree)->entries.nentries != nentries) {
883 1e51f5b9 2018-04-23 stsp if (err == NULL)
884 1e51f5b9 2018-04-23 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
885 e033d803 2018-04-23 stsp got_object_tree_close(*tree);
886 e033d803 2018-04-23 stsp *tree = NULL;
889 ff6b18f8 2018-04-24 stsp return err;
892 ff6b18f8 2018-04-24 stsp const struct got_error *
893 2967a784 2018-04-24 stsp got_privsep_send_blob(struct imsgbuf *ibuf, size_t size)
895 2967a784 2018-04-24 stsp struct got_imsg_blob iblob;
897 2967a784 2018-04-24 stsp iblob.size = size;
898 ff6b18f8 2018-04-24 stsp /* Data has already been written to file descriptor. */
900 2967a784 2018-04-24 stsp if (imsg_compose(ibuf, GOT_IMSG_BLOB, 0, 0, -1, &iblob, sizeof(iblob))
902 ff6b18f8 2018-04-24 stsp return got_error_from_errno();
904 ff6b18f8 2018-04-24 stsp return flush_imsg(ibuf);
907 ff6b18f8 2018-04-24 stsp const struct got_error *
908 2967a784 2018-04-24 stsp got_privsep_recv_blob(size_t *size, struct imsgbuf *ibuf)
910 ff6b18f8 2018-04-24 stsp const struct got_error *err = NULL;
911 ff6b18f8 2018-04-24 stsp struct imsg imsg;
912 2967a784 2018-04-24 stsp struct got_imsg_blob iblob;
913 ff6b18f8 2018-04-24 stsp size_t datalen;
915 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, ibuf, 0);
917 ff6b18f8 2018-04-24 stsp return err;
919 ff6b18f8 2018-04-24 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
921 ff6b18f8 2018-04-24 stsp switch (imsg.hdr.type) {
922 ff6b18f8 2018-04-24 stsp case GOT_IMSG_ERROR:
923 ff6b18f8 2018-04-24 stsp err = recv_imsg_error(&imsg, datalen);
925 ff6b18f8 2018-04-24 stsp case GOT_IMSG_BLOB:
926 2967a784 2018-04-24 stsp if (datalen != sizeof(iblob))
927 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
928 2967a784 2018-04-24 stsp memcpy(&iblob, imsg.data, sizeof(iblob));
929 2967a784 2018-04-24 stsp *size = iblob.size;
930 ff6b18f8 2018-04-24 stsp /* Data has been written to file descriptor. */
933 ff6b18f8 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
937 ff6b18f8 2018-04-24 stsp imsg_free(&imsg);
939 2178c42e 2018-04-22 stsp return err;
942 876c234b 2018-09-10 stsp const struct got_error *
943 876c234b 2018-09-10 stsp got_privsep_init_pack_child(struct imsgbuf *ibuf, struct got_pack *pack,
944 876c234b 2018-09-10 stsp struct got_packidx *packidx)
946 876c234b 2018-09-10 stsp struct got_imsg_packidx ipackidx;
947 876c234b 2018-09-10 stsp struct got_imsg_pack ipack;
950 876c234b 2018-09-10 stsp ipackidx.len = packidx->len;
951 876c234b 2018-09-10 stsp fd = dup(packidx->fd);
952 876c234b 2018-09-10 stsp if (fd == -1)
953 876c234b 2018-09-10 stsp return got_error_from_errno();
955 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKIDX, 0, 0, fd, &ipackidx,
956 876c234b 2018-09-10 stsp sizeof(ipackidx)) == -1)
957 876c234b 2018-09-10 stsp return got_error_from_errno();
959 876c234b 2018-09-10 stsp if (strlcpy(ipack.path_packfile, pack->path_packfile,
960 876c234b 2018-09-10 stsp sizeof(ipack.path_packfile)) >= sizeof(ipack.path_packfile))
961 876c234b 2018-09-10 stsp return got_error(GOT_ERR_NO_SPACE);
962 876c234b 2018-09-10 stsp ipack.filesize = pack->filesize;
964 876c234b 2018-09-10 stsp fd = dup(pack->fd);
965 876c234b 2018-09-10 stsp if (fd == -1)
966 876c234b 2018-09-10 stsp return got_error_from_errno();
968 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACK, 0, 0, fd, &ipack, sizeof(ipack))
970 876c234b 2018-09-10 stsp return got_error_from_errno();
972 876c234b 2018-09-10 stsp return flush_imsg(ibuf);
975 876c234b 2018-09-10 stsp const struct got_error *
976 876c234b 2018-09-10 stsp got_privsep_send_packed_obj_req(struct imsgbuf *ibuf, int idx)
978 876c234b 2018-09-10 stsp struct got_imsg_packed_object iobj;
980 876c234b 2018-09-10 stsp iobj.idx = idx;
982 876c234b 2018-09-10 stsp if (imsg_compose(ibuf, GOT_IMSG_PACKED_OBJECT_REQUEST, 0, 0, -1,
983 876c234b 2018-09-10 stsp &iobj, sizeof(iobj)) == -1)
984 876c234b 2018-09-10 stsp return got_error_from_errno();
986 876c234b 2018-09-10 stsp return flush_imsg(ibuf);