2 93658fb9 2020-03-18 stsp * Copyright (c) 2019 Ori Bernstein <ori@openbsd.org>
4 93658fb9 2020-03-18 stsp * Permission to use, copy, modify, and distribute this software for any
5 93658fb9 2020-03-18 stsp * purpose with or without fee is hereby granted, provided that the above
6 93658fb9 2020-03-18 stsp * copyright notice and this permission notice appear in all copies.
8 93658fb9 2020-03-18 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 93658fb9 2020-03-18 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 93658fb9 2020-03-18 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 93658fb9 2020-03-18 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 93658fb9 2020-03-18 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 93658fb9 2020-03-18 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 93658fb9 2020-03-18 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 93658fb9 2020-03-18 stsp #include <sys/types.h>
18 93658fb9 2020-03-18 stsp #include <sys/queue.h>
19 93658fb9 2020-03-18 stsp #include <sys/uio.h>
20 93658fb9 2020-03-18 stsp #include <sys/time.h>
21 93658fb9 2020-03-18 stsp #include <sys/stat.h>
23 93658fb9 2020-03-18 stsp #include <stdint.h>
24 93658fb9 2020-03-18 stsp #include <errno.h>
25 93658fb9 2020-03-18 stsp #include <imsg.h>
26 93658fb9 2020-03-18 stsp #include <limits.h>
27 93658fb9 2020-03-18 stsp #include <signal.h>
28 93658fb9 2020-03-18 stsp #include <stdio.h>
29 93658fb9 2020-03-18 stsp #include <stdlib.h>
30 93658fb9 2020-03-18 stsp #include <string.h>
31 93658fb9 2020-03-18 stsp #include <ctype.h>
32 93658fb9 2020-03-18 stsp #include <sha1.h>
33 93658fb9 2020-03-18 stsp #include <fcntl.h>
34 81a12da5 2020-09-09 naddy #include <unistd.h>
35 93658fb9 2020-03-18 stsp #include <zlib.h>
36 93658fb9 2020-03-18 stsp #include <err.h>
38 93658fb9 2020-03-18 stsp #include "got_error.h"
39 93658fb9 2020-03-18 stsp #include "got_object.h"
40 abe0f35f 2020-03-18 stsp #include "got_path.h"
41 8a29a085 2020-03-18 stsp #include "got_version.h"
42 f1c6967f 2020-03-19 stsp #include "got_fetch.h"
43 659e7fbd 2020-03-20 stsp #include "got_reference.h"
45 93658fb9 2020-03-18 stsp #include "got_lib_sha1.h"
46 93658fb9 2020-03-18 stsp #include "got_lib_delta.h"
47 93658fb9 2020-03-18 stsp #include "got_lib_object.h"
48 93658fb9 2020-03-18 stsp #include "got_lib_object_parse.h"
49 93658fb9 2020-03-18 stsp #include "got_lib_privsep.h"
50 0872c0b0 2020-03-18 stsp #include "got_lib_pack.h"
51 f024663d 2021-09-05 stsp #include "got_lib_pkt.h"
52 bd3d9e54 2021-09-05 stsp #include "got_lib_gitproto.h"
53 dcb64fea 2022-02-23 stsp #include "got_lib_ratelimit.h"
56 74737945 2022-10-30 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
59 8a29a085 2020-03-18 stsp #ifndef nitems
60 8a29a085 2020-03-18 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
63 93658fb9 2020-03-18 stsp struct got_object *indexed;
64 858b0dfb 2020-03-20 stsp static int chattygot;
66 bd3d9e54 2021-09-05 stsp static const struct got_capability got_capabilities[] = {
67 bd3d9e54 2021-09-05 stsp { GOT_CAPA_AGENT, "got/" GOT_VERSION_STR },
68 bd3d9e54 2021-09-05 stsp { GOT_CAPA_OFS_DELTA, NULL },
69 bd3d9e54 2021-09-05 stsp { GOT_CAPA_SIDE_BAND_64K, NULL },
73 7848a0e1 2020-03-19 stsp match_remote_ref(struct got_pathlist_head *have_refs,
74 7848a0e1 2020-03-19 stsp struct got_object_id *my_id, char *refname)
76 33501562 2020-03-18 stsp struct got_pathlist_entry *pe;
78 7848a0e1 2020-03-19 stsp /* XXX zero-hash signifies we don't have this ref;
79 7848a0e1 2020-03-19 stsp * we should use a flag instead */
80 7848a0e1 2020-03-19 stsp memset(my_id, 0, sizeof(*my_id));
82 33501562 2020-03-18 stsp TAILQ_FOREACH(pe, have_refs, entry) {
83 7848a0e1 2020-03-19 stsp struct got_object_id *id = pe->data;
84 5e91dae4 2022-08-30 stsp if (strcmp(pe->path, refname) == 0) {
85 7848a0e1 2020-03-19 stsp memcpy(my_id, id, sizeof(*my_id));
92 659e7fbd 2020-03-20 stsp match_branch(const char *branch, const char *wanted_branch)
94 659e7fbd 2020-03-20 stsp if (strncmp(branch, "refs/heads/", 11) != 0)
97 659e7fbd 2020-03-20 stsp if (strncmp(wanted_branch, "refs/heads/", 11) == 0)
98 659e7fbd 2020-03-20 stsp wanted_branch += 11;
100 659e7fbd 2020-03-20 stsp return (strcmp(branch + 11, wanted_branch) == 0);
104 0e4002ca 2020-03-21 stsp match_wanted_ref(const char *refname, const char *wanted_ref)
106 0e4002ca 2020-03-21 stsp if (strncmp(refname, "refs/", 5) != 0)
108 0e4002ca 2020-03-21 stsp refname += 5;
111 0e4002ca 2020-03-21 stsp * Prevent fetching of references that won't make any
112 0e4002ca 2020-03-21 stsp * sense outside of the remote repository's context.
114 0e4002ca 2020-03-21 stsp if (strncmp(refname, "got/", 4) == 0)
116 0e4002ca 2020-03-21 stsp if (strncmp(refname, "remotes/", 8) == 0)
119 0e4002ca 2020-03-21 stsp if (strncmp(wanted_ref, "refs/", 5) == 0)
120 0e4002ca 2020-03-21 stsp wanted_ref += 5;
122 0e4002ca 2020-03-21 stsp /* Allow prefix match. */
123 0e4002ca 2020-03-21 stsp if (got_path_is_child(refname, wanted_ref, strlen(wanted_ref)))
126 0e4002ca 2020-03-21 stsp /* Allow exact match. */
127 0e4002ca 2020-03-21 stsp return (strcmp(refname, wanted_ref) == 0);
130 abe0f35f 2020-03-18 stsp static const struct got_error *
131 e70bf110 2020-03-22 stsp send_fetch_server_progress(struct imsgbuf *ibuf, const char *msg, size_t msglen)
133 e70bf110 2020-03-22 stsp if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
134 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
136 e70bf110 2020-03-22 stsp if (msglen == 0)
137 e70bf110 2020-03-22 stsp return NULL;
139 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_SERVER_PROGRESS, 0, 0, -1,
140 e70bf110 2020-03-22 stsp msg, msglen) == -1)
141 e70bf110 2020-03-22 stsp return got_error_from_errno(
142 e70bf110 2020-03-22 stsp "imsg_compose FETCH_SERVER_PROGRESS");
144 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
147 531c3985 2020-03-18 stsp static const struct got_error *
148 dcb64fea 2022-02-23 stsp send_fetch_download_progress(struct imsgbuf *ibuf, off_t bytes,
149 dcb64fea 2022-02-23 stsp struct got_ratelimit *rl)
151 dcb64fea 2022-02-23 stsp const struct got_error *err;
152 dcb64fea 2022-02-23 stsp int elapsed = 0;
155 dcb64fea 2022-02-23 stsp err = got_ratelimit_check(&elapsed, rl);
156 dcb64fea 2022-02-23 stsp if (err || !elapsed)
157 dcb64fea 2022-02-23 stsp return err;
160 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DOWNLOAD_PROGRESS, 0, 0, -1,
161 e70bf110 2020-03-22 stsp &bytes, sizeof(bytes)) == -1)
162 e70bf110 2020-03-22 stsp return got_error_from_errno(
163 e70bf110 2020-03-22 stsp "imsg_compose FETCH_DOWNLOAD_PROGRESS");
165 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
168 e70bf110 2020-03-22 stsp static const struct got_error *
169 1d72a2a0 2020-03-24 stsp send_fetch_done(struct imsgbuf *ibuf, uint8_t *pack_sha1)
171 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DONE, 0, 0, -1,
172 1d72a2a0 2020-03-24 stsp pack_sha1, SHA1_DIGEST_LENGTH) == -1)
173 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_compose FETCH");
174 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
177 e70bf110 2020-03-22 stsp static const struct got_error *
178 531c3985 2020-03-18 stsp fetch_progress(struct imsgbuf *ibuf, const char *buf, size_t len)
182 531c3985 2020-03-18 stsp if (len == 0)
183 531c3985 2020-03-18 stsp return NULL;
186 531c3985 2020-03-18 stsp * Truncate messages which exceed the maximum imsg payload size.
187 531c3985 2020-03-18 stsp * Server may send up to 64k.
189 531c3985 2020-03-18 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
190 531c3985 2020-03-18 stsp len = MAX_IMSGSIZE - IMSG_HEADER_SIZE;
192 531c3985 2020-03-18 stsp /* Only allow printable ASCII. */
193 531c3985 2020-03-18 stsp for (i = 0; i < len; i++) {
194 531c3985 2020-03-18 stsp if (isprint((unsigned char)buf[i]) ||
195 531c3985 2020-03-18 stsp isspace((unsigned char)buf[i]))
197 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
198 531c3985 2020-03-18 stsp "non-printable progress message received from server");
201 e70bf110 2020-03-22 stsp return send_fetch_server_progress(ibuf, buf, len);
204 8a29a085 2020-03-18 stsp static const struct got_error *
205 531c3985 2020-03-18 stsp fetch_error(const char *buf, size_t len)
207 531c3985 2020-03-18 stsp static char msg[1024];
210 531c3985 2020-03-18 stsp for (i = 0; i < len && i < sizeof(msg) - 1; i++) {
211 99fd9ff4 2022-11-17 op if (!isprint((unsigned char)buf[i]))
212 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
213 531c3985 2020-03-18 stsp "non-printable error message received from server");
214 531c3985 2020-03-18 stsp msg[i] = buf[i];
216 531c3985 2020-03-18 stsp msg[i] = '\0';
217 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_FETCH_FAILED, msg);
220 531c3985 2020-03-18 stsp static const struct got_error *
221 e70bf110 2020-03-22 stsp send_fetch_symrefs(struct imsgbuf *ibuf, struct got_pathlist_head *symrefs)
223 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
224 e70bf110 2020-03-22 stsp size_t len, nsymrefs = 0;
225 e70bf110 2020-03-22 stsp struct got_pathlist_entry *pe;
227 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_symrefs);
228 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
229 e70bf110 2020-03-22 stsp const char *target = pe->data;
230 e70bf110 2020-03-22 stsp len += sizeof(struct got_imsg_fetch_symref) +
231 e70bf110 2020-03-22 stsp pe->path_len + strlen(target);
232 e70bf110 2020-03-22 stsp nsymrefs++;
235 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
236 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
238 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_SYMREFS, 0, 0, len);
239 e70bf110 2020-03-22 stsp if (wbuf == NULL)
240 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_SYMREFS");
242 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symrefs definition! */
243 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &nsymrefs, sizeof(nsymrefs)) == -1)
244 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
246 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
247 e70bf110 2020-03-22 stsp const char *name = pe->path;
248 e70bf110 2020-03-22 stsp size_t name_len = pe->path_len;
249 e70bf110 2020-03-22 stsp const char *target = pe->data;
250 e70bf110 2020-03-22 stsp size_t target_len = strlen(target);
252 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symref definition! */
253 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
254 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
255 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &target_len, sizeof(target_len)) == -1)
256 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
257 1453347d 2022-05-19 stsp if (imsg_add(wbuf, name, name_len) == -1)
258 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
259 1453347d 2022-05-19 stsp if (imsg_add(wbuf, target, target_len) == -1)
260 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
263 e70bf110 2020-03-22 stsp wbuf->fd = -1;
264 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
265 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
268 e70bf110 2020-03-22 stsp static const struct got_error *
269 e70bf110 2020-03-22 stsp send_fetch_ref(struct imsgbuf *ibuf, struct got_object_id *refid,
270 e70bf110 2020-03-22 stsp const char *refname)
272 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
273 e70bf110 2020-03-22 stsp size_t len, reflen = strlen(refname);
275 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_ref) + reflen;
276 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
277 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
279 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REF, 0, 0, len);
280 e70bf110 2020-03-22 stsp if (wbuf == NULL)
281 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_REF");
283 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_ref definition! */
284 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refid->sha1, SHA1_DIGEST_LENGTH) == -1)
285 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_REF");
286 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refname, reflen) == -1)
287 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_REF");
289 e70bf110 2020-03-22 stsp wbuf->fd = -1;
290 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
291 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
294 e70bf110 2020-03-22 stsp static const struct got_error *
295 1d72a2a0 2020-03-24 stsp fetch_pack(int fd, int packfd, uint8_t *pack_sha1,
296 659e7fbd 2020-03-20 stsp struct got_pathlist_head *have_refs, int fetch_all_branches,
297 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_branches,
298 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_refs, int list_refs_only,
299 41b0de12 2020-03-21 stsp struct imsgbuf *ibuf)
301 9ff10419 2020-03-18 stsp const struct got_error *err = NULL;
302 77d7d3bb 2021-09-05 stsp char buf[GOT_PKT_MAX];
303 93658fb9 2020-03-18 stsp char hashstr[SHA1_DIGEST_STRING_LENGTH];
304 93658fb9 2020-03-18 stsp struct got_object_id *have, *want;
305 8a29a085 2020-03-18 stsp int is_firstpkt = 1, nref = 0, refsz = 16;
306 7848a0e1 2020-03-19 stsp int i, n, nwant = 0, nhave = 0, acked = 0;
307 5672d305 2020-03-18 stsp off_t packsz = 0, last_reported_packsz = 0;
308 00cd0e0a 2020-03-18 stsp char *id_str = NULL, *refname = NULL;
309 00cd0e0a 2020-03-18 stsp char *server_capabilities = NULL, *my_capabilities = NULL;
310 659e7fbd 2020-03-20 stsp const char *default_branch = NULL;
311 abe0f35f 2020-03-18 stsp struct got_pathlist_head symrefs;
312 abe0f35f 2020-03-18 stsp struct got_pathlist_entry *pe;
313 406106ee 2020-03-20 stsp int sent_my_capabilites = 0, have_sidebands = 0;
314 659e7fbd 2020-03-20 stsp int found_branch = 0;
315 dc671e91 2020-03-24 stsp SHA1_CTX sha1_ctx;
316 dc671e91 2020-03-24 stsp uint8_t sha1_buf[SHA1_DIGEST_LENGTH];
317 dc671e91 2020-03-24 stsp size_t sha1_buf_len = 0;
319 dcb64fea 2022-02-23 stsp struct got_ratelimit rl;
321 abe0f35f 2020-03-18 stsp TAILQ_INIT(&symrefs);
322 dc671e91 2020-03-24 stsp SHA1Init(&sha1_ctx);
323 dcb64fea 2022-02-23 stsp got_ratelimit_init(&rl, 0, 500);
325 93658fb9 2020-03-18 stsp have = malloc(refsz * sizeof(have[0]));
326 9ff10419 2020-03-18 stsp if (have == NULL)
327 9ff10419 2020-03-18 stsp return got_error_from_errno("malloc");
328 93658fb9 2020-03-18 stsp want = malloc(refsz * sizeof(want[0]));
329 9ff10419 2020-03-18 stsp if (want == NULL) {
330 9ff10419 2020-03-18 stsp err = got_error_from_errno("malloc");
333 9ff10419 2020-03-18 stsp while (1) {
334 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
337 9ff10419 2020-03-18 stsp if (n == 0)
339 a6f88e33 2020-03-18 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
340 531c3985 2020-03-18 stsp err = fetch_error(&buf[4], n - 4);
343 e99d9267 2021-10-07 stsp free(id_str);
344 e99d9267 2021-10-07 stsp free(refname);
345 bd3d9e54 2021-09-05 stsp err = got_gitproto_parse_refline(&id_str, &refname,
346 bd3d9e54 2021-09-05 stsp &server_capabilities, buf, n);
349 8a29a085 2020-03-18 stsp if (is_firstpkt) {
350 858b0dfb 2020-03-20 stsp if (chattygot && server_capabilities[0] != '\0')
351 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: server capabilities: %s\n",
352 858b0dfb 2020-03-20 stsp getprogname(), server_capabilities);
353 bd3d9e54 2021-09-05 stsp err = got_gitproto_match_capabilities(&my_capabilities,
354 bd3d9e54 2021-09-05 stsp &symrefs, server_capabilities,
355 bd3d9e54 2021-09-05 stsp got_capabilities, nitems(got_capabilities));
358 858b0dfb 2020-03-20 stsp if (chattygot)
359 2690194b 2020-03-21 stsp fprintf(stderr, "%s: my capabilities:%s\n",
360 a90356f7 2021-08-26 stsp getprogname(), my_capabilities != NULL ?
361 a90356f7 2021-08-26 stsp my_capabilities : "");
362 e70bf110 2020-03-22 stsp err = send_fetch_symrefs(ibuf, &symrefs);
365 7848a0e1 2020-03-19 stsp is_firstpkt = 0;
366 659e7fbd 2020-03-20 stsp if (!fetch_all_branches) {
367 659e7fbd 2020-03-20 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
368 659e7fbd 2020-03-20 stsp const char *name = pe->path;
369 659e7fbd 2020-03-20 stsp const char *symref_target = pe->data;
370 659e7fbd 2020-03-20 stsp if (strcmp(name, GOT_REF_HEAD) != 0)
372 659e7fbd 2020-03-20 stsp default_branch = symref_target;
376 c9f1ac46 2022-11-08 stsp if (default_branch)
379 2690194b 2020-03-21 stsp if (strstr(refname, "^{}")) {
380 2690194b 2020-03-21 stsp if (chattygot) {
381 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
382 2690194b 2020-03-21 stsp getprogname(), refname);
387 659e7fbd 2020-03-20 stsp if (strncmp(refname, "refs/heads/", 11) == 0) {
388 41b0de12 2020-03-21 stsp if (fetch_all_branches || list_refs_only) {
389 4ba14133 2020-03-20 stsp found_branch = 1;
390 4ba14133 2020-03-20 stsp } else if (!TAILQ_EMPTY(wanted_branches)) {
391 4ba14133 2020-03-20 stsp TAILQ_FOREACH(pe, wanted_branches, entry) {
392 4ba14133 2020-03-20 stsp if (match_branch(refname, pe->path))
395 2690194b 2020-03-21 stsp if (pe == NULL) {
396 2690194b 2020-03-21 stsp if (chattygot) {
397 2690194b 2020-03-21 stsp fprintf(stderr,
398 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
399 2690194b 2020-03-21 stsp getprogname(), refname);
403 4ba14133 2020-03-20 stsp found_branch = 1;
404 4ba14133 2020-03-20 stsp } else if (default_branch != NULL) {
405 2690194b 2020-03-21 stsp if (!match_branch(refname, default_branch)) {
406 2690194b 2020-03-21 stsp if (chattygot) {
407 2690194b 2020-03-21 stsp fprintf(stderr,
408 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
409 2690194b 2020-03-21 stsp getprogname(), refname);
413 4ba14133 2020-03-20 stsp found_branch = 1;
415 659e7fbd 2020-03-20 stsp } else if (strncmp(refname, "refs/tags/", 10) != 0) {
416 0e4002ca 2020-03-21 stsp if (!TAILQ_EMPTY(wanted_refs)) {
417 0e4002ca 2020-03-21 stsp TAILQ_FOREACH(pe, wanted_refs, entry) {
418 0e4002ca 2020-03-21 stsp if (match_wanted_ref(refname, pe->path))
421 0e4002ca 2020-03-21 stsp if (pe == NULL) {
422 0e4002ca 2020-03-21 stsp if (chattygot) {
423 0e4002ca 2020-03-21 stsp fprintf(stderr,
424 0e4002ca 2020-03-21 stsp "%s: ignoring %s\n",
425 0e4002ca 2020-03-21 stsp getprogname(), refname);
429 0e4002ca 2020-03-21 stsp found_branch = 1;
430 0e4002ca 2020-03-21 stsp } else if (!list_refs_only) {
431 2690194b 2020-03-21 stsp if (chattygot) {
432 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
433 2690194b 2020-03-21 stsp getprogname(), refname);
439 cf875574 2020-03-18 stsp if (refsz == nref + 1) {
440 93658fb9 2020-03-18 stsp refsz *= 2;
441 14778466 2020-03-18 stsp have = reallocarray(have, refsz, sizeof(have[0]));
442 9ff10419 2020-03-18 stsp if (have == NULL) {
443 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
446 14778466 2020-03-18 stsp want = reallocarray(want, refsz, sizeof(want[0]));
447 9ff10419 2020-03-18 stsp if (want == NULL) {
448 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
452 00cd0e0a 2020-03-18 stsp if (!got_parse_sha1_digest(want[nref].sha1, id_str)) {
453 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_BAD_OBJ_ID_STR);
456 7848a0e1 2020-03-19 stsp match_remote_ref(have_refs, &have[nref], refname);
457 e70bf110 2020-03-22 stsp err = send_fetch_ref(ibuf, &want[nref], refname);
461 2690194b 2020-03-21 stsp if (chattygot)
462 2690194b 2020-03-21 stsp fprintf(stderr, "%s: %s will be fetched\n",
463 2690194b 2020-03-21 stsp getprogname(), refname);
464 2690194b 2020-03-21 stsp if (chattygot > 1) {
465 858b0dfb 2020-03-20 stsp char *theirs, *mine;
466 858b0dfb 2020-03-20 stsp err = got_object_id_str(&theirs, &want[nref]);
469 858b0dfb 2020-03-20 stsp err = got_object_id_str(&mine, &have[nref]);
471 858b0dfb 2020-03-20 stsp free(theirs);
474 2690194b 2020-03-21 stsp fprintf(stderr, "%s: remote: %s\n%s: local: %s\n",
475 659e7fbd 2020-03-20 stsp getprogname(), theirs, getprogname(), mine);
476 858b0dfb 2020-03-20 stsp free(theirs);
477 858b0dfb 2020-03-20 stsp free(mine);
482 41b0de12 2020-03-21 stsp if (list_refs_only)
485 659e7fbd 2020-03-20 stsp /* Abort if we haven't found any branch to fetch. */
486 659e7fbd 2020-03-20 stsp if (!found_branch) {
487 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_FETCH_NO_BRANCH);
491 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
492 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &want[i]) == 0)
494 93658fb9 2020-03-18 stsp got_sha1_digest_to_str(want[i].sha1, hashstr, sizeof(hashstr));
495 406106ee 2020-03-20 stsp n = snprintf(buf, sizeof(buf), "want %s%s\n", hashstr,
496 a90356f7 2021-08-26 stsp sent_my_capabilites || my_capabilities == NULL ?
497 a90356f7 2021-08-26 stsp "" : my_capabilities);
498 438d0cc3 2022-08-16 op if (n < 0 || (size_t)n >= sizeof(buf)) {
499 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
502 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
505 858b0dfb 2020-03-20 stsp sent_my_capabilites = 1;
508 f024663d 2021-09-05 stsp err = got_pkt_flushpkt(fd, chattygot);
512 3c912d14 2020-03-19 stsp if (nwant == 0)
515 dd088d95 2021-10-06 stsp TAILQ_FOREACH(pe, have_refs, entry) {
516 dd088d95 2021-10-06 stsp struct got_object_id *id = pe->data;
517 dd088d95 2021-10-06 stsp got_sha1_digest_to_str(id->sha1, hashstr, sizeof(hashstr));
518 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "have %s\n", hashstr);
519 438d0cc3 2022-08-16 op if (n < 0 || (size_t)n >= sizeof(buf)) {
520 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
523 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
529 7848a0e1 2020-03-19 stsp while (nhave > 0 && !acked) {
530 7848a0e1 2020-03-19 stsp struct got_object_id common_id;
532 7848a0e1 2020-03-19 stsp /* The server should ACK the object IDs we need. */
533 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
536 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
537 7848a0e1 2020-03-19 stsp err = fetch_error(&buf[4], n - 4);
540 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "NAK\n", 4) == 0) {
541 7848a0e1 2020-03-19 stsp /* Server has not located our objects yet. */
544 7848a0e1 2020-03-19 stsp if (n < 4 + SHA1_DIGEST_STRING_LENGTH ||
545 7848a0e1 2020-03-19 stsp strncmp(buf, "ACK ", 4) != 0) {
546 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
547 7848a0e1 2020-03-19 stsp "unexpected message from server");
550 7848a0e1 2020-03-19 stsp if (!got_parse_sha1_digest(common_id.sha1, buf + 4)) {
551 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
552 7848a0e1 2020-03-19 stsp "bad object ID in ACK packet from server");
558 ea8d9c76 2022-08-16 op n = strlcpy(buf, "done\n", sizeof(buf));
559 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
563 7848a0e1 2020-03-19 stsp if (nhave == 0) {
564 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
567 7848a0e1 2020-03-19 stsp if (n != 4 || strncmp(buf, "NAK\n", n) != 0) {
568 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
569 7848a0e1 2020-03-19 stsp "unexpected message from server");
574 858b0dfb 2020-03-20 stsp if (chattygot)
575 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: fetching...\n", getprogname());
577 531c3985 2020-03-18 stsp if (my_capabilities != NULL &&
578 531c3985 2020-03-18 stsp strstr(my_capabilities, GOT_CAPA_SIDE_BAND_64K) != NULL)
579 531c3985 2020-03-18 stsp have_sidebands = 1;
581 9ff10419 2020-03-18 stsp while (1) {
582 dc671e91 2020-03-24 stsp ssize_t r = 0;
583 531c3985 2020-03-18 stsp int datalen = -1;
585 531c3985 2020-03-18 stsp if (have_sidebands) {
586 f024663d 2021-09-05 stsp err = got_pkt_readhdr(&datalen, fd, chattygot);
589 531c3985 2020-03-18 stsp if (datalen <= 0)
592 531c3985 2020-03-18 stsp /* Read sideband channel ID (one byte). */
593 531c3985 2020-03-18 stsp r = read(fd, buf, 1);
594 531c3985 2020-03-18 stsp if (r == -1) {
595 531c3985 2020-03-18 stsp err = got_error_from_errno("read");
598 531c3985 2020-03-18 stsp if (r != 1) {
599 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
600 531c3985 2020-03-18 stsp "short packet");
603 531c3985 2020-03-18 stsp if (datalen > sizeof(buf) - 5) {
604 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
605 531c3985 2020-03-18 stsp "bad packet length");
608 531c3985 2020-03-18 stsp datalen--; /* sideband ID has been read */
609 531c3985 2020-03-18 stsp if (buf[0] == GOT_SIDEBAND_PACKFILE_DATA) {
610 531c3985 2020-03-18 stsp /* Read packfile data. */
611 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
614 531c3985 2020-03-18 stsp if (r != datalen) {
615 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
616 531c3985 2020-03-18 stsp "packet too short");
619 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_PROGRESS_INFO) {
620 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
623 531c3985 2020-03-18 stsp if (r != datalen) {
624 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
625 531c3985 2020-03-18 stsp "packet too short");
628 531c3985 2020-03-18 stsp err = fetch_progress(ibuf, buf, r);
632 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_ERROR_INFO) {
633 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
636 531c3985 2020-03-18 stsp if (r != datalen) {
637 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
638 531c3985 2020-03-18 stsp "packet too short");
641 531c3985 2020-03-18 stsp err = fetch_error(buf, r);
643 98f64f14 2021-01-05 stsp } else if (buf[0] == 'A') {
644 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
647 98f64f14 2021-01-05 stsp if (r != datalen) {
648 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
649 98f64f14 2021-01-05 stsp "packet too short");
653 98f64f14 2021-01-05 stsp * Git server responds with ACK after 'done'
654 98f64f14 2021-01-05 stsp * even though multi_ack is disabled?!?
656 98f64f14 2021-01-05 stsp buf[r] = '\0';
657 98f64f14 2021-01-05 stsp if (strncmp(buf, "CK ", 3) == 0)
658 98f64f14 2021-01-05 stsp continue; /* ignore */
659 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
660 98f64f14 2021-01-05 stsp "unexpected message from server");
663 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
664 531c3985 2020-03-18 stsp "unknown side-band received from server");
668 531c3985 2020-03-18 stsp /* No sideband channel. Every byte is packfile data. */
669 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, sizeof buf);
672 531c3985 2020-03-18 stsp if (r <= 0)
677 dc671e91 2020-03-24 stsp * An expected SHA1 checksum sits at the end of the pack file.
678 dc671e91 2020-03-24 stsp * Since we don't know the file size ahead of time we have to
679 dc671e91 2020-03-24 stsp * keep SHA1_DIGEST_LENGTH bytes buffered and avoid mixing
680 dc671e91 2020-03-24 stsp * those bytes into our SHA1 checksum computation until we
681 dc671e91 2020-03-24 stsp * know for sure that additional pack file data bytes follow.
683 dc671e91 2020-03-24 stsp * We can assume r > 0 since otherwise the loop would exit.
685 dc671e91 2020-03-24 stsp if (r < SHA1_DIGEST_LENGTH) {
686 dc671e91 2020-03-24 stsp if (sha1_buf_len < SHA1_DIGEST_LENGTH) {
688 dc671e91 2020-03-24 stsp * If there's enough buffered + read data to
689 dc671e91 2020-03-24 stsp * fill up the buffer then shift a sufficient
690 dc671e91 2020-03-24 stsp * amount of bytes out at the front to make
691 dc671e91 2020-03-24 stsp * room, mixing those bytes into the checksum.
693 74737945 2022-10-30 stsp if (sha1_buf_len > 0 &&
694 dc671e91 2020-03-24 stsp sha1_buf_len + r > SHA1_DIGEST_LENGTH) {
695 74737945 2022-10-30 stsp size_t nshift = MIN(sha1_buf_len + r -
696 74737945 2022-10-30 stsp SHA1_DIGEST_LENGTH, sha1_buf_len);
697 74737945 2022-10-30 stsp SHA1Update(&sha1_ctx, sha1_buf, nshift);
698 74737945 2022-10-30 stsp memmove(sha1_buf, sha1_buf + nshift,
699 74737945 2022-10-30 stsp sha1_buf_len - nshift);
700 74737945 2022-10-30 stsp sha1_buf_len -= nshift;
703 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
704 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len, buf, r);
705 dc671e91 2020-03-24 stsp sha1_buf_len += r;
708 dc671e91 2020-03-24 stsp * Mix in previously buffered bytes which
709 dc671e91 2020-03-24 stsp * are not part of the checksum after all.
711 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, r);
713 dc671e91 2020-03-24 stsp /* Update potential checksum buffer. */
714 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + r,
715 dc671e91 2020-03-24 stsp sha1_buf_len - r);
716 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len - r, buf, r);
719 dc671e91 2020-03-24 stsp /* Mix in any previously buffered bytes. */
720 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, sha1_buf_len);
722 dc671e91 2020-03-24 stsp /* Mix in bytes read minus potential checksum bytes. */
723 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, buf, r - SHA1_DIGEST_LENGTH);
725 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
726 dc671e91 2020-03-24 stsp memcpy(sha1_buf, buf + r - SHA1_DIGEST_LENGTH,
727 dc671e91 2020-03-24 stsp SHA1_DIGEST_LENGTH);
728 dc671e91 2020-03-24 stsp sha1_buf_len = SHA1_DIGEST_LENGTH;
731 531c3985 2020-03-18 stsp /* Write packfile data to temporary pack file. */
732 fe53745c 2020-03-18 stsp w = write(packfd, buf, r);
733 9ff10419 2020-03-18 stsp if (w == -1) {
734 9ff10419 2020-03-18 stsp err = got_error_from_errno("write");
737 fe53745c 2020-03-18 stsp if (w != r) {
738 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_IO);
741 531c3985 2020-03-18 stsp packsz += w;
743 5672d305 2020-03-18 stsp /* Don't send too many progress privsep messages. */
744 5672d305 2020-03-18 stsp if (packsz > last_reported_packsz + 1024) {
745 dcb64fea 2022-02-23 stsp err = send_fetch_download_progress(ibuf, packsz, &rl);
748 5672d305 2020-03-18 stsp last_reported_packsz = packsz;
751 dcb64fea 2022-02-23 stsp err = send_fetch_download_progress(ibuf, packsz, NULL);
755 dc671e91 2020-03-24 stsp SHA1Final(pack_sha1, &sha1_ctx);
756 dc671e91 2020-03-24 stsp if (sha1_buf_len != SHA1_DIGEST_LENGTH ||
757 dc671e91 2020-03-24 stsp memcmp(pack_sha1, sha1_buf, sha1_buf_len) != 0) {
758 dc671e91 2020-03-24 stsp err = got_error_msg(GOT_ERR_BAD_PACKFILE,
759 dc671e91 2020-03-24 stsp "pack file checksum mismatch");
762 d8bacb93 2023-01-10 mark got_pathlist_free(&symrefs, GOT_PATHLIST_FREE_ALL);
763 9ff10419 2020-03-18 stsp free(have);
764 9ff10419 2020-03-18 stsp free(want);
765 00cd0e0a 2020-03-18 stsp free(id_str);
766 00cd0e0a 2020-03-18 stsp free(refname);
767 00cd0e0a 2020-03-18 stsp free(server_capabilities);
768 8f2d01a6 2020-03-18 stsp return err;
773 93658fb9 2020-03-18 stsp main(int argc, char **argv)
775 93658fb9 2020-03-18 stsp const struct got_error *err = NULL;
776 9114dd43 2023-01-10 mark int fetchfd = -1, packfd = -1;
777 1d72a2a0 2020-03-24 stsp uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
778 93658fb9 2020-03-18 stsp struct imsgbuf ibuf;
779 93658fb9 2020-03-18 stsp struct imsg imsg;
780 33501562 2020-03-18 stsp struct got_pathlist_head have_refs;
781 4ba14133 2020-03-20 stsp struct got_pathlist_head wanted_branches;
782 0e4002ca 2020-03-21 stsp struct got_pathlist_head wanted_refs;
783 4ba14133 2020-03-20 stsp struct got_imsg_fetch_request fetch_req;
784 659e7fbd 2020-03-20 stsp struct got_imsg_fetch_have_ref href;
785 4ba14133 2020-03-20 stsp struct got_imsg_fetch_wanted_branch wbranch;
786 0e4002ca 2020-03-21 stsp struct got_imsg_fetch_wanted_ref wref;
787 030daac8 2021-09-25 stsp size_t datalen, i;
789 7848a0e1 2020-03-19 stsp static int attached;
790 7848a0e1 2020-03-19 stsp while (!attached)
794 33501562 2020-03-18 stsp TAILQ_INIT(&have_refs);
795 4ba14133 2020-03-20 stsp TAILQ_INIT(&wanted_branches);
796 0e4002ca 2020-03-21 stsp TAILQ_INIT(&wanted_refs);
798 93658fb9 2020-03-18 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
799 ffb5f621 2020-03-18 stsp #ifndef PROFILE
800 ffb5f621 2020-03-18 stsp /* revoke access to most system calls */
801 ffb5f621 2020-03-18 stsp if (pledge("stdio recvfd", NULL) == -1) {
802 ffb5f621 2020-03-18 stsp err = got_error_from_errno("pledge");
803 ffb5f621 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
807 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
809 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
810 93658fb9 2020-03-18 stsp err = NULL;
813 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
815 93658fb9 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_REQUEST) {
816 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
819 33501562 2020-03-18 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
820 4ba14133 2020-03-20 stsp if (datalen < sizeof(fetch_req)) {
821 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
824 4ba14133 2020-03-20 stsp memcpy(&fetch_req, imsg.data, sizeof(fetch_req));
825 4ba14133 2020-03-20 stsp fetchfd = imsg.fd;
826 4ba14133 2020-03-20 stsp imsg_free(&imsg);
828 2690194b 2020-03-21 stsp if (fetch_req.verbosity > 0)
829 2690194b 2020-03-21 stsp chattygot += fetch_req.verbosity;
831 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_have_refs; i++) {
832 7848a0e1 2020-03-19 stsp struct got_object_id *id;
833 7848a0e1 2020-03-19 stsp char *refname;
835 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
837 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
838 4ba14133 2020-03-20 stsp err = NULL;
841 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
843 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_HAVE_REF) {
844 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
847 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
848 4ba14133 2020-03-20 stsp if (datalen < sizeof(href)) {
849 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
852 4ba14133 2020-03-20 stsp memcpy(&href, imsg.data, sizeof(href));
853 4ba14133 2020-03-20 stsp if (datalen - sizeof(href) < href.name_len) {
854 7848a0e1 2020-03-19 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
857 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(href), href.name_len);
858 7848a0e1 2020-03-19 stsp if (refname == NULL) {
859 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
863 7848a0e1 2020-03-19 stsp id = malloc(sizeof(*id));
864 7848a0e1 2020-03-19 stsp if (id == NULL) {
865 7848a0e1 2020-03-19 stsp free(refname);
866 7848a0e1 2020-03-19 stsp err = got_error_from_errno("malloc");
869 659e7fbd 2020-03-20 stsp memcpy(id->sha1, href.id, SHA1_DIGEST_LENGTH);
870 7848a0e1 2020-03-19 stsp err = got_pathlist_append(&have_refs, refname, id);
872 7848a0e1 2020-03-19 stsp free(refname);
877 4ba14133 2020-03-20 stsp imsg_free(&imsg);
880 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_wanted_branches; i++) {
881 4ba14133 2020-03-20 stsp char *refname;
883 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
885 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
886 4ba14133 2020-03-20 stsp err = NULL;
889 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
891 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_BRANCH) {
892 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
895 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
896 4ba14133 2020-03-20 stsp if (datalen < sizeof(wbranch)) {
897 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
900 4ba14133 2020-03-20 stsp memcpy(&wbranch, imsg.data, sizeof(wbranch));
901 4ba14133 2020-03-20 stsp if (datalen - sizeof(wbranch) < wbranch.name_len) {
902 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
905 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(wbranch),
906 00b3e9ae 2023-01-11 op wbranch.name_len);
907 4ba14133 2020-03-20 stsp if (refname == NULL) {
908 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
912 4ba14133 2020-03-20 stsp err = got_pathlist_append(&wanted_branches, refname, NULL);
914 4ba14133 2020-03-20 stsp free(refname);
918 4ba14133 2020-03-20 stsp imsg_free(&imsg);
921 0e4002ca 2020-03-21 stsp for (i = 0; i < fetch_req.n_wanted_refs; i++) {
922 0e4002ca 2020-03-21 stsp char *refname;
924 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
926 0e4002ca 2020-03-21 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
927 0e4002ca 2020-03-21 stsp err = NULL;
930 0e4002ca 2020-03-21 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
932 0e4002ca 2020-03-21 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_REF) {
933 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
936 0e4002ca 2020-03-21 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
937 0e4002ca 2020-03-21 stsp if (datalen < sizeof(wref)) {
938 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
941 0e4002ca 2020-03-21 stsp memcpy(&wref, imsg.data, sizeof(wref));
942 0e4002ca 2020-03-21 stsp if (datalen - sizeof(wref) < wref.name_len) {
943 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
946 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(wref), wref.name_len);
947 0e4002ca 2020-03-21 stsp if (refname == NULL) {
948 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
952 0e4002ca 2020-03-21 stsp err = got_pathlist_append(&wanted_refs, refname, NULL);
954 0e4002ca 2020-03-21 stsp free(refname);
958 0e4002ca 2020-03-21 stsp imsg_free(&imsg);
961 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
963 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
964 93658fb9 2020-03-18 stsp err = NULL;
967 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
969 f826addf 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_OUTFD) {
970 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
973 93658fb9 2020-03-18 stsp if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
974 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
977 93658fb9 2020-03-18 stsp packfd = imsg.fd;
979 1d72a2a0 2020-03-24 stsp err = fetch_pack(fetchfd, packfd, pack_sha1, &have_refs,
980 41b0de12 2020-03-21 stsp fetch_req.fetch_all_branches, &wanted_branches,
981 0e4002ca 2020-03-21 stsp &wanted_refs, fetch_req.list_refs_only, &ibuf);
983 d8bacb93 2023-01-10 mark got_pathlist_free(&have_refs, GOT_PATHLIST_FREE_ALL);
984 d8bacb93 2023-01-10 mark got_pathlist_free(&wanted_branches, GOT_PATHLIST_FREE_PATH);
985 0bec957e 2020-03-21 stsp if (fetchfd != -1 && close(fetchfd) == -1 && err == NULL)
986 0bec957e 2020-03-21 stsp err = got_error_from_errno("close");
987 9ff10419 2020-03-18 stsp if (packfd != -1 && close(packfd) == -1 && err == NULL)
988 9ff10419 2020-03-18 stsp err = got_error_from_errno("close");
989 9ff10419 2020-03-18 stsp if (err != NULL)
990 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
992 1d72a2a0 2020-03-24 stsp err = send_fetch_done(&ibuf, pack_sha1);
993 cf875574 2020-03-18 stsp if (err != NULL) {
994 93658fb9 2020-03-18 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
995 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
