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 5822e79e 2023-02-23 op #include <sha2.h>
34 93658fb9 2020-03-18 stsp #include <fcntl.h>
35 81a12da5 2020-09-09 naddy #include <unistd.h>
36 93658fb9 2020-03-18 stsp #include <zlib.h>
37 93658fb9 2020-03-18 stsp #include <err.h>
39 93658fb9 2020-03-18 stsp #include "got_error.h"
40 93658fb9 2020-03-18 stsp #include "got_object.h"
41 abe0f35f 2020-03-18 stsp #include "got_path.h"
42 8a29a085 2020-03-18 stsp #include "got_version.h"
43 f1c6967f 2020-03-19 stsp #include "got_fetch.h"
44 659e7fbd 2020-03-20 stsp #include "got_reference.h"
46 53bf0b54 2023-02-23 op #include "got_lib_hash.h"
47 93658fb9 2020-03-18 stsp #include "got_lib_delta.h"
48 93658fb9 2020-03-18 stsp #include "got_lib_object.h"
49 93658fb9 2020-03-18 stsp #include "got_lib_object_parse.h"
50 93658fb9 2020-03-18 stsp #include "got_lib_privsep.h"
51 0872c0b0 2020-03-18 stsp #include "got_lib_pack.h"
52 f024663d 2021-09-05 stsp #include "got_lib_pkt.h"
53 bd3d9e54 2021-09-05 stsp #include "got_lib_gitproto.h"
54 dcb64fea 2022-02-23 stsp #include "got_lib_ratelimit.h"
57 74737945 2022-10-30 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
60 8a29a085 2020-03-18 stsp #ifndef nitems
61 8a29a085 2020-03-18 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
64 93658fb9 2020-03-18 stsp struct got_object *indexed;
65 858b0dfb 2020-03-20 stsp static int chattygot;
67 bd3d9e54 2021-09-05 stsp static const struct got_capability got_capabilities[] = {
68 bd3d9e54 2021-09-05 stsp { GOT_CAPA_AGENT, "got/" GOT_VERSION_STR },
69 bd3d9e54 2021-09-05 stsp { GOT_CAPA_OFS_DELTA, NULL },
70 bd3d9e54 2021-09-05 stsp { GOT_CAPA_SIDE_BAND_64K, NULL },
74 7848a0e1 2020-03-19 stsp match_remote_ref(struct got_pathlist_head *have_refs,
75 188f8dcf 2023-02-07 stsp struct got_object_id *my_id, const char *refname)
77 33501562 2020-03-18 stsp struct got_pathlist_entry *pe;
79 7848a0e1 2020-03-19 stsp /* XXX zero-hash signifies we don't have this ref;
80 7848a0e1 2020-03-19 stsp * we should use a flag instead */
81 7848a0e1 2020-03-19 stsp memset(my_id, 0, sizeof(*my_id));
83 33501562 2020-03-18 stsp TAILQ_FOREACH(pe, have_refs, entry) {
84 7848a0e1 2020-03-19 stsp struct got_object_id *id = pe->data;
85 5e91dae4 2022-08-30 stsp if (strcmp(pe->path, refname) == 0) {
86 7848a0e1 2020-03-19 stsp memcpy(my_id, id, sizeof(*my_id));
93 659e7fbd 2020-03-20 stsp match_branch(const char *branch, const char *wanted_branch)
95 659e7fbd 2020-03-20 stsp if (strncmp(branch, "refs/heads/", 11) != 0)
98 659e7fbd 2020-03-20 stsp if (strncmp(wanted_branch, "refs/heads/", 11) == 0)
99 659e7fbd 2020-03-20 stsp wanted_branch += 11;
101 659e7fbd 2020-03-20 stsp return (strcmp(branch + 11, wanted_branch) == 0);
105 0e4002ca 2020-03-21 stsp match_wanted_ref(const char *refname, const char *wanted_ref)
107 0e4002ca 2020-03-21 stsp if (strncmp(refname, "refs/", 5) != 0)
109 0e4002ca 2020-03-21 stsp refname += 5;
112 0e4002ca 2020-03-21 stsp * Prevent fetching of references that won't make any
113 0e4002ca 2020-03-21 stsp * sense outside of the remote repository's context.
115 0e4002ca 2020-03-21 stsp if (strncmp(refname, "got/", 4) == 0)
117 0e4002ca 2020-03-21 stsp if (strncmp(refname, "remotes/", 8) == 0)
120 0e4002ca 2020-03-21 stsp if (strncmp(wanted_ref, "refs/", 5) == 0)
121 0e4002ca 2020-03-21 stsp wanted_ref += 5;
123 0e4002ca 2020-03-21 stsp /* Allow prefix match. */
124 0e4002ca 2020-03-21 stsp if (got_path_is_child(refname, wanted_ref, strlen(wanted_ref)))
127 0e4002ca 2020-03-21 stsp /* Allow exact match. */
128 0e4002ca 2020-03-21 stsp return (strcmp(refname, wanted_ref) == 0);
131 abe0f35f 2020-03-18 stsp static const struct got_error *
132 e70bf110 2020-03-22 stsp send_fetch_server_progress(struct imsgbuf *ibuf, const char *msg, size_t msglen)
134 e70bf110 2020-03-22 stsp if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
135 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
137 e70bf110 2020-03-22 stsp if (msglen == 0)
138 e70bf110 2020-03-22 stsp return NULL;
140 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_SERVER_PROGRESS, 0, 0, -1,
141 e70bf110 2020-03-22 stsp msg, msglen) == -1)
142 e70bf110 2020-03-22 stsp return got_error_from_errno(
143 e70bf110 2020-03-22 stsp "imsg_compose FETCH_SERVER_PROGRESS");
145 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
148 531c3985 2020-03-18 stsp static const struct got_error *
149 dcb64fea 2022-02-23 stsp send_fetch_download_progress(struct imsgbuf *ibuf, off_t bytes,
150 dcb64fea 2022-02-23 stsp struct got_ratelimit *rl)
152 dcb64fea 2022-02-23 stsp const struct got_error *err;
153 dcb64fea 2022-02-23 stsp int elapsed = 0;
156 dcb64fea 2022-02-23 stsp err = got_ratelimit_check(&elapsed, rl);
157 dcb64fea 2022-02-23 stsp if (err || !elapsed)
158 dcb64fea 2022-02-23 stsp return err;
161 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DOWNLOAD_PROGRESS, 0, 0, -1,
162 e70bf110 2020-03-22 stsp &bytes, sizeof(bytes)) == -1)
163 e70bf110 2020-03-22 stsp return got_error_from_errno(
164 e70bf110 2020-03-22 stsp "imsg_compose FETCH_DOWNLOAD_PROGRESS");
166 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
169 e70bf110 2020-03-22 stsp static const struct got_error *
170 1d72a2a0 2020-03-24 stsp send_fetch_done(struct imsgbuf *ibuf, uint8_t *pack_sha1)
172 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DONE, 0, 0, -1,
173 1d72a2a0 2020-03-24 stsp pack_sha1, SHA1_DIGEST_LENGTH) == -1)
174 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_compose FETCH");
175 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
178 e70bf110 2020-03-22 stsp static const struct got_error *
179 531c3985 2020-03-18 stsp fetch_progress(struct imsgbuf *ibuf, const char *buf, size_t len)
183 531c3985 2020-03-18 stsp if (len == 0)
184 531c3985 2020-03-18 stsp return NULL;
187 531c3985 2020-03-18 stsp * Truncate messages which exceed the maximum imsg payload size.
188 531c3985 2020-03-18 stsp * Server may send up to 64k.
190 531c3985 2020-03-18 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
191 531c3985 2020-03-18 stsp len = MAX_IMSGSIZE - IMSG_HEADER_SIZE;
193 531c3985 2020-03-18 stsp /* Only allow printable ASCII. */
194 531c3985 2020-03-18 stsp for (i = 0; i < len; i++) {
195 531c3985 2020-03-18 stsp if (isprint((unsigned char)buf[i]) ||
196 531c3985 2020-03-18 stsp isspace((unsigned char)buf[i]))
198 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
199 531c3985 2020-03-18 stsp "non-printable progress message received from server");
202 e70bf110 2020-03-22 stsp return send_fetch_server_progress(ibuf, buf, len);
205 8a29a085 2020-03-18 stsp static const struct got_error *
206 531c3985 2020-03-18 stsp fetch_error(const char *buf, size_t len)
208 531c3985 2020-03-18 stsp static char msg[1024];
211 531c3985 2020-03-18 stsp for (i = 0; i < len && i < sizeof(msg) - 1; i++) {
212 99fd9ff4 2022-11-17 op if (!isprint((unsigned char)buf[i]))
213 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
214 531c3985 2020-03-18 stsp "non-printable error message received from server");
215 531c3985 2020-03-18 stsp msg[i] = buf[i];
217 531c3985 2020-03-18 stsp msg[i] = '\0';
218 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_FETCH_FAILED, msg);
221 531c3985 2020-03-18 stsp static const struct got_error *
222 e70bf110 2020-03-22 stsp send_fetch_symrefs(struct imsgbuf *ibuf, struct got_pathlist_head *symrefs)
224 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
225 e70bf110 2020-03-22 stsp size_t len, nsymrefs = 0;
226 e70bf110 2020-03-22 stsp struct got_pathlist_entry *pe;
228 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_symrefs);
229 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
230 e70bf110 2020-03-22 stsp const char *target = pe->data;
231 e70bf110 2020-03-22 stsp len += sizeof(struct got_imsg_fetch_symref) +
232 e70bf110 2020-03-22 stsp pe->path_len + strlen(target);
233 e70bf110 2020-03-22 stsp nsymrefs++;
236 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
237 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
239 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_SYMREFS, 0, 0, len);
240 e70bf110 2020-03-22 stsp if (wbuf == NULL)
241 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_SYMREFS");
243 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symrefs definition! */
244 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &nsymrefs, sizeof(nsymrefs)) == -1)
245 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
247 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
248 e70bf110 2020-03-22 stsp const char *name = pe->path;
249 e70bf110 2020-03-22 stsp size_t name_len = pe->path_len;
250 e70bf110 2020-03-22 stsp const char *target = pe->data;
251 e70bf110 2020-03-22 stsp size_t target_len = strlen(target);
253 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symref definition! */
254 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1)
255 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
256 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &target_len, sizeof(target_len)) == -1)
257 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
258 1453347d 2022-05-19 stsp if (imsg_add(wbuf, name, name_len) == -1)
259 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
260 1453347d 2022-05-19 stsp if (imsg_add(wbuf, target, target_len) == -1)
261 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_SYMREFS");
264 e70bf110 2020-03-22 stsp wbuf->fd = -1;
265 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
266 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
269 e70bf110 2020-03-22 stsp static const struct got_error *
270 e70bf110 2020-03-22 stsp send_fetch_ref(struct imsgbuf *ibuf, struct got_object_id *refid,
271 e70bf110 2020-03-22 stsp const char *refname)
273 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
274 e70bf110 2020-03-22 stsp size_t len, reflen = strlen(refname);
276 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_ref) + reflen;
277 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
278 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
280 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REF, 0, 0, len);
281 e70bf110 2020-03-22 stsp if (wbuf == NULL)
282 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_REF");
284 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_ref definition! */
285 0701e66c 2023-02-01 op if (imsg_add(wbuf, refid, sizeof(*refid)) == -1)
286 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_REF");
287 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refname, reflen) == -1)
288 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add FETCH_REF");
290 e70bf110 2020-03-22 stsp wbuf->fd = -1;
291 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
292 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
295 188f8dcf 2023-02-07 stsp static const struct got_error *
296 188f8dcf 2023-02-07 stsp fetch_ref(struct imsgbuf *ibuf, struct got_pathlist_head *have_refs,
297 188f8dcf 2023-02-07 stsp struct got_object_id *have, struct got_object_id *want,
298 188f8dcf 2023-02-07 stsp const char *refname, const char *id_str)
300 188f8dcf 2023-02-07 stsp const struct got_error *err;
301 188f8dcf 2023-02-07 stsp char *theirs = NULL, *mine = NULL;
303 87a3ab84 2023-02-23 op if (!got_parse_object_id(want, id_str, GOT_HASH_SHA1)) {
304 188f8dcf 2023-02-07 stsp err = got_error(GOT_ERR_BAD_OBJ_ID_STR);
308 188f8dcf 2023-02-07 stsp match_remote_ref(have_refs, have, refname);
309 188f8dcf 2023-02-07 stsp err = send_fetch_ref(ibuf, want, refname);
313 188f8dcf 2023-02-07 stsp if (chattygot)
314 188f8dcf 2023-02-07 stsp fprintf(stderr, "%s: %s will be fetched\n",
315 188f8dcf 2023-02-07 stsp getprogname(), refname);
316 188f8dcf 2023-02-07 stsp if (chattygot > 1) {
317 188f8dcf 2023-02-07 stsp err = got_object_id_str(&theirs, want);
320 188f8dcf 2023-02-07 stsp err = got_object_id_str(&mine, have);
323 188f8dcf 2023-02-07 stsp fprintf(stderr, "%s: remote: %s\n%s: local: %s\n",
324 188f8dcf 2023-02-07 stsp getprogname(), theirs, getprogname(), mine);
327 188f8dcf 2023-02-07 stsp free(theirs);
328 188f8dcf 2023-02-07 stsp free(mine);
329 188f8dcf 2023-02-07 stsp return err;
332 e70bf110 2020-03-22 stsp static const struct got_error *
333 1d72a2a0 2020-03-24 stsp fetch_pack(int fd, int packfd, uint8_t *pack_sha1,
334 659e7fbd 2020-03-20 stsp struct got_pathlist_head *have_refs, int fetch_all_branches,
335 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_branches,
336 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_refs, int list_refs_only,
337 118a625d 2023-02-18 mark const char *worktree_branch, const char *remote_head,
338 118a625d 2023-02-18 mark int no_head, struct imsgbuf *ibuf)
340 9ff10419 2020-03-18 stsp const struct got_error *err = NULL;
341 77d7d3bb 2021-09-05 stsp char buf[GOT_PKT_MAX];
342 93658fb9 2020-03-18 stsp char hashstr[SHA1_DIGEST_STRING_LENGTH];
343 93658fb9 2020-03-18 stsp struct got_object_id *have, *want;
344 8a29a085 2020-03-18 stsp int is_firstpkt = 1, nref = 0, refsz = 16;
345 7848a0e1 2020-03-19 stsp int i, n, nwant = 0, nhave = 0, acked = 0;
346 5672d305 2020-03-18 stsp off_t packsz = 0, last_reported_packsz = 0;
347 4bff57b4 2023-02-14 stsp char *id_str = NULL, *default_id_str = NULL, *refname = NULL;
348 00cd0e0a 2020-03-18 stsp char *server_capabilities = NULL, *my_capabilities = NULL;
349 659e7fbd 2020-03-20 stsp const char *default_branch = NULL;
350 abe0f35f 2020-03-18 stsp struct got_pathlist_head symrefs;
351 abe0f35f 2020-03-18 stsp struct got_pathlist_entry *pe;
352 406106ee 2020-03-20 stsp int sent_my_capabilites = 0, have_sidebands = 0;
353 4bff57b4 2023-02-14 stsp int found_branch = 0;
354 ae25a666 2023-02-23 op struct got_hash ctx;
355 dc671e91 2020-03-24 stsp uint8_t sha1_buf[SHA1_DIGEST_LENGTH];
356 dc671e91 2020-03-24 stsp size_t sha1_buf_len = 0;
358 dcb64fea 2022-02-23 stsp struct got_ratelimit rl;
360 abe0f35f 2020-03-18 stsp TAILQ_INIT(&symrefs);
361 ae25a666 2023-02-23 op got_hash_init(&ctx, GOT_HASH_SHA1);
362 dcb64fea 2022-02-23 stsp got_ratelimit_init(&rl, 0, 500);
364 93658fb9 2020-03-18 stsp have = malloc(refsz * sizeof(have[0]));
365 9ff10419 2020-03-18 stsp if (have == NULL)
366 9ff10419 2020-03-18 stsp return got_error_from_errno("malloc");
367 93658fb9 2020-03-18 stsp want = malloc(refsz * sizeof(want[0]));
368 9ff10419 2020-03-18 stsp if (want == NULL) {
369 9ff10419 2020-03-18 stsp err = got_error_from_errno("malloc");
372 9ff10419 2020-03-18 stsp while (1) {
373 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
376 9ff10419 2020-03-18 stsp if (n == 0)
378 a6f88e33 2020-03-18 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
379 531c3985 2020-03-18 stsp err = fetch_error(&buf[4], n - 4);
382 e99d9267 2021-10-07 stsp free(id_str);
383 e99d9267 2021-10-07 stsp free(refname);
384 bd3d9e54 2021-09-05 stsp err = got_gitproto_parse_refline(&id_str, &refname,
385 bd3d9e54 2021-09-05 stsp &server_capabilities, buf, n);
389 188f8dcf 2023-02-07 stsp if (refsz == nref + 1) {
390 ec218e16 2023-02-07 mark struct got_object_id *h, *w;
392 188f8dcf 2023-02-07 stsp refsz *= 2;
393 ec218e16 2023-02-07 mark h = reallocarray(have, refsz, sizeof(have[0]));
394 ec218e16 2023-02-07 mark if (h == NULL) {
395 188f8dcf 2023-02-07 stsp err = got_error_from_errno("reallocarray");
399 ec218e16 2023-02-07 mark w = reallocarray(want, refsz, sizeof(want[0]));
400 ec218e16 2023-02-07 mark if (w == NULL) {
401 188f8dcf 2023-02-07 stsp err = got_error_from_errno("reallocarray");
407 8a29a085 2020-03-18 stsp if (is_firstpkt) {
408 858b0dfb 2020-03-20 stsp if (chattygot && server_capabilities[0] != '\0')
409 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: server capabilities: %s\n",
410 858b0dfb 2020-03-20 stsp getprogname(), server_capabilities);
411 bd3d9e54 2021-09-05 stsp err = got_gitproto_match_capabilities(&my_capabilities,
412 bd3d9e54 2021-09-05 stsp &symrefs, server_capabilities,
413 bd3d9e54 2021-09-05 stsp got_capabilities, nitems(got_capabilities));
416 858b0dfb 2020-03-20 stsp if (chattygot)
417 2690194b 2020-03-21 stsp fprintf(stderr, "%s: my capabilities:%s\n",
418 a90356f7 2021-08-26 stsp getprogname(), my_capabilities != NULL ?
419 a90356f7 2021-08-26 stsp my_capabilities : "");
420 e70bf110 2020-03-22 stsp err = send_fetch_symrefs(ibuf, &symrefs);
423 7848a0e1 2020-03-19 stsp is_firstpkt = 0;
424 659e7fbd 2020-03-20 stsp if (!fetch_all_branches) {
425 659e7fbd 2020-03-20 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
426 659e7fbd 2020-03-20 stsp const char *name = pe->path;
427 659e7fbd 2020-03-20 stsp const char *symref_target = pe->data;
428 659e7fbd 2020-03-20 stsp if (strcmp(name, GOT_REF_HEAD) != 0)
430 659e7fbd 2020-03-20 stsp default_branch = symref_target;
434 c9f1ac46 2022-11-08 stsp if (default_branch)
437 2690194b 2020-03-21 stsp if (strstr(refname, "^{}")) {
438 2690194b 2020-03-21 stsp if (chattygot) {
439 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
440 2690194b 2020-03-21 stsp getprogname(), refname);
444 4bff57b4 2023-02-14 stsp if (default_branch && default_id_str == NULL &&
445 4bff57b4 2023-02-14 stsp strcmp(refname, default_branch) == 0) {
446 4bff57b4 2023-02-14 stsp default_id_str = strdup(id_str);
447 4bff57b4 2023-02-14 stsp if (default_id_str == NULL) {
448 4bff57b4 2023-02-14 stsp err = got_error_from_errno("strdup");
453 188f8dcf 2023-02-07 stsp if (list_refs_only || strncmp(refname, "refs/tags/", 10) == 0) {
454 188f8dcf 2023-02-07 stsp err = fetch_ref(ibuf, have_refs, &have[nref],
455 188f8dcf 2023-02-07 stsp &want[nref], refname, id_str);
459 188f8dcf 2023-02-07 stsp } else if (strncmp(refname, "refs/heads/", 11) == 0) {
460 188f8dcf 2023-02-07 stsp if (fetch_all_branches) {
461 188f8dcf 2023-02-07 stsp err = fetch_ref(ibuf, have_refs, &have[nref],
462 188f8dcf 2023-02-07 stsp &want[nref], refname, id_str);
466 4bff57b4 2023-02-14 stsp found_branch = 1;
469 188f8dcf 2023-02-07 stsp TAILQ_FOREACH(pe, wanted_branches, entry) {
470 188f8dcf 2023-02-07 stsp if (match_branch(refname, pe->path))
473 188f8dcf 2023-02-07 stsp if (pe != NULL || (worktree_branch != NULL &&
474 188f8dcf 2023-02-07 stsp match_branch(refname, worktree_branch))) {
475 188f8dcf 2023-02-07 stsp err = fetch_ref(ibuf, have_refs, &have[nref],
476 188f8dcf 2023-02-07 stsp &want[nref], refname, id_str);
480 4bff57b4 2023-02-14 stsp found_branch = 1;
481 188f8dcf 2023-02-07 stsp } else if (chattygot) {
482 188f8dcf 2023-02-07 stsp fprintf(stderr, "%s: ignoring %s\n",
483 188f8dcf 2023-02-07 stsp getprogname(), refname);
486 188f8dcf 2023-02-07 stsp TAILQ_FOREACH(pe, wanted_refs, entry) {
487 188f8dcf 2023-02-07 stsp if (match_wanted_ref(refname, pe->path))
490 188f8dcf 2023-02-07 stsp if (pe != NULL) {
491 188f8dcf 2023-02-07 stsp err = fetch_ref(ibuf, have_refs, &have[nref],
492 188f8dcf 2023-02-07 stsp &want[nref], refname, id_str);
496 188f8dcf 2023-02-07 stsp } else if (chattygot) {
497 188f8dcf 2023-02-07 stsp fprintf(stderr, "%s: ignoring %s\n",
498 188f8dcf 2023-02-07 stsp getprogname(), refname);
503 41b0de12 2020-03-21 stsp if (list_refs_only)
507 118a625d 2023-02-18 mark * If -b was not used and either none of the requested branches
508 118a625d 2023-02-18 mark * (got.conf, worktree) were found or the client already has the
509 118a625d 2023-02-18 mark * remote HEAD symref but its target changed, fetch remote's HEAD.
511 118a625d 2023-02-18 mark if (!no_head && default_branch && default_id_str &&
512 4bff57b4 2023-02-14 stsp strncmp(default_branch, "refs/heads/", 11) == 0) {
513 118a625d 2023-02-18 mark int remote_head_changed = 0;
515 118a625d 2023-02-18 mark if (remote_head) {
516 118a625d 2023-02-18 mark if (strcmp(remote_head, default_branch + 11) != 0)
517 118a625d 2023-02-18 mark remote_head_changed = 1;
520 118a625d 2023-02-18 mark if (!found_branch || remote_head_changed) {
521 118a625d 2023-02-18 mark err = fetch_ref(ibuf, have_refs, &have[nref],
522 118a625d 2023-02-18 mark &want[nref], default_branch, default_id_str);
529 188f8dcf 2023-02-07 stsp /* Abort if we haven't found anything to fetch. */
530 188f8dcf 2023-02-07 stsp if (nref == 0) {
531 f72ce919 2023-02-13 mark struct got_pathlist_entry *pe;
532 f72ce919 2023-02-13 mark static char msg[PATH_MAX + 33];
534 f72ce919 2023-02-13 mark pe = TAILQ_FIRST(wanted_branches);
536 f72ce919 2023-02-13 mark snprintf(msg, sizeof(msg),
537 f72ce919 2023-02-13 mark "branch \"%s\" not found on server", pe->path);
538 f72ce919 2023-02-13 mark err = got_error_msg(GOT_ERR_FETCH_NO_BRANCH, msg);
542 f72ce919 2023-02-13 mark pe = TAILQ_FIRST(wanted_refs);
544 f72ce919 2023-02-13 mark snprintf(msg, sizeof(msg),
545 f72ce919 2023-02-13 mark "reference \"%s\" not found on server", pe->path);
546 f72ce919 2023-02-13 mark err = got_error_msg(GOT_ERR_FETCH_NO_BRANCH, msg);
550 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_FETCH_NO_BRANCH);
554 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
555 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &want[i]) == 0)
557 93658fb9 2020-03-18 stsp got_sha1_digest_to_str(want[i].sha1, hashstr, sizeof(hashstr));
558 406106ee 2020-03-20 stsp n = snprintf(buf, sizeof(buf), "want %s%s\n", hashstr,
559 a90356f7 2021-08-26 stsp sent_my_capabilites || my_capabilities == NULL ?
560 a90356f7 2021-08-26 stsp "" : my_capabilities);
561 438d0cc3 2022-08-16 op if (n < 0 || (size_t)n >= sizeof(buf)) {
562 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
565 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
568 858b0dfb 2020-03-20 stsp sent_my_capabilites = 1;
571 f024663d 2021-09-05 stsp err = got_pkt_flushpkt(fd, chattygot);
575 3c912d14 2020-03-19 stsp if (nwant == 0)
578 dd088d95 2021-10-06 stsp TAILQ_FOREACH(pe, have_refs, entry) {
579 dd088d95 2021-10-06 stsp struct got_object_id *id = pe->data;
580 dd088d95 2021-10-06 stsp got_sha1_digest_to_str(id->sha1, hashstr, sizeof(hashstr));
581 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "have %s\n", hashstr);
582 438d0cc3 2022-08-16 op if (n < 0 || (size_t)n >= sizeof(buf)) {
583 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
586 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
592 1a0d06a3 2023-02-20 stsp n = strlcpy(buf, "done\n", sizeof(buf));
593 1a0d06a3 2023-02-20 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
597 7848a0e1 2020-03-19 stsp while (nhave > 0 && !acked) {
598 7848a0e1 2020-03-19 stsp struct got_object_id common_id;
600 7848a0e1 2020-03-19 stsp /* The server should ACK the object IDs we need. */
601 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
604 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
605 7848a0e1 2020-03-19 stsp err = fetch_error(&buf[4], n - 4);
608 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "NAK\n", 4) == 0) {
610 1a0d06a3 2023-02-20 stsp * Server could not find a common ancestor.
611 1a0d06a3 2023-02-20 stsp * Perhaps it is an out-of-date mirror, or there
612 1a0d06a3 2023-02-20 stsp * is a repository with unrelated history.
616 7848a0e1 2020-03-19 stsp if (n < 4 + SHA1_DIGEST_STRING_LENGTH ||
617 7848a0e1 2020-03-19 stsp strncmp(buf, "ACK ", 4) != 0) {
618 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
619 7848a0e1 2020-03-19 stsp "unexpected message from server");
622 87a3ab84 2023-02-23 op if (!got_parse_object_id(&common_id, buf + 4,
623 87a3ab84 2023-02-23 op GOT_HASH_SHA1)) {
624 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
625 7848a0e1 2020-03-19 stsp "bad object ID in ACK packet from server");
631 7848a0e1 2020-03-19 stsp if (nhave == 0) {
632 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
635 7848a0e1 2020-03-19 stsp if (n != 4 || strncmp(buf, "NAK\n", n) != 0) {
636 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
637 7848a0e1 2020-03-19 stsp "unexpected message from server");
642 858b0dfb 2020-03-20 stsp if (chattygot)
643 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: fetching...\n", getprogname());
645 531c3985 2020-03-18 stsp if (my_capabilities != NULL &&
646 531c3985 2020-03-18 stsp strstr(my_capabilities, GOT_CAPA_SIDE_BAND_64K) != NULL)
647 531c3985 2020-03-18 stsp have_sidebands = 1;
649 9ff10419 2020-03-18 stsp while (1) {
650 dc671e91 2020-03-24 stsp ssize_t r = 0;
651 531c3985 2020-03-18 stsp int datalen = -1;
653 531c3985 2020-03-18 stsp if (have_sidebands) {
654 f024663d 2021-09-05 stsp err = got_pkt_readhdr(&datalen, fd, chattygot);
657 531c3985 2020-03-18 stsp if (datalen <= 0)
660 531c3985 2020-03-18 stsp /* Read sideband channel ID (one byte). */
661 531c3985 2020-03-18 stsp r = read(fd, buf, 1);
662 531c3985 2020-03-18 stsp if (r == -1) {
663 531c3985 2020-03-18 stsp err = got_error_from_errno("read");
666 531c3985 2020-03-18 stsp if (r != 1) {
667 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
668 531c3985 2020-03-18 stsp "short packet");
671 531c3985 2020-03-18 stsp if (datalen > sizeof(buf) - 5) {
672 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
673 531c3985 2020-03-18 stsp "bad packet length");
676 531c3985 2020-03-18 stsp datalen--; /* sideband ID has been read */
677 531c3985 2020-03-18 stsp if (buf[0] == GOT_SIDEBAND_PACKFILE_DATA) {
678 531c3985 2020-03-18 stsp /* Read packfile data. */
679 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
682 531c3985 2020-03-18 stsp if (r != datalen) {
683 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
684 531c3985 2020-03-18 stsp "packet too short");
687 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_PROGRESS_INFO) {
688 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
691 531c3985 2020-03-18 stsp if (r != datalen) {
692 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
693 531c3985 2020-03-18 stsp "packet too short");
696 531c3985 2020-03-18 stsp err = fetch_progress(ibuf, buf, r);
700 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_ERROR_INFO) {
701 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
704 531c3985 2020-03-18 stsp if (r != datalen) {
705 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
706 531c3985 2020-03-18 stsp "packet too short");
709 531c3985 2020-03-18 stsp err = fetch_error(buf, r);
711 98f64f14 2021-01-05 stsp } else if (buf[0] == 'A') {
712 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
715 98f64f14 2021-01-05 stsp if (r != datalen) {
716 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
717 98f64f14 2021-01-05 stsp "packet too short");
721 98f64f14 2021-01-05 stsp * Git server responds with ACK after 'done'
722 98f64f14 2021-01-05 stsp * even though multi_ack is disabled?!?
724 98f64f14 2021-01-05 stsp buf[r] = '\0';
725 98f64f14 2021-01-05 stsp if (strncmp(buf, "CK ", 3) == 0)
726 98f64f14 2021-01-05 stsp continue; /* ignore */
727 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
728 98f64f14 2021-01-05 stsp "unexpected message from server");
731 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
732 531c3985 2020-03-18 stsp "unknown side-band received from server");
736 531c3985 2020-03-18 stsp /* No sideband channel. Every byte is packfile data. */
737 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, sizeof buf);
740 531c3985 2020-03-18 stsp if (r <= 0)
745 dc671e91 2020-03-24 stsp * An expected SHA1 checksum sits at the end of the pack file.
746 dc671e91 2020-03-24 stsp * Since we don't know the file size ahead of time we have to
747 dc671e91 2020-03-24 stsp * keep SHA1_DIGEST_LENGTH bytes buffered and avoid mixing
748 dc671e91 2020-03-24 stsp * those bytes into our SHA1 checksum computation until we
749 dc671e91 2020-03-24 stsp * know for sure that additional pack file data bytes follow.
751 dc671e91 2020-03-24 stsp * We can assume r > 0 since otherwise the loop would exit.
753 dc671e91 2020-03-24 stsp if (r < SHA1_DIGEST_LENGTH) {
754 dc671e91 2020-03-24 stsp if (sha1_buf_len < SHA1_DIGEST_LENGTH) {
756 dc671e91 2020-03-24 stsp * If there's enough buffered + read data to
757 dc671e91 2020-03-24 stsp * fill up the buffer then shift a sufficient
758 dc671e91 2020-03-24 stsp * amount of bytes out at the front to make
759 dc671e91 2020-03-24 stsp * room, mixing those bytes into the checksum.
761 74737945 2022-10-30 stsp if (sha1_buf_len > 0 &&
762 dc671e91 2020-03-24 stsp sha1_buf_len + r > SHA1_DIGEST_LENGTH) {
763 74737945 2022-10-30 stsp size_t nshift = MIN(sha1_buf_len + r -
764 74737945 2022-10-30 stsp SHA1_DIGEST_LENGTH, sha1_buf_len);
765 ae25a666 2023-02-23 op got_hash_update(&ctx, sha1_buf,
767 74737945 2022-10-30 stsp memmove(sha1_buf, sha1_buf + nshift,
768 74737945 2022-10-30 stsp sha1_buf_len - nshift);
769 74737945 2022-10-30 stsp sha1_buf_len -= nshift;
772 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
773 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len, buf, r);
774 dc671e91 2020-03-24 stsp sha1_buf_len += r;
777 dc671e91 2020-03-24 stsp * Mix in previously buffered bytes which
778 dc671e91 2020-03-24 stsp * are not part of the checksum after all.
780 ae25a666 2023-02-23 op got_hash_update(&ctx, sha1_buf, r);
782 dc671e91 2020-03-24 stsp /* Update potential checksum buffer. */
783 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + r,
784 dc671e91 2020-03-24 stsp sha1_buf_len - r);
785 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len - r, buf, r);
788 dc671e91 2020-03-24 stsp /* Mix in any previously buffered bytes. */
789 ae25a666 2023-02-23 op got_hash_update(&ctx, sha1_buf, sha1_buf_len);
791 dc671e91 2020-03-24 stsp /* Mix in bytes read minus potential checksum bytes. */
792 ae25a666 2023-02-23 op got_hash_update(&ctx, buf, r - SHA1_DIGEST_LENGTH);
794 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
795 dc671e91 2020-03-24 stsp memcpy(sha1_buf, buf + r - SHA1_DIGEST_LENGTH,
796 dc671e91 2020-03-24 stsp SHA1_DIGEST_LENGTH);
797 dc671e91 2020-03-24 stsp sha1_buf_len = SHA1_DIGEST_LENGTH;
800 531c3985 2020-03-18 stsp /* Write packfile data to temporary pack file. */
801 fe53745c 2020-03-18 stsp w = write(packfd, buf, r);
802 9ff10419 2020-03-18 stsp if (w == -1) {
803 9ff10419 2020-03-18 stsp err = got_error_from_errno("write");
806 fe53745c 2020-03-18 stsp if (w != r) {
807 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_IO);
810 531c3985 2020-03-18 stsp packsz += w;
812 5672d305 2020-03-18 stsp /* Don't send too many progress privsep messages. */
813 5672d305 2020-03-18 stsp if (packsz > last_reported_packsz + 1024) {
814 dcb64fea 2022-02-23 stsp err = send_fetch_download_progress(ibuf, packsz, &rl);
817 5672d305 2020-03-18 stsp last_reported_packsz = packsz;
820 dcb64fea 2022-02-23 stsp err = send_fetch_download_progress(ibuf, packsz, NULL);
824 ae25a666 2023-02-23 op got_hash_final(&ctx, pack_sha1);
825 dc671e91 2020-03-24 stsp if (sha1_buf_len != SHA1_DIGEST_LENGTH ||
826 dc671e91 2020-03-24 stsp memcmp(pack_sha1, sha1_buf, sha1_buf_len) != 0) {
827 dc671e91 2020-03-24 stsp err = got_error_msg(GOT_ERR_BAD_PACKFILE,
828 dc671e91 2020-03-24 stsp "pack file checksum mismatch");
831 d8bacb93 2023-01-10 mark got_pathlist_free(&symrefs, GOT_PATHLIST_FREE_ALL);
832 9ff10419 2020-03-18 stsp free(have);
833 9ff10419 2020-03-18 stsp free(want);
834 00cd0e0a 2020-03-18 stsp free(id_str);
835 4bff57b4 2023-02-14 stsp free(default_id_str);
836 00cd0e0a 2020-03-18 stsp free(refname);
837 00cd0e0a 2020-03-18 stsp free(server_capabilities);
838 8f2d01a6 2020-03-18 stsp return err;
843 93658fb9 2020-03-18 stsp main(int argc, char **argv)
845 93658fb9 2020-03-18 stsp const struct got_error *err = NULL;
846 9114dd43 2023-01-10 mark int fetchfd = -1, packfd = -1;
847 1d72a2a0 2020-03-24 stsp uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
848 93658fb9 2020-03-18 stsp struct imsgbuf ibuf;
849 93658fb9 2020-03-18 stsp struct imsg imsg;
850 33501562 2020-03-18 stsp struct got_pathlist_head have_refs;
851 4ba14133 2020-03-20 stsp struct got_pathlist_head wanted_branches;
852 0e4002ca 2020-03-21 stsp struct got_pathlist_head wanted_refs;
853 4ba14133 2020-03-20 stsp struct got_imsg_fetch_request fetch_req;
854 659e7fbd 2020-03-20 stsp struct got_imsg_fetch_have_ref href;
855 4ba14133 2020-03-20 stsp struct got_imsg_fetch_wanted_branch wbranch;
856 0e4002ca 2020-03-21 stsp struct got_imsg_fetch_wanted_ref wref;
857 030daac8 2021-09-25 stsp size_t datalen, i;
858 118a625d 2023-02-18 mark char *remote_head = NULL, *worktree_branch = NULL;
860 7848a0e1 2020-03-19 stsp static int attached;
861 7848a0e1 2020-03-19 stsp while (!attached)
865 33501562 2020-03-18 stsp TAILQ_INIT(&have_refs);
866 4ba14133 2020-03-20 stsp TAILQ_INIT(&wanted_branches);
867 0e4002ca 2020-03-21 stsp TAILQ_INIT(&wanted_refs);
869 93658fb9 2020-03-18 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
870 ffb5f621 2020-03-18 stsp #ifndef PROFILE
871 ffb5f621 2020-03-18 stsp /* revoke access to most system calls */
872 ffb5f621 2020-03-18 stsp if (pledge("stdio recvfd", NULL) == -1) {
873 ffb5f621 2020-03-18 stsp err = got_error_from_errno("pledge");
874 ffb5f621 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
878 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
880 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
881 93658fb9 2020-03-18 stsp err = NULL;
884 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
886 93658fb9 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_REQUEST) {
887 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
890 33501562 2020-03-18 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
891 4ba14133 2020-03-20 stsp if (datalen < sizeof(fetch_req)) {
892 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
895 4ba14133 2020-03-20 stsp memcpy(&fetch_req, imsg.data, sizeof(fetch_req));
896 4ba14133 2020-03-20 stsp fetchfd = imsg.fd;
898 188f8dcf 2023-02-07 stsp if (datalen != sizeof(fetch_req) +
899 118a625d 2023-02-18 mark fetch_req.worktree_branch_len + fetch_req.remote_head_len) {
900 188f8dcf 2023-02-07 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
904 188f8dcf 2023-02-07 stsp if (fetch_req.worktree_branch_len != 0) {
905 188f8dcf 2023-02-07 stsp worktree_branch = strndup(imsg.data +
906 188f8dcf 2023-02-07 stsp sizeof(fetch_req), fetch_req.worktree_branch_len);
907 188f8dcf 2023-02-07 stsp if (worktree_branch == NULL) {
908 118a625d 2023-02-18 mark err = got_error_from_errno("strndup");
913 118a625d 2023-02-18 mark if (fetch_req.remote_head_len != 0) {
914 118a625d 2023-02-18 mark remote_head = strndup(imsg.data + sizeof(fetch_req) +
915 118a625d 2023-02-18 mark fetch_req.worktree_branch_len, fetch_req.remote_head_len);
916 118a625d 2023-02-18 mark if (remote_head == NULL) {
917 188f8dcf 2023-02-07 stsp err = got_error_from_errno("strndup");
922 4ba14133 2020-03-20 stsp imsg_free(&imsg);
924 2690194b 2020-03-21 stsp if (fetch_req.verbosity > 0)
925 2690194b 2020-03-21 stsp chattygot += fetch_req.verbosity;
927 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_have_refs; i++) {
928 7848a0e1 2020-03-19 stsp struct got_object_id *id;
929 7848a0e1 2020-03-19 stsp char *refname;
931 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
933 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
934 4ba14133 2020-03-20 stsp err = NULL;
937 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
939 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_HAVE_REF) {
940 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
943 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
944 4ba14133 2020-03-20 stsp if (datalen < sizeof(href)) {
945 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
948 4ba14133 2020-03-20 stsp memcpy(&href, imsg.data, sizeof(href));
949 4ba14133 2020-03-20 stsp if (datalen - sizeof(href) < href.name_len) {
950 7848a0e1 2020-03-19 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
953 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(href), href.name_len);
954 7848a0e1 2020-03-19 stsp if (refname == NULL) {
955 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
959 7848a0e1 2020-03-19 stsp id = malloc(sizeof(*id));
960 7848a0e1 2020-03-19 stsp if (id == NULL) {
961 7848a0e1 2020-03-19 stsp free(refname);
962 7848a0e1 2020-03-19 stsp err = got_error_from_errno("malloc");
965 4b4da3bb 2023-02-01 op memcpy(id, &href.id, sizeof(*id));
966 7848a0e1 2020-03-19 stsp err = got_pathlist_append(&have_refs, refname, id);
968 7848a0e1 2020-03-19 stsp free(refname);
973 4ba14133 2020-03-20 stsp imsg_free(&imsg);
976 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_wanted_branches; i++) {
977 4ba14133 2020-03-20 stsp char *refname;
979 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
981 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
982 4ba14133 2020-03-20 stsp err = NULL;
985 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
987 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_BRANCH) {
988 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
991 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
992 4ba14133 2020-03-20 stsp if (datalen < sizeof(wbranch)) {
993 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
996 4ba14133 2020-03-20 stsp memcpy(&wbranch, imsg.data, sizeof(wbranch));
997 4ba14133 2020-03-20 stsp if (datalen - sizeof(wbranch) < wbranch.name_len) {
998 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1001 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(wbranch),
1002 00b3e9ae 2023-01-11 op wbranch.name_len);
1003 4ba14133 2020-03-20 stsp if (refname == NULL) {
1004 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
1005 4ba14133 2020-03-20 stsp goto done;
1008 4ba14133 2020-03-20 stsp err = got_pathlist_append(&wanted_branches, refname, NULL);
1009 4ba14133 2020-03-20 stsp if (err) {
1010 4ba14133 2020-03-20 stsp free(refname);
1011 4ba14133 2020-03-20 stsp goto done;
1014 4ba14133 2020-03-20 stsp imsg_free(&imsg);
1017 0e4002ca 2020-03-21 stsp for (i = 0; i < fetch_req.n_wanted_refs; i++) {
1018 0e4002ca 2020-03-21 stsp char *refname;
1020 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
1021 9ca26ac3 2021-08-06 stsp if (err) {
1022 0e4002ca 2020-03-21 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1023 0e4002ca 2020-03-21 stsp err = NULL;
1024 0e4002ca 2020-03-21 stsp goto done;
1026 0e4002ca 2020-03-21 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1027 0e4002ca 2020-03-21 stsp goto done;
1028 0e4002ca 2020-03-21 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_REF) {
1029 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1030 0e4002ca 2020-03-21 stsp goto done;
1032 0e4002ca 2020-03-21 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1033 0e4002ca 2020-03-21 stsp if (datalen < sizeof(wref)) {
1034 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1035 0e4002ca 2020-03-21 stsp goto done;
1037 0e4002ca 2020-03-21 stsp memcpy(&wref, imsg.data, sizeof(wref));
1038 0e4002ca 2020-03-21 stsp if (datalen - sizeof(wref) < wref.name_len) {
1039 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1040 0e4002ca 2020-03-21 stsp goto done;
1042 00b3e9ae 2023-01-11 op refname = strndup(imsg.data + sizeof(wref), wref.name_len);
1043 0e4002ca 2020-03-21 stsp if (refname == NULL) {
1044 00b3e9ae 2023-01-11 op err = got_error_from_errno("strndup");
1045 0e4002ca 2020-03-21 stsp goto done;
1048 0e4002ca 2020-03-21 stsp err = got_pathlist_append(&wanted_refs, refname, NULL);
1049 0e4002ca 2020-03-21 stsp if (err) {
1050 0e4002ca 2020-03-21 stsp free(refname);
1051 0e4002ca 2020-03-21 stsp goto done;
1054 0e4002ca 2020-03-21 stsp imsg_free(&imsg);
1057 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
1058 9ca26ac3 2021-08-06 stsp if (err) {
1059 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1060 93658fb9 2020-03-18 stsp err = NULL;
1061 93658fb9 2020-03-18 stsp goto done;
1063 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1064 93658fb9 2020-03-18 stsp goto done;
1065 f826addf 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_OUTFD) {
1066 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1067 93658fb9 2020-03-18 stsp goto done;
1069 93658fb9 2020-03-18 stsp if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
1070 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1071 93658fb9 2020-03-18 stsp goto done;
1073 93658fb9 2020-03-18 stsp packfd = imsg.fd;
1075 1d72a2a0 2020-03-24 stsp err = fetch_pack(fetchfd, packfd, pack_sha1, &have_refs,
1076 41b0de12 2020-03-21 stsp fetch_req.fetch_all_branches, &wanted_branches,
1077 188f8dcf 2023-02-07 stsp &wanted_refs, fetch_req.list_refs_only,
1078 118a625d 2023-02-18 mark worktree_branch, remote_head, fetch_req.no_head, &ibuf);
1080 188f8dcf 2023-02-07 stsp free(worktree_branch);
1081 118a625d 2023-02-18 mark free(remote_head);
1082 d8bacb93 2023-01-10 mark got_pathlist_free(&have_refs, GOT_PATHLIST_FREE_ALL);
1083 d8bacb93 2023-01-10 mark got_pathlist_free(&wanted_branches, GOT_PATHLIST_FREE_PATH);
1084 0bec957e 2020-03-21 stsp if (fetchfd != -1 && close(fetchfd) == -1 && err == NULL)
1085 0bec957e 2020-03-21 stsp err = got_error_from_errno("close");
1086 9ff10419 2020-03-18 stsp if (packfd != -1 && close(packfd) == -1 && err == NULL)
1087 9ff10419 2020-03-18 stsp err = got_error_from_errno("close");
1088 9ff10419 2020-03-18 stsp if (err != NULL)
1089 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
1091 1d72a2a0 2020-03-24 stsp err = send_fetch_done(&ibuf, pack_sha1);
1092 cf875574 2020-03-18 stsp if (err != NULL) {
1093 93658fb9 2020-03-18 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
1094 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
