2 f8a36e22 2021-08-26 stsp * Copyright (c) 2019 Ori Bernstein <ori@openbsd.org>
3 f8a36e22 2021-08-26 stsp * Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
5 f8a36e22 2021-08-26 stsp * Permission to use, copy, modify, and distribute this software for any
6 f8a36e22 2021-08-26 stsp * purpose with or without fee is hereby granted, provided that the above
7 f8a36e22 2021-08-26 stsp * copyright notice and this permission notice appear in all copies.
9 f8a36e22 2021-08-26 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 f8a36e22 2021-08-26 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 f8a36e22 2021-08-26 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 f8a36e22 2021-08-26 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 f8a36e22 2021-08-26 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 f8a36e22 2021-08-26 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 f8a36e22 2021-08-26 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 f8a36e22 2021-08-26 stsp #include <sys/types.h>
19 f8a36e22 2021-08-26 stsp #include <sys/queue.h>
20 f8a36e22 2021-08-26 stsp #include <sys/uio.h>
21 f8a36e22 2021-08-26 stsp #include <sys/time.h>
22 f8a36e22 2021-08-26 stsp #include <sys/stat.h>
24 f8a36e22 2021-08-26 stsp #include <stdint.h>
25 f8a36e22 2021-08-26 stsp #include <errno.h>
26 f8a36e22 2021-08-26 stsp #include <imsg.h>
27 f8a36e22 2021-08-26 stsp #include <limits.h>
28 f8a36e22 2021-08-26 stsp #include <signal.h>
29 f8a36e22 2021-08-26 stsp #include <stdio.h>
30 f8a36e22 2021-08-26 stsp #include <stdlib.h>
31 f8a36e22 2021-08-26 stsp #include <string.h>
32 f8a36e22 2021-08-26 stsp #include <ctype.h>
33 f8a36e22 2021-08-26 stsp #include <sha1.h>
34 f8a36e22 2021-08-26 stsp #include <fcntl.h>
35 f8a36e22 2021-08-26 stsp #include <unistd.h>
36 f8a36e22 2021-08-26 stsp #include <zlib.h>
37 f8a36e22 2021-08-26 stsp #include <err.h>
39 f8a36e22 2021-08-26 stsp #include "got_error.h"
40 f8a36e22 2021-08-26 stsp #include "got_object.h"
41 f8a36e22 2021-08-26 stsp #include "got_path.h"
42 f8a36e22 2021-08-26 stsp #include "got_version.h"
43 f8a36e22 2021-08-26 stsp #include "got_fetch.h"
44 f8a36e22 2021-08-26 stsp #include "got_reference.h"
46 f8a36e22 2021-08-26 stsp #include "got_lib_sha1.h"
47 f8a36e22 2021-08-26 stsp #include "got_lib_delta.h"
48 f8a36e22 2021-08-26 stsp #include "got_lib_object.h"
49 f8a36e22 2021-08-26 stsp #include "got_lib_object_parse.h"
50 f8a36e22 2021-08-26 stsp #include "got_lib_privsep.h"
51 f8a36e22 2021-08-26 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 bed00385 2022-02-23 stsp #include "got_lib_ratelimit.h"
55 15f404b1 2022-10-31 stsp #include "got_lib_poll.h"
57 f8a36e22 2021-08-26 stsp #ifndef nitems
58 f8a36e22 2021-08-26 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
61 f8a36e22 2021-08-26 stsp struct got_object *indexed;
62 f8a36e22 2021-08-26 stsp static int chattygot;
64 f8a36e22 2021-08-26 stsp static const struct got_capability got_capabilities[] = {
65 f8a36e22 2021-08-26 stsp { GOT_CAPA_AGENT, "got/" GOT_VERSION_STR },
66 f8a36e22 2021-08-26 stsp { GOT_CAPA_OFS_DELTA, NULL },
68 f8a36e22 2021-08-26 stsp { GOT_CAPA_SIDE_BAND_64K, NULL },
70 f8a36e22 2021-08-26 stsp { GOT_CAPA_REPORT_STATUS, NULL },
71 f8a36e22 2021-08-26 stsp { GOT_CAPA_DELETE_REFS, NULL },
74 f8a36e22 2021-08-26 stsp static const struct got_error *
75 bed00385 2022-02-23 stsp send_upload_progress(struct imsgbuf *ibuf, off_t bytes,
76 bed00385 2022-02-23 stsp struct got_ratelimit *rl)
78 bed00385 2022-02-23 stsp const struct got_error *err = NULL;
79 bed00385 2022-02-23 stsp int elapsed = 0;
82 bed00385 2022-02-23 stsp err = got_ratelimit_check(&elapsed, rl);
83 bed00385 2022-02-23 stsp if (err || !elapsed)
87 f8a36e22 2021-08-26 stsp if (imsg_compose(ibuf, GOT_IMSG_SEND_UPLOAD_PROGRESS, 0, 0, -1,
88 f8a36e22 2021-08-26 stsp &bytes, sizeof(bytes)) == -1)
89 f8a36e22 2021-08-26 stsp return got_error_from_errno(
90 f8a36e22 2021-08-26 stsp "imsg_compose SEND_UPLOAD_PROGRESS");
92 f8a36e22 2021-08-26 stsp return got_privsep_flush_imsg(ibuf);
95 f8a36e22 2021-08-26 stsp static const struct got_error *
96 f8a36e22 2021-08-26 stsp send_pack_request(struct imsgbuf *ibuf)
98 f8a36e22 2021-08-26 stsp if (imsg_compose(ibuf, GOT_IMSG_SEND_PACK_REQUEST, 0, 0, -1,
99 f8a36e22 2021-08-26 stsp NULL, 0) == -1)
100 f8a36e22 2021-08-26 stsp return got_error_from_errno("imsg_compose SEND_PACK_REQUEST");
101 f8a36e22 2021-08-26 stsp return got_privsep_flush_imsg(ibuf);
104 f8a36e22 2021-08-26 stsp static const struct got_error *
105 f8a36e22 2021-08-26 stsp send_done(struct imsgbuf *ibuf)
107 f8a36e22 2021-08-26 stsp if (imsg_compose(ibuf, GOT_IMSG_SEND_DONE, 0, 0, -1, NULL, 0) == -1)
108 f8a36e22 2021-08-26 stsp return got_error_from_errno("imsg_compose SEND_DONE");
109 f8a36e22 2021-08-26 stsp return got_privsep_flush_imsg(ibuf);
112 f8a36e22 2021-08-26 stsp static const struct got_error *
113 f8a36e22 2021-08-26 stsp recv_packfd(int *packfd, struct imsgbuf *ibuf)
115 f8a36e22 2021-08-26 stsp const struct got_error *err;
116 f8a36e22 2021-08-26 stsp struct imsg imsg;
118 f8a36e22 2021-08-26 stsp *packfd = -1;
120 f8a36e22 2021-08-26 stsp err = got_privsep_recv_imsg(&imsg, ibuf, 0);
122 f8a36e22 2021-08-26 stsp return err;
124 f8a36e22 2021-08-26 stsp if (imsg.hdr.type == GOT_IMSG_STOP) {
125 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_CANCELLED);
129 f8a36e22 2021-08-26 stsp if (imsg.hdr.type != GOT_IMSG_SEND_PACKFD) {
130 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
134 f8a36e22 2021-08-26 stsp if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
135 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
139 f8a36e22 2021-08-26 stsp *packfd = imsg.fd;
141 f8a36e22 2021-08-26 stsp imsg_free(&imsg);
142 f8a36e22 2021-08-26 stsp return err;
145 f8a36e22 2021-08-26 stsp static const struct got_error *
146 f8a36e22 2021-08-26 stsp send_pack_file(int sendfd, int packfd, struct imsgbuf *ibuf)
148 f8a36e22 2021-08-26 stsp const struct got_error *err;
149 f8a36e22 2021-08-26 stsp unsigned char buf[8192];
151 f8a36e22 2021-08-26 stsp off_t wtotal = 0;
152 bed00385 2022-02-23 stsp struct got_ratelimit rl;
154 f8a36e22 2021-08-26 stsp if (lseek(packfd, 0L, SEEK_SET) == -1)
155 f8a36e22 2021-08-26 stsp return got_error_from_errno("lseek");
157 bed00385 2022-02-23 stsp got_ratelimit_init(&rl, 0, 500);
160 f8a36e22 2021-08-26 stsp r = read(packfd, buf, sizeof(buf));
161 f8a36e22 2021-08-26 stsp if (r == -1)
162 f8a36e22 2021-08-26 stsp return got_error_from_errno("read");
163 f8a36e22 2021-08-26 stsp if (r == 0)
165 15f404b1 2022-10-31 stsp err = got_poll_write_full(sendfd, buf, r);
167 15f404b1 2022-10-31 stsp return NULL;
168 15f404b1 2022-10-31 stsp wtotal += r;
169 bed00385 2022-02-23 stsp err = send_upload_progress(ibuf, wtotal, &rl);
171 f8a36e22 2021-08-26 stsp return err;
174 bed00385 2022-02-23 stsp return send_upload_progress(ibuf, wtotal, NULL);
177 f8a36e22 2021-08-26 stsp static const struct got_error *
178 f8a36e22 2021-08-26 stsp send_error(const char *buf, size_t len)
180 f8a36e22 2021-08-26 stsp static char msg[1024];
183 f8a36e22 2021-08-26 stsp for (i = 0; i < len && i < sizeof(msg) - 1; i++) {
184 f8a36e22 2021-08-26 stsp if (!isprint(buf[i]))
185 f8a36e22 2021-08-26 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
186 f8a36e22 2021-08-26 stsp "non-printable error message received from server");
187 f8a36e22 2021-08-26 stsp msg[i] = buf[i];
189 f8a36e22 2021-08-26 stsp msg[i] = '\0';
190 f8a36e22 2021-08-26 stsp return got_error_msg(GOT_ERR_SEND_FAILED, msg);
193 f8a36e22 2021-08-26 stsp static const struct got_error *
194 f8a36e22 2021-08-26 stsp send_their_ref(struct imsgbuf *ibuf, struct got_object_id *refid,
195 f8a36e22 2021-08-26 stsp const char *refname)
197 f8a36e22 2021-08-26 stsp struct ibuf *wbuf;
198 f8a36e22 2021-08-26 stsp size_t len, reflen = strlen(refname);
200 f8a36e22 2021-08-26 stsp len = sizeof(struct got_imsg_send_remote_ref) + reflen;
201 f8a36e22 2021-08-26 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
202 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
204 f8a36e22 2021-08-26 stsp wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REMOTE_REF, 0, 0, len);
205 f8a36e22 2021-08-26 stsp if (wbuf == NULL)
206 f8a36e22 2021-08-26 stsp return got_error_from_errno("imsg_create SEND_REMOTE_REF");
208 f8a36e22 2021-08-26 stsp /* Keep in sync with struct got_imsg_send_remote_ref definition! */
209 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refid->sha1, SHA1_DIGEST_LENGTH) == -1)
210 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REMOTE_REF");
211 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &reflen, sizeof(reflen)) == -1)
212 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REMOTE_REF");
213 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refname, reflen) == -1)
214 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REMOTE_REF");
216 f8a36e22 2021-08-26 stsp wbuf->fd = -1;
217 f8a36e22 2021-08-26 stsp imsg_close(ibuf, wbuf);
218 f8a36e22 2021-08-26 stsp return got_privsep_flush_imsg(ibuf);
221 f8a36e22 2021-08-26 stsp static const struct got_error *
222 f8a36e22 2021-08-26 stsp send_ref_status(struct imsgbuf *ibuf, const char *refname, int success,
223 f8a36e22 2021-08-26 stsp struct got_pathlist_head *refs, struct got_pathlist_head *delete_refs)
225 f8a36e22 2021-08-26 stsp struct ibuf *wbuf;
226 f8a36e22 2021-08-26 stsp size_t len, reflen = strlen(refname);
227 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
228 f8a36e22 2021-08-26 stsp int ref_valid = 0;
231 f8a36e22 2021-08-26 stsp eol = strchr(refname, '\n');
232 f8a36e22 2021-08-26 stsp if (eol == NULL) {
233 f8a36e22 2021-08-26 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
234 f8a36e22 2021-08-26 stsp "unexpected message from server");
236 f8a36e22 2021-08-26 stsp *eol = '\0';
238 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, refs, entry) {
239 f8a36e22 2021-08-26 stsp if (strcmp(refname, pe->path) == 0) {
240 f8a36e22 2021-08-26 stsp ref_valid = 1;
244 f8a36e22 2021-08-26 stsp if (!ref_valid) {
245 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, delete_refs, entry) {
246 f8a36e22 2021-08-26 stsp if (strcmp(refname, pe->path) == 0) {
247 f8a36e22 2021-08-26 stsp ref_valid = 1;
252 f8a36e22 2021-08-26 stsp if (!ref_valid) {
253 f8a36e22 2021-08-26 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
254 f8a36e22 2021-08-26 stsp "unexpected message from server");
257 f8a36e22 2021-08-26 stsp len = sizeof(struct got_imsg_send_ref_status) + reflen;
258 f8a36e22 2021-08-26 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
259 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
261 f8a36e22 2021-08-26 stsp wbuf = imsg_create(ibuf, GOT_IMSG_SEND_REF_STATUS,
262 f8a36e22 2021-08-26 stsp 0, 0, len);
263 f8a36e22 2021-08-26 stsp if (wbuf == NULL)
264 f8a36e22 2021-08-26 stsp return got_error_from_errno("imsg_create SEND_REF_STATUS");
266 f8a36e22 2021-08-26 stsp /* Keep in sync with struct got_imsg_send_ref_status definition! */
267 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &success, sizeof(success)) == -1)
268 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REF_STATUS");
269 1453347d 2022-05-19 stsp if (imsg_add(wbuf, &reflen, sizeof(reflen)) == -1)
270 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REF_STATUS");
271 1453347d 2022-05-19 stsp if (imsg_add(wbuf, refname, reflen) == -1)
272 1453347d 2022-05-19 stsp return got_error_from_errno("imsg_add SEND_REF_STATUS");
274 f8a36e22 2021-08-26 stsp wbuf->fd = -1;
275 f8a36e22 2021-08-26 stsp imsg_close(ibuf, wbuf);
276 f8a36e22 2021-08-26 stsp return got_privsep_flush_imsg(ibuf);
279 f8a36e22 2021-08-26 stsp static const struct got_error *
280 f8a36e22 2021-08-26 stsp describe_refchange(int *n, int *sent_my_capabilites,
281 f8a36e22 2021-08-26 stsp const char *my_capabilities, char *buf, size_t bufsize,
282 f8a36e22 2021-08-26 stsp const char *refname, const char *old_hashstr, const char *new_hashstr)
284 f8a36e22 2021-08-26 stsp *n = snprintf(buf, bufsize, "%s %s %s",
285 f8a36e22 2021-08-26 stsp old_hashstr, new_hashstr, refname);
286 438d0cc3 2022-08-16 op if (*n < 0 || (size_t)*n >= bufsize)
287 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
290 f8a36e22 2021-08-26 stsp * We must announce our capabilities along with the first
291 f8a36e22 2021-08-26 stsp * reference. Unfortunately, the protocol requires an embedded
292 f8a36e22 2021-08-26 stsp * NUL as a separator between reference name and capabilities,
293 f8a36e22 2021-08-26 stsp * which we have to deal with here.
294 f8a36e22 2021-08-26 stsp * It also requires a linefeed for terminating packet data.
296 f8a36e22 2021-08-26 stsp if (!*sent_my_capabilites && my_capabilities != NULL) {
298 f8a36e22 2021-08-26 stsp if (*n >= bufsize - 1)
299 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
300 f8a36e22 2021-08-26 stsp m = snprintf(buf + *n + 1, /* offset after '\0' */
301 f8a36e22 2021-08-26 stsp bufsize - (*n + 1), "%s\n", my_capabilities);
302 438d0cc3 2022-08-16 op if (m < 0 || *n + m >= bufsize)
303 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
305 f8a36e22 2021-08-26 stsp *sent_my_capabilites = 1;
307 f8a36e22 2021-08-26 stsp *n = strlcat(buf, "\n", bufsize);
308 f8a36e22 2021-08-26 stsp if (*n >= bufsize)
309 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_NO_SPACE);
312 f8a36e22 2021-08-26 stsp return NULL;
315 f8a36e22 2021-08-26 stsp static const struct got_error *
316 f8a36e22 2021-08-26 stsp send_pack(int fd, struct got_pathlist_head *refs,
317 f8a36e22 2021-08-26 stsp struct got_pathlist_head *delete_refs, struct imsgbuf *ibuf)
319 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
320 77d7d3bb 2021-09-05 stsp char buf[GOT_PKT_MAX];
321 d58ddaf3 2022-03-17 naddy const unsigned char zero_id[SHA1_DIGEST_LENGTH] = { 0 };
322 f8a36e22 2021-08-26 stsp char old_hashstr[SHA1_DIGEST_STRING_LENGTH];
323 f8a36e22 2021-08-26 stsp char new_hashstr[SHA1_DIGEST_STRING_LENGTH];
324 f8a36e22 2021-08-26 stsp struct got_pathlist_head their_refs;
325 f8a36e22 2021-08-26 stsp int is_firstpkt = 1;
326 f8a36e22 2021-08-26 stsp int n, nsent = 0;
327 f8a36e22 2021-08-26 stsp int packfd = -1;
328 f8a36e22 2021-08-26 stsp char *id_str = NULL, *refname = NULL;
329 f8a36e22 2021-08-26 stsp struct got_object_id *id = NULL;
330 f8a36e22 2021-08-26 stsp char *server_capabilities = NULL, *my_capabilities = NULL;
331 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
332 f8a36e22 2021-08-26 stsp int sent_my_capabilites = 0;
334 f8a36e22 2021-08-26 stsp TAILQ_INIT(&their_refs);
336 f8a36e22 2021-08-26 stsp if (TAILQ_EMPTY(refs) && TAILQ_EMPTY(delete_refs))
337 f8a36e22 2021-08-26 stsp return got_error(GOT_ERR_SEND_EMPTY);
339 f8a36e22 2021-08-26 stsp while (1) {
340 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
343 f8a36e22 2021-08-26 stsp if (n == 0)
345 f8a36e22 2021-08-26 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
346 f8a36e22 2021-08-26 stsp err = send_error(&buf[4], n - 4);
349 e99d9267 2021-10-07 stsp free(id_str);
350 e99d9267 2021-10-07 stsp free(refname);
351 bd3d9e54 2021-09-05 stsp err = got_gitproto_parse_refline(&id_str, &refname,
352 bd3d9e54 2021-09-05 stsp &server_capabilities, buf, n);
355 f8a36e22 2021-08-26 stsp if (is_firstpkt) {
356 f8a36e22 2021-08-26 stsp if (chattygot && server_capabilities[0] != '\0')
357 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: server capabilities: %s\n",
358 f8a36e22 2021-08-26 stsp getprogname(), server_capabilities);
359 bd3d9e54 2021-09-05 stsp err = got_gitproto_match_capabilities(&my_capabilities,
360 bd3d9e54 2021-09-05 stsp NULL, server_capabilities, got_capabilities,
361 bd3d9e54 2021-09-05 stsp nitems(got_capabilities));
364 f8a36e22 2021-08-26 stsp if (chattygot)
365 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: my capabilities:%s\n",
366 f8a36e22 2021-08-26 stsp getprogname(), my_capabilities);
367 f8a36e22 2021-08-26 stsp is_firstpkt = 0;
369 f8a36e22 2021-08-26 stsp if (strstr(refname, "^{}")) {
370 f8a36e22 2021-08-26 stsp if (chattygot) {
371 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: ignoring %s\n",
372 f8a36e22 2021-08-26 stsp getprogname(), refname);
377 f8a36e22 2021-08-26 stsp id = malloc(sizeof(*id));
378 f8a36e22 2021-08-26 stsp if (id == NULL) {
379 f8a36e22 2021-08-26 stsp err = got_error_from_errno("malloc");
382 f8a36e22 2021-08-26 stsp if (!got_parse_sha1_digest(id->sha1, id_str)) {
383 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_BAD_OBJ_ID_STR);
386 f8a36e22 2021-08-26 stsp err = send_their_ref(ibuf, id, refname);
390 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&their_refs, refname, id);
391 eff56850 2022-07-21 florian if (err)
392 eff56850 2022-07-21 florian goto done;
394 f8a36e22 2021-08-26 stsp if (chattygot)
395 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: remote has %s %s\n",
396 f8a36e22 2021-08-26 stsp getprogname(), refname, id_str);
397 f8a36e22 2021-08-26 stsp free(id_str);
398 f8a36e22 2021-08-26 stsp id_str = NULL;
399 f8a36e22 2021-08-26 stsp refname = NULL; /* do not free; owned by their_refs */
400 f8a36e22 2021-08-26 stsp id = NULL; /* do not free; owned by their_refs */
403 f8a36e22 2021-08-26 stsp if (!TAILQ_EMPTY(delete_refs)) {
404 f8a36e22 2021-08-26 stsp if (my_capabilities == NULL ||
405 f8a36e22 2021-08-26 stsp strstr(my_capabilities, GOT_CAPA_DELETE_REFS) == NULL) {
406 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_CAPA_DELETE_REFS);
411 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, delete_refs, entry) {
412 f8a36e22 2021-08-26 stsp const char *refname = pe->path;
413 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *their_pe;
414 f8a36e22 2021-08-26 stsp struct got_object_id *their_id = NULL;
416 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(their_pe, &their_refs, entry) {
417 f8a36e22 2021-08-26 stsp const char *their_refname = their_pe->path;
418 f8a36e22 2021-08-26 stsp if (got_path_cmp(refname, their_refname,
419 f8a36e22 2021-08-26 stsp strlen(refname), strlen(their_refname)) == 0) {
420 f8a36e22 2021-08-26 stsp their_id = their_pe->data;
424 f8a36e22 2021-08-26 stsp if (their_id == NULL) {
425 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_NOT_REF,
426 f8a36e22 2021-08-26 stsp "%s does not exist in remote repository",
431 f8a36e22 2021-08-26 stsp got_sha1_digest_to_str(their_id->sha1, old_hashstr,
432 f8a36e22 2021-08-26 stsp sizeof(old_hashstr));
433 f8a36e22 2021-08-26 stsp got_sha1_digest_to_str(zero_id, new_hashstr,
434 f8a36e22 2021-08-26 stsp sizeof(new_hashstr));
435 f8a36e22 2021-08-26 stsp err = describe_refchange(&n, &sent_my_capabilites,
436 f8a36e22 2021-08-26 stsp my_capabilities, buf, sizeof(buf), refname,
437 f8a36e22 2021-08-26 stsp old_hashstr, new_hashstr);
440 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
443 f8a36e22 2021-08-26 stsp if (chattygot) {
444 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: deleting %s %s\n",
445 f8a36e22 2021-08-26 stsp getprogname(), refname, old_hashstr);
450 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, refs, entry) {
451 f8a36e22 2021-08-26 stsp const char *refname = pe->path;
452 f8a36e22 2021-08-26 stsp struct got_object_id *id = pe->data;
453 f8a36e22 2021-08-26 stsp struct got_object_id *their_id = NULL;
454 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *their_pe;
456 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(their_pe, &their_refs, entry) {
457 f8a36e22 2021-08-26 stsp const char *their_refname = their_pe->path;
458 f8a36e22 2021-08-26 stsp if (got_path_cmp(refname, their_refname,
459 f8a36e22 2021-08-26 stsp strlen(refname), strlen(their_refname)) == 0) {
460 f8a36e22 2021-08-26 stsp their_id = their_pe->data;
464 f8a36e22 2021-08-26 stsp if (their_id) {
465 f8a36e22 2021-08-26 stsp if (got_object_id_cmp(id, their_id) == 0) {
466 f8a36e22 2021-08-26 stsp if (chattygot) {
467 f8a36e22 2021-08-26 stsp fprintf(stderr,
468 f8a36e22 2021-08-26 stsp "%s: no change for %s\n",
469 f8a36e22 2021-08-26 stsp getprogname(), refname);
473 f8a36e22 2021-08-26 stsp got_sha1_digest_to_str(their_id->sha1, old_hashstr,
474 f8a36e22 2021-08-26 stsp sizeof(old_hashstr));
476 f8a36e22 2021-08-26 stsp got_sha1_digest_to_str(zero_id, old_hashstr,
477 f8a36e22 2021-08-26 stsp sizeof(old_hashstr));
479 f8a36e22 2021-08-26 stsp got_sha1_digest_to_str(id->sha1, new_hashstr,
480 f8a36e22 2021-08-26 stsp sizeof(new_hashstr));
481 f8a36e22 2021-08-26 stsp err = describe_refchange(&n, &sent_my_capabilites,
482 f8a36e22 2021-08-26 stsp my_capabilities, buf, sizeof(buf), refname,
483 f8a36e22 2021-08-26 stsp old_hashstr, new_hashstr);
486 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
489 f8a36e22 2021-08-26 stsp if (chattygot) {
490 f8a36e22 2021-08-26 stsp if (their_id) {
491 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: updating %s %s -> %s\n",
492 f8a36e22 2021-08-26 stsp getprogname(), refname, old_hashstr,
493 f8a36e22 2021-08-26 stsp new_hashstr);
495 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: creating %s %s\n",
496 f8a36e22 2021-08-26 stsp getprogname(), refname, new_hashstr);
501 f024663d 2021-09-05 stsp err = got_pkt_flushpkt(fd, chattygot);
505 f8a36e22 2021-08-26 stsp err = send_pack_request(ibuf);
509 f8a36e22 2021-08-26 stsp err = recv_packfd(&packfd, ibuf);
513 27b75514 2021-08-28 stsp if (packfd != -1) {
514 27b75514 2021-08-28 stsp err = send_pack_file(fd, packfd, ibuf);
519 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
522 f8a36e22 2021-08-26 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
523 f8a36e22 2021-08-26 stsp err = send_error(&buf[4], n - 4);
525 f8a36e22 2021-08-26 stsp } else if (n < 10 || strncmp(buf, "unpack ok\n", 10) != 0) {
526 f8a36e22 2021-08-26 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
527 f8a36e22 2021-08-26 stsp "unexpected message from server");
531 f8a36e22 2021-08-26 stsp while (nsent > 0) {
532 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
535 f8a36e22 2021-08-26 stsp if (n < 3) {
536 f8a36e22 2021-08-26 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
537 f8a36e22 2021-08-26 stsp "unexpected message from server");
539 13b2bc37 2022-10-23 stsp } else if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
540 13b2bc37 2022-10-23 stsp err = send_error(&buf[4], n - 4);
542 f8a36e22 2021-08-26 stsp } else if (strncmp(buf, "ok ", 3) == 0) {
543 f8a36e22 2021-08-26 stsp err = send_ref_status(ibuf, buf + 3, 1,
544 abc59930 2021-09-05 naddy refs, delete_refs);
547 f8a36e22 2021-08-26 stsp } else if (strncmp(buf, "ng ", 3) == 0) {
548 f8a36e22 2021-08-26 stsp err = send_ref_status(ibuf, buf + 3, 0,
549 f8a36e22 2021-08-26 stsp refs, delete_refs);
553 f8a36e22 2021-08-26 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
554 f8a36e22 2021-08-26 stsp "unexpected message from server");
560 f8a36e22 2021-08-26 stsp err = send_done(ibuf);
562 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &their_refs, entry) {
563 f8a36e22 2021-08-26 stsp free((void *)pe->path);
564 f8a36e22 2021-08-26 stsp free(pe->data);
566 f8a36e22 2021-08-26 stsp got_pathlist_free(&their_refs);
567 f8a36e22 2021-08-26 stsp free(id_str);
569 f8a36e22 2021-08-26 stsp free(refname);
570 f8a36e22 2021-08-26 stsp free(server_capabilities);
571 f8a36e22 2021-08-26 stsp return err;
575 f8a36e22 2021-08-26 stsp main(int argc, char **argv)
577 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
578 030daac8 2021-09-25 stsp int sendfd;
579 f8a36e22 2021-08-26 stsp struct imsgbuf ibuf;
580 f8a36e22 2021-08-26 stsp struct imsg imsg;
581 f8a36e22 2021-08-26 stsp struct got_pathlist_head refs;
582 f8a36e22 2021-08-26 stsp struct got_pathlist_head delete_refs;
583 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
584 f8a36e22 2021-08-26 stsp struct got_imsg_send_request send_req;
585 f8a36e22 2021-08-26 stsp struct got_imsg_send_ref href;
586 030daac8 2021-09-25 stsp size_t datalen, i;
588 f8a36e22 2021-08-26 stsp static int attached;
589 f8a36e22 2021-08-26 stsp while (!attached)
593 f8a36e22 2021-08-26 stsp TAILQ_INIT(&refs);
594 f8a36e22 2021-08-26 stsp TAILQ_INIT(&delete_refs);
596 f8a36e22 2021-08-26 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
597 f8a36e22 2021-08-26 stsp #ifndef PROFILE
598 f8a36e22 2021-08-26 stsp /* revoke access to most system calls */
599 f8a36e22 2021-08-26 stsp if (pledge("stdio recvfd", NULL) == -1) {
600 f8a36e22 2021-08-26 stsp err = got_error_from_errno("pledge");
601 f8a36e22 2021-08-26 stsp got_privsep_send_error(&ibuf, err);
605 f8a36e22 2021-08-26 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
606 f8a36e22 2021-08-26 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
607 f8a36e22 2021-08-26 stsp err = NULL;
610 f8a36e22 2021-08-26 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
612 f8a36e22 2021-08-26 stsp if (imsg.hdr.type != GOT_IMSG_SEND_REQUEST) {
613 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
616 f8a36e22 2021-08-26 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
617 f8a36e22 2021-08-26 stsp if (datalen < sizeof(send_req)) {
618 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
621 f8a36e22 2021-08-26 stsp memcpy(&send_req, imsg.data, sizeof(send_req));
622 f8a36e22 2021-08-26 stsp sendfd = imsg.fd;
623 f8a36e22 2021-08-26 stsp imsg_free(&imsg);
625 f8a36e22 2021-08-26 stsp if (send_req.verbosity > 0)
626 f8a36e22 2021-08-26 stsp chattygot += send_req.verbosity;
628 f8a36e22 2021-08-26 stsp for (i = 0; i < send_req.nrefs; i++) {
629 f8a36e22 2021-08-26 stsp struct got_object_id *id;
630 f8a36e22 2021-08-26 stsp char *refname;
632 f8a36e22 2021-08-26 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
633 f8a36e22 2021-08-26 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
634 f8a36e22 2021-08-26 stsp err = NULL;
637 f8a36e22 2021-08-26 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
639 f8a36e22 2021-08-26 stsp if (imsg.hdr.type != GOT_IMSG_SEND_REF) {
640 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
643 f8a36e22 2021-08-26 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
644 f8a36e22 2021-08-26 stsp if (datalen < sizeof(href)) {
645 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
648 f8a36e22 2021-08-26 stsp memcpy(&href, imsg.data, sizeof(href));
649 f8a36e22 2021-08-26 stsp if (datalen - sizeof(href) < href.name_len) {
650 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
653 f8a36e22 2021-08-26 stsp refname = malloc(href.name_len + 1);
654 f8a36e22 2021-08-26 stsp if (refname == NULL) {
655 f8a36e22 2021-08-26 stsp err = got_error_from_errno("malloc");
658 f8a36e22 2021-08-26 stsp memcpy(refname, imsg.data + sizeof(href), href.name_len);
659 f8a36e22 2021-08-26 stsp refname[href.name_len] = '\0';
662 f8a36e22 2021-08-26 stsp * Prevent sending of references that won't make any
663 f8a36e22 2021-08-26 stsp * sense outside the local repository's context.
665 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/got/", 9) == 0 ||
666 f8a36e22 2021-08-26 stsp strncmp(refname, "refs/remotes/", 13) == 0) {
667 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_BAD_REF,
668 f8a36e22 2021-08-26 stsp "%s", refname);
672 f8a36e22 2021-08-26 stsp id = malloc(sizeof(*id));
673 f8a36e22 2021-08-26 stsp if (id == NULL) {
674 f8a36e22 2021-08-26 stsp free(refname);
675 f8a36e22 2021-08-26 stsp err = got_error_from_errno("malloc");
678 f8a36e22 2021-08-26 stsp memcpy(id->sha1, href.id, SHA1_DIGEST_LENGTH);
679 f8a36e22 2021-08-26 stsp if (href.delete)
680 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&delete_refs, refname, id);
682 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&refs, refname, id);
684 f8a36e22 2021-08-26 stsp free(refname);
689 f8a36e22 2021-08-26 stsp imsg_free(&imsg);
692 f8a36e22 2021-08-26 stsp err = send_pack(sendfd, &refs, &delete_refs, &ibuf);
694 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &refs, entry) {
695 f8a36e22 2021-08-26 stsp free((char *)pe->path);
696 f8a36e22 2021-08-26 stsp free(pe->data);
698 f8a36e22 2021-08-26 stsp got_pathlist_free(&refs);
699 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &delete_refs, entry) {
700 f8a36e22 2021-08-26 stsp free((char *)pe->path);
701 f8a36e22 2021-08-26 stsp free(pe->data);
703 f8a36e22 2021-08-26 stsp got_pathlist_free(&delete_refs);
704 f8a36e22 2021-08-26 stsp if (sendfd != -1 && close(sendfd) == -1 && err == NULL)
705 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
706 f8a36e22 2021-08-26 stsp if (err != NULL && err->code != GOT_ERR_CANCELLED) {
707 f8a36e22 2021-08-26 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
708 f8a36e22 2021-08-26 stsp got_privsep_send_error(&ibuf, err);
