2 f8a36e22 2021-08-26 stsp * Copyright (c) 2018, 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/stat.h>
20 f8a36e22 2021-08-26 stsp #include <sys/queue.h>
21 f8a36e22 2021-08-26 stsp #include <sys/uio.h>
22 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
23 f8a36e22 2021-08-26 stsp #include <sys/wait.h>
24 f8a36e22 2021-08-26 stsp #include <sys/resource.h>
25 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
27 f8a36e22 2021-08-26 stsp #include <endian.h>
28 f8a36e22 2021-08-26 stsp #include <errno.h>
29 f8a36e22 2021-08-26 stsp #include <err.h>
30 f8a36e22 2021-08-26 stsp #include <fcntl.h>
31 f8a36e22 2021-08-26 stsp #include <stdio.h>
32 f8a36e22 2021-08-26 stsp #include <stdlib.h>
33 f8a36e22 2021-08-26 stsp #include <string.h>
34 f8a36e22 2021-08-26 stsp #include <stdint.h>
35 f8a36e22 2021-08-26 stsp #include <sha1.h>
36 f8a36e22 2021-08-26 stsp #include <unistd.h>
37 f8a36e22 2021-08-26 stsp #include <zlib.h>
38 f8a36e22 2021-08-26 stsp #include <ctype.h>
39 f8a36e22 2021-08-26 stsp #include <limits.h>
40 f8a36e22 2021-08-26 stsp #include <imsg.h>
41 f8a36e22 2021-08-26 stsp #include <time.h>
42 f8a36e22 2021-08-26 stsp #include <uuid.h>
43 f8a36e22 2021-08-26 stsp #include <netdb.h>
44 f8a36e22 2021-08-26 stsp #include <netinet/in.h>
46 f8a36e22 2021-08-26 stsp #include "got_error.h"
47 f8a36e22 2021-08-26 stsp #include "got_reference.h"
48 f8a36e22 2021-08-26 stsp #include "got_repository.h"
49 f8a36e22 2021-08-26 stsp #include "got_path.h"
50 f8a36e22 2021-08-26 stsp #include "got_cancel.h"
51 f8a36e22 2021-08-26 stsp #include "got_worktree.h"
52 f8a36e22 2021-08-26 stsp #include "got_object.h"
53 f8a36e22 2021-08-26 stsp #include "got_opentemp.h"
54 f8a36e22 2021-08-26 stsp #include "got_send.h"
55 f8a36e22 2021-08-26 stsp #include "got_repository_admin.h"
56 f8a36e22 2021-08-26 stsp #include "got_commit_graph.h"
58 f8a36e22 2021-08-26 stsp #include "got_lib_delta.h"
59 f8a36e22 2021-08-26 stsp #include "got_lib_inflate.h"
60 f8a36e22 2021-08-26 stsp #include "got_lib_object.h"
61 f8a36e22 2021-08-26 stsp #include "got_lib_object_parse.h"
62 f8a36e22 2021-08-26 stsp #include "got_lib_object_create.h"
63 f8a36e22 2021-08-26 stsp #include "got_lib_pack.h"
64 f8a36e22 2021-08-26 stsp #include "got_lib_sha1.h"
65 f8a36e22 2021-08-26 stsp #include "got_lib_privsep.h"
66 f8a36e22 2021-08-26 stsp #include "got_lib_object_cache.h"
67 f8a36e22 2021-08-26 stsp #include "got_lib_repository.h"
68 f8a36e22 2021-08-26 stsp #include "got_lib_pack_create.h"
70 f8a36e22 2021-08-26 stsp #ifndef nitems
71 f8a36e22 2021-08-26 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
74 f8a36e22 2021-08-26 stsp #ifndef ssizeof
75 f8a36e22 2021-08-26 stsp #define ssizeof(_x) ((ssize_t)(sizeof(_x)))
79 f8a36e22 2021-08-26 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
82 f8a36e22 2021-08-26 stsp static const struct got_error *
83 f8a36e22 2021-08-26 stsp dial_ssh(pid_t *sendpid, int *sendfd, const char *host, const char *port,
84 f8a36e22 2021-08-26 stsp const char *path, const char *direction, int verbosity)
86 f8a36e22 2021-08-26 stsp const struct got_error *error = NULL;
87 f8a36e22 2021-08-26 stsp int pid, pfd[2];
88 f8a36e22 2021-08-26 stsp char cmd[64];
89 f8a36e22 2021-08-26 stsp char *argv[11];
90 f8a36e22 2021-08-26 stsp int i = 0, j;
92 f8a36e22 2021-08-26 stsp *sendpid = -1;
93 f8a36e22 2021-08-26 stsp *sendfd = -1;
95 f8a36e22 2021-08-26 stsp argv[i++] = GOT_SEND_PATH_SSH;
96 f8a36e22 2021-08-26 stsp if (port != NULL) {
97 f8a36e22 2021-08-26 stsp argv[i++] = "-p";
98 f8a36e22 2021-08-26 stsp argv[i++] = (char *)port;
100 f8a36e22 2021-08-26 stsp if (verbosity == -1) {
101 f8a36e22 2021-08-26 stsp argv[i++] = "-q";
103 f8a36e22 2021-08-26 stsp /* ssh(1) allows up to 3 "-v" options. */
104 f8a36e22 2021-08-26 stsp for (j = 0; j < MIN(3, verbosity); j++)
105 f8a36e22 2021-08-26 stsp argv[i++] = "-v";
107 f8a36e22 2021-08-26 stsp argv[i++] = "--";
108 f8a36e22 2021-08-26 stsp argv[i++] = (char *)host;
109 f8a36e22 2021-08-26 stsp argv[i++] = (char *)cmd;
110 f8a36e22 2021-08-26 stsp argv[i++] = (char *)path;
111 f8a36e22 2021-08-26 stsp argv[i++] = NULL;
113 f8a36e22 2021-08-26 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pfd) == -1)
114 f8a36e22 2021-08-26 stsp return got_error_from_errno("socketpair");
116 f8a36e22 2021-08-26 stsp pid = fork();
117 f8a36e22 2021-08-26 stsp if (pid == -1) {
118 f8a36e22 2021-08-26 stsp error = got_error_from_errno("fork");
119 f8a36e22 2021-08-26 stsp close(pfd[0]);
120 f8a36e22 2021-08-26 stsp close(pfd[1]);
121 f8a36e22 2021-08-26 stsp return error;
122 f8a36e22 2021-08-26 stsp } else if (pid == 0) {
124 f8a36e22 2021-08-26 stsp if (close(pfd[1]) == -1)
125 f8a36e22 2021-08-26 stsp err(1, "close");
126 f8a36e22 2021-08-26 stsp if (dup2(pfd[0], 0) == -1)
127 f8a36e22 2021-08-26 stsp err(1, "dup2");
128 f8a36e22 2021-08-26 stsp if (dup2(pfd[0], 1) == -1)
129 f8a36e22 2021-08-26 stsp err(1, "dup2");
130 f8a36e22 2021-08-26 stsp n = snprintf(cmd, sizeof(cmd), "git-%s-pack", direction);
131 f8a36e22 2021-08-26 stsp if (n < 0 || n >= ssizeof(cmd))
132 f8a36e22 2021-08-26 stsp err(1, "snprintf");
133 f8a36e22 2021-08-26 stsp if (execv(GOT_SEND_PATH_SSH, argv) == -1)
134 f8a36e22 2021-08-26 stsp err(1, "execv");
135 f8a36e22 2021-08-26 stsp abort(); /* not reached */
137 f8a36e22 2021-08-26 stsp if (close(pfd[0]) == -1)
138 f8a36e22 2021-08-26 stsp return got_error_from_errno("close");
139 f8a36e22 2021-08-26 stsp *sendpid = pid;
140 f8a36e22 2021-08-26 stsp *sendfd = pfd[1];
141 f8a36e22 2021-08-26 stsp return NULL;
145 f8a36e22 2021-08-26 stsp static const struct got_error *
146 f8a36e22 2021-08-26 stsp dial_git(int *sendfd, const char *host, const char *port, const char *path,
147 f8a36e22 2021-08-26 stsp const char *direction)
149 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
150 f8a36e22 2021-08-26 stsp struct addrinfo hints, *servinfo, *p;
151 f8a36e22 2021-08-26 stsp char *cmd = NULL;
152 f8a36e22 2021-08-26 stsp int fd = -1, len, r, eaicode;
154 f8a36e22 2021-08-26 stsp *sendfd = -1;
156 f8a36e22 2021-08-26 stsp if (port == NULL)
157 f8a36e22 2021-08-26 stsp port = GOT_DEFAULT_GIT_PORT_STR;
159 f8a36e22 2021-08-26 stsp memset(&hints, 0, sizeof hints);
160 f8a36e22 2021-08-26 stsp hints.ai_family = AF_UNSPEC;
161 f8a36e22 2021-08-26 stsp hints.ai_socktype = SOCK_STREAM;
162 f8a36e22 2021-08-26 stsp eaicode = getaddrinfo(host, port, &hints, &servinfo);
163 f8a36e22 2021-08-26 stsp if (eaicode) {
164 f8a36e22 2021-08-26 stsp char msg[512];
165 f8a36e22 2021-08-26 stsp snprintf(msg, sizeof(msg), "%s: %s", host,
166 f8a36e22 2021-08-26 stsp gai_strerror(eaicode));
167 f8a36e22 2021-08-26 stsp return got_error_msg(GOT_ERR_ADDRINFO, msg);
170 f8a36e22 2021-08-26 stsp for (p = servinfo; p != NULL; p = p->ai_next) {
171 f8a36e22 2021-08-26 stsp if ((fd = socket(p->ai_family, p->ai_socktype,
172 f8a36e22 2021-08-26 stsp p->ai_protocol)) == -1)
174 f8a36e22 2021-08-26 stsp if (connect(fd, p->ai_addr, p->ai_addrlen) == 0) {
175 f8a36e22 2021-08-26 stsp err = NULL;
178 f8a36e22 2021-08-26 stsp err = got_error_from_errno("connect");
181 f8a36e22 2021-08-26 stsp if (p == NULL)
184 f8a36e22 2021-08-26 stsp if (asprintf(&cmd, "git-%s-pack %s", direction, path) == -1) {
185 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
188 f8a36e22 2021-08-26 stsp len = 4 + strlen(cmd) + 1 + strlen("host=") + strlen(host) + 1;
189 f8a36e22 2021-08-26 stsp r = dprintf(fd, "%04x%s%chost=%s%c", len, cmd, '\0', host, '\0');
191 f8a36e22 2021-08-26 stsp err = got_error_from_errno("dprintf");
195 f8a36e22 2021-08-26 stsp if (fd != -1)
198 f8a36e22 2021-08-26 stsp *sendfd = fd;
199 f8a36e22 2021-08-26 stsp return err;
202 f8a36e22 2021-08-26 stsp const struct got_error *
203 f8a36e22 2021-08-26 stsp got_send_connect(pid_t *sendpid, int *sendfd, const char *proto,
204 f8a36e22 2021-08-26 stsp const char *host, const char *port, const char *server_path, int verbosity)
206 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
208 f8a36e22 2021-08-26 stsp *sendpid = -1;
209 f8a36e22 2021-08-26 stsp *sendfd = -1;
211 f8a36e22 2021-08-26 stsp if (strcmp(proto, "ssh") == 0 || strcmp(proto, "git+ssh") == 0)
212 f8a36e22 2021-08-26 stsp err = dial_ssh(sendpid, sendfd, host, port, server_path,
213 f8a36e22 2021-08-26 stsp "receive", verbosity);
214 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "git") == 0)
215 f8a36e22 2021-08-26 stsp err = dial_git(sendfd, host, port, server_path, "receive");
216 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "http") == 0 || strcmp(proto, "git+http") == 0)
217 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_NOT_IMPL);
219 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_BAD_PROTO);
220 f8a36e22 2021-08-26 stsp return err;
223 f8a36e22 2021-08-26 stsp struct pack_progress_arg {
224 f8a36e22 2021-08-26 stsp got_send_progress_cb progress_cb;
225 f8a36e22 2021-08-26 stsp void *progress_arg;
227 f8a36e22 2021-08-26 stsp off_t packfile_size;
228 f8a36e22 2021-08-26 stsp int ncommits;
229 f8a36e22 2021-08-26 stsp int nobj_total;
230 f8a36e22 2021-08-26 stsp int nobj_deltify;
231 f8a36e22 2021-08-26 stsp int nobj_written;
234 f8a36e22 2021-08-26 stsp static const struct got_error *
235 f8a36e22 2021-08-26 stsp pack_progress(void *arg, off_t packfile_size, int ncommits,
236 f8a36e22 2021-08-26 stsp int nobj_total, int nobj_deltify, int nobj_written)
238 f8a36e22 2021-08-26 stsp const struct got_error *err;
239 f8a36e22 2021-08-26 stsp struct pack_progress_arg *a = arg;
241 f8a36e22 2021-08-26 stsp err = a->progress_cb(a->progress_arg, packfile_size, ncommits,
242 f8a36e22 2021-08-26 stsp nobj_total, nobj_deltify, nobj_written, 0, NULL, 0);
244 f8a36e22 2021-08-26 stsp return err;
246 f8a36e22 2021-08-26 stsp a->packfile_size = packfile_size;
247 f8a36e22 2021-08-26 stsp a->ncommits = ncommits;
248 f8a36e22 2021-08-26 stsp a->nobj_total = nobj_total;
249 f8a36e22 2021-08-26 stsp a->nobj_deltify = nobj_deltify;
250 f8a36e22 2021-08-26 stsp a->nobj_written = nobj_written;
251 f8a36e22 2021-08-26 stsp return NULL;
254 f8a36e22 2021-08-26 stsp static const struct got_error *
255 f8a36e22 2021-08-26 stsp insert_ref(struct got_reflist_head *refs, const char *refname,
256 f8a36e22 2021-08-26 stsp struct got_repository *repo)
258 f8a36e22 2021-08-26 stsp const struct got_error *err;
259 f8a36e22 2021-08-26 stsp struct got_reference *ref;
260 f8a36e22 2021-08-26 stsp struct got_reflist_entry *new;
262 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, refname, 0);
264 f8a36e22 2021-08-26 stsp return err;
266 f8a36e22 2021-08-26 stsp err = got_reflist_insert(&new, refs, ref, got_ref_cmp_by_name, NULL);
267 f8a36e22 2021-08-26 stsp if (err || new == NULL /* duplicate */)
268 f8a36e22 2021-08-26 stsp got_ref_close(ref);
270 f8a36e22 2021-08-26 stsp return err;
273 f8a36e22 2021-08-26 stsp static const struct got_error *
274 f8a36e22 2021-08-26 stsp check_linear_ancestry(const char *refname, struct got_object_id *my_id,
275 f8a36e22 2021-08-26 stsp struct got_object_id *their_id, struct got_repository *repo,
276 f8a36e22 2021-08-26 stsp got_cancel_cb cancel_cb, void *cancel_arg)
278 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
279 f8a36e22 2021-08-26 stsp struct got_object_id *yca_id;
280 f8a36e22 2021-08-26 stsp int obj_type;
282 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, their_id);
284 f8a36e22 2021-08-26 stsp return err;
285 f8a36e22 2021-08-26 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT)
286 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_OBJ_TYPE,
287 f8a36e22 2021-08-26 stsp "bad object type on server for %s", refname);
289 f8a36e22 2021-08-26 stsp err = got_commit_graph_find_youngest_common_ancestor(&yca_id,
290 f8a36e22 2021-08-26 stsp my_id, their_id, repo, cancel_cb, cancel_arg);
292 f8a36e22 2021-08-26 stsp return err;
293 f8a36e22 2021-08-26 stsp if (yca_id == NULL)
294 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
297 f8a36e22 2021-08-26 stsp * Require a straight line of history between the two commits,
298 f8a36e22 2021-08-26 stsp * with their commit being older than my commit.
300 f8a36e22 2021-08-26 stsp * Non-linear situations such as this require a rebase:
302 f8a36e22 2021-08-26 stsp * (theirs) D F (mine)
310 f8a36e22 2021-08-26 stsp if (got_object_id_cmp(their_id, yca_id) != 0)
311 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
313 f8a36e22 2021-08-26 stsp free(yca_id);
314 f8a36e22 2021-08-26 stsp return err;
317 f8a36e22 2021-08-26 stsp static const struct got_error *
318 f8a36e22 2021-08-26 stsp realloc_ids(struct got_object_id ***ids, size_t *nalloc, size_t n)
320 f8a36e22 2021-08-26 stsp struct got_object_id **new;
321 f8a36e22 2021-08-26 stsp const size_t alloc_chunksz = 256;
323 535e07c7 2021-08-29 naddy if (*nalloc >= n)
324 f8a36e22 2021-08-26 stsp return NULL;
326 f8a36e22 2021-08-26 stsp new = recallocarray(*ids, *nalloc, *nalloc + alloc_chunksz,
327 f8a36e22 2021-08-26 stsp sizeof(struct got_object_id));
328 f8a36e22 2021-08-26 stsp if (new == NULL)
329 f8a36e22 2021-08-26 stsp return got_error_from_errno("recallocarray");
331 f8a36e22 2021-08-26 stsp *ids = new;
332 f8a36e22 2021-08-26 stsp *nalloc += alloc_chunksz;
333 f8a36e22 2021-08-26 stsp return NULL;
336 f8a36e22 2021-08-26 stsp static struct got_reference *
337 f8a36e22 2021-08-26 stsp find_ref(struct got_reflist_head *refs, const char *refname)
339 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
341 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, refs, entry) {
342 f8a36e22 2021-08-26 stsp if (got_path_cmp(got_ref_get_name(re->ref), refname,
343 f8a36e22 2021-08-26 stsp strlen(got_ref_get_name(re->ref)),
344 f8a36e22 2021-08-26 stsp strlen(refname)) == 0) {
345 f8a36e22 2021-08-26 stsp return re->ref;
349 f8a36e22 2021-08-26 stsp return NULL;
352 f8a36e22 2021-08-26 stsp static struct got_pathlist_entry *
353 f8a36e22 2021-08-26 stsp find_their_ref(struct got_pathlist_head *their_refs, const char *refname)
355 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
357 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, their_refs, entry) {
358 f8a36e22 2021-08-26 stsp const char *their_refname = pe->path;
359 f8a36e22 2021-08-26 stsp if (got_path_cmp(their_refname, refname,
360 f8a36e22 2021-08-26 stsp strlen(their_refname), strlen(refname)) == 0) {
365 f8a36e22 2021-08-26 stsp return NULL;
368 f8a36e22 2021-08-26 stsp static const struct got_error *
369 f8a36e22 2021-08-26 stsp get_remote_refname(char **remote_refname, const char *remote_name,
370 f8a36e22 2021-08-26 stsp const char *refname)
372 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/", 5) == 0)
373 f8a36e22 2021-08-26 stsp refname += 5;
374 f8a36e22 2021-08-26 stsp if (strncmp(refname, "heads/", 6) == 0)
375 f8a36e22 2021-08-26 stsp refname += 6;
377 f8a36e22 2021-08-26 stsp if (asprintf(remote_refname, "refs/remotes/%s/%s",
378 f8a36e22 2021-08-26 stsp remote_name, refname) == -1)
379 f8a36e22 2021-08-26 stsp return got_error_from_errno("asprintf");
381 f8a36e22 2021-08-26 stsp return NULL;
384 f8a36e22 2021-08-26 stsp static const struct got_error *
385 f8a36e22 2021-08-26 stsp update_remote_ref(struct got_reference *my_ref, const char *remote_name,
386 f8a36e22 2021-08-26 stsp struct got_repository *repo)
388 f8a36e22 2021-08-26 stsp const struct got_error *err, *unlock_err;
389 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
390 f8a36e22 2021-08-26 stsp struct got_reference *ref = NULL;
391 f8a36e22 2021-08-26 stsp char *remote_refname = NULL;
392 f8a36e22 2021-08-26 stsp int ref_locked = 0;
394 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
396 f8a36e22 2021-08-26 stsp return err;
398 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname, remote_name,
399 f8a36e22 2021-08-26 stsp got_ref_get_name(my_ref));
403 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 1 /* lock */);
405 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
407 f8a36e22 2021-08-26 stsp err = got_ref_alloc(&ref, remote_refname, my_id);
411 f8a36e22 2021-08-26 stsp ref_locked = 1;
412 f8a36e22 2021-08-26 stsp err = got_ref_change_ref(ref, my_id);
417 f8a36e22 2021-08-26 stsp err = got_ref_write(ref, repo);
420 f8a36e22 2021-08-26 stsp if (ref_locked) {
421 f8a36e22 2021-08-26 stsp unlock_err = got_ref_unlock(ref);
422 f8a36e22 2021-08-26 stsp if (unlock_err && err == NULL)
423 f8a36e22 2021-08-26 stsp err = unlock_err;
425 f8a36e22 2021-08-26 stsp got_ref_close(ref);
427 f8a36e22 2021-08-26 stsp free(my_id);
428 f8a36e22 2021-08-26 stsp free(remote_refname);
429 f8a36e22 2021-08-26 stsp return err;
432 f8a36e22 2021-08-26 stsp const struct got_error*
433 f8a36e22 2021-08-26 stsp got_send_pack(const char *remote_name, struct got_pathlist_head *branch_names,
434 f8a36e22 2021-08-26 stsp struct got_pathlist_head *tag_names,
435 f8a36e22 2021-08-26 stsp struct got_pathlist_head *delete_branches,
436 f8a36e22 2021-08-26 stsp int verbosity, int overwrite_refs, int sendfd,
437 f8a36e22 2021-08-26 stsp struct got_repository *repo, got_send_progress_cb progress_cb,
438 f8a36e22 2021-08-26 stsp void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
440 f8a36e22 2021-08-26 stsp int imsg_sendfds[2];
441 f8a36e22 2021-08-26 stsp int npackfd = -1, nsendfd = -1;
442 f8a36e22 2021-08-26 stsp int sendstatus, done = 0;
443 f8a36e22 2021-08-26 stsp const struct got_error *err;
444 f8a36e22 2021-08-26 stsp struct imsgbuf sendibuf;
445 f8a36e22 2021-08-26 stsp pid_t sendpid = -1;
446 f8a36e22 2021-08-26 stsp struct got_reflist_head refs;
447 f8a36e22 2021-08-26 stsp struct got_pathlist_head have_refs;
448 f8a36e22 2021-08-26 stsp struct got_pathlist_head their_refs;
449 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
450 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
451 f8a36e22 2021-08-26 stsp struct got_object_id **our_ids = NULL;
452 f8a36e22 2021-08-26 stsp struct got_object_id **their_ids = NULL;
453 f8a36e22 2021-08-26 stsp struct got_object_id *my_id = NULL;
454 f8a36e22 2021-08-26 stsp int i, nours = 0, ntheirs = 0;
455 f8a36e22 2021-08-26 stsp size_t nalloc_ours = 0, nalloc_theirs = 0;
456 27b75514 2021-08-28 stsp int refs_to_send = 0, refs_to_delete = 0;
457 f8a36e22 2021-08-26 stsp off_t bytes_sent = 0;
458 f8a36e22 2021-08-26 stsp struct pack_progress_arg ppa;
459 f8a36e22 2021-08-26 stsp uint8_t packsha1[SHA1_DIGEST_LENGTH];
460 f8a36e22 2021-08-26 stsp FILE *packfile = NULL;
462 f8a36e22 2021-08-26 stsp TAILQ_INIT(&refs);
463 f8a36e22 2021-08-26 stsp TAILQ_INIT(&have_refs);
464 f8a36e22 2021-08-26 stsp TAILQ_INIT(&their_refs);
466 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, branch_names, entry) {
467 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
468 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
470 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/heads/%s", branchname) == -1) {
471 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
474 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
477 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, branchname, repo);
483 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
484 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
485 f8a36e22 2021-08-26 stsp struct got_reference *ref;
486 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
487 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF, "%s",
488 f8a36e22 2021-08-26 stsp branchname);
491 f8a36e22 2021-08-26 stsp ref = find_ref(&refs, branchname);
493 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF,
494 f8a36e22 2021-08-26 stsp "changes on %s will be sent to server",
495 f8a36e22 2021-08-26 stsp branchname);
500 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, tag_names, entry) {
501 f8a36e22 2021-08-26 stsp const char *tagname = pe->path;
502 f8a36e22 2021-08-26 stsp if (strncmp(tagname, "refs/tags/", 10) != 0) {
504 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/tags/%s", tagname) == -1) {
505 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
508 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
511 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, tagname, repo);
517 f8a36e22 2021-08-26 stsp if (TAILQ_EMPTY(&refs) && TAILQ_EMPTY(delete_branches)) {
518 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_SEND_EMPTY);
522 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
523 f8a36e22 2021-08-26 stsp struct got_object_id *id;
524 f8a36e22 2021-08-26 stsp int obj_type;
526 f8a36e22 2021-08-26 stsp if (got_ref_is_symbolic(re->ref)) {
527 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
528 f8a36e22 2021-08-26 stsp "cannot send symbolic reference %s",
529 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref));
533 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
536 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, id);
540 f8a36e22 2021-08-26 stsp switch (obj_type) {
541 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_COMMIT:
542 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_TAG:
545 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
546 f8a36e22 2021-08-26 stsp "cannot send %s", got_ref_get_name(re->ref));
551 f8a36e22 2021-08-26 stsp packfile = got_opentemp();
552 f8a36e22 2021-08-26 stsp if (packfile == NULL) {
553 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_opentemp");
557 f8a36e22 2021-08-26 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_sendfds) == -1) {
558 f8a36e22 2021-08-26 stsp err = got_error_from_errno("socketpair");
562 f8a36e22 2021-08-26 stsp sendpid = fork();
563 f8a36e22 2021-08-26 stsp if (sendpid == -1) {
564 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fork");
566 f8a36e22 2021-08-26 stsp } else if (sendpid == 0){
567 f8a36e22 2021-08-26 stsp got_privsep_exec_child(imsg_sendfds,
568 f8a36e22 2021-08-26 stsp GOT_PATH_PROG_SEND_PACK, got_repo_get_path(repo));
571 f8a36e22 2021-08-26 stsp if (close(imsg_sendfds[1]) == -1) {
572 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
575 f8a36e22 2021-08-26 stsp imsg_init(&sendibuf, imsg_sendfds[0]);
576 f8a36e22 2021-08-26 stsp nsendfd = dup(sendfd);
577 f8a36e22 2021-08-26 stsp if (nsendfd == -1) {
578 f8a36e22 2021-08-26 stsp err = got_error_from_errno("dup");
583 f8a36e22 2021-08-26 stsp * Convert reflist to pathlist since the privsep layer
584 f8a36e22 2021-08-26 stsp * is linked into helper programs which lack reference.c.
586 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
587 f8a36e22 2021-08-26 stsp struct got_object_id *id;
588 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
591 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&have_refs,
592 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref), id);
596 f8a36e22 2021-08-26 stsp * Also prepare the array of our object IDs which
597 f8a36e22 2021-08-26 stsp * will be needed for generating a pack file.
599 535e07c7 2021-08-29 naddy err = realloc_ids(&our_ids, &nalloc_ours, nours + 1);
602 f8a36e22 2021-08-26 stsp our_ids[nours] = id;
606 f8a36e22 2021-08-26 stsp err = got_privsep_send_send_req(&sendibuf, nsendfd, &have_refs,
607 f8a36e22 2021-08-26 stsp delete_branches, verbosity);
610 f8a36e22 2021-08-26 stsp nsendfd = -1;
612 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_remote_refs(&their_refs, &sendibuf);
617 f8a36e22 2021-08-26 stsp * Process references reported by the server.
618 f8a36e22 2021-08-26 stsp * Push appropriate object IDs onto the "their IDs" array.
619 f8a36e22 2021-08-26 stsp * This array will be used to exclude objects which already
620 f8a36e22 2021-08-26 stsp * exist on the server from our pack file.
622 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &their_refs, entry) {
623 f8a36e22 2021-08-26 stsp const char *refname = pe->path;
624 f8a36e22 2021-08-26 stsp struct got_object_id *their_id = pe->data;
625 f8a36e22 2021-08-26 stsp int have_their_id;
626 f8a36e22 2021-08-26 stsp struct got_object *obj;
627 f8a36e22 2021-08-26 stsp struct got_reference *my_ref = NULL;
628 f8a36e22 2021-08-26 stsp int is_tag = 0;
630 f8a36e22 2021-08-26 stsp /* Don't blindly trust the server to send us valid names. */
631 f8a36e22 2021-08-26 stsp if (!got_ref_name_is_valid(refname))
635 f8a36e22 2021-08-26 stsp * Find out whether this is a reference we want to upload.
636 f8a36e22 2021-08-26 stsp * Otherwise we can still use this reference as a hint to
637 f8a36e22 2021-08-26 stsp * avoid uploading any objects the server already has.
639 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
640 f8a36e22 2021-08-26 stsp if (my_ref) {
641 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
644 f8a36e22 2021-08-26 stsp if (got_object_id_cmp(my_id, their_id) == 0) {
645 f8a36e22 2021-08-26 stsp free(my_id);
646 f8a36e22 2021-08-26 stsp my_id = NULL;
649 f8a36e22 2021-08-26 stsp refs_to_send++;
653 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/tags/", 10) == 0)
654 f8a36e22 2021-08-26 stsp is_tag = 1;
656 f8a36e22 2021-08-26 stsp /* Prevent tags from being overwritten by default. */
657 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref && is_tag) {
658 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_TAG_EXISTS,
659 f8a36e22 2021-08-26 stsp "%s", refname);
663 f8a36e22 2021-08-26 stsp /* Check if their object exists locally. */
664 f8a36e22 2021-08-26 stsp err = got_object_open(&obj, repo, their_id);
666 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NO_OBJ)
668 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref != NULL) {
669 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY,
670 f8a36e22 2021-08-26 stsp "%s", refname);
673 f8a36e22 2021-08-26 stsp have_their_id = 0;
675 f8a36e22 2021-08-26 stsp got_object_close(obj);
676 f8a36e22 2021-08-26 stsp have_their_id = 1;
679 535e07c7 2021-08-29 naddy err = realloc_ids(&their_ids, &nalloc_theirs, ntheirs + 1);
683 f8a36e22 2021-08-26 stsp if (have_their_id) {
684 f8a36e22 2021-08-26 stsp /* Enforce linear ancestry if required. */
685 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref && !is_tag) {
686 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
687 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
690 f8a36e22 2021-08-26 stsp err = check_linear_ancestry(refname, my_id,
691 f8a36e22 2021-08-26 stsp their_id, repo, cancel_cb, cancel_arg);
692 f8a36e22 2021-08-26 stsp free(my_id);
693 f8a36e22 2021-08-26 stsp my_id = NULL;
697 f8a36e22 2021-08-26 stsp /* Exclude any objects reachable via their ID. */
698 f8a36e22 2021-08-26 stsp their_ids[ntheirs] = got_object_id_dup(their_id);
699 f8a36e22 2021-08-26 stsp if (their_ids[ntheirs] == NULL) {
700 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_object_id_dup");
704 f8a36e22 2021-08-26 stsp } else if (!is_tag) {
705 f8a36e22 2021-08-26 stsp char *remote_refname;
706 f8a36e22 2021-08-26 stsp struct got_reference *ref;
708 f8a36e22 2021-08-26 stsp * Exclude any objects which exist on the server
709 f8a36e22 2021-08-26 stsp * according to a locally cached remote reference.
711 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname,
712 f8a36e22 2021-08-26 stsp remote_name, refname);
715 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 0);
716 f8a36e22 2021-08-26 stsp free(remote_refname);
718 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
721 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&their_ids[ntheirs],
722 f8a36e22 2021-08-26 stsp repo, ref);
723 f8a36e22 2021-08-26 stsp got_ref_close(ref);
731 f8a36e22 2021-08-26 stsp /* Account for any new references we are going to upload. */
732 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
733 f8a36e22 2021-08-26 stsp if (find_their_ref(&their_refs,
734 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref)) == NULL)
735 f8a36e22 2021-08-26 stsp refs_to_send++;
738 1bd76734 2021-08-26 stsp /* Account for any existing references we are going to delete. */
739 1bd76734 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
740 1bd76734 2021-08-26 stsp const char *branchname = pe->path;
741 1bd76734 2021-08-26 stsp if (find_their_ref(&their_refs, branchname))
742 27b75514 2021-08-28 stsp refs_to_delete++;
745 27b75514 2021-08-28 stsp if (refs_to_send == 0 && refs_to_delete == 0) {
746 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
750 27b75514 2021-08-28 stsp if (refs_to_send > 0) {
751 27b75514 2021-08-28 stsp memset(&ppa, 0, sizeof(ppa));
752 27b75514 2021-08-28 stsp ppa.progress_cb = progress_cb;
753 27b75514 2021-08-28 stsp ppa.progress_arg = progress_arg;
754 27b75514 2021-08-28 stsp err = got_pack_create(packsha1, packfile, their_ids, ntheirs,
755 27b75514 2021-08-28 stsp our_ids, nours, repo, 0, 1, pack_progress, &ppa,
756 27b75514 2021-08-28 stsp cancel_cb, cancel_arg);
760 27b75514 2021-08-28 stsp if (fflush(packfile) == -1) {
761 27b75514 2021-08-28 stsp err = got_error_from_errno("fflush");
765 27b75514 2021-08-28 stsp npackfd = dup(fileno(packfile));
766 27b75514 2021-08-28 stsp if (npackfd == -1) {
767 27b75514 2021-08-28 stsp err = got_error_from_errno("dup");
770 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, npackfd);
771 27b75514 2021-08-28 stsp if (err != NULL)
773 27b75514 2021-08-28 stsp npackfd = -1;
775 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, -1);
776 27b75514 2021-08-28 stsp if (err != NULL)
780 f8a36e22 2021-08-26 stsp while (!done) {
781 f8a36e22 2021-08-26 stsp int success = 0;
782 f8a36e22 2021-08-26 stsp char *refname = NULL;
783 f8a36e22 2021-08-26 stsp off_t bytes_sent_cur = 0;
784 f8a36e22 2021-08-26 stsp if (cancel_cb) {
785 f8a36e22 2021-08-26 stsp err = (*cancel_cb)(cancel_arg);
789 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_progress(&done, &bytes_sent,
790 f8a36e22 2021-08-26 stsp &success, &refname, &sendibuf);
793 f8a36e22 2021-08-26 stsp if (refname && got_ref_name_is_valid(refname) && success &&
794 f8a36e22 2021-08-26 stsp strncmp(refname, "refs/tags/", 10) != 0) {
795 f8a36e22 2021-08-26 stsp struct got_reference *my_ref;
797 f8a36e22 2021-08-26 stsp * The server has accepted our changes.
798 f8a36e22 2021-08-26 stsp * Update our reference in refs/remotes/ accordingly.
800 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
801 f8a36e22 2021-08-26 stsp if (my_ref) {
802 f8a36e22 2021-08-26 stsp err = update_remote_ref(my_ref, remote_name,
808 f8a36e22 2021-08-26 stsp if (refname != NULL ||
809 f8a36e22 2021-08-26 stsp bytes_sent_cur != bytes_sent) {
810 f8a36e22 2021-08-26 stsp err = progress_cb(progress_arg, ppa.packfile_size,
811 f8a36e22 2021-08-26 stsp ppa.ncommits, ppa.nobj_total, ppa.nobj_deltify,
812 f8a36e22 2021-08-26 stsp ppa.nobj_written, bytes_sent,
813 f8a36e22 2021-08-26 stsp refname, success);
815 f8a36e22 2021-08-26 stsp free(refname);
818 f8a36e22 2021-08-26 stsp bytes_sent_cur = bytes_sent;
820 f8a36e22 2021-08-26 stsp free(refname);
823 f8a36e22 2021-08-26 stsp if (sendpid != -1) {
825 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
826 f8a36e22 2021-08-26 stsp if (waitpid(sendpid, &sendstatus, 0) == -1 && err == NULL)
827 f8a36e22 2021-08-26 stsp err = got_error_from_errno("waitpid");
829 f8a36e22 2021-08-26 stsp if (packfile && fclose(packfile) == EOF && err == NULL)
830 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fclose");
831 f8a36e22 2021-08-26 stsp if (nsendfd != -1 && close(nsendfd) == -1 && err == NULL)
832 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
833 f8a36e22 2021-08-26 stsp if (npackfd != -1 && close(npackfd) == -1 && err == NULL)
834 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
836 f8a36e22 2021-08-26 stsp got_ref_list_free(&refs);
837 f8a36e22 2021-08-26 stsp got_pathlist_free(&have_refs);
838 f8a36e22 2021-08-26 stsp got_pathlist_free(&their_refs);
839 f8a36e22 2021-08-26 stsp for (i = 0; i < nours; i++)
840 f8a36e22 2021-08-26 stsp free(our_ids[i]);
841 f8a36e22 2021-08-26 stsp free(our_ids);
842 f8a36e22 2021-08-26 stsp for (i = 0; i < ntheirs; i++)
843 f8a36e22 2021-08-26 stsp free(their_ids[i]);
844 f8a36e22 2021-08-26 stsp free(their_ids);
845 f8a36e22 2021-08-26 stsp free(my_id);
846 f8a36e22 2021-08-26 stsp return err;
