2 13b2bc37 2022-10-23 stsp * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
4 13b2bc37 2022-10-23 stsp * Permission to use, copy, modify, and distribute this software for any
5 13b2bc37 2022-10-23 stsp * purpose with or without fee is hereby granted, provided that the above
6 13b2bc37 2022-10-23 stsp * copyright notice and this permission notice appear in all copies.
8 13b2bc37 2022-10-23 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 13b2bc37 2022-10-23 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 13b2bc37 2022-10-23 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 13b2bc37 2022-10-23 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 13b2bc37 2022-10-23 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 13b2bc37 2022-10-23 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 13b2bc37 2022-10-23 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
18 13b2bc37 2022-10-23 stsp #include <sys/stat.h>
19 13b2bc37 2022-10-23 stsp #include <sys/tree.h>
20 13b2bc37 2022-10-23 stsp #include <sys/types.h>
22 13b2bc37 2022-10-23 stsp #include <event.h>
23 13b2bc37 2022-10-23 stsp #include <errno.h>
24 13b2bc37 2022-10-23 stsp #include <imsg.h>
25 13b2bc37 2022-10-23 stsp #include <signal.h>
26 13b2bc37 2022-10-23 stsp #include <siphash.h>
27 13b2bc37 2022-10-23 stsp #include <stdio.h>
28 13b2bc37 2022-10-23 stsp #include <stdlib.h>
29 13b2bc37 2022-10-23 stsp #include <string.h>
30 13b2bc37 2022-10-23 stsp #include <limits.h>
31 13b2bc37 2022-10-23 stsp #include <poll.h>
32 13b2bc37 2022-10-23 stsp #include <sha1.h>
33 5822e79e 2023-02-23 op #include <sha2.h>
34 13b2bc37 2022-10-23 stsp #include <unistd.h>
35 13b2bc37 2022-10-23 stsp #include <zlib.h>
37 13b2bc37 2022-10-23 stsp #include "buf.h"
39 13b2bc37 2022-10-23 stsp #include "got_error.h"
40 13b2bc37 2022-10-23 stsp #include "got_repository.h"
41 13b2bc37 2022-10-23 stsp #include "got_object.h"
42 13b2bc37 2022-10-23 stsp #include "got_reference.h"
43 13b2bc37 2022-10-23 stsp #include "got_path.h"
45 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
46 13b2bc37 2022-10-23 stsp #include "got_lib_delta_cache.h"
47 ae25a666 2023-02-23 op #include "got_lib_hash.h"
48 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
49 13b2bc37 2022-10-23 stsp #include "got_lib_object_cache.h"
50 9afa3de2 2023-04-04 stsp #include "got_lib_object_idset.h"
51 9afa3de2 2023-04-04 stsp #include "got_lib_object_parse.h"
52 13b2bc37 2022-10-23 stsp #include "got_lib_ratelimit.h"
53 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
54 13b2bc37 2022-10-23 stsp #include "got_lib_pack_index.h"
55 13b2bc37 2022-10-23 stsp #include "got_lib_repository.h"
56 13b2bc37 2022-10-23 stsp #include "got_lib_poll.h"
58 13b2bc37 2022-10-23 stsp #include "log.h"
59 13b2bc37 2022-10-23 stsp #include "gotd.h"
60 13b2bc37 2022-10-23 stsp #include "repo_write.h"
62 13b2bc37 2022-10-23 stsp #ifndef nitems
63 13b2bc37 2022-10-23 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
66 13b2bc37 2022-10-23 stsp static struct repo_write {
68 13b2bc37 2022-10-23 stsp const char *title;
69 13b2bc37 2022-10-23 stsp struct got_repository *repo;
70 13b2bc37 2022-10-23 stsp int *pack_fds;
71 13b2bc37 2022-10-23 stsp int *temp_fds;
72 ae7c1b78 2023-01-10 stsp int session_fd;
73 ae7c1b78 2023-01-10 stsp struct gotd_imsgev session_iev;
74 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_tag_namespaces;
75 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_branch_namespaces;
76 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_branches;
77 13b2bc37 2022-10-23 stsp } repo_write;
79 13b2bc37 2022-10-23 stsp struct gotd_ref_update {
80 13b2bc37 2022-10-23 stsp STAILQ_ENTRY(gotd_ref_update) entry;
81 13b2bc37 2022-10-23 stsp struct got_reference *ref;
82 13b2bc37 2022-10-23 stsp int ref_is_new;
83 9a8e357c 2023-01-28 op int delete_ref;
84 13b2bc37 2022-10-23 stsp struct got_object_id old_id;
85 13b2bc37 2022-10-23 stsp struct got_object_id new_id;
87 13b2bc37 2022-10-23 stsp STAILQ_HEAD(gotd_ref_updates, gotd_ref_update);
89 1a52c9bf 2022-12-30 stsp static struct repo_write_client {
90 13b2bc37 2022-10-23 stsp uint32_t id;
92 7fec5f4a 2022-10-28 stsp int pack_pipe;
93 13b2bc37 2022-10-23 stsp struct got_pack pack;
94 13b2bc37 2022-10-23 stsp uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
95 13b2bc37 2022-10-23 stsp int packidx_fd;
96 13b2bc37 2022-10-23 stsp struct gotd_ref_updates ref_updates;
97 13b2bc37 2022-10-23 stsp int nref_updates;
99 0ff2c315 2023-01-18 stsp int nref_new;
100 cc88020e 2023-04-11 stsp int nref_move;
101 1a52c9bf 2022-12-30 stsp } repo_write_client;
103 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigint_received;
104 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigterm_received;
106 13b2bc37 2022-10-23 stsp static void
107 13b2bc37 2022-10-23 stsp catch_sigint(int signo)
109 13b2bc37 2022-10-23 stsp sigint_received = 1;
112 13b2bc37 2022-10-23 stsp static void
113 13b2bc37 2022-10-23 stsp catch_sigterm(int signo)
115 13b2bc37 2022-10-23 stsp sigterm_received = 1;
118 13b2bc37 2022-10-23 stsp static const struct got_error *
119 13b2bc37 2022-10-23 stsp check_cancelled(void *arg)
121 13b2bc37 2022-10-23 stsp if (sigint_received || sigterm_received)
122 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CANCELLED);
124 13b2bc37 2022-10-23 stsp return NULL;
127 13b2bc37 2022-10-23 stsp static const struct got_error *
128 13b2bc37 2022-10-23 stsp send_peeled_tag_ref(struct got_reference *ref, struct got_object *obj,
129 13b2bc37 2022-10-23 stsp struct imsgbuf *ibuf)
131 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
132 13b2bc37 2022-10-23 stsp struct got_tag_object *tag;
133 13b2bc37 2022-10-23 stsp size_t namelen, len;
134 13b2bc37 2022-10-23 stsp char *peeled_refname = NULL;
135 13b2bc37 2022-10-23 stsp struct got_object_id *id;
136 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
138 13b2bc37 2022-10-23 stsp err = got_object_tag_open(&tag, repo_write.repo, obj);
140 13b2bc37 2022-10-23 stsp return err;
142 13b2bc37 2022-10-23 stsp if (asprintf(&peeled_refname, "%s^{}", got_ref_get_name(ref)) == -1) {
143 13b2bc37 2022-10-23 stsp err = got_error_from_errno("asprintf");
147 13b2bc37 2022-10-23 stsp id = got_object_tag_get_object_id(tag);
148 13b2bc37 2022-10-23 stsp namelen = strlen(peeled_refname);
150 13b2bc37 2022-10-23 stsp len = sizeof(struct gotd_imsg_ref) + namelen;
151 13b2bc37 2022-10-23 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
152 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_NO_SPACE);
156 13b2bc37 2022-10-23 stsp wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_WRITE,
157 13b2bc37 2022-10-23 stsp repo_write.pid, len);
158 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
159 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create REF");
163 13b2bc37 2022-10-23 stsp /* Keep in sync with struct gotd_imsg_ref definition. */
164 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
165 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
168 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1) {
169 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
172 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, peeled_refname, namelen) == -1) {
173 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
177 13b2bc37 2022-10-23 stsp imsg_close(ibuf, wbuf);
179 13b2bc37 2022-10-23 stsp got_object_tag_close(tag);
180 13b2bc37 2022-10-23 stsp return err;
183 13b2bc37 2022-10-23 stsp static const struct got_error *
184 13b2bc37 2022-10-23 stsp send_ref(struct got_reference *ref, struct imsgbuf *ibuf)
186 13b2bc37 2022-10-23 stsp const struct got_error *err;
187 13b2bc37 2022-10-23 stsp const char *refname = got_ref_get_name(ref);
188 13b2bc37 2022-10-23 stsp size_t namelen;
189 13b2bc37 2022-10-23 stsp struct got_object_id *id = NULL;
190 13b2bc37 2022-10-23 stsp struct got_object *obj = NULL;
191 13b2bc37 2022-10-23 stsp size_t len;
192 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
194 13b2bc37 2022-10-23 stsp namelen = strlen(refname);
196 13b2bc37 2022-10-23 stsp len = sizeof(struct gotd_imsg_ref) + namelen;
197 13b2bc37 2022-10-23 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
198 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NO_SPACE);
200 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&id, repo_write.repo, ref);
202 13b2bc37 2022-10-23 stsp return err;
204 13b2bc37 2022-10-23 stsp wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_WRITE,
205 13b2bc37 2022-10-23 stsp repo_write.pid, len);
206 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
207 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create REF");
211 13b2bc37 2022-10-23 stsp /* Keep in sync with struct gotd_imsg_ref definition. */
212 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
213 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
214 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1)
215 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
216 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, refname, namelen) == -1)
217 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
219 13b2bc37 2022-10-23 stsp imsg_close(ibuf, wbuf);
221 13b2bc37 2022-10-23 stsp err = got_object_open(&obj, repo_write.repo, id);
224 13b2bc37 2022-10-23 stsp if (obj->type == GOT_OBJ_TYPE_TAG)
225 13b2bc37 2022-10-23 stsp err = send_peeled_tag_ref(ref, obj, ibuf);
228 13b2bc37 2022-10-23 stsp got_object_close(obj);
230 13b2bc37 2022-10-23 stsp return err;
233 13b2bc37 2022-10-23 stsp static const struct got_error *
234 1a52c9bf 2022-12-30 stsp list_refs(struct imsg *imsg)
236 13b2bc37 2022-10-23 stsp const struct got_error *err;
237 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
238 13b2bc37 2022-10-23 stsp struct got_reflist_head refs;
239 13b2bc37 2022-10-23 stsp struct got_reflist_entry *re;
240 13b2bc37 2022-10-23 stsp struct gotd_imsg_list_refs_internal ireq;
241 13b2bc37 2022-10-23 stsp size_t datalen;
242 13b2bc37 2022-10-23 stsp struct gotd_imsg_reflist irefs;
243 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
244 2c52c623 2024-01-30 op int client_fd;
246 13b2bc37 2022-10-23 stsp TAILQ_INIT(&refs);
248 2c52c623 2024-01-30 op client_fd = imsg_get_fd(imsg);
249 13b2bc37 2022-10-23 stsp if (client_fd == -1)
250 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
252 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
253 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
254 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
255 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
257 1a52c9bf 2022-12-30 stsp if (ireq.client_id == 0)
258 1a52c9bf 2022-12-30 stsp return got_error(GOT_ERR_CLIENT_ID);
259 1a52c9bf 2022-12-30 stsp if (client->id != 0) {
260 1a52c9bf 2022-12-30 stsp return got_error_msg(GOT_ERR_CLIENT_ID,
261 1a52c9bf 2022-12-30 stsp "duplicate list-refs request");
263 1a52c9bf 2022-12-30 stsp client->id = ireq.client_id;
264 1a52c9bf 2022-12-30 stsp client->fd = client_fd;
265 1a52c9bf 2022-12-30 stsp client->nref_updates = 0;
266 9a8e357c 2023-01-28 op client->nref_del = 0;
267 0ff2c315 2023-01-18 stsp client->nref_new = 0;
268 cc88020e 2023-04-11 stsp client->nref_move = 0;
270 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, client_fd);
272 13b2bc37 2022-10-23 stsp err = got_ref_list(&refs, repo_write.repo, "",
273 13b2bc37 2022-10-23 stsp got_ref_cmp_by_name, NULL);
275 13b2bc37 2022-10-23 stsp return err;
277 13b2bc37 2022-10-23 stsp memset(&irefs, 0, sizeof(irefs));
278 13b2bc37 2022-10-23 stsp TAILQ_FOREACH(re, &refs, entry) {
279 13b2bc37 2022-10-23 stsp struct got_object_id *id;
280 13b2bc37 2022-10-23 stsp int obj_type;
282 13b2bc37 2022-10-23 stsp if (got_ref_is_symbolic(re->ref))
285 13b2bc37 2022-10-23 stsp irefs.nrefs++;
287 13b2bc37 2022-10-23 stsp /* Account for a peeled tag refs. */
288 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&id, repo_write.repo, re->ref);
291 e26970cc 2023-01-10 op err = got_object_get_type(&obj_type, repo_write.repo, id);
295 13b2bc37 2022-10-23 stsp if (obj_type == GOT_OBJ_TYPE_TAG)
296 13b2bc37 2022-10-23 stsp irefs.nrefs++;
299 13b2bc37 2022-10-23 stsp if (imsg_compose(&ibuf, GOTD_IMSG_REFLIST, PROC_REPO_WRITE,
300 13b2bc37 2022-10-23 stsp repo_write.pid, -1, &irefs, sizeof(irefs)) == -1) {
301 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_compose REFLIST");
305 13b2bc37 2022-10-23 stsp TAILQ_FOREACH(re, &refs, entry) {
306 13b2bc37 2022-10-23 stsp if (got_ref_is_symbolic(re->ref))
308 13b2bc37 2022-10-23 stsp err = send_ref(re->ref, &ibuf);
313 13b2bc37 2022-10-23 stsp err = gotd_imsg_flush(&ibuf);
315 13b2bc37 2022-10-23 stsp got_ref_list_free(&refs);
316 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
317 13b2bc37 2022-10-23 stsp return err;
320 13b2bc37 2022-10-23 stsp static const struct got_error *
321 9afa3de2 2023-04-04 stsp validate_namespace(const char *namespace)
323 13b2bc37 2022-10-23 stsp size_t len = strlen(namespace);
325 13b2bc37 2022-10-23 stsp if (len < 5 || strncmp("refs/", namespace, 5) != 0 ||
326 13b2bc37 2022-10-23 stsp namespace[len -1] != '/') {
327 13b2bc37 2022-10-23 stsp return got_error_fmt(GOT_ERR_BAD_REF_NAME,
328 13b2bc37 2022-10-23 stsp "reference namespace '%s'", namespace);
331 9afa3de2 2023-04-04 stsp return NULL;
334 9afa3de2 2023-04-04 stsp static const struct got_error *
335 9afa3de2 2023-04-04 stsp protect_ref_namespace(const char *refname, const char *namespace)
337 9afa3de2 2023-04-04 stsp const struct got_error *err;
339 9afa3de2 2023-04-04 stsp err = validate_namespace(namespace);
341 9afa3de2 2023-04-04 stsp return err;
343 9afa3de2 2023-04-04 stsp if (strncmp(namespace, refname, strlen(namespace)) == 0)
344 13b2bc37 2022-10-23 stsp return got_error_fmt(GOT_ERR_REFS_PROTECTED, "%s", namespace);
346 13b2bc37 2022-10-23 stsp return NULL;
349 13b2bc37 2022-10-23 stsp static const struct got_error *
350 9afa3de2 2023-04-04 stsp verify_object_type(struct got_object_id *id, int expected_obj_type,
351 9afa3de2 2023-04-04 stsp struct got_pack *pack, struct got_packidx *packidx)
353 9afa3de2 2023-04-04 stsp const struct got_error *err;
354 9afa3de2 2023-04-04 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
355 9afa3de2 2023-04-04 stsp struct got_object *obj;
357 9afa3de2 2023-04-04 stsp const char *typestr;
359 9afa3de2 2023-04-04 stsp idx = got_packidx_get_object_idx(packidx, id);
360 9afa3de2 2023-04-04 stsp if (idx == -1) {
361 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(id->sha1, hex, sizeof(hex));
362 9afa3de2 2023-04-04 stsp return got_error_fmt(GOT_ERR_BAD_PACKFILE,
363 9afa3de2 2023-04-04 stsp "object %s is missing from pack file", hex);
366 9afa3de2 2023-04-04 stsp err = got_object_open_from_packfile(&obj, id, pack, packidx,
367 9afa3de2 2023-04-04 stsp idx, repo_write.repo);
369 9afa3de2 2023-04-04 stsp return err;
371 9afa3de2 2023-04-04 stsp if (obj->type != expected_obj_type) {
372 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(id->sha1, hex, sizeof(hex));
373 9afa3de2 2023-04-04 stsp got_object_type_label(&typestr, expected_obj_type);
374 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
375 9afa3de2 2023-04-04 stsp "%s is not pointing at a %s object", hex, typestr);
377 9afa3de2 2023-04-04 stsp got_object_close(obj);
378 9afa3de2 2023-04-04 stsp return err;
381 9afa3de2 2023-04-04 stsp static const struct got_error *
382 9afa3de2 2023-04-04 stsp protect_tag_namespace(const char *namespace, struct got_pack *pack,
383 9afa3de2 2023-04-04 stsp struct got_packidx *packidx, struct gotd_ref_update *ref_update)
385 9afa3de2 2023-04-04 stsp const struct got_error *err;
387 9afa3de2 2023-04-04 stsp err = validate_namespace(namespace);
389 9afa3de2 2023-04-04 stsp return err;
391 9afa3de2 2023-04-04 stsp if (strncmp(namespace, got_ref_get_name(ref_update->ref),
392 9afa3de2 2023-04-04 stsp strlen(namespace)) != 0)
393 9afa3de2 2023-04-04 stsp return NULL;
395 9afa3de2 2023-04-04 stsp if (!ref_update->ref_is_new)
396 9afa3de2 2023-04-04 stsp return got_error_fmt(GOT_ERR_REFS_PROTECTED, "%s", namespace);
398 9afa3de2 2023-04-04 stsp return verify_object_type(&ref_update->new_id, GOT_OBJ_TYPE_TAG,
399 9afa3de2 2023-04-04 stsp pack, packidx);
402 9afa3de2 2023-04-04 stsp static const struct got_error *
403 9afa3de2 2023-04-04 stsp protect_require_yca(struct got_object_id *tip_id,
404 9afa3de2 2023-04-04 stsp size_t max_commits_to_traverse, struct got_pack *pack,
405 9afa3de2 2023-04-04 stsp struct got_packidx *packidx, struct got_reference *ref)
407 9afa3de2 2023-04-04 stsp const struct got_error *err;
408 9afa3de2 2023-04-04 stsp uint8_t *buf = NULL;
409 9afa3de2 2023-04-04 stsp size_t len;
410 9afa3de2 2023-04-04 stsp struct got_object_id *expected_yca_id = NULL;
411 9afa3de2 2023-04-04 stsp struct got_object *obj = NULL;
412 9afa3de2 2023-04-04 stsp struct got_commit_object *commit = NULL;
413 9afa3de2 2023-04-04 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
414 9afa3de2 2023-04-04 stsp const struct got_object_id_queue *parent_ids;
415 9afa3de2 2023-04-04 stsp struct got_object_id_queue ids;
416 9afa3de2 2023-04-04 stsp struct got_object_qid *pid, *qid;
417 9afa3de2 2023-04-04 stsp struct got_object_idset *traversed_set = NULL;
418 9afa3de2 2023-04-04 stsp int found_yca = 0, obj_type;
420 9afa3de2 2023-04-04 stsp STAILQ_INIT(&ids);
422 9afa3de2 2023-04-04 stsp err = got_ref_resolve(&expected_yca_id, repo_write.repo, ref);
424 9afa3de2 2023-04-04 stsp return err;
426 9afa3de2 2023-04-04 stsp err = got_object_get_type(&obj_type, repo_write.repo, expected_yca_id);
430 9afa3de2 2023-04-04 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT) {
431 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(expected_yca_id->sha1, hex, sizeof(hex));
432 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
433 9afa3de2 2023-04-04 stsp "%s is not pointing at a commit object", hex);
437 9afa3de2 2023-04-04 stsp traversed_set = got_object_idset_alloc();
438 9afa3de2 2023-04-04 stsp if (traversed_set == NULL) {
439 9afa3de2 2023-04-04 stsp err = got_error_from_errno("got_object_idset_alloc");
443 9afa3de2 2023-04-04 stsp err = got_object_qid_alloc(&qid, tip_id);
446 9afa3de2 2023-04-04 stsp STAILQ_INSERT_TAIL(&ids, qid, entry);
447 9afa3de2 2023-04-04 stsp while (!STAILQ_EMPTY(&ids)) {
448 9afa3de2 2023-04-04 stsp err = check_cancelled(NULL);
452 9afa3de2 2023-04-04 stsp qid = STAILQ_FIRST(&ids);
453 9afa3de2 2023-04-04 stsp if (got_object_id_cmp(&qid->id, expected_yca_id) == 0) {
454 9afa3de2 2023-04-04 stsp found_yca = 1;
458 9afa3de2 2023-04-04 stsp if (got_object_idset_num_elements(traversed_set) >=
459 9afa3de2 2023-04-04 stsp max_commits_to_traverse)
462 9afa3de2 2023-04-04 stsp if (got_object_idset_contains(traversed_set, &qid->id)) {
463 9afa3de2 2023-04-04 stsp STAILQ_REMOVE_HEAD(&ids, entry);
464 9afa3de2 2023-04-04 stsp got_object_qid_free(qid);
465 9afa3de2 2023-04-04 stsp qid = NULL;
468 9afa3de2 2023-04-04 stsp err = got_object_idset_add(traversed_set, &qid->id, NULL);
472 9afa3de2 2023-04-04 stsp err = got_object_open(&obj, repo_write.repo, &qid->id);
473 9afa3de2 2023-04-04 stsp if (err && err->code != GOT_ERR_NO_OBJ)
475 9afa3de2 2023-04-04 stsp err = NULL;
477 9afa3de2 2023-04-04 stsp err = got_object_commit_open(&commit, repo_write.repo,
484 9afa3de2 2023-04-04 stsp idx = got_packidx_get_object_idx(packidx, &qid->id);
485 9afa3de2 2023-04-04 stsp if (idx == -1) {
486 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(qid->id.sha1,
487 9afa3de2 2023-04-04 stsp hex, sizeof(hex));
488 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_BAD_PACKFILE,
489 9afa3de2 2023-04-04 stsp "object %s is missing from pack file", hex);
493 9afa3de2 2023-04-04 stsp err = got_object_open_from_packfile(&obj, &qid->id,
494 9afa3de2 2023-04-04 stsp pack, packidx, idx, repo_write.repo);
498 9afa3de2 2023-04-04 stsp if (obj->type != GOT_OBJ_TYPE_COMMIT) {
499 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(qid->id.sha1,
500 9afa3de2 2023-04-04 stsp hex, sizeof(hex));
501 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
502 9afa3de2 2023-04-04 stsp "%s is not pointing at a commit object",
507 9afa3de2 2023-04-04 stsp err = got_packfile_extract_object_to_mem(&buf, &len,
508 9afa3de2 2023-04-04 stsp obj, pack);
512 9afa3de2 2023-04-04 stsp err = got_object_parse_commit(&commit, buf, len);
517 9afa3de2 2023-04-04 stsp buf = NULL;
520 9afa3de2 2023-04-04 stsp got_object_close(obj);
521 9afa3de2 2023-04-04 stsp obj = NULL;
523 9afa3de2 2023-04-04 stsp STAILQ_REMOVE_HEAD(&ids, entry);
524 9afa3de2 2023-04-04 stsp got_object_qid_free(qid);
525 9afa3de2 2023-04-04 stsp qid = NULL;
527 9afa3de2 2023-04-04 stsp if (got_object_commit_get_nparents(commit) == 0)
530 9afa3de2 2023-04-04 stsp parent_ids = got_object_commit_get_parent_ids(commit);
531 9afa3de2 2023-04-04 stsp STAILQ_FOREACH(pid, parent_ids, entry) {
532 9afa3de2 2023-04-04 stsp err = check_cancelled(NULL);
535 9afa3de2 2023-04-04 stsp err = got_object_qid_alloc(&qid, &pid->id);
538 9afa3de2 2023-04-04 stsp STAILQ_INSERT_TAIL(&ids, qid, entry);
539 9afa3de2 2023-04-04 stsp qid = NULL;
541 9afa3de2 2023-04-04 stsp got_object_commit_close(commit);
542 9afa3de2 2023-04-04 stsp commit = NULL;
545 9afa3de2 2023-04-04 stsp if (!found_yca) {
546 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_REF_PROTECTED, "%s",
547 9afa3de2 2023-04-04 stsp got_ref_get_name(ref));
550 9afa3de2 2023-04-04 stsp got_object_idset_free(traversed_set);
551 9afa3de2 2023-04-04 stsp got_object_id_queue_free(&ids);
554 9afa3de2 2023-04-04 stsp got_object_close(obj);
555 9afa3de2 2023-04-04 stsp if (commit)
556 9afa3de2 2023-04-04 stsp got_object_commit_close(commit);
557 9afa3de2 2023-04-04 stsp free(expected_yca_id);
558 9afa3de2 2023-04-04 stsp return err;
561 9afa3de2 2023-04-04 stsp static const struct got_error *
562 9afa3de2 2023-04-04 stsp protect_branch_namespace(const char *namespace, struct got_pack *pack,
563 9afa3de2 2023-04-04 stsp struct got_packidx *packidx, struct gotd_ref_update *ref_update)
565 9afa3de2 2023-04-04 stsp const struct got_error *err;
567 9afa3de2 2023-04-04 stsp err = validate_namespace(namespace);
569 9afa3de2 2023-04-04 stsp return err;
571 9afa3de2 2023-04-04 stsp if (strncmp(namespace, got_ref_get_name(ref_update->ref),
572 9afa3de2 2023-04-04 stsp strlen(namespace)) != 0)
573 9afa3de2 2023-04-04 stsp return NULL;
575 9afa3de2 2023-04-04 stsp if (ref_update->ref_is_new) {
576 9afa3de2 2023-04-04 stsp return verify_object_type(&ref_update->new_id,
577 9afa3de2 2023-04-04 stsp GOT_OBJ_TYPE_COMMIT, pack, packidx);
580 9afa3de2 2023-04-04 stsp return protect_require_yca(&ref_update->new_id,
581 9afa3de2 2023-04-04 stsp be32toh(packidx->hdr.fanout_table[0xff]), pack, packidx,
582 9afa3de2 2023-04-04 stsp ref_update->ref);
585 9afa3de2 2023-04-04 stsp static const struct got_error *
586 9afa3de2 2023-04-04 stsp protect_branch(const char *refname, struct got_pack *pack,
587 9afa3de2 2023-04-04 stsp struct got_packidx *packidx, struct gotd_ref_update *ref_update)
589 9afa3de2 2023-04-04 stsp if (strcmp(refname, got_ref_get_name(ref_update->ref)) != 0)
590 9afa3de2 2023-04-04 stsp return NULL;
592 9afa3de2 2023-04-04 stsp /* Always allow new branches to be created. */
593 9afa3de2 2023-04-04 stsp if (ref_update->ref_is_new) {
594 9afa3de2 2023-04-04 stsp return verify_object_type(&ref_update->new_id,
595 9afa3de2 2023-04-04 stsp GOT_OBJ_TYPE_COMMIT, pack, packidx);
598 9afa3de2 2023-04-04 stsp return protect_require_yca(&ref_update->new_id,
599 9afa3de2 2023-04-04 stsp be32toh(packidx->hdr.fanout_table[0xff]), pack, packidx,
600 9afa3de2 2023-04-04 stsp ref_update->ref);
603 9afa3de2 2023-04-04 stsp static const struct got_error *
604 1a52c9bf 2022-12-30 stsp recv_ref_update(struct imsg *imsg)
606 9a8e357c 2023-01-28 op static const char zero_id[SHA1_DIGEST_LENGTH];
607 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
608 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
609 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update iref;
610 13b2bc37 2022-10-23 stsp size_t datalen;
611 13b2bc37 2022-10-23 stsp char *refname = NULL;
612 13b2bc37 2022-10-23 stsp struct got_reference *ref = NULL;
613 13b2bc37 2022-10-23 stsp struct got_object_id *id = NULL;
614 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
615 13b2bc37 2022-10-23 stsp struct gotd_ref_update *ref_update = NULL;
617 13b2bc37 2022-10-23 stsp log_debug("ref-update received");
619 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
620 13b2bc37 2022-10-23 stsp if (datalen < sizeof(iref))
621 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
622 13b2bc37 2022-10-23 stsp memcpy(&iref, imsg->data, sizeof(iref));
623 13b2bc37 2022-10-23 stsp if (datalen != sizeof(iref) + iref.name_len)
624 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
626 1a52c9bf 2022-12-30 stsp imsg_init(&ibuf, client->fd);
628 00b3e9ae 2023-01-11 op refname = strndup(imsg->data + sizeof(iref), iref.name_len);
629 13b2bc37 2022-10-23 stsp if (refname == NULL)
630 00b3e9ae 2023-01-11 op return got_error_from_errno("strndup");
632 13b2bc37 2022-10-23 stsp ref_update = calloc(1, sizeof(*ref_update));
633 13b2bc37 2022-10-23 stsp if (ref_update == NULL) {
634 13b2bc37 2022-10-23 stsp err = got_error_from_errno("malloc");
638 13b2bc37 2022-10-23 stsp memcpy(ref_update->old_id.sha1, iref.old_id, SHA1_DIGEST_LENGTH);
639 13b2bc37 2022-10-23 stsp memcpy(ref_update->new_id.sha1, iref.new_id, SHA1_DIGEST_LENGTH);
641 13b2bc37 2022-10-23 stsp err = got_ref_open(&ref, repo_write.repo, refname, 0);
643 13b2bc37 2022-10-23 stsp if (err->code != GOT_ERR_NOT_REF)
645 9afa3de2 2023-04-04 stsp if (memcmp(ref_update->new_id.sha1,
646 9afa3de2 2023-04-04 stsp zero_id, sizeof(zero_id)) == 0) {
647 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_BAD_OBJ_ID,
648 9afa3de2 2023-04-04 stsp "%s", refname);
651 13b2bc37 2022-10-23 stsp err = got_ref_alloc(&ref, refname, &ref_update->new_id);
654 13b2bc37 2022-10-23 stsp ref_update->ref_is_new = 1;
655 0ff2c315 2023-01-18 stsp client->nref_new++;
657 13b2bc37 2022-10-23 stsp if (got_ref_is_symbolic(ref)) {
658 13b2bc37 2022-10-23 stsp err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
659 13b2bc37 2022-10-23 stsp "'%s' is a symbolic reference and cannot "
660 13b2bc37 2022-10-23 stsp "be updated", got_ref_get_name(ref));
663 13b2bc37 2022-10-23 stsp if (strncmp("refs/", got_ref_get_name(ref), 5) != 0) {
664 13b2bc37 2022-10-23 stsp err = got_error_fmt(GOT_ERR_BAD_REF_NAME,
665 13b2bc37 2022-10-23 stsp "%s: does not begin with 'refs/'",
666 13b2bc37 2022-10-23 stsp got_ref_get_name(ref));
670 9afa3de2 2023-04-04 stsp err = protect_ref_namespace(got_ref_get_name(ref), "refs/got/");
673 9afa3de2 2023-04-04 stsp err = protect_ref_namespace(got_ref_get_name(ref), "refs/remotes/");
677 13b2bc37 2022-10-23 stsp if (!ref_update->ref_is_new) {
679 13b2bc37 2022-10-23 stsp * Ensure the client's idea of this update is still valid.
680 13b2bc37 2022-10-23 stsp * At this point we can only return an error, to prevent
681 13b2bc37 2022-10-23 stsp * the client from uploading a pack file which will likely
682 13b2bc37 2022-10-23 stsp * have to be discarded.
684 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&id, repo_write.repo, ref);
688 13b2bc37 2022-10-23 stsp if (got_object_id_cmp(id, &ref_update->old_id) != 0) {
689 13b2bc37 2022-10-23 stsp err = got_error_fmt(GOT_ERR_REF_BUSY,
690 13b2bc37 2022-10-23 stsp "%s has been modified by someone else "
691 13b2bc37 2022-10-23 stsp "while transaction was in progress",
692 13b2bc37 2022-10-23 stsp got_ref_get_name(ref));
697 13b2bc37 2022-10-23 stsp gotd_imsg_send_ack(&ref_update->new_id, &ibuf, PROC_REPO_WRITE,
698 13b2bc37 2022-10-23 stsp repo_write.pid);
700 13b2bc37 2022-10-23 stsp ref_update->ref = ref;
701 9a8e357c 2023-01-28 op if (memcmp(ref_update->new_id.sha1, zero_id, sizeof(zero_id)) == 0) {
702 9a8e357c 2023-01-28 op ref_update->delete_ref = 1;
703 9a8e357c 2023-01-28 op client->nref_del++;
705 1a52c9bf 2022-12-30 stsp STAILQ_INSERT_HEAD(&client->ref_updates, ref_update, entry);
706 1a52c9bf 2022-12-30 stsp client->nref_updates++;
707 13b2bc37 2022-10-23 stsp ref = NULL;
708 13b2bc37 2022-10-23 stsp ref_update = NULL;
711 13b2bc37 2022-10-23 stsp got_ref_close(ref);
712 13b2bc37 2022-10-23 stsp free(ref_update);
713 13b2bc37 2022-10-23 stsp free(refname);
715 13b2bc37 2022-10-23 stsp return err;
718 13b2bc37 2022-10-23 stsp static const struct got_error *
719 13b2bc37 2022-10-23 stsp pack_index_progress(void *arg, uint32_t nobj_total, uint32_t nobj_indexed,
720 13b2bc37 2022-10-23 stsp uint32_t nobj_loose, uint32_t nobj_resolved)
722 13b2bc37 2022-10-23 stsp int p_indexed = 0, p_resolved = 0;
723 13b2bc37 2022-10-23 stsp int nobj_delta = nobj_total - nobj_loose;
725 13b2bc37 2022-10-23 stsp if (nobj_total > 0)
726 13b2bc37 2022-10-23 stsp p_indexed = (nobj_indexed * 100) / nobj_total;
728 13b2bc37 2022-10-23 stsp if (nobj_delta > 0)
729 13b2bc37 2022-10-23 stsp p_resolved = (nobj_resolved * 100) / nobj_delta;
731 13b2bc37 2022-10-23 stsp if (p_resolved > 0) {
732 13b2bc37 2022-10-23 stsp log_debug("indexing %d objects %d%%; resolving %d deltas %d%%",
733 13b2bc37 2022-10-23 stsp nobj_total, p_indexed, nobj_delta, p_resolved);
735 13b2bc37 2022-10-23 stsp log_debug("indexing %d objects %d%%", nobj_total, p_indexed);
737 13b2bc37 2022-10-23 stsp return NULL;
740 13b2bc37 2022-10-23 stsp static const struct got_error *
741 13b2bc37 2022-10-23 stsp read_more_pack_stream(int infd, BUF *buf, size_t minsize)
743 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
744 13b2bc37 2022-10-23 stsp uint8_t readahead[65536];
745 13b2bc37 2022-10-23 stsp size_t have, newlen;
747 13b2bc37 2022-10-23 stsp err = got_poll_read_full(infd, &have,
748 13b2bc37 2022-10-23 stsp readahead, sizeof(readahead), minsize);
750 13b2bc37 2022-10-23 stsp return err;
752 13b2bc37 2022-10-23 stsp err = buf_append(&newlen, buf, readahead, have);
754 13b2bc37 2022-10-23 stsp return err;
758 13b2bc37 2022-10-23 stsp static const struct got_error *
759 13b2bc37 2022-10-23 stsp copy_object_type_and_size(uint8_t *type, uint64_t *size, int infd, int outfd,
760 ae25a666 2023-02-23 op off_t *outsize, BUF *buf, size_t *buf_pos, struct got_hash *ctx)
762 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
763 13b2bc37 2022-10-23 stsp uint8_t t = 0;
764 13b2bc37 2022-10-23 stsp uint64_t s = 0;
765 13b2bc37 2022-10-23 stsp uint8_t sizebuf[8];
766 13b2bc37 2022-10-23 stsp size_t i = 0;
767 13b2bc37 2022-10-23 stsp off_t obj_offset = *outsize;
770 13b2bc37 2022-10-23 stsp /* We do not support size values which don't fit in 64 bit. */
772 13b2bc37 2022-10-23 stsp return got_error_fmt(GOT_ERR_OBJ_TOO_LARGE,
773 22ec3416 2022-10-25 op "packfile offset %lld", (long long)obj_offset);
775 13b2bc37 2022-10-23 stsp if (buf_len(buf) - *buf_pos < sizeof(sizebuf[0])) {
776 13b2bc37 2022-10-23 stsp err = read_more_pack_stream(infd, buf,
777 13b2bc37 2022-10-23 stsp sizeof(sizebuf[0]));
779 13b2bc37 2022-10-23 stsp return err;
782 13b2bc37 2022-10-23 stsp sizebuf[i] = buf_getc(buf, *buf_pos);
783 13b2bc37 2022-10-23 stsp *buf_pos += sizeof(sizebuf[i]);
785 13b2bc37 2022-10-23 stsp if (i == 0) {
786 13b2bc37 2022-10-23 stsp t = (sizebuf[i] & GOT_PACK_OBJ_SIZE0_TYPE_MASK) >>
787 13b2bc37 2022-10-23 stsp GOT_PACK_OBJ_SIZE0_TYPE_MASK_SHIFT;
788 13b2bc37 2022-10-23 stsp s = (sizebuf[i] & GOT_PACK_OBJ_SIZE0_VAL_MASK);
790 13b2bc37 2022-10-23 stsp size_t shift = 4 + 7 * (i - 1);
791 13b2bc37 2022-10-23 stsp s |= ((sizebuf[i] & GOT_PACK_OBJ_SIZE_VAL_MASK) <<
795 13b2bc37 2022-10-23 stsp } while (sizebuf[i - 1] & GOT_PACK_OBJ_SIZE_MORE);
797 13b2bc37 2022-10-23 stsp err = got_pack_hwrite(outfd, sizebuf, i, ctx);
799 13b2bc37 2022-10-23 stsp return err;
800 13b2bc37 2022-10-23 stsp *outsize += i;
804 13b2bc37 2022-10-23 stsp return NULL;
807 13b2bc37 2022-10-23 stsp static const struct got_error *
808 13b2bc37 2022-10-23 stsp copy_ref_delta(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
809 ae25a666 2023-02-23 op struct got_hash *ctx)
811 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
812 13b2bc37 2022-10-23 stsp size_t remain = buf_len(buf) - *buf_pos;
814 13b2bc37 2022-10-23 stsp if (remain < SHA1_DIGEST_LENGTH) {
815 13b2bc37 2022-10-23 stsp err = read_more_pack_stream(infd, buf,
816 13b2bc37 2022-10-23 stsp SHA1_DIGEST_LENGTH - remain);
818 13b2bc37 2022-10-23 stsp return err;
821 13b2bc37 2022-10-23 stsp err = got_pack_hwrite(outfd, buf_get(buf) + *buf_pos,
822 13b2bc37 2022-10-23 stsp SHA1_DIGEST_LENGTH, ctx);
824 13b2bc37 2022-10-23 stsp return err;
826 13b2bc37 2022-10-23 stsp *buf_pos += SHA1_DIGEST_LENGTH;
827 13b2bc37 2022-10-23 stsp return NULL;
830 13b2bc37 2022-10-23 stsp static const struct got_error *
831 13b2bc37 2022-10-23 stsp copy_offset_delta(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
832 ae25a666 2023-02-23 op struct got_hash *ctx)
834 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
835 13b2bc37 2022-10-23 stsp uint64_t o = 0;
836 13b2bc37 2022-10-23 stsp uint8_t offbuf[8];
837 13b2bc37 2022-10-23 stsp size_t i = 0;
838 13b2bc37 2022-10-23 stsp off_t obj_offset = *outsize;
841 13b2bc37 2022-10-23 stsp /* We do not support offset values which don't fit in 64 bit. */
843 13b2bc37 2022-10-23 stsp return got_error_fmt(GOT_ERR_OBJ_TOO_LARGE,
844 22ec3416 2022-10-25 op "packfile offset %lld", (long long)obj_offset);
846 13b2bc37 2022-10-23 stsp if (buf_len(buf) - *buf_pos < sizeof(offbuf[0])) {
847 13b2bc37 2022-10-23 stsp err = read_more_pack_stream(infd, buf,
848 13b2bc37 2022-10-23 stsp sizeof(offbuf[0]));
850 13b2bc37 2022-10-23 stsp return err;
853 13b2bc37 2022-10-23 stsp offbuf[i] = buf_getc(buf, *buf_pos);
854 13b2bc37 2022-10-23 stsp *buf_pos += sizeof(offbuf[i]);
856 13b2bc37 2022-10-23 stsp if (i == 0)
857 13b2bc37 2022-10-23 stsp o = (offbuf[i] & GOT_PACK_OBJ_DELTA_OFF_VAL_MASK);
861 13b2bc37 2022-10-23 stsp o += (offbuf[i] & GOT_PACK_OBJ_DELTA_OFF_VAL_MASK);
864 13b2bc37 2022-10-23 stsp } while (offbuf[i - 1] & GOT_PACK_OBJ_DELTA_OFF_MORE);
866 13b2bc37 2022-10-23 stsp if (o < sizeof(struct got_packfile_hdr) || o > *outsize)
867 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PACK_OFFSET);
869 13b2bc37 2022-10-23 stsp err = got_pack_hwrite(outfd, offbuf, i, ctx);
871 13b2bc37 2022-10-23 stsp return err;
873 13b2bc37 2022-10-23 stsp *outsize += i;
874 13b2bc37 2022-10-23 stsp return NULL;
877 13b2bc37 2022-10-23 stsp static const struct got_error *
878 13b2bc37 2022-10-23 stsp copy_zstream(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
879 ae25a666 2023-02-23 op struct got_hash *ctx)
881 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
882 13b2bc37 2022-10-23 stsp z_stream z;
884 13b2bc37 2022-10-23 stsp char voidbuf[1024];
885 13b2bc37 2022-10-23 stsp size_t consumed_total = 0;
886 13b2bc37 2022-10-23 stsp off_t zstream_offset = *outsize;
888 13b2bc37 2022-10-23 stsp memset(&z, 0, sizeof(z));
890 13b2bc37 2022-10-23 stsp z.zalloc = Z_NULL;
891 13b2bc37 2022-10-23 stsp z.zfree = Z_NULL;
892 13b2bc37 2022-10-23 stsp zret = inflateInit(&z);
893 13b2bc37 2022-10-23 stsp if (zret != Z_OK) {
894 13b2bc37 2022-10-23 stsp if (zret == Z_ERRNO)
895 13b2bc37 2022-10-23 stsp return got_error_from_errno("inflateInit");
896 13b2bc37 2022-10-23 stsp if (zret == Z_MEM_ERROR) {
897 13b2bc37 2022-10-23 stsp errno = ENOMEM;
898 13b2bc37 2022-10-23 stsp return got_error_from_errno("inflateInit");
900 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_DECOMPRESSION,
901 13b2bc37 2022-10-23 stsp "inflateInit failed");
904 13b2bc37 2022-10-23 stsp while (zret != Z_STREAM_END) {
905 13b2bc37 2022-10-23 stsp size_t last_total_in, consumed;
908 13b2bc37 2022-10-23 stsp * Decompress into the void. Object data will be parsed
909 13b2bc37 2022-10-23 stsp * later, when the pack file is indexed. For now, we just
910 13b2bc37 2022-10-23 stsp * want to locate the end of the compressed stream.
912 13b2bc37 2022-10-23 stsp while (zret != Z_STREAM_END && buf_len(buf) - *buf_pos > 0) {
913 13b2bc37 2022-10-23 stsp last_total_in = z.total_in;
914 13b2bc37 2022-10-23 stsp z.next_in = buf_get(buf) + *buf_pos;
915 13b2bc37 2022-10-23 stsp z.avail_in = buf_len(buf) - *buf_pos;
916 13b2bc37 2022-10-23 stsp z.next_out = voidbuf;
917 13b2bc37 2022-10-23 stsp z.avail_out = sizeof(voidbuf);
919 13b2bc37 2022-10-23 stsp zret = inflate(&z, Z_SYNC_FLUSH);
920 13b2bc37 2022-10-23 stsp if (zret != Z_OK && zret != Z_BUF_ERROR &&
921 13b2bc37 2022-10-23 stsp zret != Z_STREAM_END) {
922 13b2bc37 2022-10-23 stsp err = got_error_fmt(GOT_ERR_DECOMPRESSION,
923 22ec3416 2022-10-25 op "packfile offset %lld",
924 22ec3416 2022-10-25 op (long long)zstream_offset);
927 13b2bc37 2022-10-23 stsp consumed = z.total_in - last_total_in;
929 13b2bc37 2022-10-23 stsp err = got_pack_hwrite(outfd, buf_get(buf) + *buf_pos,
930 13b2bc37 2022-10-23 stsp consumed, ctx);
934 13b2bc37 2022-10-23 stsp err = buf_discard(buf, *buf_pos + consumed);
937 13b2bc37 2022-10-23 stsp *buf_pos = 0;
939 13b2bc37 2022-10-23 stsp consumed_total += consumed;
942 13b2bc37 2022-10-23 stsp if (zret != Z_STREAM_END) {
943 13b2bc37 2022-10-23 stsp err = read_more_pack_stream(infd, buf, 1);
949 13b2bc37 2022-10-23 stsp if (err == NULL)
950 13b2bc37 2022-10-23 stsp *outsize += consumed_total;
952 13b2bc37 2022-10-23 stsp inflateEnd(&z);
953 13b2bc37 2022-10-23 stsp return err;
956 13b2bc37 2022-10-23 stsp static const struct got_error *
957 13b2bc37 2022-10-23 stsp validate_object_type(int obj_type)
959 13b2bc37 2022-10-23 stsp switch (obj_type) {
960 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_BLOB:
961 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_COMMIT:
962 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_TREE:
963 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_TAG:
964 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_REF_DELTA:
965 13b2bc37 2022-10-23 stsp case GOT_OBJ_TYPE_OFFSET_DELTA:
966 13b2bc37 2022-10-23 stsp return NULL;
971 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_OBJ_TYPE);
974 13b2bc37 2022-10-23 stsp static const struct got_error *
975 cc88020e 2023-04-11 stsp ensure_all_objects_exist_locally(struct gotd_ref_updates *ref_updates)
977 cc88020e 2023-04-11 stsp const struct got_error *err = NULL;
978 cc88020e 2023-04-11 stsp struct gotd_ref_update *ref_update;
979 cc88020e 2023-04-11 stsp struct got_object *obj;
981 cc88020e 2023-04-11 stsp STAILQ_FOREACH(ref_update, ref_updates, entry) {
982 cc88020e 2023-04-11 stsp err = got_object_open(&obj, repo_write.repo,
983 cc88020e 2023-04-11 stsp &ref_update->new_id);
985 cc88020e 2023-04-11 stsp return err;
986 cc88020e 2023-04-11 stsp got_object_close(obj);
989 cc88020e 2023-04-11 stsp return NULL;
992 cc88020e 2023-04-11 stsp static const struct got_error *
993 0ff2c315 2023-01-18 stsp recv_packdata(off_t *outsize, uint32_t *nobj, uint8_t *sha1,
994 0ff2c315 2023-01-18 stsp int infd, int outfd)
996 13b2bc37 2022-10-23 stsp const struct got_error *err;
997 0ff2c315 2023-01-18 stsp struct repo_write_client *client = &repo_write_client;
998 13b2bc37 2022-10-23 stsp struct got_packfile_hdr hdr;
999 13b2bc37 2022-10-23 stsp size_t have;
1000 0ff2c315 2023-01-18 stsp uint32_t nhave = 0;
1001 ae25a666 2023-02-23 op struct got_hash ctx;
1002 13b2bc37 2022-10-23 stsp uint8_t expected_sha1[SHA1_DIGEST_LENGTH];
1003 13b2bc37 2022-10-23 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
1004 13b2bc37 2022-10-23 stsp BUF *buf = NULL;
1005 13b2bc37 2022-10-23 stsp size_t buf_pos = 0, remain;
1006 13b2bc37 2022-10-23 stsp ssize_t w;
1008 13b2bc37 2022-10-23 stsp *outsize = 0;
1009 0ff2c315 2023-01-18 stsp *nobj = 0;
1011 9a8e357c 2023-01-28 op /* if only deleting references there's nothing to read */
1012 9a8e357c 2023-01-28 op if (client->nref_updates == client->nref_del)
1013 9a8e357c 2023-01-28 op return NULL;
1015 ae25a666 2023-02-23 op got_hash_init(&ctx, GOT_HASH_SHA1);
1017 13b2bc37 2022-10-23 stsp err = got_poll_read_full(infd, &have, &hdr, sizeof(hdr), sizeof(hdr));
1019 13b2bc37 2022-10-23 stsp return err;
1020 13b2bc37 2022-10-23 stsp if (have != sizeof(hdr))
1021 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_PACKFILE, "short pack file");
1022 13b2bc37 2022-10-23 stsp *outsize += have;
1024 13b2bc37 2022-10-23 stsp if (hdr.signature != htobe32(GOT_PACKFILE_SIGNATURE))
1025 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_PACKFILE,
1026 13b2bc37 2022-10-23 stsp "bad packfile signature");
1027 13b2bc37 2022-10-23 stsp if (hdr.version != htobe32(GOT_PACKFILE_VERSION))
1028 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_PACKFILE,
1029 13b2bc37 2022-10-23 stsp "bad packfile version");
1031 0ff2c315 2023-01-18 stsp *nobj = be32toh(hdr.nobjects);
1032 0ff2c315 2023-01-18 stsp if (*nobj == 0) {
1034 0ff2c315 2023-01-18 stsp * Clients which are creating new references only
1035 0ff2c315 2023-01-18 stsp * will send us an empty pack file.
1037 0ff2c315 2023-01-18 stsp if (client->nref_updates > 0 &&
1038 0ff2c315 2023-01-18 stsp client->nref_updates == client->nref_new)
1039 0ff2c315 2023-01-18 stsp return NULL;
1042 cc88020e 2023-04-11 stsp * Clients which only move existing refs will send us an empty
1043 cc88020e 2023-04-11 stsp * pack file. All referenced objects must exist locally.
1045 cc88020e 2023-04-11 stsp err = ensure_all_objects_exist_locally(&client->ref_updates);
1046 cc88020e 2023-04-11 stsp if (err) {
1047 cc88020e 2023-04-11 stsp if (err->code != GOT_ERR_NO_OBJ)
1048 cc88020e 2023-04-11 stsp return err;
1049 cc88020e 2023-04-11 stsp return got_error_msg(GOT_ERR_BAD_PACKFILE,
1050 cc88020e 2023-04-11 stsp "bad packfile with zero objects");
1053 cc88020e 2023-04-11 stsp client->nref_move = client->nref_updates;
1054 cc88020e 2023-04-11 stsp return NULL;
1057 0ff2c315 2023-01-18 stsp log_debug("expecting %d objects", *nobj);
1059 13b2bc37 2022-10-23 stsp err = got_pack_hwrite(outfd, &hdr, sizeof(hdr), &ctx);
1061 13b2bc37 2022-10-23 stsp return err;
1063 13b2bc37 2022-10-23 stsp err = buf_alloc(&buf, 65536);
1065 13b2bc37 2022-10-23 stsp return err;
1067 0ff2c315 2023-01-18 stsp while (nhave != *nobj) {
1068 13b2bc37 2022-10-23 stsp uint8_t obj_type;
1069 13b2bc37 2022-10-23 stsp uint64_t obj_size;
1071 13b2bc37 2022-10-23 stsp err = copy_object_type_and_size(&obj_type, &obj_size,
1072 13b2bc37 2022-10-23 stsp infd, outfd, outsize, buf, &buf_pos, &ctx);
1074 13b2bc37 2022-10-23 stsp goto done;
1076 13b2bc37 2022-10-23 stsp err = validate_object_type(obj_type);
1078 13b2bc37 2022-10-23 stsp goto done;
1080 13b2bc37 2022-10-23 stsp if (obj_type == GOT_OBJ_TYPE_REF_DELTA) {
1081 13b2bc37 2022-10-23 stsp err = copy_ref_delta(infd, outfd, outsize,
1082 13b2bc37 2022-10-23 stsp buf, &buf_pos, &ctx);
1084 13b2bc37 2022-10-23 stsp goto done;
1085 13b2bc37 2022-10-23 stsp } else if (obj_type == GOT_OBJ_TYPE_OFFSET_DELTA) {
1086 13b2bc37 2022-10-23 stsp err = copy_offset_delta(infd, outfd, outsize,
1087 13b2bc37 2022-10-23 stsp buf, &buf_pos, &ctx);
1089 13b2bc37 2022-10-23 stsp goto done;
1092 13b2bc37 2022-10-23 stsp err = copy_zstream(infd, outfd, outsize, buf, &buf_pos, &ctx);
1094 13b2bc37 2022-10-23 stsp goto done;
1099 0ff2c315 2023-01-18 stsp log_debug("received %u objects", *nobj);
1101 ae25a666 2023-02-23 op got_hash_final(&ctx, expected_sha1);
1103 13b2bc37 2022-10-23 stsp remain = buf_len(buf) - buf_pos;
1104 13b2bc37 2022-10-23 stsp if (remain < SHA1_DIGEST_LENGTH) {
1105 13b2bc37 2022-10-23 stsp err = read_more_pack_stream(infd, buf,
1106 13b2bc37 2022-10-23 stsp SHA1_DIGEST_LENGTH - remain);
1108 13b2bc37 2022-10-23 stsp return err;
1111 13b2bc37 2022-10-23 stsp got_sha1_digest_to_str(expected_sha1, hex, sizeof(hex));
1112 13b2bc37 2022-10-23 stsp log_debug("expect SHA1: %s", hex);
1113 13b2bc37 2022-10-23 stsp got_sha1_digest_to_str(buf_get(buf) + buf_pos, hex, sizeof(hex));
1114 13b2bc37 2022-10-23 stsp log_debug("actual SHA1: %s", hex);
1116 13b2bc37 2022-10-23 stsp if (memcmp(buf_get(buf) + buf_pos, expected_sha1,
1117 13b2bc37 2022-10-23 stsp SHA1_DIGEST_LENGTH) != 0) {
1118 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_PACKFILE_CSUM);
1119 13b2bc37 2022-10-23 stsp goto done;
1122 13b2bc37 2022-10-23 stsp memcpy(sha1, expected_sha1, SHA1_DIGEST_LENGTH);
1124 13b2bc37 2022-10-23 stsp w = write(outfd, expected_sha1, SHA1_DIGEST_LENGTH);
1125 13b2bc37 2022-10-23 stsp if (w == -1) {
1126 13b2bc37 2022-10-23 stsp err = got_error_from_errno("write");
1127 13b2bc37 2022-10-23 stsp goto done;
1129 13b2bc37 2022-10-23 stsp if (w != SHA1_DIGEST_LENGTH) {
1130 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_IO);
1131 13b2bc37 2022-10-23 stsp goto done;
1134 13b2bc37 2022-10-23 stsp *outsize += SHA1_DIGEST_LENGTH;
1136 13b2bc37 2022-10-23 stsp if (fsync(outfd) == -1) {
1137 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fsync");
1138 13b2bc37 2022-10-23 stsp goto done;
1140 13b2bc37 2022-10-23 stsp if (lseek(outfd, 0L, SEEK_SET) == -1) {
1141 13b2bc37 2022-10-23 stsp err = got_error_from_errno("lseek");
1142 13b2bc37 2022-10-23 stsp goto done;
1145 13b2bc37 2022-10-23 stsp buf_free(buf);
1146 13b2bc37 2022-10-23 stsp return err;
1149 13b2bc37 2022-10-23 stsp static const struct got_error *
1150 1a52c9bf 2022-12-30 stsp report_pack_status(const struct got_error *unpack_err)
1152 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
1153 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1154 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_status istatus;
1155 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
1156 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
1157 13b2bc37 2022-10-23 stsp const char *unpack_ok = "unpack ok\n";
1158 13b2bc37 2022-10-23 stsp size_t len;
1160 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, client->fd);
1162 13b2bc37 2022-10-23 stsp if (unpack_err)
1163 13b2bc37 2022-10-23 stsp istatus.reason_len = strlen(unpack_err->msg);
1165 13b2bc37 2022-10-23 stsp istatus.reason_len = strlen(unpack_ok);
1167 13b2bc37 2022-10-23 stsp len = sizeof(istatus) + istatus.reason_len;
1168 13b2bc37 2022-10-23 stsp wbuf = imsg_create(&ibuf, GOTD_IMSG_PACKFILE_STATUS, PROC_REPO_WRITE,
1169 13b2bc37 2022-10-23 stsp repo_write.pid, len);
1170 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
1171 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create PACKFILE_STATUS");
1172 13b2bc37 2022-10-23 stsp goto done;
1175 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &istatus, sizeof(istatus)) == -1) {
1176 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add PACKFILE_STATUS");
1177 13b2bc37 2022-10-23 stsp goto done;
1180 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, err ? err->msg : unpack_ok,
1181 13b2bc37 2022-10-23 stsp istatus.reason_len) == -1) {
1182 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add PACKFILE_STATUS");
1183 13b2bc37 2022-10-23 stsp goto done;
1186 13b2bc37 2022-10-23 stsp imsg_close(&ibuf, wbuf);
1188 13b2bc37 2022-10-23 stsp err = gotd_imsg_flush(&ibuf);
1190 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
1191 13b2bc37 2022-10-23 stsp return err;
1194 13b2bc37 2022-10-23 stsp static const struct got_error *
1195 0ff2c315 2023-01-18 stsp recv_packfile(int *have_packfile, struct imsg *imsg)
1197 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL, *unpack_err;
1198 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1199 13b2bc37 2022-10-23 stsp struct gotd_imsg_recv_packfile ireq;
1200 13b2bc37 2022-10-23 stsp FILE *tempfiles[3] = { NULL, NULL, NULL };
1201 13b2bc37 2022-10-23 stsp struct repo_tempfile {
1204 13b2bc37 2022-10-23 stsp } repo_tempfiles[3] = { { - 1, - 1 }, { - 1, - 1 }, { - 1, - 1 }, };
1206 13b2bc37 2022-10-23 stsp size_t datalen;
1207 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
1208 13b2bc37 2022-10-23 stsp struct got_ratelimit rl;
1209 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
1210 13b2bc37 2022-10-23 stsp off_t pack_filesize = 0;
1211 0ff2c315 2023-01-18 stsp uint32_t nobj = 0;
1213 13b2bc37 2022-10-23 stsp log_debug("packfile request received");
1215 0ff2c315 2023-01-18 stsp *have_packfile = 0;
1216 13b2bc37 2022-10-23 stsp got_ratelimit_init(&rl, 2, 0);
1218 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1219 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
1220 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
1221 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
1223 1a52c9bf 2022-12-30 stsp if (client->pack_pipe == -1 || client->packidx_fd == -1)
1224 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
1226 1a52c9bf 2022-12-30 stsp imsg_init(&ibuf, client->fd);
1228 1a52c9bf 2022-12-30 stsp pack = &client->pack;
1229 13b2bc37 2022-10-23 stsp memset(pack, 0, sizeof(*pack));
1230 2c52c623 2024-01-30 op pack->fd = imsg_get_fd(imsg);
1231 2c52c623 2024-01-30 op if (pack->fd == -1)
1232 2c52c623 2024-01-30 op return got_error(GOT_ERR_PRIVSEP_NO_FD);
1234 13b2bc37 2022-10-23 stsp err = got_delta_cache_alloc(&pack->delta_cache);
1236 13b2bc37 2022-10-23 stsp return err;
1238 13b2bc37 2022-10-23 stsp for (i = 0; i < nitems(repo_tempfiles); i++) {
1239 13b2bc37 2022-10-23 stsp struct repo_tempfile *t = &repo_tempfiles[i];
1240 13b2bc37 2022-10-23 stsp err = got_repo_temp_fds_get(&t->fd, &t->idx, repo_write.repo);
1242 13b2bc37 2022-10-23 stsp goto done;
1245 13b2bc37 2022-10-23 stsp for (i = 0; i < nitems(tempfiles); i++) {
1249 e294dc4e 2023-02-03 mark fd = dup(repo_tempfiles[i].fd);
1250 13b2bc37 2022-10-23 stsp if (fd == -1) {
1251 13b2bc37 2022-10-23 stsp err = got_error_from_errno("dup");
1252 13b2bc37 2022-10-23 stsp goto done;
1254 13b2bc37 2022-10-23 stsp f = fdopen(fd, "w+");
1255 13b2bc37 2022-10-23 stsp if (f == NULL) {
1256 e294dc4e 2023-02-03 mark err = got_error_from_errno("fdopen");
1257 13b2bc37 2022-10-23 stsp close(fd);
1258 13b2bc37 2022-10-23 stsp goto done;
1260 13b2bc37 2022-10-23 stsp tempfiles[i] = f;
1263 13b2bc37 2022-10-23 stsp err = gotd_imsg_flush(&ibuf);
1265 13b2bc37 2022-10-23 stsp goto done;
1267 13b2bc37 2022-10-23 stsp log_debug("receiving pack data");
1268 0ff2c315 2023-01-18 stsp unpack_err = recv_packdata(&pack_filesize, &nobj,
1269 0ff2c315 2023-01-18 stsp client->pack_sha1, client->pack_pipe, pack->fd);
1270 13b2bc37 2022-10-23 stsp if (ireq.report_status) {
1271 1a52c9bf 2022-12-30 stsp err = report_pack_status(unpack_err);
1272 13b2bc37 2022-10-23 stsp if (err) {
1273 13b2bc37 2022-10-23 stsp /* Git clients hang up after sending the pack file. */
1274 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_EOF)
1275 13b2bc37 2022-10-23 stsp err = NULL;
1278 13b2bc37 2022-10-23 stsp if (unpack_err)
1279 13b2bc37 2022-10-23 stsp err = unpack_err;
1281 13b2bc37 2022-10-23 stsp goto done;
1283 13b2bc37 2022-10-23 stsp log_debug("pack data received");
1286 0ff2c315 2023-01-18 stsp * Clients which are creating new references only will
1287 0ff2c315 2023-01-18 stsp * send us an empty pack file.
1289 0ff2c315 2023-01-18 stsp if (nobj == 0 &&
1290 0ff2c315 2023-01-18 stsp pack_filesize == sizeof(struct got_packfile_hdr) &&
1291 0ff2c315 2023-01-18 stsp client->nref_updates > 0 &&
1292 0ff2c315 2023-01-18 stsp client->nref_updates == client->nref_new)
1293 0ff2c315 2023-01-18 stsp goto done;
1296 9a8e357c 2023-01-28 op * Clients which are deleting references only will send
1297 9a8e357c 2023-01-28 op * no pack file.
1299 9a8e357c 2023-01-28 op if (nobj == 0 &&
1300 9a8e357c 2023-01-28 op client->nref_del > 0 &&
1301 9a8e357c 2023-01-28 op client->nref_updates == client->nref_del)
1302 cc88020e 2023-04-11 stsp goto done;
1305 cc88020e 2023-04-11 stsp * Clients which only move existing refs will send us an empty
1306 cc88020e 2023-04-11 stsp * pack file. All referenced objects must exist locally.
1308 cc88020e 2023-04-11 stsp if (nobj == 0 &&
1309 cc88020e 2023-04-11 stsp pack_filesize == sizeof(struct got_packfile_hdr) &&
1310 cc88020e 2023-04-11 stsp client->nref_move > 0 &&
1311 cc88020e 2023-04-11 stsp client->nref_updates == client->nref_move)
1314 13b2bc37 2022-10-23 stsp pack->filesize = pack_filesize;
1315 0ff2c315 2023-01-18 stsp *have_packfile = 1;
1317 ad4cc361 2022-10-27 op log_debug("begin indexing pack (%lld bytes in size)",
1318 ad4cc361 2022-10-27 op (long long)pack->filesize);
1319 1a52c9bf 2022-12-30 stsp err = got_pack_index(pack, client->packidx_fd,
1320 1a52c9bf 2022-12-30 stsp tempfiles[0], tempfiles[1], tempfiles[2], client->pack_sha1,
1321 13b2bc37 2022-10-23 stsp pack_index_progress, NULL, &rl);
1323 13b2bc37 2022-10-23 stsp goto done;
1324 13b2bc37 2022-10-23 stsp log_debug("done indexing pack");
1326 1a52c9bf 2022-12-30 stsp if (fsync(client->packidx_fd) == -1) {
1327 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fsync");
1328 13b2bc37 2022-10-23 stsp goto done;
1330 1a52c9bf 2022-12-30 stsp if (lseek(client->packidx_fd, 0L, SEEK_SET) == -1)
1331 13b2bc37 2022-10-23 stsp err = got_error_from_errno("lseek");
1333 1a52c9bf 2022-12-30 stsp if (close(client->pack_pipe) == -1 && err == NULL)
1334 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
1335 1a52c9bf 2022-12-30 stsp client->pack_pipe = -1;
1336 13b2bc37 2022-10-23 stsp for (i = 0; i < nitems(repo_tempfiles); i++) {
1337 13b2bc37 2022-10-23 stsp struct repo_tempfile *t = &repo_tempfiles[i];
1338 13b2bc37 2022-10-23 stsp if (t->idx != -1)
1339 13b2bc37 2022-10-23 stsp got_repo_temp_fds_put(t->idx, repo_write.repo);
1341 13b2bc37 2022-10-23 stsp for (i = 0; i < nitems(tempfiles); i++) {
1342 13b2bc37 2022-10-23 stsp if (tempfiles[i] && fclose(tempfiles[i]) == EOF && err == NULL)
1343 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fclose");
1346 13b2bc37 2022-10-23 stsp got_pack_close(pack);
1347 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
1348 13b2bc37 2022-10-23 stsp return err;
1351 13b2bc37 2022-10-23 stsp static const struct got_error *
1352 1a52c9bf 2022-12-30 stsp verify_packfile(void)
1354 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL, *close_err;
1355 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1356 13b2bc37 2022-10-23 stsp struct gotd_ref_update *ref_update;
1357 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
1358 13b2bc37 2022-10-23 stsp struct stat sb;
1359 13b2bc37 2022-10-23 stsp char *id_str = NULL;
1360 9afa3de2 2023-04-04 stsp struct got_object *obj = NULL;
1361 9afa3de2 2023-04-04 stsp struct got_pathlist_entry *pe;
1362 9afa3de2 2023-04-04 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
1364 13b2bc37 2022-10-23 stsp if (STAILQ_EMPTY(&client->ref_updates)) {
1365 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_REQUEST,
1366 13b2bc37 2022-10-23 stsp "cannot verify pack file without any ref-updates");
1369 13b2bc37 2022-10-23 stsp if (client->pack.fd == -1) {
1370 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_REQUEST,
1371 13b2bc37 2022-10-23 stsp "invalid pack file handle during pack verification");
1373 13b2bc37 2022-10-23 stsp if (client->packidx_fd == -1) {
1374 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_BAD_REQUEST,
1375 13b2bc37 2022-10-23 stsp "invalid pack index handle during pack verification");
1378 13b2bc37 2022-10-23 stsp if (fstat(client->packidx_fd, &sb) == -1)
1379 13b2bc37 2022-10-23 stsp return got_error_from_errno("pack index fstat");
1381 13b2bc37 2022-10-23 stsp packidx = malloc(sizeof(*packidx));
1382 13b2bc37 2022-10-23 stsp memset(packidx, 0, sizeof(*packidx));
1383 13b2bc37 2022-10-23 stsp packidx->fd = client->packidx_fd;
1384 13b2bc37 2022-10-23 stsp client->packidx_fd = -1;
1385 13b2bc37 2022-10-23 stsp packidx->len = sb.st_size;
1387 13b2bc37 2022-10-23 stsp err = got_packidx_init_hdr(packidx, 1, client->pack.filesize);
1389 13b2bc37 2022-10-23 stsp return err;
1391 13b2bc37 2022-10-23 stsp STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1392 9a8e357c 2023-01-28 op if (ref_update->delete_ref)
1395 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_tag_namespaces, entry) {
1396 9afa3de2 2023-04-04 stsp err = protect_tag_namespace(pe->path, &client->pack,
1397 9afa3de2 2023-04-04 stsp packidx, ref_update);
1399 9afa3de2 2023-04-04 stsp goto done;
1403 9afa3de2 2023-04-04 stsp * Objects which already exist in our repository need
1404 9afa3de2 2023-04-04 stsp * not be present in the pack file.
1406 9afa3de2 2023-04-04 stsp err = got_object_open(&obj, repo_write.repo,
1407 9afa3de2 2023-04-04 stsp &ref_update->new_id);
1408 9afa3de2 2023-04-04 stsp if (err && err->code != GOT_ERR_NO_OBJ)
1409 13b2bc37 2022-10-23 stsp goto done;
1410 9afa3de2 2023-04-04 stsp err = NULL;
1411 9afa3de2 2023-04-04 stsp if (obj) {
1412 9afa3de2 2023-04-04 stsp got_object_close(obj);
1413 9afa3de2 2023-04-04 stsp obj = NULL;
1415 9afa3de2 2023-04-04 stsp int idx = got_packidx_get_object_idx(packidx,
1416 9afa3de2 2023-04-04 stsp &ref_update->new_id);
1417 9afa3de2 2023-04-04 stsp if (idx == -1) {
1418 9afa3de2 2023-04-04 stsp got_sha1_digest_to_str(ref_update->new_id.sha1,
1419 9afa3de2 2023-04-04 stsp hex, sizeof(hex));
1420 9afa3de2 2023-04-04 stsp err = got_error_fmt(GOT_ERR_BAD_PACKFILE,
1421 9afa3de2 2023-04-04 stsp "object %s is missing from pack file",
1423 9afa3de2 2023-04-04 stsp goto done;
1427 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_branch_namespaces,
1429 9afa3de2 2023-04-04 stsp err = protect_branch_namespace(pe->path,
1430 9afa3de2 2023-04-04 stsp &client->pack, packidx, ref_update);
1432 9afa3de2 2023-04-04 stsp goto done;
1434 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_branches, entry) {
1435 9afa3de2 2023-04-04 stsp err = protect_branch(pe->path, &client->pack,
1436 9afa3de2 2023-04-04 stsp packidx, ref_update);
1438 9afa3de2 2023-04-04 stsp goto done;
1443 13b2bc37 2022-10-23 stsp close_err = got_packidx_close(packidx);
1444 13b2bc37 2022-10-23 stsp if (close_err && err == NULL)
1445 13b2bc37 2022-10-23 stsp err = close_err;
1446 13b2bc37 2022-10-23 stsp free(id_str);
1448 9afa3de2 2023-04-04 stsp got_object_close(obj);
1449 13b2bc37 2022-10-23 stsp return err;
1452 13b2bc37 2022-10-23 stsp static const struct got_error *
1453 9afa3de2 2023-04-04 stsp protect_refs_from_deletion(void)
1455 9afa3de2 2023-04-04 stsp const struct got_error *err = NULL;
1456 9afa3de2 2023-04-04 stsp struct repo_write_client *client = &repo_write_client;
1457 9afa3de2 2023-04-04 stsp struct gotd_ref_update *ref_update;
1458 9afa3de2 2023-04-04 stsp struct got_pathlist_entry *pe;
1459 9afa3de2 2023-04-04 stsp const char *refname;
1461 9afa3de2 2023-04-04 stsp STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1462 9afa3de2 2023-04-04 stsp if (!ref_update->delete_ref)
1465 9afa3de2 2023-04-04 stsp refname = got_ref_get_name(ref_update->ref);
1467 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_tag_namespaces, entry) {
1468 9afa3de2 2023-04-04 stsp err = protect_ref_namespace(refname, pe->path);
1470 9afa3de2 2023-04-04 stsp return err;
1473 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_branch_namespaces,
1475 9afa3de2 2023-04-04 stsp err = protect_ref_namespace(refname, pe->path);
1477 9afa3de2 2023-04-04 stsp return err;
1480 9afa3de2 2023-04-04 stsp TAILQ_FOREACH(pe, repo_write.protected_branches, entry) {
1481 9afa3de2 2023-04-04 stsp if (strcmp(refname, pe->path) == 0) {
1482 9afa3de2 2023-04-04 stsp return got_error_fmt(GOT_ERR_REF_PROTECTED,
1483 9afa3de2 2023-04-04 stsp "%s", refname);
1488 9afa3de2 2023-04-04 stsp return NULL;
1491 9afa3de2 2023-04-04 stsp static const struct got_error *
1492 1a52c9bf 2022-12-30 stsp install_packfile(struct gotd_imsgev *iev)
1494 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1495 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_install inst;
1498 13b2bc37 2022-10-23 stsp memset(&inst, 0, sizeof(inst));
1499 13b2bc37 2022-10-23 stsp inst.client_id = client->id;
1500 13b2bc37 2022-10-23 stsp memcpy(inst.pack_sha1, client->pack_sha1, SHA1_DIGEST_LENGTH);
1502 13b2bc37 2022-10-23 stsp ret = gotd_imsg_compose_event(iev, GOTD_IMSG_PACKFILE_INSTALL,
1503 13b2bc37 2022-10-23 stsp PROC_REPO_WRITE, -1, &inst, sizeof(inst));
1504 13b2bc37 2022-10-23 stsp if (ret == -1)
1505 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_compose PACKFILE_INSTALL");
1507 13b2bc37 2022-10-23 stsp return NULL;
1510 13b2bc37 2022-10-23 stsp static const struct got_error *
1511 1a52c9bf 2022-12-30 stsp send_ref_updates_start(int nref_updates, struct gotd_imsgev *iev)
1513 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1514 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_updates_start istart;
1517 13b2bc37 2022-10-23 stsp memset(&istart, 0, sizeof(istart));
1518 13b2bc37 2022-10-23 stsp istart.nref_updates = nref_updates;
1519 13b2bc37 2022-10-23 stsp istart.client_id = client->id;
1521 13b2bc37 2022-10-23 stsp ret = gotd_imsg_compose_event(iev, GOTD_IMSG_REF_UPDATES_START,
1522 13b2bc37 2022-10-23 stsp PROC_REPO_WRITE, -1, &istart, sizeof(istart));
1523 13b2bc37 2022-10-23 stsp if (ret == -1)
1524 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_compose REF_UPDATES_START");
1526 13b2bc37 2022-10-23 stsp return NULL;
1530 13b2bc37 2022-10-23 stsp static const struct got_error *
1531 1a52c9bf 2022-12-30 stsp send_ref_update(struct gotd_ref_update *ref_update, struct gotd_imsgev *iev)
1533 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1534 13b2bc37 2022-10-23 stsp struct gotd_imsg_ref_update iref;
1535 13b2bc37 2022-10-23 stsp const char *refname = got_ref_get_name(ref_update->ref);
1536 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
1537 13b2bc37 2022-10-23 stsp size_t len;
1539 13b2bc37 2022-10-23 stsp memset(&iref, 0, sizeof(iref));
1540 13b2bc37 2022-10-23 stsp memcpy(iref.old_id, ref_update->old_id.sha1, SHA1_DIGEST_LENGTH);
1541 13b2bc37 2022-10-23 stsp memcpy(iref.new_id, ref_update->new_id.sha1, SHA1_DIGEST_LENGTH);
1542 13b2bc37 2022-10-23 stsp iref.ref_is_new = ref_update->ref_is_new;
1543 9a8e357c 2023-01-28 op iref.delete_ref = ref_update->delete_ref;
1544 13b2bc37 2022-10-23 stsp iref.client_id = client->id;
1545 13b2bc37 2022-10-23 stsp iref.name_len = strlen(refname);
1547 13b2bc37 2022-10-23 stsp len = sizeof(iref) + iref.name_len;
1548 13b2bc37 2022-10-23 stsp wbuf = imsg_create(&iev->ibuf, GOTD_IMSG_REF_UPDATE, PROC_REPO_WRITE,
1549 13b2bc37 2022-10-23 stsp repo_write.pid, len);
1550 13b2bc37 2022-10-23 stsp if (wbuf == NULL)
1551 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_create REF_UPDATE");
1553 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &iref, sizeof(iref)) == -1)
1554 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF_UPDATE");
1555 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, refname, iref.name_len) == -1)
1556 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF_UPDATE");
1558 13b2bc37 2022-10-23 stsp imsg_close(&iev->ibuf, wbuf);
1560 13b2bc37 2022-10-23 stsp gotd_imsg_event_add(iev);
1561 13b2bc37 2022-10-23 stsp return NULL;
1564 13b2bc37 2022-10-23 stsp static const struct got_error *
1565 1a52c9bf 2022-12-30 stsp update_refs(struct gotd_imsgev *iev)
1567 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
1568 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1569 13b2bc37 2022-10-23 stsp struct gotd_ref_update *ref_update;
1571 1a52c9bf 2022-12-30 stsp err = send_ref_updates_start(client->nref_updates, iev);
1573 13b2bc37 2022-10-23 stsp return err;
1575 13b2bc37 2022-10-23 stsp STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1576 1a52c9bf 2022-12-30 stsp err = send_ref_update(ref_update, iev);
1578 13b2bc37 2022-10-23 stsp goto done;
1581 13b2bc37 2022-10-23 stsp return err;
1584 13b2bc37 2022-10-23 stsp static const struct got_error *
1585 1a52c9bf 2022-12-30 stsp receive_pack_pipe(struct imsg *imsg, struct gotd_imsgev *iev)
1587 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1588 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_pipe ireq;
1589 13b2bc37 2022-10-23 stsp size_t datalen;
1591 9cbac887 2023-04-20 stsp log_debug("receiving pack pipe descriptor");
1593 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1594 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
1595 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
1596 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
1598 1a52c9bf 2022-12-30 stsp if (client->pack_pipe != -1)
1599 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
1601 2c52c623 2024-01-30 op client->pack_pipe = imsg_get_fd(imsg);
1602 2c52c623 2024-01-30 op if (client->pack_pipe == -1)
1603 2c52c623 2024-01-30 op return got_error(GOT_ERR_PRIVSEP_NO_FD);
1605 13b2bc37 2022-10-23 stsp return NULL;
1608 13b2bc37 2022-10-23 stsp static const struct got_error *
1609 1a52c9bf 2022-12-30 stsp receive_pack_idx(struct imsg *imsg, struct gotd_imsgev *iev)
1611 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1612 13b2bc37 2022-10-23 stsp struct gotd_imsg_packidx_file ireq;
1613 13b2bc37 2022-10-23 stsp size_t datalen;
1615 9cbac887 2023-04-20 stsp log_debug("receiving pack index output file");
1617 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1618 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
1619 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
1620 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
1622 1a52c9bf 2022-12-30 stsp if (client->packidx_fd != -1)
1623 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
1625 2c52c623 2024-01-30 op client->packidx_fd = imsg_get_fd(imsg);
1626 2c52c623 2024-01-30 op if (client->packidx_fd == -1)
1627 2c52c623 2024-01-30 op return got_error(GOT_ERR_PRIVSEP_NO_FD);
1629 13b2bc37 2022-10-23 stsp return NULL;
1632 13b2bc37 2022-10-23 stsp static void
1633 ae7c1b78 2023-01-10 stsp repo_write_dispatch_session(int fd, short event, void *arg)
1635 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
1636 13b2bc37 2022-10-23 stsp struct gotd_imsgev *iev = arg;
1637 13b2bc37 2022-10-23 stsp struct imsgbuf *ibuf = &iev->ibuf;
1638 13b2bc37 2022-10-23 stsp struct imsg imsg;
1639 1a52c9bf 2022-12-30 stsp struct repo_write_client *client = &repo_write_client;
1640 13b2bc37 2022-10-23 stsp ssize_t n;
1641 0ff2c315 2023-01-18 stsp int shut = 0, have_packfile = 0;
1643 13b2bc37 2022-10-23 stsp if (event & EV_READ) {
1644 13b2bc37 2022-10-23 stsp if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
1645 13b2bc37 2022-10-23 stsp fatal("imsg_read error");
1646 13b2bc37 2022-10-23 stsp if (n == 0) /* Connection closed. */
1650 13b2bc37 2022-10-23 stsp if (event & EV_WRITE) {
1651 13b2bc37 2022-10-23 stsp n = msgbuf_write(&ibuf->w);
1652 13b2bc37 2022-10-23 stsp if (n == -1 && errno != EAGAIN)
1653 13b2bc37 2022-10-23 stsp fatal("msgbuf_write");
1654 13b2bc37 2022-10-23 stsp if (n == 0) /* Connection closed. */
1658 13b2bc37 2022-10-23 stsp for (;;) {
1659 13b2bc37 2022-10-23 stsp if ((n = imsg_get(ibuf, &imsg)) == -1)
1660 13b2bc37 2022-10-23 stsp fatal("%s: imsg_get error", __func__);
1661 13b2bc37 2022-10-23 stsp if (n == 0) /* No more messages. */
1664 1a52c9bf 2022-12-30 stsp if (imsg.hdr.type != GOTD_IMSG_LIST_REFS_INTERNAL &&
1665 1a52c9bf 2022-12-30 stsp client->id == 0) {
1666 1a52c9bf 2022-12-30 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1670 13b2bc37 2022-10-23 stsp switch (imsg.hdr.type) {
1671 13b2bc37 2022-10-23 stsp case GOTD_IMSG_LIST_REFS_INTERNAL:
1672 1a52c9bf 2022-12-30 stsp err = list_refs(&imsg);
1674 88f6dccd 2023-03-04 op log_warnx("ls-refs: %s", err->msg);
1676 13b2bc37 2022-10-23 stsp case GOTD_IMSG_REF_UPDATE:
1677 1a52c9bf 2022-12-30 stsp err = recv_ref_update(&imsg);
1679 88f6dccd 2023-03-04 op log_warnx("ref-update: %s", err->msg);
1681 13b2bc37 2022-10-23 stsp case GOTD_IMSG_PACKFILE_PIPE:
1682 1a52c9bf 2022-12-30 stsp err = receive_pack_pipe(&imsg, iev);
1683 13b2bc37 2022-10-23 stsp if (err) {
1684 88f6dccd 2023-03-04 op log_warnx("receiving pack pipe: %s", err->msg);
1688 13b2bc37 2022-10-23 stsp case GOTD_IMSG_PACKIDX_FILE:
1689 1a52c9bf 2022-12-30 stsp err = receive_pack_idx(&imsg, iev);
1690 13b2bc37 2022-10-23 stsp if (err) {
1691 88f6dccd 2023-03-04 op log_warnx("receiving pack index: %s",
1696 13b2bc37 2022-10-23 stsp case GOTD_IMSG_RECV_PACKFILE:
1697 9afa3de2 2023-04-04 stsp err = protect_refs_from_deletion();
1700 0ff2c315 2023-01-18 stsp err = recv_packfile(&have_packfile, &imsg);
1701 13b2bc37 2022-10-23 stsp if (err) {
1702 88f6dccd 2023-03-04 op log_warnx("receive packfile: %s", err->msg);
1705 0ff2c315 2023-01-18 stsp if (have_packfile) {
1706 0ff2c315 2023-01-18 stsp err = verify_packfile();
1707 0ff2c315 2023-01-18 stsp if (err) {
1708 88f6dccd 2023-03-04 op log_warnx("verify packfile: %s",
1712 0ff2c315 2023-01-18 stsp err = install_packfile(iev);
1713 0ff2c315 2023-01-18 stsp if (err) {
1714 88f6dccd 2023-03-04 op log_warnx("install packfile: %s",
1719 1a52c9bf 2022-12-30 stsp err = update_refs(iev);
1720 13b2bc37 2022-10-23 stsp if (err) {
1721 88f6dccd 2023-03-04 op log_warnx("update refs: %s", err->msg);
1725 88f6dccd 2023-03-04 op log_debug("unexpected imsg %d", imsg.hdr.type);
1729 ae7c1b78 2023-01-10 stsp imsg_free(&imsg);
1732 ae7c1b78 2023-01-10 stsp if (!shut && check_cancelled(NULL) == NULL) {
1733 ae7c1b78 2023-01-10 stsp if (err &&
1734 ae7c1b78 2023-01-10 stsp gotd_imsg_send_error_event(iev, PROC_REPO_WRITE,
1735 ae7c1b78 2023-01-10 stsp client->id, err) == -1) {
1736 ae7c1b78 2023-01-10 stsp log_warnx("could not send error to parent: %s",
1737 ae7c1b78 2023-01-10 stsp err->msg);
1739 ae7c1b78 2023-01-10 stsp gotd_imsg_event_add(iev);
1741 ae7c1b78 2023-01-10 stsp /* This pipe is dead. Remove its event handler */
1742 ae7c1b78 2023-01-10 stsp event_del(&iev->ev);
1743 ae7c1b78 2023-01-10 stsp event_loopexit(NULL);
1747 ae7c1b78 2023-01-10 stsp static const struct got_error *
1748 ae7c1b78 2023-01-10 stsp recv_connect(struct imsg *imsg)
1750 ae7c1b78 2023-01-10 stsp struct gotd_imsgev *iev = &repo_write.session_iev;
1751 ae7c1b78 2023-01-10 stsp size_t datalen;
1753 ae7c1b78 2023-01-10 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1754 ae7c1b78 2023-01-10 stsp if (datalen != 0)
1755 ae7c1b78 2023-01-10 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
1757 ae7c1b78 2023-01-10 stsp if (repo_write.session_fd != -1)
1758 ae7c1b78 2023-01-10 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
1760 2c52c623 2024-01-30 op repo_write.session_fd = imsg_get_fd(imsg);
1761 2c52c623 2024-01-30 op if (repo_write.session_fd == -1)
1762 2c52c623 2024-01-30 op return got_error(GOT_ERR_PRIVSEP_NO_FD);
1764 ae7c1b78 2023-01-10 stsp imsg_init(&iev->ibuf, repo_write.session_fd);
1765 ae7c1b78 2023-01-10 stsp iev->handler = repo_write_dispatch_session;
1766 ae7c1b78 2023-01-10 stsp iev->events = EV_READ;
1767 ae7c1b78 2023-01-10 stsp iev->handler_arg = NULL;
1768 ae7c1b78 2023-01-10 stsp event_set(&iev->ev, iev->ibuf.fd, EV_READ,
1769 ae7c1b78 2023-01-10 stsp repo_write_dispatch_session, iev);
1770 ae7c1b78 2023-01-10 stsp gotd_imsg_event_add(iev);
1772 ae7c1b78 2023-01-10 stsp return NULL;
1775 ae7c1b78 2023-01-10 stsp static void
1776 ae7c1b78 2023-01-10 stsp repo_write_dispatch(int fd, short event, void *arg)
1778 ae7c1b78 2023-01-10 stsp const struct got_error *err = NULL;
1779 ae7c1b78 2023-01-10 stsp struct gotd_imsgev *iev = arg;
1780 ae7c1b78 2023-01-10 stsp struct imsgbuf *ibuf = &iev->ibuf;
1781 ae7c1b78 2023-01-10 stsp struct imsg imsg;
1782 ae7c1b78 2023-01-10 stsp ssize_t n;
1783 ae7c1b78 2023-01-10 stsp int shut = 0;
1784 ae7c1b78 2023-01-10 stsp struct repo_write_client *client = &repo_write_client;
1786 ae7c1b78 2023-01-10 stsp if (event & EV_READ) {
1787 ae7c1b78 2023-01-10 stsp if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
1788 ae7c1b78 2023-01-10 stsp fatal("imsg_read error");
1789 ae7c1b78 2023-01-10 stsp if (n == 0) /* Connection closed. */
1793 ae7c1b78 2023-01-10 stsp if (event & EV_WRITE) {
1794 ae7c1b78 2023-01-10 stsp n = msgbuf_write(&ibuf->w);
1795 ae7c1b78 2023-01-10 stsp if (n == -1 && errno != EAGAIN)
1796 ae7c1b78 2023-01-10 stsp fatal("msgbuf_write");
1797 ae7c1b78 2023-01-10 stsp if (n == 0) /* Connection closed. */
1801 ae7c1b78 2023-01-10 stsp while (err == NULL && check_cancelled(NULL) == NULL) {
1802 ae7c1b78 2023-01-10 stsp if ((n = imsg_get(ibuf, &imsg)) == -1)
1803 ae7c1b78 2023-01-10 stsp fatal("%s: imsg_get", __func__);
1804 ae7c1b78 2023-01-10 stsp if (n == 0) /* No more messages. */
1807 ae7c1b78 2023-01-10 stsp switch (imsg.hdr.type) {
1808 ae7c1b78 2023-01-10 stsp case GOTD_IMSG_CONNECT_REPO_CHILD:
1809 ae7c1b78 2023-01-10 stsp err = recv_connect(&imsg);
1812 88f6dccd 2023-03-04 op log_debug("unexpected imsg %d", imsg.hdr.type);
1816 13b2bc37 2022-10-23 stsp imsg_free(&imsg);
1819 13b2bc37 2022-10-23 stsp if (!shut && check_cancelled(NULL) == NULL) {
1820 13b2bc37 2022-10-23 stsp if (err &&
1821 13b2bc37 2022-10-23 stsp gotd_imsg_send_error_event(iev, PROC_REPO_WRITE,
1822 1a52c9bf 2022-12-30 stsp client->id, err) == -1) {
1823 13b2bc37 2022-10-23 stsp log_warnx("could not send error to parent: %s",
1824 13b2bc37 2022-10-23 stsp err->msg);
1826 13b2bc37 2022-10-23 stsp gotd_imsg_event_add(iev);
1828 13b2bc37 2022-10-23 stsp /* This pipe is dead. Remove its event handler */
1829 13b2bc37 2022-10-23 stsp event_del(&iev->ev);
1830 13b2bc37 2022-10-23 stsp event_loopexit(NULL);
1835 eec68231 2022-12-14 stsp repo_write_main(const char *title, const char *repo_path,
1836 9afa3de2 2023-04-04 stsp int *pack_fds, int *temp_fds,
1837 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_tag_namespaces,
1838 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_branch_namespaces,
1839 9afa3de2 2023-04-04 stsp struct got_pathlist_head *protected_branches)
1841 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
1842 363c6230 2023-02-09 stsp struct repo_write_client *client = &repo_write_client;
1843 13b2bc37 2022-10-23 stsp struct gotd_imsgev iev;
1845 363c6230 2023-02-09 stsp client->fd = -1;
1846 363c6230 2023-02-09 stsp client->pack_pipe = -1;
1847 363c6230 2023-02-09 stsp client->packidx_fd = -1;
1848 363c6230 2023-02-09 stsp client->pack.fd = -1;
1850 13b2bc37 2022-10-23 stsp repo_write.title = title;
1851 13b2bc37 2022-10-23 stsp repo_write.pid = getpid();
1852 13b2bc37 2022-10-23 stsp repo_write.pack_fds = pack_fds;
1853 13b2bc37 2022-10-23 stsp repo_write.temp_fds = temp_fds;
1854 ae7c1b78 2023-01-10 stsp repo_write.session_fd = -1;
1855 ae7c1b78 2023-01-10 stsp repo_write.session_iev.ibuf.fd = -1;
1856 9afa3de2 2023-04-04 stsp repo_write.protected_tag_namespaces = protected_tag_namespaces;
1857 9afa3de2 2023-04-04 stsp repo_write.protected_branch_namespaces = protected_branch_namespaces;
1858 9afa3de2 2023-04-04 stsp repo_write.protected_branches = protected_branches;
1860 1a52c9bf 2022-12-30 stsp STAILQ_INIT(&repo_write_client.ref_updates);
1862 eec68231 2022-12-14 stsp err = got_repo_open(&repo_write.repo, repo_path, NULL, pack_fds);
1864 13b2bc37 2022-10-23 stsp goto done;
1865 13b2bc37 2022-10-23 stsp if (!got_repo_is_bare(repo_write.repo)) {
1866 13b2bc37 2022-10-23 stsp err = got_error_msg(GOT_ERR_NOT_GIT_REPO,
1867 13b2bc37 2022-10-23 stsp "bare git repository required");
1868 13b2bc37 2022-10-23 stsp goto done;
1871 13b2bc37 2022-10-23 stsp got_repo_temp_fds_set(repo_write.repo, temp_fds);
1873 13b2bc37 2022-10-23 stsp signal(SIGINT, catch_sigint);
1874 13b2bc37 2022-10-23 stsp signal(SIGTERM, catch_sigterm);
1875 13b2bc37 2022-10-23 stsp signal(SIGPIPE, SIG_IGN);
1876 13b2bc37 2022-10-23 stsp signal(SIGHUP, SIG_IGN);
1878 8c6fc146 2022-11-17 stsp imsg_init(&iev.ibuf, GOTD_FILENO_MSG_PIPE);
1879 13b2bc37 2022-10-23 stsp iev.handler = repo_write_dispatch;
1880 13b2bc37 2022-10-23 stsp iev.events = EV_READ;
1881 13b2bc37 2022-10-23 stsp iev.handler_arg = NULL;
1882 13b2bc37 2022-10-23 stsp event_set(&iev.ev, iev.ibuf.fd, EV_READ, repo_write_dispatch, &iev);
1883 b50a2b46 2022-12-29 stsp if (gotd_imsg_compose_event(&iev, GOTD_IMSG_REPO_CHILD_READY,
1884 b50a2b46 2022-12-29 stsp PROC_REPO_WRITE, -1, NULL, 0) == -1) {
1885 b50a2b46 2022-12-29 stsp err = got_error_from_errno("imsg compose REPO_CHILD_READY");
1886 13b2bc37 2022-10-23 stsp goto done;
1889 13b2bc37 2022-10-23 stsp event_dispatch();
1892 13b2bc37 2022-10-23 stsp log_warnx("%s: %s", title, err->msg);
1893 13b2bc37 2022-10-23 stsp repo_write_shutdown();
1897 13b2bc37 2022-10-23 stsp repo_write_shutdown(void)
1899 363c6230 2023-02-09 stsp struct repo_write_client *client = &repo_write_client;
1900 363c6230 2023-02-09 stsp struct gotd_ref_update *ref_update;
1902 4f8a1204 2023-03-04 op log_debug("shutting down");
1904 363c6230 2023-02-09 stsp while (!STAILQ_EMPTY(&client->ref_updates)) {
1905 363c6230 2023-02-09 stsp ref_update = STAILQ_FIRST(&client->ref_updates);
1906 363c6230 2023-02-09 stsp STAILQ_REMOVE_HEAD(&client->ref_updates, entry);
1907 363c6230 2023-02-09 stsp got_ref_close(ref_update->ref);
1908 363c6230 2023-02-09 stsp free(ref_update);
1911 363c6230 2023-02-09 stsp got_pack_close(&client->pack);
1912 363c6230 2023-02-09 stsp if (client->fd != -1)
1913 363c6230 2023-02-09 stsp close(client->fd);
1914 363c6230 2023-02-09 stsp if (client->pack_pipe != -1)
1915 363c6230 2023-02-09 stsp close(client->pack_pipe);
1916 363c6230 2023-02-09 stsp if (client->packidx_fd != -1)
1917 363c6230 2023-02-09 stsp close(client->packidx_fd);
1919 13b2bc37 2022-10-23 stsp if (repo_write.repo)
1920 13b2bc37 2022-10-23 stsp got_repo_close(repo_write.repo);
1921 13b2bc37 2022-10-23 stsp got_repo_pack_fds_close(repo_write.pack_fds);
1922 8193d041 2022-10-30 stsp got_repo_temp_fds_close(repo_write.temp_fds);
1923 ae7c1b78 2023-01-10 stsp if (repo_write.session_fd != -1)
1924 ae7c1b78 2023-01-10 stsp close(repo_write.session_fd);
