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/types.h>
20 13b2bc37 2022-10-23 stsp #include <event.h>
21 13b2bc37 2022-10-23 stsp #include <errno.h>
22 13b2bc37 2022-10-23 stsp #include <imsg.h>
23 13b2bc37 2022-10-23 stsp #include <signal.h>
24 13b2bc37 2022-10-23 stsp #include <stdlib.h>
25 13b2bc37 2022-10-23 stsp #include <limits.h>
26 13b2bc37 2022-10-23 stsp #include <poll.h>
27 13b2bc37 2022-10-23 stsp #include <sha1.h>
28 13b2bc37 2022-10-23 stsp #include <siphash.h>
29 13b2bc37 2022-10-23 stsp #include <stdio.h>
30 13b2bc37 2022-10-23 stsp #include <string.h>
31 13b2bc37 2022-10-23 stsp #include <unistd.h>
33 13b2bc37 2022-10-23 stsp #include "got_error.h"
34 13b2bc37 2022-10-23 stsp #include "got_cancel.h"
35 13b2bc37 2022-10-23 stsp #include "got_object.h"
36 13b2bc37 2022-10-23 stsp #include "got_repository.h"
37 13b2bc37 2022-10-23 stsp #include "got_reference.h"
38 13b2bc37 2022-10-23 stsp #include "got_repository_admin.h"
40 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
41 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
42 13b2bc37 2022-10-23 stsp #include "got_lib_object_idset.h"
43 13b2bc37 2022-10-23 stsp #include "got_lib_sha1.h"
44 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
45 13b2bc37 2022-10-23 stsp #include "got_lib_ratelimit.h"
46 13b2bc37 2022-10-23 stsp #include "got_lib_pack_create.h"
47 13b2bc37 2022-10-23 stsp #include "got_lib_poll.h"
49 13b2bc37 2022-10-23 stsp #include "log.h"
50 13b2bc37 2022-10-23 stsp #include "gotd.h"
51 13b2bc37 2022-10-23 stsp #include "repo_read.h"
53 13b2bc37 2022-10-23 stsp #ifndef nitems
54 13b2bc37 2022-10-23 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
57 13b2bc37 2022-10-23 stsp static struct repo_read {
59 13b2bc37 2022-10-23 stsp const char *title;
60 13b2bc37 2022-10-23 stsp struct got_repository *repo;
61 13b2bc37 2022-10-23 stsp int *pack_fds;
62 13b2bc37 2022-10-23 stsp int *temp_fds;
63 13b2bc37 2022-10-23 stsp } repo_read;
65 13b2bc37 2022-10-23 stsp struct repo_read_client {
66 13b2bc37 2022-10-23 stsp STAILQ_ENTRY(repo_read_client) entry;
67 13b2bc37 2022-10-23 stsp uint32_t id;
69 13b2bc37 2022-10-23 stsp int delta_cache_fd;
70 13b2bc37 2022-10-23 stsp int report_progress;
71 13b2bc37 2022-10-23 stsp int pack_pipe[2];
72 13b2bc37 2022-10-23 stsp struct gotd_object_id_array want_ids;
73 13b2bc37 2022-10-23 stsp struct gotd_object_id_array have_ids;
75 13b2bc37 2022-10-23 stsp STAILQ_HEAD(repo_read_clients, repo_read_client);
77 13b2bc37 2022-10-23 stsp static struct repo_read_clients repo_read_clients[GOTD_CLIENT_TABLE_SIZE];
78 13b2bc37 2022-10-23 stsp static SIPHASH_KEY clients_hash_key;
80 13b2bc37 2022-10-23 stsp static uint64_t
81 13b2bc37 2022-10-23 stsp client_hash(uint32_t client_id)
83 13b2bc37 2022-10-23 stsp return SipHash24(&clients_hash_key, &client_id, sizeof(client_id));
87 13b2bc37 2022-10-23 stsp add_client(struct repo_read_client *client, uint32_t client_id, int fd)
89 13b2bc37 2022-10-23 stsp uint64_t slot;
91 13b2bc37 2022-10-23 stsp client->id = client_id;
92 13b2bc37 2022-10-23 stsp client->fd = fd;
93 13b2bc37 2022-10-23 stsp client->delta_cache_fd = -1;
94 13b2bc37 2022-10-23 stsp client->pack_pipe[0] = -1;
95 13b2bc37 2022-10-23 stsp client->pack_pipe[1] = -1;
96 13b2bc37 2022-10-23 stsp slot = client_hash(client->id) % nitems(repo_read_clients);
97 13b2bc37 2022-10-23 stsp STAILQ_INSERT_HEAD(&repo_read_clients[slot], client, entry);
100 13b2bc37 2022-10-23 stsp static struct repo_read_client *
101 13b2bc37 2022-10-23 stsp find_client(uint32_t client_id)
103 13b2bc37 2022-10-23 stsp uint64_t slot;
104 13b2bc37 2022-10-23 stsp struct repo_read_client *c;
106 13b2bc37 2022-10-23 stsp slot = client_hash(client_id) % nitems(repo_read_clients);
107 13b2bc37 2022-10-23 stsp STAILQ_FOREACH(c, &repo_read_clients[slot], entry) {
108 13b2bc37 2022-10-23 stsp if (c->id == client_id)
112 13b2bc37 2022-10-23 stsp return NULL;
115 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigint_received;
116 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigterm_received;
118 13b2bc37 2022-10-23 stsp static void
119 13b2bc37 2022-10-23 stsp catch_sigint(int signo)
121 13b2bc37 2022-10-23 stsp sigint_received = 1;
124 13b2bc37 2022-10-23 stsp static void
125 13b2bc37 2022-10-23 stsp catch_sigterm(int signo)
127 13b2bc37 2022-10-23 stsp sigterm_received = 1;
130 13b2bc37 2022-10-23 stsp static const struct got_error *
131 13b2bc37 2022-10-23 stsp check_cancelled(void *arg)
133 13b2bc37 2022-10-23 stsp if (sigint_received || sigterm_received)
134 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CANCELLED);
136 13b2bc37 2022-10-23 stsp return NULL;
139 13b2bc37 2022-10-23 stsp static const struct got_error *
140 13b2bc37 2022-10-23 stsp send_symref(struct got_reference *symref, struct imsgbuf *ibuf)
142 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
143 13b2bc37 2022-10-23 stsp struct gotd_imsg_symref isymref;
144 13b2bc37 2022-10-23 stsp const char *refname = got_ref_get_name(symref);
145 13b2bc37 2022-10-23 stsp const char *target = got_ref_get_symref_target(symref);
146 13b2bc37 2022-10-23 stsp size_t len;
147 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
148 13b2bc37 2022-10-23 stsp struct got_object_id *target_id;
150 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&target_id, repo_read.repo, symref);
152 13b2bc37 2022-10-23 stsp return err;
154 13b2bc37 2022-10-23 stsp memset(&isymref, 0, sizeof(isymref));
155 13b2bc37 2022-10-23 stsp isymref.name_len = strlen(refname);
156 13b2bc37 2022-10-23 stsp isymref.target_len = strlen(target);
157 13b2bc37 2022-10-23 stsp memcpy(isymref.target_id, target_id->sha1, sizeof(isymref.target_id));
159 13b2bc37 2022-10-23 stsp len = sizeof(isymref) + isymref.name_len + isymref.target_len;
160 13b2bc37 2022-10-23 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
161 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_NO_SPACE);
165 13b2bc37 2022-10-23 stsp wbuf = imsg_create(ibuf, GOTD_IMSG_SYMREF, 0, 0, len);
166 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
167 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create SYMREF");
171 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &isymref, sizeof(isymref)) == -1) {
172 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add SYMREF");
175 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, refname, isymref.name_len) == -1) {
176 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add SYMREF");
179 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, target, isymref.target_len) == -1) {
180 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add SYMREF");
184 13b2bc37 2022-10-23 stsp wbuf->fd = -1;
185 13b2bc37 2022-10-23 stsp imsg_close(ibuf, wbuf);
187 13b2bc37 2022-10-23 stsp free(target_id);
188 13b2bc37 2022-10-23 stsp return err;
191 13b2bc37 2022-10-23 stsp static const struct got_error *
192 13b2bc37 2022-10-23 stsp send_peeled_tag_ref(struct got_reference *ref, struct got_object *obj,
193 13b2bc37 2022-10-23 stsp struct imsgbuf *ibuf)
195 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
196 13b2bc37 2022-10-23 stsp struct got_tag_object *tag;
197 13b2bc37 2022-10-23 stsp size_t namelen, len;
198 13b2bc37 2022-10-23 stsp char *peeled_refname = NULL;
199 13b2bc37 2022-10-23 stsp struct got_object_id *id;
200 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
202 13b2bc37 2022-10-23 stsp err = got_object_tag_open(&tag, repo_read.repo, obj);
204 13b2bc37 2022-10-23 stsp return err;
206 13b2bc37 2022-10-23 stsp if (asprintf(&peeled_refname, "%s^{}", got_ref_get_name(ref)) == -1) {
207 13b2bc37 2022-10-23 stsp err = got_error_from_errno("asprintf");
211 13b2bc37 2022-10-23 stsp id = got_object_tag_get_object_id(tag);
212 13b2bc37 2022-10-23 stsp namelen = strlen(peeled_refname);
214 13b2bc37 2022-10-23 stsp len = sizeof(struct gotd_imsg_ref) + namelen;
215 13b2bc37 2022-10-23 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
216 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_NO_SPACE);
220 13b2bc37 2022-10-23 stsp wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
221 13b2bc37 2022-10-23 stsp repo_read.pid, len);
222 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
223 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create MREF");
227 13b2bc37 2022-10-23 stsp /* Keep in sync with struct gotd_imsg_ref definition. */
228 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
229 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
232 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1) {
233 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
236 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, peeled_refname, namelen) == -1) {
237 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_add REF");
241 13b2bc37 2022-10-23 stsp wbuf->fd = -1;
242 13b2bc37 2022-10-23 stsp imsg_close(ibuf, wbuf);
244 13b2bc37 2022-10-23 stsp got_object_tag_close(tag);
245 13b2bc37 2022-10-23 stsp return err;
248 13b2bc37 2022-10-23 stsp static const struct got_error *
249 13b2bc37 2022-10-23 stsp send_ref(struct got_reference *ref, struct imsgbuf *ibuf)
251 13b2bc37 2022-10-23 stsp const struct got_error *err;
252 13b2bc37 2022-10-23 stsp const char *refname = got_ref_get_name(ref);
253 13b2bc37 2022-10-23 stsp size_t namelen;
254 13b2bc37 2022-10-23 stsp struct got_object_id *id = NULL;
255 13b2bc37 2022-10-23 stsp struct got_object *obj = NULL;
256 13b2bc37 2022-10-23 stsp size_t len;
257 13b2bc37 2022-10-23 stsp struct ibuf *wbuf;
259 13b2bc37 2022-10-23 stsp namelen = strlen(refname);
261 13b2bc37 2022-10-23 stsp len = sizeof(struct gotd_imsg_ref) + namelen;
262 13b2bc37 2022-10-23 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
263 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NO_SPACE);
265 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&id, repo_read.repo, ref);
267 13b2bc37 2022-10-23 stsp return err;
269 13b2bc37 2022-10-23 stsp wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
270 13b2bc37 2022-10-23 stsp repo_read.pid, len);
271 13b2bc37 2022-10-23 stsp if (wbuf == NULL) {
272 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_create REF");
276 13b2bc37 2022-10-23 stsp /* Keep in sync with struct gotd_imsg_ref definition. */
277 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
278 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
279 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1)
280 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
281 13b2bc37 2022-10-23 stsp if (imsg_add(wbuf, refname, namelen) == -1)
282 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg_add REF");
284 13b2bc37 2022-10-23 stsp wbuf->fd = -1;
285 13b2bc37 2022-10-23 stsp imsg_close(ibuf, wbuf);
287 13b2bc37 2022-10-23 stsp err = got_object_open(&obj, repo_read.repo, id);
290 13b2bc37 2022-10-23 stsp if (obj->type == GOT_OBJ_TYPE_TAG)
291 13b2bc37 2022-10-23 stsp err = send_peeled_tag_ref(ref, obj, ibuf);
294 13b2bc37 2022-10-23 stsp got_object_close(obj);
296 13b2bc37 2022-10-23 stsp return err;
299 13b2bc37 2022-10-23 stsp static const struct got_error *
300 13b2bc37 2022-10-23 stsp list_refs(struct repo_read_client **client, struct imsg *imsg)
302 13b2bc37 2022-10-23 stsp const struct got_error *err;
303 13b2bc37 2022-10-23 stsp struct got_reflist_head refs;
304 13b2bc37 2022-10-23 stsp struct got_reflist_entry *re;
305 13b2bc37 2022-10-23 stsp struct gotd_imsg_list_refs_internal ireq;
306 13b2bc37 2022-10-23 stsp size_t datalen;
307 13b2bc37 2022-10-23 stsp struct gotd_imsg_reflist irefs;
308 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
309 13b2bc37 2022-10-23 stsp int client_fd = imsg->fd;
311 13b2bc37 2022-10-23 stsp TAILQ_INIT(&refs);
313 13b2bc37 2022-10-23 stsp if (client_fd == -1)
314 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
316 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
317 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
318 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
319 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
321 13b2bc37 2022-10-23 stsp *client = find_client(ireq.client_id);
322 13b2bc37 2022-10-23 stsp if (*client)
323 13b2bc37 2022-10-23 stsp return got_error_msg(GOT_ERR_CLIENT_ID, "duplicate client ID");
325 13b2bc37 2022-10-23 stsp *client = calloc(1, sizeof(**client));
326 13b2bc37 2022-10-23 stsp if (*client == NULL)
327 13b2bc37 2022-10-23 stsp return got_error_from_errno("calloc");
328 13b2bc37 2022-10-23 stsp add_client(*client, ireq.client_id, client_fd);
330 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, client_fd);
332 13b2bc37 2022-10-23 stsp err = got_ref_list(&refs, repo_read.repo, "",
333 13b2bc37 2022-10-23 stsp got_ref_cmp_by_name, NULL);
335 13b2bc37 2022-10-23 stsp return err;
337 13b2bc37 2022-10-23 stsp memset(&irefs, 0, sizeof(irefs));
338 13b2bc37 2022-10-23 stsp TAILQ_FOREACH(re, &refs, entry) {
339 13b2bc37 2022-10-23 stsp struct got_object_id *id;
340 13b2bc37 2022-10-23 stsp int obj_type;
342 13b2bc37 2022-10-23 stsp if (got_ref_is_symbolic(re->ref)) {
343 13b2bc37 2022-10-23 stsp const char *refname = got_ref_get_name(re->ref);
344 13b2bc37 2022-10-23 stsp if (strcmp(refname, GOT_REF_HEAD) == 0)
345 13b2bc37 2022-10-23 stsp irefs.nrefs++;
349 13b2bc37 2022-10-23 stsp irefs.nrefs++;
351 13b2bc37 2022-10-23 stsp /* Account for a peeled tag refs. */
352 13b2bc37 2022-10-23 stsp err = got_ref_resolve(&id, repo_read.repo, re->ref);
355 13b2bc37 2022-10-23 stsp err = got_object_get_type(&obj_type, repo_read.repo, id);
359 13b2bc37 2022-10-23 stsp if (obj_type == GOT_OBJ_TYPE_TAG)
360 13b2bc37 2022-10-23 stsp irefs.nrefs++;
363 13b2bc37 2022-10-23 stsp if (imsg_compose(&ibuf, GOTD_IMSG_REFLIST, PROC_REPO_READ,
364 13b2bc37 2022-10-23 stsp repo_read.pid, -1, &irefs, sizeof(irefs)) == -1) {
365 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_compose REFLIST");
370 13b2bc37 2022-10-23 stsp * Send the HEAD symref first. In Git-protocol versions < 2
371 13b2bc37 2022-10-23 stsp * the HEAD symref must be announced on the initial line of
372 13b2bc37 2022-10-23 stsp * the server's ref advertisement.
373 13b2bc37 2022-10-23 stsp * For now, we do not advertise symrefs other than HEAD.
375 13b2bc37 2022-10-23 stsp TAILQ_FOREACH(re, &refs, entry) {
376 13b2bc37 2022-10-23 stsp if (!got_ref_is_symbolic(re->ref) ||
377 13b2bc37 2022-10-23 stsp strcmp(got_ref_get_name(re->ref), GOT_REF_HEAD) != 0)
379 13b2bc37 2022-10-23 stsp err = send_symref(re->ref, &ibuf);
384 13b2bc37 2022-10-23 stsp TAILQ_FOREACH(re, &refs, entry) {
385 13b2bc37 2022-10-23 stsp if (got_ref_is_symbolic(re->ref))
387 13b2bc37 2022-10-23 stsp err = send_ref(re->ref, &ibuf);
392 13b2bc37 2022-10-23 stsp err = gotd_imsg_flush(&ibuf);
394 13b2bc37 2022-10-23 stsp got_ref_list_free(&refs);
395 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
396 13b2bc37 2022-10-23 stsp return err;
399 13b2bc37 2022-10-23 stsp static const struct got_error *
400 13b2bc37 2022-10-23 stsp record_object_id(struct gotd_object_id_array *array, struct got_object_id *id)
402 13b2bc37 2022-10-23 stsp const size_t alloc_chunksz = 256;
404 13b2bc37 2022-10-23 stsp if (array->ids == NULL) {
405 13b2bc37 2022-10-23 stsp array->ids = reallocarray(NULL, alloc_chunksz,
406 13b2bc37 2022-10-23 stsp sizeof(*array->ids));
407 13b2bc37 2022-10-23 stsp if (array->ids == NULL)
408 13b2bc37 2022-10-23 stsp return got_error_from_errno("reallocarray");
409 13b2bc37 2022-10-23 stsp array->nalloc = alloc_chunksz;
410 13b2bc37 2022-10-23 stsp array->nids = 0;
411 13b2bc37 2022-10-23 stsp } else if (array->nalloc <= array->nids) {
412 13b2bc37 2022-10-23 stsp struct got_object_id **new;
413 13b2bc37 2022-10-23 stsp new = recallocarray(array->ids, array->nalloc,
414 13b2bc37 2022-10-23 stsp array->nalloc + alloc_chunksz, sizeof(*new));
415 13b2bc37 2022-10-23 stsp if (new == NULL)
416 13b2bc37 2022-10-23 stsp return got_error_from_errno("recallocarray");
417 13b2bc37 2022-10-23 stsp array->ids = new;
418 13b2bc37 2022-10-23 stsp array->nalloc += alloc_chunksz;
421 13b2bc37 2022-10-23 stsp array->ids[array->nids] = got_object_id_dup(id);
422 13b2bc37 2022-10-23 stsp if (array->ids[array->nids] == NULL)
423 13b2bc37 2022-10-23 stsp return got_error_from_errno("got_object_id_dup");
424 13b2bc37 2022-10-23 stsp array->nids++;
425 13b2bc37 2022-10-23 stsp return NULL;
428 13b2bc37 2022-10-23 stsp static void
429 13b2bc37 2022-10-23 stsp free_object_ids(struct gotd_object_id_array *array)
433 13b2bc37 2022-10-23 stsp for (i = 0; i < array->nids; i++)
434 13b2bc37 2022-10-23 stsp free(array->ids[i]);
435 13b2bc37 2022-10-23 stsp free(array->ids);
437 13b2bc37 2022-10-23 stsp array->ids = NULL;
438 13b2bc37 2022-10-23 stsp array->nalloc = 0;
439 13b2bc37 2022-10-23 stsp array->nids = 0;
442 13b2bc37 2022-10-23 stsp static const struct got_error *
443 13b2bc37 2022-10-23 stsp recv_want(struct repo_read_client **client, struct imsg *imsg)
445 13b2bc37 2022-10-23 stsp const struct got_error *err;
446 13b2bc37 2022-10-23 stsp struct gotd_imsg_want iwant;
447 13b2bc37 2022-10-23 stsp size_t datalen;
448 13b2bc37 2022-10-23 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
449 13b2bc37 2022-10-23 stsp struct got_object_id id;
450 13b2bc37 2022-10-23 stsp int obj_type;
451 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
453 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
454 13b2bc37 2022-10-23 stsp if (datalen != sizeof(iwant))
455 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
456 13b2bc37 2022-10-23 stsp memcpy(&iwant, imsg->data, sizeof(iwant));
458 13b2bc37 2022-10-23 stsp memset(&id, 0, sizeof(id));
459 13b2bc37 2022-10-23 stsp memcpy(id.sha1, iwant.object_id, SHA1_DIGEST_LENGTH);
461 13b2bc37 2022-10-23 stsp if (log_getverbose() > 0 &&
462 13b2bc37 2022-10-23 stsp got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
463 13b2bc37 2022-10-23 stsp log_debug("client wants %s", hex);
465 13b2bc37 2022-10-23 stsp *client = find_client(iwant.client_id);
466 13b2bc37 2022-10-23 stsp if (*client == NULL)
467 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CLIENT_ID);
469 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, (*client)->fd);
471 13b2bc37 2022-10-23 stsp err = got_object_get_type(&obj_type, repo_read.repo, &id);
473 13b2bc37 2022-10-23 stsp return err;
475 13b2bc37 2022-10-23 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT &&
476 13b2bc37 2022-10-23 stsp obj_type != GOT_OBJ_TYPE_TAG)
477 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_OBJ_TYPE);
479 13b2bc37 2022-10-23 stsp err = record_object_id(&(*client)->want_ids, &id);
481 13b2bc37 2022-10-23 stsp return err;
483 13b2bc37 2022-10-23 stsp gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
484 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
485 13b2bc37 2022-10-23 stsp return err;
488 13b2bc37 2022-10-23 stsp static const struct got_error *
489 13b2bc37 2022-10-23 stsp recv_have(struct repo_read_client **client, struct imsg *imsg)
491 13b2bc37 2022-10-23 stsp const struct got_error *err;
492 13b2bc37 2022-10-23 stsp struct gotd_imsg_have ihave;
493 13b2bc37 2022-10-23 stsp size_t datalen;
494 13b2bc37 2022-10-23 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
495 13b2bc37 2022-10-23 stsp struct got_object_id id;
496 13b2bc37 2022-10-23 stsp int obj_type;
497 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
499 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
500 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ihave))
501 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
502 13b2bc37 2022-10-23 stsp memcpy(&ihave, imsg->data, sizeof(ihave));
504 13b2bc37 2022-10-23 stsp memset(&id, 0, sizeof(id));
505 13b2bc37 2022-10-23 stsp memcpy(id.sha1, ihave.object_id, SHA1_DIGEST_LENGTH);
507 13b2bc37 2022-10-23 stsp if (log_getverbose() > 0 &&
508 13b2bc37 2022-10-23 stsp got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
509 13b2bc37 2022-10-23 stsp log_debug("client has %s", hex);
511 13b2bc37 2022-10-23 stsp *client = find_client(ihave.client_id);
512 13b2bc37 2022-10-23 stsp if (*client == NULL)
513 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CLIENT_ID);
515 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, (*client)->fd);
517 13b2bc37 2022-10-23 stsp err = got_object_get_type(&obj_type, repo_read.repo, &id);
519 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_NO_OBJ) {
520 13b2bc37 2022-10-23 stsp gotd_imsg_send_nak(&id, &ibuf,
521 13b2bc37 2022-10-23 stsp PROC_REPO_READ, repo_read.pid);
522 13b2bc37 2022-10-23 stsp err = NULL;
527 13b2bc37 2022-10-23 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT &&
528 13b2bc37 2022-10-23 stsp obj_type != GOT_OBJ_TYPE_TAG) {
529 13b2bc37 2022-10-23 stsp gotd_imsg_send_nak(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
530 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_OBJ_TYPE);
534 13b2bc37 2022-10-23 stsp err = record_object_id(&(*client)->have_ids, &id);
536 13b2bc37 2022-10-23 stsp return err;
538 13b2bc37 2022-10-23 stsp gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
540 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
541 13b2bc37 2022-10-23 stsp return err;
544 13b2bc37 2022-10-23 stsp struct repo_read_pack_progress_arg {
545 13b2bc37 2022-10-23 stsp int report_progress;
546 13b2bc37 2022-10-23 stsp struct imsgbuf *ibuf;
547 13b2bc37 2022-10-23 stsp int sent_ready;
550 13b2bc37 2022-10-23 stsp static const struct got_error *
551 13b2bc37 2022-10-23 stsp pack_progress(void *arg, int ncolored, int nfound, int ntrees,
552 13b2bc37 2022-10-23 stsp off_t packfile_size, int ncommits, int nobj_total, int nobj_deltify,
553 13b2bc37 2022-10-23 stsp int nobj_written)
555 13b2bc37 2022-10-23 stsp struct repo_read_pack_progress_arg *a = arg;
556 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_progress iprog;
559 13b2bc37 2022-10-23 stsp if (!a->report_progress)
560 13b2bc37 2022-10-23 stsp return NULL;
561 13b2bc37 2022-10-23 stsp if (packfile_size > 0 && a->sent_ready)
562 13b2bc37 2022-10-23 stsp return NULL;
564 13b2bc37 2022-10-23 stsp memset(&iprog, 0, sizeof(iprog));
565 13b2bc37 2022-10-23 stsp iprog.ncolored = ncolored;
566 13b2bc37 2022-10-23 stsp iprog.nfound = nfound;
567 13b2bc37 2022-10-23 stsp iprog.ntrees = ntrees;
568 13b2bc37 2022-10-23 stsp iprog.packfile_size = packfile_size;
569 13b2bc37 2022-10-23 stsp iprog.ncommits = ncommits;
570 13b2bc37 2022-10-23 stsp iprog.nobj_total = nobj_total;
571 13b2bc37 2022-10-23 stsp iprog.nobj_deltify = nobj_deltify;
572 13b2bc37 2022-10-23 stsp iprog.nobj_written = nobj_written;
574 13b2bc37 2022-10-23 stsp /* Using synchronous writes since we are blocking the event loop. */
575 13b2bc37 2022-10-23 stsp if (packfile_size == 0) {
576 13b2bc37 2022-10-23 stsp ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_PROGRESS,
577 13b2bc37 2022-10-23 stsp PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
578 13b2bc37 2022-10-23 stsp if (ret == -1) {
579 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg compose "
580 13b2bc37 2022-10-23 stsp "PACKFILE_PROGRESS");
583 13b2bc37 2022-10-23 stsp a->sent_ready = 1;
584 13b2bc37 2022-10-23 stsp ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_READY,
585 13b2bc37 2022-10-23 stsp PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
586 13b2bc37 2022-10-23 stsp if (ret == -1) {
587 13b2bc37 2022-10-23 stsp return got_error_from_errno("imsg compose "
588 13b2bc37 2022-10-23 stsp "PACKFILE_READY");
592 13b2bc37 2022-10-23 stsp return gotd_imsg_flush(a->ibuf);
595 13b2bc37 2022-10-23 stsp static const struct got_error *
596 13b2bc37 2022-10-23 stsp receive_delta_cache_fd(struct repo_read_client **client, struct imsg *imsg,
597 13b2bc37 2022-10-23 stsp struct gotd_imsgev *iev)
599 13b2bc37 2022-10-23 stsp struct gotd_imsg_send_packfile ireq;
600 13b2bc37 2022-10-23 stsp size_t datalen;
602 13b2bc37 2022-10-23 stsp log_debug("receving delta cache file");
604 13b2bc37 2022-10-23 stsp if (imsg->fd == -1)
605 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
607 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
608 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
609 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
610 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
612 13b2bc37 2022-10-23 stsp *client = find_client(ireq.client_id);
613 13b2bc37 2022-10-23 stsp if (*client == NULL)
614 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CLIENT_ID);
616 13b2bc37 2022-10-23 stsp if ((*client)->delta_cache_fd != -1)
617 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
619 13b2bc37 2022-10-23 stsp (*client)->delta_cache_fd = imsg->fd;
620 13b2bc37 2022-10-23 stsp (*client)->report_progress = ireq.report_progress;
621 13b2bc37 2022-10-23 stsp return NULL;
624 13b2bc37 2022-10-23 stsp static const struct got_error *
625 13b2bc37 2022-10-23 stsp receive_pack_pipe(struct repo_read_client **client, struct imsg *imsg,
626 13b2bc37 2022-10-23 stsp struct gotd_imsgev *iev)
628 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_pipe ireq;
629 13b2bc37 2022-10-23 stsp size_t datalen;
631 13b2bc37 2022-10-23 stsp log_debug("receving pack pipe descriptor");
633 13b2bc37 2022-10-23 stsp if (imsg->fd == -1)
634 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
636 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
637 13b2bc37 2022-10-23 stsp if (datalen != sizeof(ireq))
638 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
639 13b2bc37 2022-10-23 stsp memcpy(&ireq, imsg->data, sizeof(ireq));
641 13b2bc37 2022-10-23 stsp *client = find_client(ireq.client_id);
642 13b2bc37 2022-10-23 stsp if (*client == NULL)
643 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CLIENT_ID);
644 13b2bc37 2022-10-23 stsp if ((*client)->pack_pipe[1] != -1)
645 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_MSG);
647 13b2bc37 2022-10-23 stsp if ((*client)->pack_pipe[0] == -1)
648 13b2bc37 2022-10-23 stsp (*client)->pack_pipe[0] = imsg->fd;
650 13b2bc37 2022-10-23 stsp (*client)->pack_pipe[1] = imsg->fd;
652 13b2bc37 2022-10-23 stsp return NULL;
655 13b2bc37 2022-10-23 stsp static const struct got_error *
656 13b2bc37 2022-10-23 stsp send_packfile(struct repo_read_client *client, struct imsg *imsg,
657 13b2bc37 2022-10-23 stsp struct gotd_imsgev *iev)
659 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
660 13b2bc37 2022-10-23 stsp struct gotd_imsg_packfile_done idone;
661 13b2bc37 2022-10-23 stsp uint8_t packsha1[SHA1_DIGEST_LENGTH];
662 13b2bc37 2022-10-23 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
663 13b2bc37 2022-10-23 stsp FILE *delta_cache = NULL;
664 13b2bc37 2022-10-23 stsp struct imsgbuf ibuf;
665 13b2bc37 2022-10-23 stsp struct repo_read_pack_progress_arg pa;
666 13b2bc37 2022-10-23 stsp struct got_ratelimit rl;
668 13b2bc37 2022-10-23 stsp log_debug("packfile request received");
670 13b2bc37 2022-10-23 stsp got_ratelimit_init(&rl, 2, 0);
672 13b2bc37 2022-10-23 stsp if (client->delta_cache_fd == -1 ||
673 13b2bc37 2022-10-23 stsp client->pack_pipe[0] == -1 ||
674 13b2bc37 2022-10-23 stsp client->pack_pipe[1] == -1)
675 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_NO_FD);
677 13b2bc37 2022-10-23 stsp imsg_init(&ibuf, client->fd);
679 13b2bc37 2022-10-23 stsp /* Send pack file pipe to gotsh(1). */
680 13b2bc37 2022-10-23 stsp if (imsg_compose(&ibuf, GOTD_IMSG_PACKFILE_PIPE, PROC_REPO_READ,
681 13b2bc37 2022-10-23 stsp repo_read.pid, client->pack_pipe[1], NULL, 0) == -1) {
682 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg_compose ACK");
686 13b2bc37 2022-10-23 stsp client->pack_pipe[1] = -1;
687 13b2bc37 2022-10-23 stsp err = gotd_imsg_flush(&ibuf);
691 13b2bc37 2022-10-23 stsp delta_cache = fdopen(client->delta_cache_fd, "w+");
692 13b2bc37 2022-10-23 stsp if (delta_cache == NULL) {
693 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fdopen");
696 13b2bc37 2022-10-23 stsp client->delta_cache_fd = -1;
698 13b2bc37 2022-10-23 stsp memset(&pa, 0, sizeof(pa));
699 13b2bc37 2022-10-23 stsp pa.ibuf = &ibuf;
700 13b2bc37 2022-10-23 stsp pa.report_progress = client->report_progress;
702 13b2bc37 2022-10-23 stsp err = got_pack_create(packsha1, client->pack_pipe[0], delta_cache,
703 13b2bc37 2022-10-23 stsp client->have_ids.ids, client->have_ids.nids,
704 13b2bc37 2022-10-23 stsp client->want_ids.ids, client->want_ids.nids,
705 13b2bc37 2022-10-23 stsp repo_read.repo, 0, 1, pack_progress, &pa, &rl,
706 13b2bc37 2022-10-23 stsp check_cancelled, NULL);
710 13b2bc37 2022-10-23 stsp if (log_getverbose() > 0 &&
711 13b2bc37 2022-10-23 stsp got_sha1_digest_to_str(packsha1, hex, sizeof(hex)))
712 13b2bc37 2022-10-23 stsp log_debug("sent pack-%s.pack", hex);
714 13b2bc37 2022-10-23 stsp memset(&idone, 0, sizeof(idone));
715 13b2bc37 2022-10-23 stsp idone.client_id = client->id;
716 13b2bc37 2022-10-23 stsp if (gotd_imsg_compose_event(iev, GOTD_IMSG_PACKFILE_DONE,
717 13b2bc37 2022-10-23 stsp PROC_REPO_READ, -1, &idone, sizeof(idone)) == -1)
718 13b2bc37 2022-10-23 stsp err = got_error_from_errno("imsg compose PACKFILE_DONE");
720 13b2bc37 2022-10-23 stsp if (delta_cache != NULL && fclose(delta_cache) == EOF && err == NULL)
721 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fclose");
722 13b2bc37 2022-10-23 stsp imsg_clear(&ibuf);
723 13b2bc37 2022-10-23 stsp return err;
726 13b2bc37 2022-10-23 stsp static const struct got_error *
727 13b2bc37 2022-10-23 stsp recv_disconnect(struct imsg *imsg)
729 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
730 13b2bc37 2022-10-23 stsp struct gotd_imsg_disconnect idisconnect;
731 13b2bc37 2022-10-23 stsp size_t datalen;
732 13b2bc37 2022-10-23 stsp int client_fd, delta_cache_fd, pipe[2];
733 13b2bc37 2022-10-23 stsp struct repo_read_client *client = NULL;
734 13b2bc37 2022-10-23 stsp uint64_t slot;
736 13b2bc37 2022-10-23 stsp datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
737 13b2bc37 2022-10-23 stsp if (datalen != sizeof(idisconnect))
738 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_PRIVSEP_LEN);
739 13b2bc37 2022-10-23 stsp memcpy(&idisconnect, imsg->data, sizeof(idisconnect));
741 13b2bc37 2022-10-23 stsp log_debug("client disconnecting");
743 13b2bc37 2022-10-23 stsp client = find_client(idisconnect.client_id);
744 13b2bc37 2022-10-23 stsp if (client == NULL)
745 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_CLIENT_ID);
747 13b2bc37 2022-10-23 stsp slot = client_hash(client->id) % nitems(repo_read_clients);
748 13b2bc37 2022-10-23 stsp STAILQ_REMOVE(&repo_read_clients[slot], client, repo_read_client,
750 13b2bc37 2022-10-23 stsp free_object_ids(&client->have_ids);
751 13b2bc37 2022-10-23 stsp free_object_ids(&client->want_ids);
752 13b2bc37 2022-10-23 stsp client_fd = client->fd;
753 13b2bc37 2022-10-23 stsp delta_cache_fd = client->delta_cache_fd;
754 13b2bc37 2022-10-23 stsp pipe[0] = client->pack_pipe[0];
755 13b2bc37 2022-10-23 stsp pipe[1] = client->pack_pipe[1];
756 13b2bc37 2022-10-23 stsp free(client);
757 13b2bc37 2022-10-23 stsp if (close(client_fd) == -1)
758 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
759 13b2bc37 2022-10-23 stsp if (delta_cache_fd != -1 && close(delta_cache_fd) == -1 && err == NULL)
760 13b2bc37 2022-10-23 stsp return got_error_from_errno("close");
761 13b2bc37 2022-10-23 stsp if (pipe[0] != -1 && close(pipe[0]) == -1 && err == NULL)
762 13b2bc37 2022-10-23 stsp return got_error_from_errno("close");
763 13b2bc37 2022-10-23 stsp if (pipe[1] != -1 && close(pipe[1]) == -1 && err == NULL)
764 13b2bc37 2022-10-23 stsp return got_error_from_errno("close");
765 13b2bc37 2022-10-23 stsp return err;
768 13b2bc37 2022-10-23 stsp static void
769 13b2bc37 2022-10-23 stsp repo_read_dispatch(int fd, short event, void *arg)
771 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
772 13b2bc37 2022-10-23 stsp struct gotd_imsgev *iev = arg;
773 13b2bc37 2022-10-23 stsp struct imsgbuf *ibuf = &iev->ibuf;
774 13b2bc37 2022-10-23 stsp struct imsg imsg;
776 13b2bc37 2022-10-23 stsp int shut = 0;
777 13b2bc37 2022-10-23 stsp struct repo_read_client *client = NULL;
779 13b2bc37 2022-10-23 stsp if (event & EV_READ) {
780 13b2bc37 2022-10-23 stsp if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
781 13b2bc37 2022-10-23 stsp fatal("imsg_read error");
782 13b2bc37 2022-10-23 stsp if (n == 0) /* Connection closed. */
786 13b2bc37 2022-10-23 stsp if (event & EV_WRITE) {
787 13b2bc37 2022-10-23 stsp n = msgbuf_write(&ibuf->w);
788 13b2bc37 2022-10-23 stsp if (n == -1 && errno != EAGAIN)
789 13b2bc37 2022-10-23 stsp fatal("msgbuf_write");
790 13b2bc37 2022-10-23 stsp if (n == 0) /* Connection closed. */
794 13b2bc37 2022-10-23 stsp while (err == NULL && check_cancelled(NULL) == NULL) {
795 13b2bc37 2022-10-23 stsp client = NULL;
796 13b2bc37 2022-10-23 stsp if ((n = imsg_get(ibuf, &imsg)) == -1)
797 13b2bc37 2022-10-23 stsp fatal("%s: imsg_get", __func__);
798 13b2bc37 2022-10-23 stsp if (n == 0) /* No more messages. */
801 13b2bc37 2022-10-23 stsp switch (imsg.hdr.type) {
802 13b2bc37 2022-10-23 stsp case GOTD_IMSG_LIST_REFS_INTERNAL:
803 13b2bc37 2022-10-23 stsp err = list_refs(&client, &imsg);
805 13b2bc37 2022-10-23 stsp log_warnx("%s: ls-refs: %s", repo_read.title,
808 13b2bc37 2022-10-23 stsp case GOTD_IMSG_WANT:
809 13b2bc37 2022-10-23 stsp err = recv_want(&client, &imsg);
811 13b2bc37 2022-10-23 stsp log_warnx("%s: want-line: %s", repo_read.title,
814 13b2bc37 2022-10-23 stsp case GOTD_IMSG_HAVE:
815 13b2bc37 2022-10-23 stsp err = recv_have(&client, &imsg);
817 13b2bc37 2022-10-23 stsp log_warnx("%s: have-line: %s", repo_read.title,
820 13b2bc37 2022-10-23 stsp case GOTD_IMSG_SEND_PACKFILE:
821 13b2bc37 2022-10-23 stsp err = receive_delta_cache_fd(&client, &imsg, iev);
823 13b2bc37 2022-10-23 stsp log_warnx("%s: receiving delta cache: %s",
824 13b2bc37 2022-10-23 stsp repo_read.title, err->msg);
826 13b2bc37 2022-10-23 stsp case GOTD_IMSG_PACKFILE_PIPE:
827 13b2bc37 2022-10-23 stsp err = receive_pack_pipe(&client, &imsg, iev);
829 13b2bc37 2022-10-23 stsp log_warnx("%s: receiving pack pipe: %s",
830 13b2bc37 2022-10-23 stsp repo_read.title, err->msg);
833 13b2bc37 2022-10-23 stsp if (client->pack_pipe[1] == -1)
835 13b2bc37 2022-10-23 stsp err = send_packfile(client, &imsg, iev);
837 13b2bc37 2022-10-23 stsp log_warnx("%s: sending packfile: %s",
838 13b2bc37 2022-10-23 stsp repo_read.title, err->msg);
840 13b2bc37 2022-10-23 stsp case GOTD_IMSG_DISCONNECT:
841 13b2bc37 2022-10-23 stsp err = recv_disconnect(&imsg);
843 13b2bc37 2022-10-23 stsp log_warnx("%s: disconnect: %s",
844 13b2bc37 2022-10-23 stsp repo_read.title, err->msg);
847 13b2bc37 2022-10-23 stsp log_debug("%s: unexpected imsg %d", repo_read.title,
848 13b2bc37 2022-10-23 stsp imsg.hdr.type);
852 13b2bc37 2022-10-23 stsp imsg_free(&imsg);
855 13b2bc37 2022-10-23 stsp if (!shut && check_cancelled(NULL) == NULL) {
857 13b2bc37 2022-10-23 stsp gotd_imsg_send_error_event(iev, PROC_REPO_READ,
858 13b2bc37 2022-10-23 stsp client ? client->id : 0, err) == -1) {
859 13b2bc37 2022-10-23 stsp log_warnx("could not send error to parent: %s",
862 13b2bc37 2022-10-23 stsp gotd_imsg_event_add(iev);
864 13b2bc37 2022-10-23 stsp /* This pipe is dead. Remove its event handler */
865 13b2bc37 2022-10-23 stsp event_del(&iev->ev);
866 13b2bc37 2022-10-23 stsp event_loopexit(NULL);
871 13b2bc37 2022-10-23 stsp repo_read_main(const char *title, int *pack_fds, int *temp_fds)
873 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
874 13b2bc37 2022-10-23 stsp struct gotd_imsgev iev;
876 13b2bc37 2022-10-23 stsp repo_read.title = title;
877 13b2bc37 2022-10-23 stsp repo_read.pid = getpid();
878 13b2bc37 2022-10-23 stsp repo_read.pack_fds = pack_fds;
879 13b2bc37 2022-10-23 stsp repo_read.temp_fds = temp_fds;
881 13b2bc37 2022-10-23 stsp arc4random_buf(&clients_hash_key, sizeof(clients_hash_key));
884 13b2bc37 2022-10-23 stsp * Open a repository in the root directory.
885 13b2bc37 2022-10-23 stsp * We are already in chroot at this point.
887 13b2bc37 2022-10-23 stsp err = got_repo_open(&repo_read.repo, "/", NULL, pack_fds);
890 13b2bc37 2022-10-23 stsp if (!got_repo_is_bare(repo_read.repo)) {
891 13b2bc37 2022-10-23 stsp err = got_error_msg(GOT_ERR_NOT_GIT_REPO,
892 13b2bc37 2022-10-23 stsp "bare git repository required");
896 13b2bc37 2022-10-23 stsp got_repo_temp_fds_set(repo_read.repo, temp_fds);
898 13b2bc37 2022-10-23 stsp signal(SIGINT, catch_sigint);
899 13b2bc37 2022-10-23 stsp signal(SIGTERM, catch_sigterm);
900 13b2bc37 2022-10-23 stsp signal(SIGPIPE, SIG_IGN);
901 13b2bc37 2022-10-23 stsp signal(SIGHUP, SIG_IGN);
903 13b2bc37 2022-10-23 stsp imsg_init(&iev.ibuf, GOTD_SOCK_FILENO);
904 13b2bc37 2022-10-23 stsp iev.handler = repo_read_dispatch;
905 13b2bc37 2022-10-23 stsp iev.events = EV_READ;
906 13b2bc37 2022-10-23 stsp iev.handler_arg = NULL;
907 13b2bc37 2022-10-23 stsp event_set(&iev.ev, iev.ibuf.fd, EV_READ, repo_read_dispatch, &iev);
908 13b2bc37 2022-10-23 stsp if (event_add(&iev.ev, NULL) == -1) {
909 13b2bc37 2022-10-23 stsp err = got_error_from_errno("event_add");
913 13b2bc37 2022-10-23 stsp event_dispatch();
916 13b2bc37 2022-10-23 stsp log_warnx("%s: %s", title, err->msg);
917 13b2bc37 2022-10-23 stsp repo_read_shutdown();
921 13b2bc37 2022-10-23 stsp repo_read_shutdown(void)
923 13b2bc37 2022-10-23 stsp log_debug("%s: shutting down", repo_read.title);
924 13b2bc37 2022-10-23 stsp if (repo_read.repo)
925 13b2bc37 2022-10-23 stsp got_repo_close(repo_read.repo);
926 13b2bc37 2022-10-23 stsp got_repo_pack_fds_close(repo_read.pack_fds);
927 13b2bc37 2022-10-23 stsp got_repo_temp_fds_close(repo_read.temp_fds);