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1 3efd8e31 2022-10-23 thomas /*
2 3efd8e31 2022-10-23 thomas * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
3 3efd8e31 2022-10-23 thomas *
4 3efd8e31 2022-10-23 thomas * Permission to use, copy, modify, and distribute this software for any
5 3efd8e31 2022-10-23 thomas * purpose with or without fee is hereby granted, provided that the above
6 3efd8e31 2022-10-23 thomas * copyright notice and this permission notice appear in all copies.
7 3efd8e31 2022-10-23 thomas *
8 3efd8e31 2022-10-23 thomas * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 3efd8e31 2022-10-23 thomas * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 3efd8e31 2022-10-23 thomas * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 3efd8e31 2022-10-23 thomas * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 3efd8e31 2022-10-23 thomas * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 3efd8e31 2022-10-23 thomas * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 3efd8e31 2022-10-23 thomas * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 3efd8e31 2022-10-23 thomas */
16 3efd8e31 2022-10-23 thomas
17 cff566e8 2023-08-23 thomas #include "got_compat.h"
18 3efd8e31 2022-10-23 thomas
19 3efd8e31 2022-10-23 thomas #define GOTD_UNIX_SOCKET "/var/run/gotd.sock"
20 3efd8e31 2022-10-23 thomas #define GOTD_UNIX_SOCKET_BACKLOG 10
21 3efd8e31 2022-10-23 thomas #define GOTD_USER "_gotd"
22 3efd8e31 2022-10-23 thomas #define GOTD_CONF_PATH "/etc/gotd.conf"
23 6dbf7c53 2023-08-23 thomas #ifndef GOTD_EMPTY_PATH
24 2b3d32a1 2022-12-30 thomas #define GOTD_EMPTY_PATH "/var/empty"
25 15cd675b 2023-08-23 thomas #endif
26 3efd8e31 2022-10-23 thomas
27 3efd8e31 2022-10-23 thomas #define GOTD_MAXCLIENTS 1024
28 ba63ab46 2023-01-02 thomas #define GOTD_MAX_CONN_PER_UID 4
29 3efd8e31 2022-10-23 thomas #define GOTD_FD_RESERVE 5
30 3efd8e31 2022-10-23 thomas #define GOTD_FD_NEEDED 6
31 bb3a6ce9 2022-11-17 thomas #define GOTD_FILENO_MSG_PIPE 3
32 3efd8e31 2022-10-23 thomas
33 0781db0e 2023-01-06 thomas #define GOTD_DEFAULT_REQUEST_TIMEOUT 3600
34 0781db0e 2023-01-06 thomas
35 3efd8e31 2022-10-23 thomas /* Client hash tables need some extra room. */
36 3efd8e31 2022-10-23 thomas #define GOTD_CLIENT_TABLE_SIZE (GOTD_MAXCLIENTS * 4)
37 3efd8e31 2022-10-23 thomas
38 3efd8e31 2022-10-23 thomas enum gotd_procid {
39 3efd8e31 2022-10-23 thomas PROC_GOTD = 0,
40 2b3d32a1 2022-12-30 thomas PROC_LISTEN,
41 c669c489 2022-12-30 thomas PROC_AUTH,
42 7fed8fa4 2023-06-22 thomas PROC_SESSION_READ,
43 7fed8fa4 2023-06-22 thomas PROC_SESSION_WRITE,
44 3efd8e31 2022-10-23 thomas PROC_REPO_READ,
45 3efd8e31 2022-10-23 thomas PROC_REPO_WRITE,
46 f3807fe5 2023-07-10 thomas PROC_GITWRAPPER,
47 3efd8e31 2022-10-23 thomas PROC_MAX,
48 3efd8e31 2022-10-23 thomas };
49 3efd8e31 2022-10-23 thomas
50 3efd8e31 2022-10-23 thomas struct gotd_imsgev {
51 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
52 3efd8e31 2022-10-23 thomas void (*handler)(int, short, void *);
53 3efd8e31 2022-10-23 thomas void *handler_arg;
54 3efd8e31 2022-10-23 thomas struct event ev;
55 3efd8e31 2022-10-23 thomas short events;
56 729a7e24 2022-11-17 thomas };
57 729a7e24 2022-11-17 thomas
58 729a7e24 2022-11-17 thomas enum gotd_access {
59 729a7e24 2022-11-17 thomas GOTD_ACCESS_PERMITTED = 1,
60 729a7e24 2022-11-17 thomas GOTD_ACCESS_DENIED
61 729a7e24 2022-11-17 thomas };
62 729a7e24 2022-11-17 thomas
63 729a7e24 2022-11-17 thomas struct gotd_access_rule {
64 729a7e24 2022-11-17 thomas STAILQ_ENTRY(gotd_access_rule) entry;
65 729a7e24 2022-11-17 thomas
66 729a7e24 2022-11-17 thomas enum gotd_access access;
67 729a7e24 2022-11-17 thomas
68 729a7e24 2022-11-17 thomas int authorization;
69 729a7e24 2022-11-17 thomas #define GOTD_AUTH_READ 0x1
70 729a7e24 2022-11-17 thomas #define GOTD_AUTH_WRITE 0x2
71 729a7e24 2022-11-17 thomas
72 729a7e24 2022-11-17 thomas char *identifier;
73 3efd8e31 2022-10-23 thomas };
74 729a7e24 2022-11-17 thomas STAILQ_HEAD(gotd_access_rule_list, gotd_access_rule);
75 3efd8e31 2022-10-23 thomas
76 3efd8e31 2022-10-23 thomas struct gotd_repo {
77 3efd8e31 2022-10-23 thomas TAILQ_ENTRY(gotd_repo) entry;
78 3efd8e31 2022-10-23 thomas
79 3efd8e31 2022-10-23 thomas char name[NAME_MAX];
80 3efd8e31 2022-10-23 thomas char path[PATH_MAX];
81 729a7e24 2022-11-17 thomas
82 729a7e24 2022-11-17 thomas struct gotd_access_rule_list rules;
83 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head protected_tag_namespaces;
84 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head protected_branch_namespaces;
85 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head protected_branches;
86 3efd8e31 2022-10-23 thomas };
87 3efd8e31 2022-10-23 thomas TAILQ_HEAD(gotd_repolist, gotd_repo);
88 3efd8e31 2022-10-23 thomas
89 7b1db75e 2023-01-14 thomas enum gotd_session_state {
90 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_LIST_REFS,
91 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_CAPABILITIES,
92 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_WANT,
93 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_REF_UPDATE,
94 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_MORE_REF_UPDATES,
95 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_HAVE,
96 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_PACKFILE,
97 3efd8e31 2022-10-23 thomas GOTD_STATE_EXPECT_DONE,
98 3efd8e31 2022-10-23 thomas GOTD_STATE_DONE,
99 3efd8e31 2022-10-23 thomas };
100 3efd8e31 2022-10-23 thomas
101 3efd8e31 2022-10-23 thomas struct gotd_client_capability {
102 3efd8e31 2022-10-23 thomas char *key;
103 3efd8e31 2022-10-23 thomas char *value;
104 3efd8e31 2022-10-23 thomas };
105 3efd8e31 2022-10-23 thomas
106 3efd8e31 2022-10-23 thomas struct gotd_object_id_array {
107 3efd8e31 2022-10-23 thomas struct got_object_id **ids;
108 3efd8e31 2022-10-23 thomas size_t nalloc;
109 3efd8e31 2022-10-23 thomas size_t nids;
110 3efd8e31 2022-10-23 thomas };
111 3efd8e31 2022-10-23 thomas
112 0781db0e 2023-01-06 thomas struct gotd_uid_connection_limit {
113 0781db0e 2023-01-06 thomas uid_t uid;
114 0781db0e 2023-01-06 thomas int max_connections;
115 0781db0e 2023-01-06 thomas };
116 78943464 2023-06-22 thomas
117 78943464 2023-06-22 thomas struct gotd_child_proc;
118 0781db0e 2023-01-06 thomas
119 3efd8e31 2022-10-23 thomas struct gotd {
120 3efd8e31 2022-10-23 thomas pid_t pid;
121 3efd8e31 2022-10-23 thomas char unix_socket_path[PATH_MAX];
122 3efd8e31 2022-10-23 thomas char user_name[32];
123 3efd8e31 2022-10-23 thomas struct gotd_repolist repos;
124 3efd8e31 2022-10-23 thomas int nrepos;
125 78943464 2023-06-22 thomas struct gotd_child_proc *listen_proc;
126 0781db0e 2023-01-06 thomas struct timeval request_timeout;
127 0781db0e 2023-01-06 thomas struct timeval auth_timeout;
128 0781db0e 2023-01-06 thomas struct gotd_uid_connection_limit *connection_limits;
129 0781db0e 2023-01-06 thomas size_t nconnection_limits;
130 85b37c72 2022-12-30 thomas
131 85b37c72 2022-12-30 thomas char *argv0;
132 85b37c72 2022-12-30 thomas const char *confpath;
133 85b37c72 2022-12-30 thomas int daemonize;
134 3efd8e31 2022-10-23 thomas int verbosity;
135 3efd8e31 2022-10-23 thomas };
136 3efd8e31 2022-10-23 thomas
137 3efd8e31 2022-10-23 thomas enum gotd_imsg_type {
138 3efd8e31 2022-10-23 thomas /* An error occured while processing a request. */
139 3efd8e31 2022-10-23 thomas GOTD_IMSG_ERROR,
140 3efd8e31 2022-10-23 thomas
141 c902213d 2022-10-29 thomas /* Commands used by gotctl(8). */
142 c902213d 2022-10-29 thomas GOTD_IMSG_INFO,
143 c902213d 2022-10-29 thomas GOTD_IMSG_INFO_REPO,
144 c902213d 2022-10-29 thomas GOTD_IMSG_INFO_CLIENT,
145 c902213d 2022-10-29 thomas GOTD_IMSG_STOP,
146 c902213d 2022-10-29 thomas
147 3efd8e31 2022-10-23 thomas /* Request a list of references. */
148 3efd8e31 2022-10-23 thomas GOTD_IMSG_LIST_REFS,
149 3efd8e31 2022-10-23 thomas GOTD_IMSG_LIST_REFS_INTERNAL,
150 3efd8e31 2022-10-23 thomas
151 3efd8e31 2022-10-23 thomas /* References. */
152 3efd8e31 2022-10-23 thomas GOTD_IMSG_REFLIST,
153 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF,
154 3efd8e31 2022-10-23 thomas GOTD_IMSG_SYMREF,
155 3efd8e31 2022-10-23 thomas
156 3efd8e31 2022-10-23 thomas /* Git protocol capabilities. */
157 3efd8e31 2022-10-23 thomas GOTD_IMSG_CAPABILITIES,
158 3efd8e31 2022-10-23 thomas GOTD_IMSG_CAPABILITY,
159 3efd8e31 2022-10-23 thomas
160 3efd8e31 2022-10-23 thomas /* Git protocol chatter. */
161 3efd8e31 2022-10-23 thomas GOTD_IMSG_WANT, /* The client wants an object. */
162 3efd8e31 2022-10-23 thomas GOTD_IMSG_HAVE, /* The client has an object. */
163 3efd8e31 2022-10-23 thomas GOTD_IMSG_ACK, /* The server has an object or a reference. */
164 3efd8e31 2022-10-23 thomas GOTD_IMSG_NAK, /* The server does not have an object/ref. */
165 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF_UPDATE, /* The client wants to update a reference. */
166 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF_DELETE, /* The client wants to delete a reference. */
167 3efd8e31 2022-10-23 thomas GOTD_IMSG_FLUSH, /* The client sent a flush packet. */
168 3efd8e31 2022-10-23 thomas GOTD_IMSG_DONE, /* The client is done chatting. */
169 3efd8e31 2022-10-23 thomas
170 3efd8e31 2022-10-23 thomas /* Sending or receiving a pack file. */
171 3efd8e31 2022-10-23 thomas GOTD_IMSG_SEND_PACKFILE, /* The server is sending a pack file. */
172 3efd8e31 2022-10-23 thomas GOTD_IMSG_RECV_PACKFILE, /* The server is receiving a pack file. */
173 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKIDX_FILE, /* Temporary file handle for new pack index. */
174 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_PIPE, /* Pipe to send/receive a pack file stream. */
175 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_PROGRESS, /* Progress reporting. */
176 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_READY, /* Pack file is ready to be sent. */
177 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_STATUS, /* Received pack success/failure status. */
178 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_INSTALL, /* Received pack file can be installed. */
179 3efd8e31 2022-10-23 thomas GOTD_IMSG_PACKFILE_DONE, /* Pack file has been sent/received. */
180 3efd8e31 2022-10-23 thomas
181 3efd8e31 2022-10-23 thomas /* Reference updates. */
182 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF_UPDATES_START, /* Ref updates starting. */
183 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF_UPDATE_OK, /* Update went OK. */
184 3efd8e31 2022-10-23 thomas GOTD_IMSG_REF_UPDATE_NG, /* Update was not good. */
185 3efd8e31 2022-10-23 thomas GOTD_IMSG_REFS_UPDATED, /* The server proccessed all ref updates. */
186 3efd8e31 2022-10-23 thomas
187 2b3d32a1 2022-12-30 thomas /* Client connections. */
188 3efd8e31 2022-10-23 thomas GOTD_IMSG_DISCONNECT,
189 2b3d32a1 2022-12-30 thomas GOTD_IMSG_CONNECT,
190 85b37c72 2022-12-30 thomas
191 85b37c72 2022-12-30 thomas /* Child process management. */
192 62ee7d94 2023-01-10 thomas GOTD_IMSG_CLIENT_SESSION_READY,
193 85b37c72 2022-12-30 thomas GOTD_IMSG_REPO_CHILD_READY,
194 62ee7d94 2023-01-10 thomas GOTD_IMSG_CONNECT_REPO_CHILD,
195 c669c489 2022-12-30 thomas
196 c669c489 2022-12-30 thomas /* Auth child process. */
197 c669c489 2022-12-30 thomas GOTD_IMSG_AUTHENTICATE,
198 c669c489 2022-12-30 thomas GOTD_IMSG_ACCESS_GRANTED,
199 3efd8e31 2022-10-23 thomas };
200 3efd8e31 2022-10-23 thomas
201 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_ERROR. */
202 3efd8e31 2022-10-23 thomas struct gotd_imsg_error {
203 3efd8e31 2022-10-23 thomas int code; /* an error code from got_error.h */
204 3efd8e31 2022-10-23 thomas int errno_code; /* in case code equals GOT_ERR_ERRNO */
205 3efd8e31 2022-10-23 thomas uint32_t client_id;
206 3efd8e31 2022-10-23 thomas char msg[GOT_ERR_MAX_MSG_SIZE];
207 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
208 3efd8e31 2022-10-23 thomas
209 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO. */
210 c902213d 2022-10-29 thomas struct gotd_imsg_info {
211 c902213d 2022-10-29 thomas pid_t pid;
212 c902213d 2022-10-29 thomas int verbosity;
213 c902213d 2022-10-29 thomas int nrepos;
214 c902213d 2022-10-29 thomas int nclients;
215 c902213d 2022-10-29 thomas
216 c902213d 2022-10-29 thomas /* Followed by nrepos GOTD_IMSG_INFO_REPO messages. */
217 c902213d 2022-10-29 thomas /* Followed by nclients GOTD_IMSG_INFO_CLIENT messages. */
218 c902213d 2022-10-29 thomas };
219 c902213d 2022-10-29 thomas
220 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO_REPO. */
221 c902213d 2022-10-29 thomas struct gotd_imsg_info_repo {
222 c902213d 2022-10-29 thomas char repo_name[NAME_MAX];
223 c902213d 2022-10-29 thomas char repo_path[PATH_MAX];
224 c902213d 2022-10-29 thomas };
225 c902213d 2022-10-29 thomas
226 c902213d 2022-10-29 thomas /* Structure for GOTD_IMSG_INFO_CLIENT */
227 c902213d 2022-10-29 thomas struct gotd_imsg_info_client {
228 c902213d 2022-10-29 thomas uid_t euid;
229 c902213d 2022-10-29 thomas gid_t egid;
230 c902213d 2022-10-29 thomas char repo_name[NAME_MAX];
231 c902213d 2022-10-29 thomas int is_writing;
232 62ee7d94 2023-01-10 thomas pid_t session_child_pid;
233 62ee7d94 2023-01-10 thomas pid_t repo_child_pid;
234 c902213d 2022-10-29 thomas };
235 c902213d 2022-10-29 thomas
236 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_LIST_REFS. */
237 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs {
238 3efd8e31 2022-10-23 thomas char repo_name[NAME_MAX];
239 3efd8e31 2022-10-23 thomas int client_is_reading; /* 1 if reading, 0 if writing */
240 3efd8e31 2022-10-23 thomas };
241 3efd8e31 2022-10-23 thomas
242 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_LIST_REFS_INTERNAL. */
243 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs_internal {
244 3efd8e31 2022-10-23 thomas uint32_t client_id;
245 3efd8e31 2022-10-23 thomas };
246 3efd8e31 2022-10-23 thomas
247 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REFLIST. */
248 3efd8e31 2022-10-23 thomas struct gotd_imsg_reflist {
249 3efd8e31 2022-10-23 thomas size_t nrefs;
250 3efd8e31 2022-10-23 thomas
251 3efd8e31 2022-10-23 thomas /* Followed by nrefs times of gotd_imsg_ref/gotd_imsg_symref data. */
252 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
253 3efd8e31 2022-10-23 thomas
254 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF data. */
255 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref {
256 3efd8e31 2022-10-23 thomas uint8_t id[SHA1_DIGEST_LENGTH];
257 3efd8e31 2022-10-23 thomas size_t name_len;
258 3efd8e31 2022-10-23 thomas /* Followed by name_len data bytes. */
259 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
260 3efd8e31 2022-10-23 thomas
261 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_SYMREF data. */
262 3efd8e31 2022-10-23 thomas struct gotd_imsg_symref {
263 3efd8e31 2022-10-23 thomas size_t name_len;
264 3efd8e31 2022-10-23 thomas size_t target_len;
265 3efd8e31 2022-10-23 thomas uint8_t target_id[SHA1_DIGEST_LENGTH];
266 3efd8e31 2022-10-23 thomas
267 3efd8e31 2022-10-23 thomas /*
268 3efd8e31 2022-10-23 thomas * Followed by name_len + target_len data bytes.
269 3efd8e31 2022-10-23 thomas */
270 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
271 3efd8e31 2022-10-23 thomas
272 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_CAPABILITIES data. */
273 3efd8e31 2022-10-23 thomas struct gotd_imsg_capabilities {
274 3efd8e31 2022-10-23 thomas size_t ncapabilities;
275 3efd8e31 2022-10-23 thomas
276 3efd8e31 2022-10-23 thomas /*
277 3efd8e31 2022-10-23 thomas * Followed by ncapabilities * GOTD_IMSG_CAPABILITY.
278 3efd8e31 2022-10-23 thomas */
279 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
280 3efd8e31 2022-10-23 thomas
281 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_CAPABILITY data. */
282 3efd8e31 2022-10-23 thomas struct gotd_imsg_capability {
283 3efd8e31 2022-10-23 thomas size_t key_len;
284 3efd8e31 2022-10-23 thomas size_t value_len;
285 3efd8e31 2022-10-23 thomas
286 3efd8e31 2022-10-23 thomas /*
287 3efd8e31 2022-10-23 thomas * Followed by key_len + value_len data bytes.
288 3efd8e31 2022-10-23 thomas */
289 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
290 3efd8e31 2022-10-23 thomas
291 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_WANT data. */
292 3efd8e31 2022-10-23 thomas struct gotd_imsg_want {
293 3efd8e31 2022-10-23 thomas uint8_t object_id[SHA1_DIGEST_LENGTH];
294 3efd8e31 2022-10-23 thomas uint32_t client_id;
295 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
296 3efd8e31 2022-10-23 thomas
297 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_HAVE data. */
298 3efd8e31 2022-10-23 thomas struct gotd_imsg_have {
299 3efd8e31 2022-10-23 thomas uint8_t object_id[SHA1_DIGEST_LENGTH];
300 3efd8e31 2022-10-23 thomas uint32_t client_id;
301 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
302 3efd8e31 2022-10-23 thomas
303 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_ACK data. */
304 3efd8e31 2022-10-23 thomas struct gotd_imsg_ack {
305 3efd8e31 2022-10-23 thomas uint8_t object_id[SHA1_DIGEST_LENGTH];
306 3efd8e31 2022-10-23 thomas uint32_t client_id;
307 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
308 3efd8e31 2022-10-23 thomas
309 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_NAK data. */
310 3efd8e31 2022-10-23 thomas struct gotd_imsg_nak {
311 3efd8e31 2022-10-23 thomas uint8_t object_id[SHA1_DIGEST_LENGTH];
312 3efd8e31 2022-10-23 thomas uint32_t client_id;
313 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
314 3efd8e31 2022-10-23 thomas
315 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_STATUS data. */
316 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_status {
317 3efd8e31 2022-10-23 thomas size_t reason_len;
318 3efd8e31 2022-10-23 thomas
319 3efd8e31 2022-10-23 thomas /* Followed by reason_len data bytes. */
320 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
321 3efd8e31 2022-10-23 thomas
322 3efd8e31 2022-10-23 thomas
323 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE data. */
324 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update {
325 3efd8e31 2022-10-23 thomas uint8_t old_id[SHA1_DIGEST_LENGTH];
326 3efd8e31 2022-10-23 thomas uint8_t new_id[SHA1_DIGEST_LENGTH];
327 3efd8e31 2022-10-23 thomas int ref_is_new;
328 49563dfb 2023-01-28 thomas int delete_ref;
329 3efd8e31 2022-10-23 thomas uint32_t client_id;
330 3efd8e31 2022-10-23 thomas size_t name_len;
331 3efd8e31 2022-10-23 thomas
332 3efd8e31 2022-10-23 thomas /* Followed by name_len data bytes. */
333 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
334 3efd8e31 2022-10-23 thomas
335 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATES_START data. */
336 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_updates_start {
337 3efd8e31 2022-10-23 thomas int nref_updates;
338 3efd8e31 2022-10-23 thomas uint32_t client_id;
339 3efd8e31 2022-10-23 thomas
340 3efd8e31 2022-10-23 thomas /* Followed by nref_updates GOT_IMSG_REF_UPDATE_OK/NG messages. */
341 3efd8e31 2022-10-23 thomas };
342 3efd8e31 2022-10-23 thomas
343 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE_OK data. */
344 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update_ok {
345 3efd8e31 2022-10-23 thomas uint8_t old_id[SHA1_DIGEST_LENGTH];
346 3efd8e31 2022-10-23 thomas uint8_t new_id[SHA1_DIGEST_LENGTH];
347 3efd8e31 2022-10-23 thomas int ref_is_new;
348 3efd8e31 2022-10-23 thomas uint32_t client_id;
349 3efd8e31 2022-10-23 thomas size_t name_len;
350 3efd8e31 2022-10-23 thomas
351 3efd8e31 2022-10-23 thomas /* Followed by name_len data bytes. */
352 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
353 3efd8e31 2022-10-23 thomas
354 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_REF_UPDATE_NG data. */
355 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update_ng {
356 3efd8e31 2022-10-23 thomas uint8_t old_id[SHA1_DIGEST_LENGTH];
357 3efd8e31 2022-10-23 thomas uint8_t new_id[SHA1_DIGEST_LENGTH];
358 3efd8e31 2022-10-23 thomas uint32_t client_id;
359 3efd8e31 2022-10-23 thomas size_t name_len;
360 3efd8e31 2022-10-23 thomas size_t reason_len;
361 3efd8e31 2022-10-23 thomas
362 3efd8e31 2022-10-23 thomas /* Followed by name_len + reason_len data bytes. */
363 3efd8e31 2022-10-23 thomas } __attribute__((__packed__));
364 3efd8e31 2022-10-23 thomas
365 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_SEND_PACKFILE data. */
366 3efd8e31 2022-10-23 thomas struct gotd_imsg_send_packfile {
367 3efd8e31 2022-10-23 thomas uint32_t client_id;
368 3efd8e31 2022-10-23 thomas int report_progress;
369 3efd8e31 2022-10-23 thomas
370 3efd8e31 2022-10-23 thomas /* delta cache file is sent as a file descriptor */
371 3efd8e31 2022-10-23 thomas
372 3efd8e31 2022-10-23 thomas /* followed by two GOTD_IMSG_PACKFILE_PIPE messages */
373 3efd8e31 2022-10-23 thomas };
374 3efd8e31 2022-10-23 thomas
375 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_RECV_PACKFILE data. */
376 3efd8e31 2022-10-23 thomas struct gotd_imsg_recv_packfile {
377 3efd8e31 2022-10-23 thomas uint32_t client_id;
378 3efd8e31 2022-10-23 thomas int report_status;
379 3efd8e31 2022-10-23 thomas
380 3efd8e31 2022-10-23 thomas /* pack destination temp file is sent as a file descriptor */
381 3efd8e31 2022-10-23 thomas };
382 3efd8e31 2022-10-23 thomas
383 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_PIPE data. */
384 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_pipe {
385 3efd8e31 2022-10-23 thomas uint32_t client_id;
386 3efd8e31 2022-10-23 thomas };
387 3efd8e31 2022-10-23 thomas
388 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKIDX_FILE data. */
389 3efd8e31 2022-10-23 thomas struct gotd_imsg_packidx_file {
390 3efd8e31 2022-10-23 thomas uint32_t client_id;
391 3efd8e31 2022-10-23 thomas };
392 3efd8e31 2022-10-23 thomas
393 3efd8e31 2022-10-23 thomas
394 3efd8e31 2022-10-23 thomas /*
395 3efd8e31 2022-10-23 thomas * Structure for GOTD_IMSG_PACKFILE_PROGRESS and
396 3efd8e31 2022-10-23 thomas * GOTD_IMSG_PACKFILE_READY data.
397 3efd8e31 2022-10-23 thomas */
398 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_progress {
399 3efd8e31 2022-10-23 thomas uint32_t client_id;
400 3efd8e31 2022-10-23 thomas int ncolored;
401 3efd8e31 2022-10-23 thomas int nfound;
402 3efd8e31 2022-10-23 thomas int ntrees;
403 3efd8e31 2022-10-23 thomas off_t packfile_size;
404 3efd8e31 2022-10-23 thomas int ncommits;
405 3efd8e31 2022-10-23 thomas int nobj_total;
406 3efd8e31 2022-10-23 thomas int nobj_deltify;
407 3efd8e31 2022-10-23 thomas int nobj_written;
408 3efd8e31 2022-10-23 thomas };
409 3efd8e31 2022-10-23 thomas
410 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_INSTALL. */
411 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_install {
412 3efd8e31 2022-10-23 thomas uint32_t client_id;
413 3efd8e31 2022-10-23 thomas uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
414 3efd8e31 2022-10-23 thomas };
415 3efd8e31 2022-10-23 thomas
416 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_PACKFILE_DONE data. */
417 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_done {
418 3efd8e31 2022-10-23 thomas uint32_t client_id;
419 3efd8e31 2022-10-23 thomas };
420 3efd8e31 2022-10-23 thomas
421 3efd8e31 2022-10-23 thomas /* Structure for GOTD_IMSG_DISCONNECT data. */
422 3efd8e31 2022-10-23 thomas struct gotd_imsg_disconnect {
423 3efd8e31 2022-10-23 thomas uint32_t client_id;
424 3efd8e31 2022-10-23 thomas };
425 3efd8e31 2022-10-23 thomas
426 2b3d32a1 2022-12-30 thomas /* Structure for GOTD_IMSG_CONNECT. */
427 2b3d32a1 2022-12-30 thomas struct gotd_imsg_connect {
428 2b3d32a1 2022-12-30 thomas uint32_t client_id;
429 0bcde4c8 2022-12-30 thomas uid_t euid;
430 0bcde4c8 2022-12-30 thomas gid_t egid;
431 2b3d32a1 2022-12-30 thomas };
432 2b3d32a1 2022-12-30 thomas
433 62ee7d94 2023-01-10 thomas /* Structure for GOTD_IMSG_CONNECT_REPO_CHILD. */
434 62ee7d94 2023-01-10 thomas struct gotd_imsg_connect_repo_child {
435 62ee7d94 2023-01-10 thomas uint32_t client_id;
436 62ee7d94 2023-01-10 thomas enum gotd_procid proc_id;
437 62ee7d94 2023-01-10 thomas
438 62ee7d94 2023-01-10 thomas /* repo child imsg pipe is passed via imsg fd */
439 62ee7d94 2023-01-10 thomas };
440 62ee7d94 2023-01-10 thomas
441 c669c489 2022-12-30 thomas /* Structure for GOTD_IMSG_AUTHENTICATE. */
442 c669c489 2022-12-30 thomas struct gotd_imsg_auth {
443 c669c489 2022-12-30 thomas uid_t euid;
444 c669c489 2022-12-30 thomas gid_t egid;
445 c669c489 2022-12-30 thomas int required_auth;
446 c669c489 2022-12-30 thomas uint32_t client_id;
447 c669c489 2022-12-30 thomas };
448 c669c489 2022-12-30 thomas
449 15cd675b 2023-08-23 thomas int enter_chroot(const char *);
450 f3807fe5 2023-07-10 thomas int parse_config(const char *, enum gotd_procid, struct gotd *);
451 5dcb3a43 2023-04-01 thomas struct gotd_repo *gotd_find_repo_by_name(const char *, struct gotd *);
452 6d7eb4f7 2023-04-04 thomas struct gotd_repo *gotd_find_repo_by_path(const char *, struct gotd *);
453 65a36f17 2023-04-22 thomas struct gotd_uid_connection_limit *gotd_find_uid_connection_limit(
454 65a36f17 2023-04-22 thomas struct gotd_uid_connection_limit *limits, size_t nlimits, uid_t uid);
455 48488136 2023-04-22 thomas int gotd_parseuid(const char *s, uid_t *uid);
456 3efd8e31 2022-10-23 thomas
457 3efd8e31 2022-10-23 thomas /* imsg.c */
458 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_flush(struct imsgbuf *);
459 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_recv(struct imsg *, struct imsgbuf *, size_t);
460 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_poll_recv(struct imsg *, struct imsgbuf *,
461 3efd8e31 2022-10-23 thomas size_t);
462 3efd8e31 2022-10-23 thomas const struct got_error *gotd_imsg_recv_error(uint32_t *client_id,
463 3efd8e31 2022-10-23 thomas struct imsg *imsg);
464 3efd8e31 2022-10-23 thomas int gotd_imsg_send_error(struct imsgbuf *ibuf, uint32_t, uint32_t,
465 3efd8e31 2022-10-23 thomas const struct got_error *);
466 3efd8e31 2022-10-23 thomas int gotd_imsg_send_error_event(struct gotd_imsgev *, uint32_t, uint32_t,
467 3efd8e31 2022-10-23 thomas const struct got_error *);
468 3efd8e31 2022-10-23 thomas void gotd_imsg_event_add(struct gotd_imsgev *);
469 3efd8e31 2022-10-23 thomas int gotd_imsg_compose_event(struct gotd_imsgev *, uint16_t, uint32_t, int,
470 3efd8e31 2022-10-23 thomas void *, uint16_t);
471 3efd8e31 2022-10-23 thomas int gotd_imsg_forward(struct gotd_imsgev *, struct imsg *, int);
472 3efd8e31 2022-10-23 thomas
473 3efd8e31 2022-10-23 thomas void gotd_imsg_send_ack(struct got_object_id *, struct imsgbuf *,
474 3efd8e31 2022-10-23 thomas uint32_t, pid_t);
475 3efd8e31 2022-10-23 thomas void gotd_imsg_send_nak(struct got_object_id *, struct imsgbuf *,
476 3efd8e31 2022-10-23 thomas uint32_t, pid_t);