2 96fd6df1 2022-10-13 stsp * Copyright (c) 2020 Stefan Sperling <stsp@openbsd.org>
4 96fd6df1 2022-10-13 stsp * Permission to use, copy, modify, and distribute this software for any
5 96fd6df1 2022-10-13 stsp * purpose with or without fee is hereby granted, provided that the above
6 96fd6df1 2022-10-13 stsp * copyright notice and this permission notice appear in all copies.
8 96fd6df1 2022-10-13 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 96fd6df1 2022-10-13 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 96fd6df1 2022-10-13 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 96fd6df1 2022-10-13 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 96fd6df1 2022-10-13 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 96fd6df1 2022-10-13 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 96fd6df1 2022-10-13 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 96fd6df1 2022-10-13 stsp #include <sys/types.h>
18 96fd6df1 2022-10-13 stsp #include <sys/queue.h>
19 96fd6df1 2022-10-13 stsp #include <sys/uio.h>
20 96fd6df1 2022-10-13 stsp #include <sys/socket.h>
22 96fd6df1 2022-10-13 stsp #include <unistd.h>
23 96fd6df1 2022-10-13 stsp #include <fcntl.h>
24 96fd6df1 2022-10-13 stsp #include <errno.h>
25 96fd6df1 2022-10-13 stsp #include <stdlib.h>
26 96fd6df1 2022-10-13 stsp #include <stdio.h>
27 96fd6df1 2022-10-13 stsp #include <stdint.h>
28 96fd6df1 2022-10-13 stsp #include <imsg.h>
29 96fd6df1 2022-10-13 stsp #include <sha1.h>
30 5822e79e 2023-02-23 op #include <sha2.h>
31 96fd6df1 2022-10-13 stsp #include <limits.h>
33 96fd6df1 2022-10-13 stsp #include "got_error.h"
34 96fd6df1 2022-10-13 stsp #include "got_object.h"
35 96fd6df1 2022-10-13 stsp #include "got_repository.h"
37 96fd6df1 2022-10-13 stsp #include "got_lib_delta.h"
38 96fd6df1 2022-10-13 stsp #include "got_lib_object.h"
39 96fd6df1 2022-10-13 stsp #include "got_lib_privsep.h"
40 96fd6df1 2022-10-13 stsp #include "got_lib_gotconfig.h"
42 96fd6df1 2022-10-13 stsp #include "got_gotconfig.h"
44 96fd6df1 2022-10-13 stsp const struct got_error *
45 96fd6df1 2022-10-13 stsp got_gotconfig_read(struct got_gotconfig **conf, const char *gotconfig_path)
47 96fd6df1 2022-10-13 stsp const struct got_error *err = NULL, *child_err = NULL;
48 96fd6df1 2022-10-13 stsp int fd = -1;
49 96fd6df1 2022-10-13 stsp int imsg_fds[2] = { -1, -1 };
51 41725847 2022-10-27 stsp struct imsgbuf *ibuf = NULL;
53 96fd6df1 2022-10-13 stsp *conf = calloc(1, sizeof(**conf));
54 96fd6df1 2022-10-13 stsp if (*conf == NULL)
55 96fd6df1 2022-10-13 stsp return got_error_from_errno("calloc");
57 96fd6df1 2022-10-13 stsp fd = open(gotconfig_path, O_RDONLY | O_CLOEXEC);
58 96fd6df1 2022-10-13 stsp if (fd == -1) {
59 96fd6df1 2022-10-13 stsp if (errno == ENOENT)
60 96fd6df1 2022-10-13 stsp return NULL;
61 41725847 2022-10-27 stsp err = got_error_from_errno2("open", gotconfig_path);
65 96fd6df1 2022-10-13 stsp ibuf = calloc(1, sizeof(*ibuf));
66 96fd6df1 2022-10-13 stsp if (ibuf == NULL) {
67 96fd6df1 2022-10-13 stsp err = got_error_from_errno("calloc");
71 96fd6df1 2022-10-13 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
72 96fd6df1 2022-10-13 stsp err = got_error_from_errno("socketpair");
76 96fd6df1 2022-10-13 stsp pid = fork();
77 96fd6df1 2022-10-13 stsp if (pid == -1) {
78 96fd6df1 2022-10-13 stsp err = got_error_from_errno("fork");
80 96fd6df1 2022-10-13 stsp } else if (pid == 0) {
81 96fd6df1 2022-10-13 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GOTCONFIG,
82 96fd6df1 2022-10-13 stsp gotconfig_path);
83 96fd6df1 2022-10-13 stsp /* not reached */
86 96fd6df1 2022-10-13 stsp if (close(imsg_fds[1]) == -1) {
87 96fd6df1 2022-10-13 stsp err = got_error_from_errno("close");
90 96fd6df1 2022-10-13 stsp imsg_fds[1] = -1;
91 96fd6df1 2022-10-13 stsp imsg_init(ibuf, imsg_fds[0]);
93 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_parse_req(ibuf, fd);
98 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_author_req(ibuf);
102 96fd6df1 2022-10-13 stsp err = got_privsep_recv_gotconfig_str(&(*conf)->author, ibuf);
106 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_allowed_signers_req(ibuf);
110 96fd6df1 2022-10-13 stsp err = got_privsep_recv_gotconfig_str(&(*conf)->allowed_signers_file,
115 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_revoked_signers_req(ibuf);
119 96fd6df1 2022-10-13 stsp err = got_privsep_recv_gotconfig_str(&(*conf)->revoked_signers_file,
124 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_signer_id_req(ibuf);
128 96fd6df1 2022-10-13 stsp err = got_privsep_recv_gotconfig_str(&(*conf)->signer_id, ibuf);
132 96fd6df1 2022-10-13 stsp err = got_privsep_send_gotconfig_remotes_req(ibuf);
136 96fd6df1 2022-10-13 stsp err = got_privsep_recv_gotconfig_remotes(&(*conf)->remotes,
137 96fd6df1 2022-10-13 stsp &(*conf)->nremotes, ibuf);
141 96fd6df1 2022-10-13 stsp err = got_privsep_send_stop(imsg_fds[0]);
142 96fd6df1 2022-10-13 stsp child_err = got_privsep_wait_for_child(pid);
143 96fd6df1 2022-10-13 stsp if (child_err && err == NULL)
144 96fd6df1 2022-10-13 stsp err = child_err;
146 96fd6df1 2022-10-13 stsp if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
147 96fd6df1 2022-10-13 stsp err = got_error_from_errno("close");
148 96fd6df1 2022-10-13 stsp if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
149 96fd6df1 2022-10-13 stsp err = got_error_from_errno("close");
150 96fd6df1 2022-10-13 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
151 96fd6df1 2022-10-13 stsp err = got_error_from_errno2("close", gotconfig_path);
153 96fd6df1 2022-10-13 stsp got_gotconfig_free(*conf);
154 96fd6df1 2022-10-13 stsp *conf = NULL;
156 96fd6df1 2022-10-13 stsp free(ibuf);
157 96fd6df1 2022-10-13 stsp return err;