Mercurial > trustbridge

annotate cinst/nssstore_linux.c @ 604:3d45f5bca0aa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
(Testplan) Updated README for new intests version with language support.
author Emanuel Schuetze <emanuel@intevation.de>
date Wed, 18 Jun 2014 09:17:25 +0200
parents 214bf504c54f
children e41a2537b84d
rev   line source
404
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
2 * Software engineering by Intevation GmbH
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
3 *
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
4 * This file is Free Software under the GNU GPL (v>=2)
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
5 * and comes with ABSOLUTELY NO WARRANTY!
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
6 * See LICENSE.txt for details.
17e1c8f37d72 Add License
Andre Heinecke <aheinecke@intevation.de>
parents: 384
diff changeset
7 */
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
8 #ifndef WIN32
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
9
321
824ef90a6721 Move is_elevated into common/util.c file for better reuse
Andre Heinecke <aheinecke@intevation.de>
parents: 305
diff changeset
10 /* @file
824ef90a6721 Move is_elevated into common/util.c file for better reuse
Andre Heinecke <aheinecke@intevation.de>
parents: 305
diff changeset
11 @brief Linux implementation of nssstore process control.
824ef90a6721 Move is_elevated into common/util.c file for better reuse
Andre Heinecke <aheinecke@intevation.de>
parents: 305
diff changeset
12 */
824ef90a6721 Move is_elevated into common/util.c file for better reuse
Andre Heinecke <aheinecke@intevation.de>
parents: 305
diff changeset
13
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
14 #include <stdbool.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
15 #include <stdio.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
16 #include <unistd.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
17 #include <sys/types.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
18 #include <sys/wait.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
19 #include <string.h>
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
20 #include <stdlib.h>
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
21 #include <limits.h>
439
c88090a15ae4 Fix cinstprocesstest for new arguments. Handle errno on write errors
Andre Heinecke <aheinecke@intevation.de>
parents: 404
diff changeset
22 #include <errno.h>
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
23
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
24 #include "nssstore.h"
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
25 #include "logging.h"
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
26 #include "strhelp.h"
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
27
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
28 #define NSS_PROCESS_NAME "mozilla"
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
29
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
30 /**@brief get the current path of the executable
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
31 *
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
32 * Looks up the current executables directory. The caller
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
33 * has to free the return value.
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
34 *
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
35 * The returned value includes the last /
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
36 *
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
37 * @returns the absolute directory of the currently executed executable or NULL
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
38 */
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
39 char *
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
40 get_exe_dir()
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
41 {
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
42 char *retval = NULL,
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
43 *p = NULL,
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
44 buf[PATH_MAX];
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
45 ssize_t ret;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
46 size_t path_len = 0;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
47
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
48 ret = readlink ("/proc/self/exe", buf, PATH_MAX);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
49 if (ret <= 0)
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
50 {
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
51 ERRORPRINTF ("readlink failed\n");
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
52 return NULL;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
53 }
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
54
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
55 buf[ret] = '\0';
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
56
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
57 /* cut off the filename */
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
58 p = strrchr (buf, '/');
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
59 if (p == NULL)
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
60 {
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
61 ERRORPRINTF ("No filename found.\n");
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
62 return NULL;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
63 }
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
64 *(p + 1) = '\0';
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
65
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
66 path_len = strlen (buf);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
67 retval = xmalloc (path_len + 1);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
68 strncpy (retval, buf, path_len);
476
e8d761c2d2d1 Make sure that retval is terminated
Andre Heinecke <aheinecke@intevation.de>
parents: 439
diff changeset
69 retval[path_len] = '\0';
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
70
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
71 return retval;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
72 }
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
73
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
74 /**@brief Start the process to install / remove
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
75 *
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
76 * This forks the process and executes the NSS installation
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
77 * process. It also writes the Instructions to that process.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
78 *
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
79 * @param [in] to_install strv of DER encoded certificates to be added.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
80 * @param [in] to_remove strv of DER encoded certificates to be remvoed.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
81 * @param [in] uid_t uid of the user to install certificates for.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
82 * @param [in] gid_t the gid of the user to install certificates for.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
83 * @param [in] homedir the homedir of the user.
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
84 *
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
85 * @returns childs pid on success. -1 on failure
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
86 */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
87 static int
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
88 start_procces_for_user (char **to_install, char **to_remove,
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
89 uid_t uid, gid_t gid, char *homedir)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
90 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
91 int pipe_fd[2];
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
92 pid_t pid = 0;
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
93 char *argv[2] = {NULL, NULL},
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
94 *envp[2] = {NULL, NULL},
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
95 *inst_dir = NULL;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
96 size_t homedir_len = 0,
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
97 exe_path_len = 0;
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
98 int ret = -1,
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
99 i = 0;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
100 FILE *stream = NULL;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
101 bool success = false;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
102
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
103 if (homedir == NULL)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
104 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
105 ERRORPRINTF ("Invalid call to start_process_for_user\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
106 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
107 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
108
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
109 homedir_len = strlen (homedir);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
110
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
111 /* Allocate space for HOME=homedir\0 */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
112 envp[0] = xmalloc (homedir_len + 6);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
113 envp[1] = NULL;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
114
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
115 ret = snprintf (envp[0], homedir_len + 6, "HOME=%s", homedir);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
116
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
117 if (ret < 0 || (size_t) ret != homedir_len + 5)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
118 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
119 ERRORPRINTF ("Error setting home env variable.\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
120 xfree (envp[0]);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
121 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
122 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
123
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
124 /* Set up the file name of the installer process */
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
125 inst_dir = get_exe_dir();
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
126 if (inst_dir == NULL)
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
127 {
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
128 ERRORPRINTF ("Failed to find installation directory.\n");
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
129 xfree (envp[0]);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
130 return -1;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
131 }
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
132
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
133 exe_path_len = strlen(inst_dir) + strlen(NSS_PROCESS_NAME);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
134 argv[0] = xmalloc (exe_path_len + 1);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
135
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
136 ret = snprintf(argv[0], exe_path_len + 1, "%s%s", inst_dir, NSS_PROCESS_NAME);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
137 if (ret < 0 || (size_t) ret != exe_path_len)
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
138 {
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
139 ERRORPRINTF ("Error setting executable variable.\n");
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
140 xfree (argv[0]);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
141 return -1;
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
142 }
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
144 if (pipe (pipe_fd))
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146 ERRORPRINTF ("Failed to create pipe.\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
147 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
148 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
149
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
150 pid = fork();
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
151
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
152 if (pid == (pid_t) -1)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
153 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
154 ERRORPRINTF ("Failed to fork child.\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
155 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
156 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
157
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
158 if (pid == (pid_t) 0)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
159 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
160 /* Drop privileges */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 if (setuid (uid) || setgid (gid))
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
162 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
163 exit(-1);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
164 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
165
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
166 close (pipe_fd[1]);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
167 dup2 (pipe_fd[0], 0);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
168 close (pipe_fd[0]);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
169 /* TODO find path based on current executable */
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
170 execve (argv[0], argv, envp);
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
171 exit (127);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
172 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
173
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
174 close (pipe_fd[0]);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
175 stream = fdopen(pipe_fd[1], "w");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
176 if (stream == NULL)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
177 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
178 ERRORPRINTF ("Failed to open pipe for writing\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
179 goto done;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
180 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
181
384
638db75f0fdf Ignore sigpipe if the child closed the channel or there is an error
Andre Heinecke <andre.heinecke@intevation.de>
parents: 383
diff changeset
182 /* The NSS installer may exit on error before we are done
638db75f0fdf Ignore sigpipe if the child closed the channel or there is an error
Andre Heinecke <andre.heinecke@intevation.de>
parents: 383
diff changeset
183 * telling it what to do. We want to handle that rather
638db75f0fdf Ignore sigpipe if the child closed the channel or there is an error
Andre Heinecke <andre.heinecke@intevation.de>
parents: 383
diff changeset
184 * then die unexpectedly. */
638db75f0fdf Ignore sigpipe if the child closed the channel or there is an error
Andre Heinecke <andre.heinecke@intevation.de>
parents: 383
diff changeset
185 signal(SIGPIPE, SIG_IGN);
638db75f0fdf Ignore sigpipe if the child closed the channel or there is an error
Andre Heinecke <andre.heinecke@intevation.de>
parents: 383
diff changeset
186
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
187 /* Send the instructions */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
188 for (i = 0; to_install && to_install[i]; i++)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
189 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
190 if (fprintf (stream, "I:%s\n", to_install[i]) <= 3)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
191 {
478
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
192 int err = errno;
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
193 ERRORPRINTF ("Write failed: %s \n", strerror(err));
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
194 if (err == 32)
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
195 {
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
196 /* Broken pipe is expected if there are no NSS stores
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
197 to be found the process just exits. That's ok */
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
198 success = true;
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
199 }
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
200 goto done;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
201 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
203
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
204 for (i = 0; to_remove && to_remove[i]; i++)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
205 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
206 if (fprintf (stream, "R:%s\n", to_remove[i]) <= 3)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
207 {
478
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
208 int err = errno;
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
209 ERRORPRINTF ("Write failed: %s \n", strerror(err));
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
210 if (err == 32)
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
211 {
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
212 /* Broken pipe is expected if there are no NSS stores
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
213 to be found the process just exits. That's ok */
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
214 success = true;
214bf504c54f Handle broken pipe as it is expected behavior
Andre Heinecke <aheinecke@intevation.de>
parents: 476
diff changeset
215 }
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
216 goto done;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
217 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
218 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
219
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
220 success = true;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
221
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
222 done:
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
223 if (stream) {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
224 fclose (stream);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
225 }
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
226 xfree (argv[0]);
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
227 xfree (envp[0]);
383
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
228 close (pipe_fd[0]);
5eb7ee4ee819 Look up executable name based on /proc/self/exe
Andre Heinecke <andre.heinecke@intevation.de>
parents: 321
diff changeset
229 close (pipe_fd[1]);
302
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
230
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
231 if (success)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
232 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
233 return pid;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
234 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 int
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 write_stores_nss (char **to_install, char **to_remove)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
241 uid_t my_uid = getuid();
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
242
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 if (my_uid != 0)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
245 /* Running as a user */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
246 char *homedir = getenv ("HOME");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
247 pid_t childprocess = -1; /* Only one child for single user installation */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
248 int status = -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
249 if (!homedir)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
250 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
251 ERRORPRINTF ("Failed to find home directory\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
252 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
253
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
254 childprocess = start_procces_for_user (to_install, to_remove,
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
255 my_uid, getgid(), homedir);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
256
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
257 if (childprocess == -1)
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
258 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
259 ERRORPRINTF ("Failed to start childprocess!\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
260 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
261 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
262
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
263 childprocess = waitpid (childprocess, &status, 0);
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
264 if (childprocess == -1 || !WIFEXITED(status))
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
265 {
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
266 ERRORPRINTF ("Waitpid failed.\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
267 return -1;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
268 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
269
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
270 return 0;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
271 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
272 printf ("Installation as root is not yet implemented\n");
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
273 /* TODO root parse /etc/passwd for users with a home directory */
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
274 return 0;
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
275 }
fac7e1b0e558 Add nss store calling function and use it in cinst
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
276 #endif
http://wald.intevation.org/projects/trustbridge/