2 * Copyright (C) 2006-2009 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file user_list.c User handling for para_server. */
10 #include <sys/types.h>
12 #include <openssl/rc4.h>
20 #include "user_list.h"
22 static struct list_head user_list
;
25 * Fill the list of users known to para_server.
27 * Populates a linked list of all users in \a user_list_file. Returns on
28 * success, calls exit() on errors.
30 static void populate_user_list(char *user_list_file
)
32 int ret
= -E_USERLIST
;
33 FILE *file_ptr
= fopen(user_list_file
, "r");
40 /* keyword, name, key, perms */
41 char w
[255], n
[255], k
[255], p
[255], tmp
[4][255];
45 ret
= para_fgets(line
, MAXLINE
, file_ptr
);
48 if (sscanf(line
,"%200s %200s %200s %200s", w
, n
, k
, p
) < 3)
50 if (strcmp(w
, "user"))
52 PARA_DEBUG_LOG("found entry for user %s\n", n
);
53 ret
= get_rsa_key(k
, &rsa
, LOAD_PUBLIC_KEY
);
55 PARA_NOTICE_LOG("skipping entry for user %s: %s\n", n
,
59 if (ret
< CHALLENGE_SIZE
+ 2 * CHALLENGE_SIZE
+ 41) {
60 PARA_WARNING_LOG("rsa key for %s too small\n", n
);
64 u
= para_malloc(sizeof(*u
));
65 u
->name
= para_strdup(n
);
68 num
= sscanf(p
, "%200[A-Z_],%200[A-Z_],%200[A-Z_],%200[A-Z_]",
69 tmp
[0], tmp
[1], tmp
[2], tmp
[3]);
70 PARA_DEBUG_LOG("found %i perm entries\n", num
);
73 if (!strcmp(tmp
[num
], "VSS_READ"))
75 else if (!strcmp(tmp
[num
], "VSS_WRITE"))
76 u
->perms
|= VSS_WRITE
;
77 else if (!strcmp(tmp
[num
], "AFS_READ"))
79 else if (!strcmp(tmp
[num
], "AFS_WRITE"))
80 u
->perms
|= AFS_WRITE
;
81 else /* unknown permission */
82 PARA_WARNING_LOG("ignoring unknown permission: %s\n",
85 para_list_add(&u
->node
, &user_list
);
91 PARA_EMERG_LOG("%s\n", para_strerror(-ret
));
96 * Initialize the list of users allowed to connect to to para_server.
98 * \param user_list_file The file containing access information.
100 * If this function is called for the second time, the contents of the
101 * previous call are discarded, i.e. the user list is reloaded.
103 void init_user_list(char *user_list_file
)
105 struct user
*u
, *tmp
;
106 static int initialized
;
109 list_for_each_entry_safe(u
, tmp
, &user_list
, node
) {
116 INIT_LIST_HEAD(&user_list
);
118 populate_user_list(user_list_file
);
122 * Lookup a user in the user list.
124 * \param name The name of the user.
126 * \return A pointer to the corresponding user struct if the user was found, \p
129 struct user
*lookup_user(const char *name
)
132 list_for_each_entry(u
, &user_list
, node
) {
133 if (strcmp(u
->name
, name
))