2 * Copyright (C) 2006-2007 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 */
13 #include "user_list.h"
15 static struct list_head user_list;
18 * lookup user in user list file. Fills in a user struct containing
19 * filename of the user's public key as well as the permissions of that user.
20 * Returns 1 on success, 0 if user does not exist and < 0 on errors.
22 static void populate_user_list(char *user_list_file)
24 FILE *file_ptr = NULL;
27 /* keyword, user, key, perms */
28 char w[MAXLINE], n[MAXLINE], k[MAXLINE], p[MAXLINE], tmp[4][MAXLINE];
31 file_ptr = fopen(user_list_file, "r");
37 ret = para_fgets(line, MAXLINE, file_ptr);
39 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
42 if (sscanf(line,"%200s %200s %200s %200s", w, n, k, p) < 3)
44 if (strcmp(w, "user"))
46 PARA_DEBUG_LOG("found entry for %s\n", n);
47 u = para_malloc(sizeof(struct user));
48 u->name = para_strdup(n);
49 ret = get_rsa_key(k, &u->rsa, LOAD_PUBLIC_KEY);
53 num = sscanf(char_ptr, "%200[A-Z_],%200[A-Z_],%200[A-Z_],%200[A-Z_]",
54 tmp[0], tmp[1], tmp[2], tmp[3]);
55 PARA_DEBUG_LOG("found %i perm entries\n", num);
59 if (!strcmp(tmp[num], "VSS_READ"))
61 else if (!strcmp(tmp[num], "VSS_WRITE"))
62 u->perms |= VSS_WRITE;
63 else if (!strcmp(tmp[num], "AFS_READ"))
65 else if (!strcmp(tmp[num], "AFS_WRITE"))
66 u->perms |= AFS_WRITE;
67 else /* unknown permission */
68 PARA_WARNING_LOG("ignoring unknown permission: %s\n",
71 para_list_add(&u->node, &user_list);
78 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret));
83 * initialize the list of users allowed to connecto to para_server
85 * \param user_list_file the file containing access information
87 * If this function is called a second time, the contents of the
88 * previous call are discarded.
90 void init_user_list(char *user_list_file)
93 static int initialized;
96 list_for_each_entry_safe(u, tmp, &user_list, node) {
103 INIT_LIST_HEAD(&user_list);
105 populate_user_list(user_list_file);
109 * lookup user in user_list.
111 * \param name of the user
113 * \return a pointer to the corresponding user struct if the user was found,
116 struct user *lookup_user(const char *name)
119 list_for_each_entry(u, &user_list, node) {
120 if (strcmp(u->name, name))