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/*
* editpolicy_offline.c
*
* TOMOYO Linux's utilities.
*
* Copyright (C) 2005-2010 NTT DATA CORPORATION
*
* Version: 1.7.2 2010/04/01
*
*/
#include "ccstools.h"
struct misc_policy {
const struct path_info **list;
int list_len;
};
/* Prototypes */
static void handle_misc_policy(struct misc_policy *mp, FILE *fp,
_Bool is_write);
/* Utility functions */
static void handle_misc_policy(struct misc_policy *mp, FILE *fp, _Bool is_write)
{
int i;
if (!is_write)
goto read_policy;
while (true) {
char *line = freadline(fp);
const struct path_info *cp;
_Bool is_delete;
if (!line)
break;
if (!line[0])
continue;
is_delete = str_starts(line, "delete ");
cp = savename(line);
if (!cp)
out_of_memory();
if (!is_delete)
goto append_policy;
for (i = 0; i < mp->list_len; i++)
/* Faster comparison, for they are savename'd. */
if (mp->list[i] == cp)
break;
if (i < mp->list_len)
for (mp->list_len--; i < mp->list_len; i++)
mp->list[i] = mp->list[i + 1];
continue;
append_policy:
for (i = 0; i < mp->list_len; i++)
/* Faster comparison, for they are savename'd. */
if (mp->list[i] == cp)
break;
if (i < mp->list_len)
continue;
mp->list = realloc(mp->list, (mp->list_len + 1)
* sizeof(const struct path_info *));
if (!mp->list)
out_of_memory();
mp->list[mp->list_len++] = cp;
}
return;
read_policy:
for (i = 0; i < mp->list_len; i++)
fprintf(fp, "%s\n", mp->list[i]->name);
}
/* Variables */
int persistent_fd = EOF;
/* Main functions */
void send_fd(char *data, int *fd)
{
struct msghdr msg;
struct iovec iov = { data, strlen(data) };
char cmsg_buf[CMSG_SPACE(sizeof(int))];
struct cmsghdr *cmsg = (struct cmsghdr *) cmsg_buf;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = cmsg_buf;
msg.msg_controllen = sizeof(cmsg_buf);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
cmsg->cmsg_len = CMSG_LEN(sizeof(int));
msg.msg_controllen = cmsg->cmsg_len;
memmove(CMSG_DATA(cmsg), fd, sizeof(int));
sendmsg(persistent_fd, &msg, 0);
close(*fd);
}
void editpolicy_offline_daemon(void)
{
struct misc_policy mp[3];
struct domain_policy dp;
static const int buffer_len = 8192;
char *buffer = malloc(buffer_len);
if (!buffer)
out_of_memory();
memset(&dp, 0, sizeof(dp));
memset(&mp, 0, sizeof(mp));
get();
find_or_assign_new_domain(&dp, ROOT_NAME, false, false);
while (true) {
FILE *fp;
struct msghdr msg;
struct iovec iov = { buffer, buffer_len - 1 };
char cmsg_buf[CMSG_SPACE(sizeof(int))];
struct cmsghdr *cmsg = (struct cmsghdr *) cmsg_buf;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = cmsg_buf;
msg.msg_controllen = sizeof(cmsg_buf);
memset(buffer, 0, buffer_len);
errno = 0;
if (recvmsg(persistent_fd, &msg, 0) <= 0)
break;
cmsg = CMSG_FIRSTHDR(&msg);
if (!cmsg)
break;
if (cmsg->cmsg_level == SOL_SOCKET &&
cmsg->cmsg_type == SCM_RIGHTS &&
cmsg->cmsg_len == CMSG_LEN(sizeof(int))) {
const int *fdp = (int *) CMSG_DATA(cmsg);
const int fd = *fdp;
fp = fdopen(fd, "w+");
if (!fp) {
close(fd);
continue;
}
} else {
break;
}
if (str_starts(buffer, "POST ")) {
if (!strcmp(buffer, proc_policy_domain_policy))
handle_domain_policy(&dp, fp, true);
else if (!strcmp(buffer, proc_policy_exception_policy))
handle_misc_policy(&mp[0], fp, true);
else if (!strcmp(buffer, proc_policy_profile))
handle_misc_policy(&mp[1], fp, true);
else if (!strcmp(buffer, proc_policy_manager))
handle_misc_policy(&mp[2], fp, true);
} else if (str_starts(buffer, "GET ")) {
if (!strcmp(buffer, proc_policy_domain_policy))
handle_domain_policy(&dp, fp, false);
else if (!strcmp(buffer, proc_policy_exception_policy))
handle_misc_policy(&mp[0], fp, false);
else if (!strcmp(buffer, proc_policy_profile))
handle_misc_policy(&mp[1], fp, false);
else if (!strcmp(buffer, proc_policy_manager))
handle_misc_policy(&mp[2], fp, false);
}
fclose(fp);
}
put();
clear_domain_policy(&dp);
{
int i;
for (i = 0; i < 3; i++) {
free(mp[i].list);
mp[i].list = NULL;
mp[i].list_len = 0;
}
}
free(buffer);
_exit(0);
}
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