*
* Connection Manager
*
- * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
* Copyright (C) 2003-2005 Go-Core Project
* Copyright (C) 2003-2006 Helsinki University of Technology
*
#include <netinet/icmp6.h>
#include <fcntl.h>
#include <linux/if_tun.h>
+#include <ctype.h>
#include "connman.h"
struct inet_rtnl_cb_data *rtnl_data = user_data;
struct __connman_inet_rtnl_handle *rth = rtnl_data->rtnl;
struct nlmsghdr *h = NULL;
+ struct sockaddr_nl nladdr;
+ socklen_t addr_len = sizeof(nladdr);
unsigned char buf[4096];
void *ptr = buf;
gsize len;
- int status;
+ int status, fd;
memset(buf, 0, sizeof(buf));
+ memset(&nladdr, 0, sizeof(nladdr));
- status = g_io_channel_read_chars(chan, (gchar *) buf,
- sizeof(buf), &len, NULL);
+ fd = g_io_channel_unix_get_fd(chan);
- DBG("status %d", status);
+ status = recvfrom(fd, buf, sizeof(buf), 0,
+ (struct sockaddr *) &nladdr, &addr_len);
+ if (status < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ return 0;
- switch (status) {
- case G_IO_STATUS_NORMAL:
- break;
- case G_IO_STATUS_AGAIN:
- return 0;
- default:
return -1;
}
+ if (status == 0)
+ return -1;
+
+ if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
+ DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
+ return 0;
+ }
+
+ len = status;
+
while (len > 0) {
struct nlmsgerr *err;
struct rtattr *rta;
if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
- DBG("Error! max allowed bound %d exceeded", maxlen);
+ DBG("Error! max allowed bound %zd exceeded", maxlen);
return -1;
}
rta = NLMSG_TAIL(n);
return 0;
}
+
+/* Check routine modified from ics-dhcp 4.2.3-P2 */
+connman_bool_t connman_inet_check_hostname(const char *ptr, size_t len)
+{
+ const char *p;
+
+ /*
+ * Not empty or complete length not over 255 characters.
+ */
+ if ((len == 0) || (len > 256))
+ return FALSE;
+
+ /*
+ * Consists of [[:alnum:]-]+ labels separated by [.]
+ * a [_] is against RFC but seems to be "widely used"
+ */
+ for (p = ptr; (*p != 0) && (len-- > 0); p++) {
+
+ if ((*p == '-') || (*p == '_')) {
+ /*
+ * Not allowed at begin or end of a label.
+ */
+ if (((p - ptr) == 0) || (len == 0) || (p[1] == '.'))
+ return FALSE;
+
+ } else if (*p == '.') {
+ /*
+ * Each label has to be 1-63 characters;
+ * we allow [.] at the end ('foo.bar.')
+ */
+ size_t d = p - ptr;
+
+ if ((d <= 0) || (d >= 64))
+ return FALSE;
+
+ ptr = p + 1; /* Jump to the next label */
+
+ } else if (isalnum((unsigned char)*p) == 0) {
+ /*
+ * Also numbers at the begin are fine
+ */
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}