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authormax <max>2003-02-07 03:23:16 (UTC)
committer max <max>2003-02-07 03:23:16 (UTC)
commit2e7e176817b5d162b054f97ed6650e659730f4ae (patch) (side-by-side diff)
tree6b64a6ab7cbef944a564eabe6f63d8ac89eafefc
parent9062b40d50264bc479ee0425778c552ef20ee304 (diff)
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Flags and datalink
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc122
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh2
2 files changed, 68 insertions, 56 deletions
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
index def1a4b..1add34c 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
@@ -24,5 +24,5 @@ int card_into_monitormode (pcap_t **orighandle, char *device, int cardtype)
if (!card_set_promisc_up(device))
{
- wl_logerr("Cannot set interface to promisc mode: %s", strerror(errno));
+ wl_logerr("Cannot set interface to promisc mode");
return 0;
}
@@ -65,69 +65,79 @@ int card_into_monitormode (pcap_t **orighandle, char *device, int cardtype)
}
}
-
+
+ /* Setting the promiscous and up flag to the interface */
+ if (!card_check_rfmon_datalink(device))
+ {
+ wl_logerr("Cannot set interface to rfmon mode");
+ return 0;
+ }
+ else
+ {
+ wl_loginfo("Interface set to rfmon mode");
+ }
return 1;
}
+/* Check card is in the rfmon mode */
+int card_check_rfmon_datalink (char *device)
+{
+ int datalinktype=0;
+ pcap_t *phandle;
+ phandle = pcap_open_live(device, 65,0,0,NULL);
+ datalinktype = pcap_datalink (phandle);
+
+ if (datalinktype != DLT_IEEE802_11) /* Rawmode is IEEE802_11 */
+ {
+ return 0;
+ }
+ else
+ {
+ wl_loginfo("Your successfully listen on %s in 802.11 raw mode", device);
+ return 1;
+ }
+}
+
/* Set card into promisc mode */
int card_set_promisc_up (const char *device)
{
- struct ifconf ifc;
- struct ifreq ifr_x[50];
- u_int i;
- int sockfd, err;
- err=0;
- /* opening a socket for issuing the iocalls */
- sockfd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
-
- if (sockfd < 0)
+ int err;
+ /* First generate a socket to use with iocalls */
+ int fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0)
{
- /* In case of an error - mjm proove that please*/
+ /* In case of an error */
perror("socket");
- return 1;
+ return 0;
+ }
+
+ /* Fill an empty an interface structure with the right flags (UP and Promsic) */
+ struct ifreq ifr;
+ strncpy(ifr.ifr_name, device,10);
+ ifr.ifr_flags = IFF_UP + IFF_PROMISC;
+ err = ioctl(fd, SIOCSIFFLAGS, &ifr);
+ if (err < 0)
+ {
+ perror("Could not access the interface, ");
+ return 0;
}
- /* Define room for 50 interfaces */
- ifc.ifc_len = 50 * sizeof(struct ifreq);
- ifc.ifc_req = ifr_x;
- /* Get the config of the interfaces */
- err = ioctl(sockfd, SIOCGIFCONF, &ifc);
- if (err == -1) return 1;
- /* For each interface*/
- for (i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++)
- {
- /* To complete , should get the IP, if no is assigned, asign one */
- /*err = ioctl(sockfd, SIOCGIFADDR, &ifr_x[i]);
- if (err == -1) perror("SIOCGIFADDR: ");
- printf ("Address: %s\n",Sock_ntop_host(ifr_x[i].ifr_addr.sa_family,sizeof(ifr_x[i].ifr_addr.sa_family)));
- */
- if(strncmp(ifr_x[i].ifr_name,device,5) == 0)
- {
- /* Get the flags */
- err = ioctl(sockfd, SIOCGIFFLAGS, &ifr_x[i]);
- if (err == -1)
- {
- perror("SIOCGIFFLAGS: ");
- return 1;
- }
- /* Check if the Interface is UP and PROMISC */
- if (ifr_x[i].ifr_flags & IFF_PROMISC && ifr_x[i].ifr_flags & IFF_UP)
- {
- /* only debug text */
- printf ("%s is PROMISC and UP \n",ifr_x[i].ifr_name);
- }
- else
- {
- /* Set the promisc flag to the interface */
- ifr_x[i].ifr_flags=ifr_x[i].ifr_flags+IFF_PROMISC;
- err = ioctl(sockfd, SIOCSIFFLAGS, &ifr_x[i]);
- if (err == -1)
- {
- /* Could not set the interface into promisc mode */
- perror("SIOCSIFFLAGS: ");
- }
- }
- }
- }
- /* All is fine */
+ /* Get the informations back from the interface to check if the flags are correct */
+ strncpy(ifr.ifr_name, device,10);
+ ioctl(fd, SIOCGIFFLAGS, &ifr);
+ if (err < 0)
+ {
+ perror("Could not access the interface, ");
return 0;
+ }
+
+ if(ifr.ifr_flags && IFF_UP)
+ {
+ printf("%s is ok\n", device);
+ return 1;
+ }
+ else
+ {
+ printf("%s flags could not be set", device);
+ return 0;
+ }
}
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
index 7750fb6..babb109 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
@@ -11,4 +11,5 @@
#include <sys/socket.h>
#include <netinet/in.h>
+#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <linux/if.h>
@@ -36,4 +37,5 @@ extern "C"
/* Prototypes */
+int card_check_rfmon_datalink (char *device);
int card_into_monitormode (pcap_t **, char *, int);
int card_set_promisc_up (const char *);