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qsap: Add API to get device mac address based on interface name.

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This adds new API linux_get_ifhwaddr() which can be used to get
mac address of input interface. IOCTL SIOCGIFHWADDR is used to get
the interface address.

CRs-Fixed: 2080924
Change-Id: I1b825fb2c1f35280d2d57928be4f87d23d78decb
This commit is contained in:
Purushottam Kushwaha
2017-07-21 22:11:45 +05:30
committed by Gerrit - the friendly Code Review server
parent a7c3aa8a21
commit 0e5ec067f7
2 changed files with 29 additions and 0 deletions
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28
softap/sdk/qsap_api.c
View File

@@ -45,6 +45,7 @@
#include <unistd.h> #include <unistd.h>
#include <private/android_filesystem_config.h> #include <private/android_filesystem_config.h>
#include <net/if.h> #include <net/if.h>
#include <net/if_arp.h>
#include <netlink/netlink.h> #include <netlink/netlink.h>
#include <netlink/genl/genl.h> #include <netlink/genl/genl.h>
#include <netlink/genl/family.h> #include <netlink/genl/family.h>
@@ -3469,6 +3470,33 @@ int qsap_control_bridge(int argc, char ** argv)
} }
int linux_get_ifhwaddr(const char *ifname, char *addr)
{
struct ifreq ifr;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
#ifndef MAC2STR
#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
#endif
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(sock, SIOCGIFHWADDR, &ifr)) {
ALOGE("Could not get interface %s hwaddr: %s", ifname, strerror(errno));
return -1;
}
if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
ALOGE("%s: Invalid HW-addr family 0x%04x", ifname, ifr.ifr_hwaddr.sa_family);
return -1;
}
memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
ALOGE("%s: " MACSTR, ifname, MAC2STR(addr));
return 0;
}
int qsap_add_or_remove_interface(const char *newIface , int createIface) int qsap_add_or_remove_interface(const char *newIface , int createIface)
{ {
const char *wlanIface = "wlan0"; const char *wlanIface = "wlan0";

1
softap/sdk/qsap_api.h
View File

@@ -618,6 +618,7 @@ int qsap_prepare_softap(void);
int qsap_unprepare_softap(void); int qsap_unprepare_softap(void);
int qsap_is_fst_enabled(void); int qsap_is_fst_enabled(void);
int qsap_control_bridge(int argc, char ** argv); int qsap_control_bridge(int argc, char ** argv);
int linux_get_ifhwaddr(const char *ifname, char *addr);
#if __cplusplus #if __cplusplus
}; // extern "C" }; // extern "C"