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-rw-r--r--mysys/my_gethwaddr.c214
1 files changed, 214 insertions, 0 deletions
diff --git a/mysys/my_gethwaddr.c b/mysys/my_gethwaddr.c
new file mode 100644
index 00000000..1f344af8
--- /dev/null
+++ b/mysys/my_gethwaddr.c
@@ -0,0 +1,214 @@
+/*
+ Copyright (c) 2004, 2010, Oracle and/or its affiliates
+ Copyright (c) 2011, Monty Program Ab
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/* get hardware address for an interface */
+/* if there are many available, any non-zero one can be used */
+
+#include "mysys_priv.h"
+#include <m_string.h>
+
+#ifndef MAIN
+
+#if defined(_AIX) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__sun) || defined(_WIN32)
+static my_bool memcpy_and_test(uchar *to, uchar *from, uint len)
+{
+ uint i, res= 1;
+
+ for (i= 0; i < len; i++)
+ if ((*to++= *from++))
+ res= 0;
+ return res;
+}
+#endif
+
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+#ifdef __OpenBSD__
+#include <netinet/in.h>
+#include <net/if_arp.h>
+#include <netinet/if_ether.h>
+#else
+#include <net/ethernet.h>
+#endif
+#include <sys/sysctl.h>
+#include <net/route.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+
+my_bool my_gethwaddr(uchar *to)
+{
+ size_t len;
+ uchar *buf, *next, *end, *addr;
+ struct if_msghdr *ifm;
+ struct sockaddr_dl *sdl;
+ int res= 1, mib[6]= {CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
+
+ if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
+ goto err;
+ if (!(buf = alloca(len)))
+ goto err;
+ if (sysctl(mib, 6, buf, &len, NULL, 0) < 0)
+ goto err;
+
+ end = buf + len;
+
+ for (next = buf ; res && next < end ; next += ifm->ifm_msglen)
+ {
+ ifm = (struct if_msghdr *)next;
+ if (ifm->ifm_type == RTM_IFINFO)
+ {
+ sdl = (struct sockaddr_dl *)(ifm + 1);
+ addr= (uchar *)LLADDR(sdl);
+ res= memcpy_and_test(to, addr, ETHER_ADDR_LEN);
+ }
+ }
+
+err:
+ return res;
+}
+
+#elif defined(_AIX) || defined(__linux__) || defined(__sun)
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <net/if_arp.h>
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>
+#endif
+
+#define ETHER_ADDR_LEN 6
+
+my_bool my_gethwaddr(uchar *to)
+{
+ int fd, res= 1;
+#ifdef _AIX
+ struct ifhwaddr_req ifr[32];
+#else
+ struct ifreq ifr[32];
+#endif
+ struct ifconf ifc;
+ DBUG_ENTER("my_gethwaddr");
+
+ ifc.ifc_req= (struct ifreq *) ifr;
+ ifc.ifc_len= sizeof(ifr);
+
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0)
+ {
+ DBUG_PRINT("error", ("socket() call failed with %d", errno));
+ goto err;
+ }
+
+ if (ioctl(fd, SIOCGIFCONF, (char*)&ifc) >= 0)
+ {
+ uint i;
+ for (i= 0; res && i < ifc.ifc_len / sizeof(ifr[0]); i++)
+ {
+#if defined(_AIX) || defined(__linux__)
+#if defined(__linux__)
+#define HWADDR_DATA ifr[i].ifr_hwaddr.sa_data
+#else
+#define HWADDR_DATA ifr[i].ifr_hwaddr
+#endif
+ if (ioctl(fd, SIOCGIFHWADDR, &ifr[i]) >= 0)
+ res= memcpy_and_test(to, (uchar *)&HWADDR_DATA,
+ ETHER_ADDR_LEN);
+#else
+ /*
+ A bug in OpenSolaris used to prevent non-root from getting a mac
+ address: {no url. Oracle killed the old OpenSolaris bug database}
+
+ Thus, we'll use an alternative method and extract the address from the
+ arp table.
+ */
+ struct arpreq arpr;
+ arpr.arp_pa= ifr[i].ifr_addr;
+
+ if (ioctl(fd, SIOCGARP, (char*)&arpr) >= 0)
+ res= memcpy_and_test(to, (uchar *)&arpr.arp_ha.sa_data,
+ ETHER_ADDR_LEN);
+#endif
+ }
+ }
+
+ close(fd);
+err:
+ DBUG_RETURN(res);
+}
+
+#elif defined(_WIN32)
+#include <winsock2.h>
+#include <iphlpapi.h>
+#pragma comment(lib, "iphlpapi.lib")
+
+#define ETHER_ADDR_LEN 6
+
+my_bool my_gethwaddr(uchar *to)
+{
+ my_bool res= 1;
+
+ IP_ADAPTER_INFO *info= NULL;
+ ULONG info_len= 0;
+
+ if (GetAdaptersInfo(info, &info_len) != ERROR_BUFFER_OVERFLOW)
+ goto err;
+
+ info= (IP_ADAPTER_INFO *)alloca(info_len);
+
+ if (GetAdaptersInfo(info, &info_len) != NO_ERROR)
+ goto err;
+
+ while (info && res)
+ {
+ if (info->Type == MIB_IF_TYPE_ETHERNET &&
+ info->AddressLength == ETHER_ADDR_LEN)
+ {
+ res= memcpy_and_test(to, info->Address, ETHER_ADDR_LEN);
+ }
+ info = info->Next;
+ }
+
+err:
+ return res;
+}
+
+#else /* unsupported system */
+/* just fail */
+my_bool my_gethwaddr(uchar *to __attribute__((unused)))
+{
+ return 1;
+}
+#endif
+
+#else /* MAIN */
+int main(int argc __attribute__((unused)),char **argv)
+{
+ uchar mac[6];
+ uint i;
+ MY_INIT(argv[0]);
+ if (my_gethwaddr(mac))
+ {
+ printf("my_gethwaddr failed with errno %d\n", errno);
+ exit(1);
+ }
+ for (i= 0; i < sizeof(mac); i++)
+ {
+ if (i) printf(":");
+ printf("%02x", mac[i]);
+ }
+ printf("\n");
+ return 0;
+}
+#endif