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[Patch #947352 from Jason Andryuk] Add support for AF_PACKET hardware addresses

This commit is contained in:
Andrew M. Kuchling 2004-07-10 23:39:35 +00:00
parent e6f8a89d1a
commit b8e1717041
1 changed files with 15 additions and 6 deletions
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21
Modules/socketmodule.c
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@ -50,9 +50,7 @@ Module interface:
specifying the ethernet interface and an integer specifying
the Ethernet protocol number to be received. For example:
("eth0",0x1234). Optional 3rd,4th,5th elements in the tuple
specify packet-type and ha-type/addr -- these are ignored by
networking code, but accepted since they are returned by the
getsockname() method.
specify packet-type and ha-type/addr.
Local naming conventions:
@ -1223,10 +1221,12 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args,
int protoNumber;
int hatype = 0;
int pkttype = 0;
char *haddr;
char *haddr = NULL;
unsigned int halen = 0;
if (!PyArg_ParseTuple(args, "si|iis", &interfaceName,
&protoNumber, &pkttype, &hatype, &haddr))
if (!PyArg_ParseTuple(args, "si|iis#", &interfaceName,
&protoNumber, &pkttype, &hatype,
&haddr, &halen))
return 0;
strncpy(ifr.ifr_name, interfaceName, sizeof(ifr.ifr_name));
ifr.ifr_name[(sizeof(ifr.ifr_name))-1] = '\0';
@ -1240,6 +1240,15 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args,
addr->sll_ifindex = ifr.ifr_ifindex;
addr->sll_pkttype = pkttype;
addr->sll_hatype = hatype;
if (halen > 8) {
PyErr_SetString(PyExc_ValueError,
"Hardware address must be 8 bytes or less");
return 0;
}
if (halen != 0) {
memcpy(&addr->sll_addr, haddr, halen);
}
addr->sll_halen = halen;
*addr_ret = (struct sockaddr *) addr;
*len_ret = sizeof *addr;
return 1;