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-rw-r--r--python-ethtool/etherinfo.c77
1 files changed, 63 insertions, 14 deletions
diff --git a/python-ethtool/etherinfo.c b/python-ethtool/etherinfo.c
index 7ae5798..68cc2e6 100644
--- a/python-ethtool/etherinfo.c
+++ b/python-ethtool/etherinfo.c
@@ -24,6 +24,7 @@
#include <stdlib.h>
#include <asm/types.h>
#include <sys/socket.h>
+#include <netlink/route/rtnl.h>
#include <assert.h>
#include <errno.h>
#include "etherinfo_struct.h"
@@ -34,6 +35,30 @@
* Internal functions for working with struct etherinfo
*
*/
+#define SET_STR_VALUE(dst, src) { \
+ if( dst ) { \
+ free(dst); \
+ }; \
+ dst = strdup(src); \
+ }
+
+
+void free_ipv6addresses(struct ipv6address *ptr) {
+ struct ipv6address *ipv6ptr = ptr;
+
+ if( !ptr ) {
+ return;
+ }
+
+ while( ipv6ptr ) {
+ struct ipv6address *tmp = ipv6ptr->next;
+
+ free(ipv6ptr->address);
+ free(ipv6ptr);
+ ipv6ptr = tmp;
+ }
+}
+
void free_etherinfo(struct etherinfo *ptr)
{
if( ptr == NULL ) { // Just for safety
@@ -51,25 +76,35 @@ void free_etherinfo(struct etherinfo *ptr)
if( ptr->ipv4_broadcast ) {
free(ptr->ipv4_broadcast);
}
- if( ptr->ipv6_address ) {
- free(ptr->ipv6_address);
+ if( ptr->ipv6_addresses ) {
+ free_ipv6addresses(ptr->ipv6_addresses);
}
free(ptr);
}
+struct ipv6address * etherinfo_add_ipv6(struct ipv6address *addrptr, const char *addr, int netmask, int scope) {
+ struct ipv6address *newaddr = NULL;
+
+ newaddr = calloc(1, sizeof(struct ipv6address)+2);
+ if( !newaddr ) {
+ fprintf(stderr, "** ERROR ** Could not allocate memory for a new IPv6 address record (%s/%i [%i])",
+ addr, netmask, scope);
+ return addrptr;
+ }
+
+ SET_STR_VALUE(newaddr->address, addr);
+ newaddr->netmask = netmask;
+ newaddr->scope = scope;
+ newaddr->next = addrptr;
+ return newaddr;
+}
+
/*
* libnl callback functions
*
*/
-#define SET_STR_VALUE(dst, src) { \
- if( dst ) { \
- free(dst); \
- }; \
- dst = strdup(src); \
- }
-
static void callback_nl_link(struct nl_object *obj, void *arg)
{
struct etherinfo *ethi = (struct etherinfo *) arg;
@@ -134,8 +169,10 @@ static void callback_nl_address(struct nl_object *obj, void *arg)
SET_STR_VALUE(ethi->ipv4_broadcast, brdcst_str);
}
} else {
- SET_STR_VALUE(ethi->ipv6_address, ip_str);
- ethi->ipv6_netmask = rtnl_addr_get_prefixlen((struct rtnl_addr*) obj);
+ ethi->ipv6_addresses = etherinfo_add_ipv6(ethi->ipv6_addresses,
+ ip_str,
+ rtnl_addr_get_prefixlen((struct rtnl_addr*) obj),
+ rtnl_addr_get_scope((struct rtnl_addr*) obj));
}
return;
default:
@@ -167,9 +204,17 @@ void dump_etherinfo(FILE *fp, struct etherinfo *ptr)
}
fprintf(fp, "\n");
}
- if( ptr->ipv6_address ) {
- fprintf(fp, "\tIPv6 address: %s/%i\n",
- ptr->ipv6_address, ptr->ipv6_netmask);
+ if( ptr->ipv6_addresses ) {
+ struct ipv6address *ipv6 = ptr->ipv6_addresses;
+
+ fprintf(fp, "\tIPv6 addresses:\n");
+ for(; ipv6; ipv6 = ipv6->next) {
+ char scope[66];
+
+ rtnl_scope2str(ipv6->scope, scope, 64);
+ fprintf(fp, "\t [%s] %s/%i\n",
+ scope, ipv6->address, ipv6->netmask);
+ }
}
fprintf(fp, "\n");
}
@@ -214,6 +259,10 @@ int get_etherinfo(struct etherinfo *ethinf, struct _nlconnection *nlc, nlQuery q
break;
case NLQRY_ADDR:
+ /* Remove old IPv6 information we might have */
+ free_ipv6addresses(ethinf->ipv6_addresses);
+ ethinf->ipv6_addresses = NULL;
+
/* Extract IP address information */
addr_cache = rtnl_addr_alloc_cache(nlc->nlrt_handle);
addr = rtnl_addr_alloc();