@@ -9,5 +9,7 @@ extern const char *ll_index_to_name(unsigned idx);
extern const char *ll_idx_n2a(unsigned idx, char *buf);
extern int ll_index_to_type(unsigned idx);
extern unsigned ll_index_to_flags(unsigned idx);
+extern unsigned ll_index_to_addr(unsigned idx, unsigned char *addr,
+ unsigned alen);
#endif /* __LL_MAP_H__ */
@@ -134,6 +134,27 @@ unsigned ll_index_to_flags(unsigned idx)
return 0;
}
+unsigned ll_index_to_addr(unsigned idx, unsigned char *addr,
+ unsigned alen)
+{
+ struct idxmap *im;
+
+ if (idx == 0)
+ return 0;
+
+ for (im = idxmap[idx&0xF]; im; im = im->next) {
+ if (im->index == idx) {
+ if (alen > sizeof(im->addr))
+ alen = sizeof(im->addr);
+ if (alen > im->alen)
+ alen = im->alen;
+ memcpy(addr, im->addr, alen);
+ return alen;
+ }
+ }
+ return 0;
+}
+
unsigned ll_name_to_index(const char *name)
{
static char ncache[16];
After calling ll_init_map, all of the information stored in the link-layer map can be retrieved by function calls (ll_index_to_*), except for the link-layer address. This patch fills the gap by adding a ll_index_to_addr function. Changes welcome. Signed-off-by: David Ward <david.ward@ll.mit.edu> --- include/ll_map.h | 2 ++ lib/ll_map.c | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+), 0 deletions(-)