Adding ifid option to the dhcp6c.conf prefix-interface statementHEADmaster

This adds the ability to override the default EUI-64 address selection.
Useful for interfaces without a unique hardware address, or for creating
more userfriendly addresses in general.

Signed-off-by: Bjørn Mork <bjorn@mork.no>

1 files changed, 5 insertions, 0 deletions

diff --git a/config.c b/config.c
index 23598fc..bb16c21 100644
--- a/config.c
+++ b/config.c
@@ -471,6 +471,7 @@ add_pd_pif(iapdc, cfl0)
 {
 	struct cf_list *cfl;
 	struct prefix_ifconf *pif;
+	int i;
 
 	/* duplication check */
 	for (pif = TAILQ_FIRST(&iapdc->iapd_pif_list); pif;
@@ -524,6 +525,10 @@ add_pd_pif(iapdc, cfl0)
 				goto bad;
 			}
 			break;
+		case IFPARAM_IFID:
+			for (i = sizeof(pif->ifid) -1; i >= 0; i--)
+				pif->ifid[i] = (cfl->num >> 8*(sizeof(pif->ifid) - 1 - i)) & 0xff;
+			break;
 		default:
 			debug_printf(LOG_ERR, FNAME, "%s:%d internal error: "
 			    "invalid configuration",