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-rw-r--r--ggsn/ggsn.c17
-rw-r--r--ggsn/ggsn.h1
-rw-r--r--ggsn/ggsn_vty.c20
3 files changed, 37 insertions, 1 deletions
diff --git a/ggsn/ggsn.c b/ggsn/ggsn.c
index ef2357b..3e095f0 100644
--- a/ggsn/ggsn.c
+++ b/ggsn/ggsn.c
@@ -241,13 +241,28 @@ int apn_start(struct apn_ctx *apn)
}
}
+ if (apn->v6.cfg.ll_prefix.addr.len) {
+ LOGPAPN(LOGL_INFO, apn, "Setting tun IPv6 link-local address %s\n",
+ in46p_ntoa(&apn->v6.cfg.ll_prefix));
+ if (tun_addaddr(apn->tun.tun, &apn->v6.cfg.ll_prefix.addr, NULL,
+ apn->v6.cfg.ll_prefix.prefixlen)) {
+ LOGPAPN(LOGL_ERROR, apn, "Failed to set tun IPv6 link-local address %s: %s. "
+ "Ensure you have ipv6 support and not used the disable_ipv6 sysctl?\n",
+ in46p_ntoa(&apn->v6.cfg.ll_prefix), strerror(errno));
+ apn_stop(apn, false);
+ return -1;
+ }
+ apn->v6_lladdr = apn->v6.cfg.ll_prefix.addr.v6;
+ }
+
if (apn->tun.cfg.ipup_script) {
LOGPAPN(LOGL_INFO, apn, "Running ip-up script %s\n",
apn->tun.cfg.ipup_script);
tun_runscript(apn->tun.tun, apn->tun.cfg.ipup_script);
}
- if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6)) {
+ if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6) &&
+ apn->v6.cfg.ll_prefix.addr.len == 0) {
rc = tun_ip_local_get(apn->tun.tun, &ipv6_tun_linklocal_ip, 1, IP_TYPE_IPv6_LINK);
if (rc < 1) {
LOGPAPN(LOGL_ERROR, apn, "Cannot obtain IPv6 link-local address of interface: %s\n",
diff --git a/ggsn/ggsn.h b/ggsn/ggsn.h
index c0774c4..e252548 100644
--- a/ggsn/ggsn.h
+++ b/ggsn/ggsn.h
@@ -22,6 +22,7 @@ struct ggsn_ctx;
struct apn_ctx_ip {
struct {
struct in46_prefix ifconfig_prefix;
+ struct in46_prefix ll_prefix;
struct in46_prefix static_prefix;
struct in46_prefix dynamic_prefix;
/* v4 DNS server names */
diff --git a/ggsn/ggsn_vty.c b/ggsn/ggsn_vty.c
index 6e15ae4..db392fa 100644
--- a/ggsn/ggsn_vty.c
+++ b/ggsn/ggsn_vty.c
@@ -513,6 +513,24 @@ DEFUN(cfg_apn_no_ipv6_ifconfig, cfg_apn_no_ipv6_ifconfig_cmd,
return CMD_SUCCESS;
}
+DEFUN(cfg_apn_ipv6_linklocal, cfg_apn_ipv6_linklocal_cmd,
+ "ipv6 link-local X:X::X:X/M",
+ IP6_STR IFCONFIG_STR "IPv6 Link-local Adress/Prefix-Length\n")
+{
+ struct apn_ctx *apn = (struct apn_ctx *) vty->index;
+ str2prefix(&apn->v6.cfg.ll_prefix, argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_apn_no_ipv6_linklocal, cfg_apn_no_ipv6_linklocal_cmd,
+ "no ipv6 link-local",
+ NO_STR IP6_STR IFCONFIG_STR)
+{
+ struct apn_ctx *apn = (struct apn_ctx *) vty->index;
+ memset(&apn->v6.cfg.ll_prefix, 0, sizeof(apn->v6.cfg.ll_prefix));
+ return CMD_SUCCESS;
+}
+
#define DNS_STRINGS "Configure DNS Server\n" "primary/secondary DNS\n" "IP address of DNS Sever\n"
DEFUN(cfg_apn_ip_dns, cfg_apn_ip_dns_cmd,
@@ -893,6 +911,8 @@ int ggsn_vty_init(void)
install_element(APN_NODE, &cfg_apn_no_ip_ifconfig_cmd);
install_element(APN_NODE, &cfg_apn_ipv6_ifconfig_cmd);
install_element(APN_NODE, &cfg_apn_no_ipv6_ifconfig_cmd);
+ install_element(APN_NODE, &cfg_apn_ipv6_linklocal_cmd);
+ install_element(APN_NODE, &cfg_apn_no_ipv6_linklocal_cmd);
install_element(APN_NODE, &cfg_apn_gpdu_seq_cmd);
install_element(APN_NODE, &cfg_apn_no_gpdu_seq_cmd);