From b43c2221f6df23770ff1b53679a330c39025afa9 Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Thu, 29 Feb 2024 12:45:51 +0900 Subject: [PATCH] sd-ndisc-router: introduce sd_ndisc_router_get_sender_mac() The Router Advertisement option can take the MAC address of the sender. Let's introduce a function to get it from the parsed options. --- src/libsystemd-network/sd-ndisc-router.c | 6 ++++++ src/systemd/sd-ndisc-router.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/src/libsystemd-network/sd-ndisc-router.c b/src/libsystemd-network/sd-ndisc-router.c index 46baa4fc8e..fcc2bbce6e 100644 --- a/src/libsystemd-network/sd-ndisc-router.c +++ b/src/libsystemd-network/sd-ndisc-router.c @@ -175,6 +175,12 @@ int sd_ndisc_router_get_preference(sd_ndisc_router *rt, unsigned *ret) { return 0; } +int sd_ndisc_router_get_sender_mac(sd_ndisc_router *rt, struct ether_addr *ret) { + assert_return(rt, -EINVAL); + + return ndisc_option_get_mac(rt->options, SD_NDISC_OPTION_SOURCE_LL_ADDRESS, ret); +} + int sd_ndisc_router_get_mtu(sd_ndisc_router *rt, uint32_t *ret) { assert_return(rt, -EINVAL); assert_return(ret, -EINVAL); diff --git a/src/systemd/sd-ndisc-router.h b/src/systemd/sd-ndisc-router.h index 57dbb12817..dde37bcfd7 100644 --- a/src/systemd/sd-ndisc-router.h +++ b/src/systemd/sd-ndisc-router.h @@ -18,6 +18,7 @@ ***/ #include +#include #include #include #include @@ -42,6 +43,7 @@ int sd_ndisc_router_get_lifetime(sd_ndisc_router *rt, uint64_t *ret); int sd_ndisc_router_get_lifetime_timestamp(sd_ndisc_router *rt, clockid_t clock, uint64_t *ret); int sd_ndisc_router_get_reachable_time(sd_ndisc_router *rt, uint64_t *ret); int sd_ndisc_router_get_retransmission_time(sd_ndisc_router *rt, uint64_t *ret); +int sd_ndisc_router_get_sender_mac(sd_ndisc_router *rt, struct ether_addr *ret); int sd_ndisc_router_get_mtu(sd_ndisc_router *rt, uint32_t *ret); /* Generic option access */