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| author | Rozhuk Ivan <rozhuk.im@gmail.com> | 2021-06-23 16:20:10 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2021-06-23 16:26:56 +0000 |
| commit | a75819461ec7c7d8468498362f9104637ff7c9e9 (patch) | |
| tree | 47bc3d127cc8a898e38bbd2d4c56ae3d9eab8b8d | |
| parent | 4fb3e0bb94abdd2d44b23937670a83876d11b97f (diff) | |
| download | src-a75819461ec7c7d8468498362f9104637ff7c9e9.tar.gz src-a75819461ec7c7d8468498362f9104637ff7c9e9.zip | |
devctl: add ADDR_ADD and ADDR_DEL devctl event for IFNET
Add devd event on network iface address add/remove. Can be used to
automate actions on any address change.
Reviewed by: imp@ (and minor style tweaks)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D30840
| -rw-r--r-- | sbin/devd/devd.conf.5 | 4 | ||||
| -rw-r--r-- | sys/net/route.c | 29 |
2 files changed, 33 insertions, 0 deletions
diff --git a/sbin/devd/devd.conf.5 b/sbin/devd/devd.conf.5 index 56e2df684f32..f6579ac3f20f 100644 --- a/sbin/devd/devd.conf.5 +++ b/sbin/devd/devd.conf.5 @@ -469,6 +469,10 @@ The network interface is attached to the system. The network interface is detached from the system. .It Li IFNET Ta Em inet Ta Li RENAME Ta The network interface is renamed. +.It Li IFNET Ta Em inet Ta Li ADDR_ADD Ta +The network interface address added. +.It Li IFNET Ta Em inet Ta Li ADDR_DEL Ta +The network interface address removed. .El .Pp .Bl -column "System" "Subsystem" "1234567" -compact diff --git a/sys/net/route.c b/sys/net/route.c index 2416aa9a983f..4f7eb6f64210 100644 --- a/sys/net/route.c +++ b/sys/net/route.c @@ -50,6 +50,7 @@ #include <sys/syslog.h> #include <sys/sysproto.h> #include <sys/proc.h> +#include <sys/devctl.h> #include <sys/domain.h> #include <sys/eventhandler.h> #include <sys/kernel.h> @@ -67,6 +68,7 @@ #include <netinet/in.h> #include <netinet/ip_mroute.h> +#include <netinet6/in6_var.h> VNET_PCPUSTAT_DEFINE(struct rtstat, rtstat); @@ -685,6 +687,10 @@ rt_maskedcopy(struct sockaddr *src, struct sockaddr *dst, struct sockaddr *netma int rt_addrmsg(int cmd, struct ifaddr *ifa, int fibnum) { +#if defined(INET) || defined(INET6) + struct sockaddr *sa = ifa->ifa_addr; + struct ifnet *ifp = ifa->ifa_ifp; +#endif KASSERT(cmd == RTM_ADD || cmd == RTM_DELETE, ("unexpected cmd %d", cmd)); @@ -693,6 +699,29 @@ rt_addrmsg(int cmd, struct ifaddr *ifa, int fibnum) EVENTHANDLER_DIRECT_INVOKE(rt_addrmsg, ifa, cmd); +#ifdef INET + if (sa->sa_family == AF_INET) { + char addrstr[INET_ADDRSTRLEN]; + char strbuf[INET_ADDRSTRLEN + 12]; + + inet_ntoa_r(((struct sockaddr_in *)sa)->sin_addr, addrstr); + snprintf(strbuf, sizeof(strbuf), "address=%s", addrstr); + devctl_notify("IFNET", ifp->if_xname, + (cmd == RTM_ADD) ? "ADDR_ADD" : "ADDR_DEL", strbuf); + } +#endif +#ifdef INET6 + if (sa->sa_family == AF_INET6) { + char addrstr[INET6_ADDRSTRLEN]; + char strbuf[INET6_ADDRSTRLEN + 12]; + + ip6_sprintf(addrstr, IFA_IN6(ifa)); + snprintf(strbuf, sizeof(strbuf), "address=%s", addrstr); + devctl_notify("IFNET", ifp->if_xname, + (cmd == RTM_ADD) ? "ADDR_ADD" : "ADDR_DEL", strbuf); + } +#endif + if (V_rt_add_addr_allfibs) fibnum = RT_ALL_FIBS; return (rtsock_addrmsg(cmd, ifa, fibnum)); |