From: denis <denis@openbsd.org>
Date: Sat, 17 Aug 2024 09:52:11 +0000 (+0000)
Subject: Allow PPP interface to run in an rdomain and get a default route installed in the... 
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=895cab01f2e44747710971313dbbef968a4d19a2;p=openbsd

Allow PPP interface to run in an rdomain and get a default route installed in the same routing domain

Input and OK claudio@
---

diff --git a/sys/net/ppp_tty.c b/sys/net/ppp_tty.c
index 6c8d82c2e09..ce2131c2561 100644
--- a/sys/net/ppp_tty.c
+++ b/sys/net/ppp_tty.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ppp_tty.c,v 1.54 2022/01/02 22:36:04 jsg Exp $	*/
+/*	$OpenBSD: ppp_tty.c,v 1.55 2024/08/17 09:52:11 denis Exp $	*/
 /*	$NetBSD: ppp_tty.c,v 1.12 1997/03/24 21:23:10 christos Exp $	*/
 
 /*
@@ -371,6 +371,7 @@ pppwrite(struct tty *tp, struct uio *uio, int flag)
     bcopy(mtod(m0, u_char *), dst.sa_data, PPP_HDRLEN);
     m0->m_data += PPP_HDRLEN;
     m0->m_len -= PPP_HDRLEN;
+    m0->m_pkthdr.ph_rtableid = sc->sc_if.if_rdomain;
     return sc->sc_if.if_output(&sc->sc_if, m0, &dst, NULL);
 }
 
diff --git a/usr.sbin/pppd/sys-bsd.c b/usr.sbin/pppd/sys-bsd.c
index 25e1e336783..033e5772edf 100644
--- a/usr.sbin/pppd/sys-bsd.c
+++ b/usr.sbin/pppd/sys-bsd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sys-bsd.c,v 1.35 2024/08/10 05:32:28 jsg Exp $	*/
+/*	$OpenBSD: sys-bsd.c,v 1.36 2024/08/17 09:52:11 denis Exp $	*/
 
 /*
  * sys-bsd.c - System-dependent procedures for setting up
@@ -1031,6 +1031,23 @@ cifaddr(int u, u_int32_t o, u_int32_t h)
     return 1;
 }
 
+/*
+ * getrtableid - return routing table id of ppp interface
+ */
+int
+getrtableid(void)
+{
+    struct ifreq ifr;
+    int tableid = 0;
+
+    memset(&ifr, 0, sizeof(ifr));
+    strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+    if (ioctl(sockfd, SIOCGIFRDOMAIN, (caddr_t) &ifr) == 0)
+	tableid = ifr.ifr_rdomainid;
+
+    return tableid;
+}
+
 /*
  * sifdefaultroute - assign a default route through the address given.
  */
@@ -1073,6 +1090,7 @@ dodefaultroute(u_int32_t g, int cmd)
     rtmsg.hdr.rtm_type = cmd == 's'? RTM_ADD: RTM_DELETE;
     rtmsg.hdr.rtm_flags = RTF_UP | RTF_GATEWAY;
     rtmsg.hdr.rtm_version = RTM_VERSION;
+    rtmsg.hdr.rtm_tableid = getrtableid();
     rtmsg.hdr.rtm_seq = ++rtm_seq;
     rtmsg.hdr.rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK;
     rtmsg.dst.sin_len = sizeof(rtmsg.dst);