Date: Sat, 9 Apr 2011 10:22:18 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r220477 - stable/7/sys/net Message-ID: <201104091022.p39AMIER008957@svn.freebsd.org>
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Author: bz Date: Sat Apr 9 10:22:18 2011 New Revision: 220477 URL: http://svn.freebsd.org/changeset/base/220477 Log: MFC r219206: Hide the outer IP addresses of a tunnel interfaces (gif(4), gre(4)) from processes inside jails if the addresses do not belong to the jail. Originally reported by: Pieter de Boer via remko Tested by: Piotr KUCHARSKI (nospam 42.pl) [gif] PR: kern/151119 Modified: stable/7/sys/net/if_gif.c stable/7/sys/net/if_gre.c Directory Properties: stable/7/sys/ (props changed) stable/7/sys/cddl/contrib/opensolaris/ (props changed) stable/7/sys/contrib/dev/acpica/ (props changed) stable/7/sys/contrib/pf/ (props changed) Modified: stable/7/sys/net/if_gif.c ============================================================================== --- stable/7/sys/net/if_gif.c Sat Apr 9 10:19:25 2011 (r220476) +++ stable/7/sys/net/if_gif.c Sat Apr 9 10:22:18 2011 (r220477) @@ -36,6 +36,7 @@ #include <sys/param.h> #include <sys/systm.h> +#include <sys/jail.h> #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/mbuf.h> @@ -811,6 +812,12 @@ gif_ioctl(ifp, cmd, data) } if (src->sa_len > size) return EINVAL; + error = prison_if(curthread->td_ucred, src); + if (error != 0) + return (error); + error = prison_if(curthread->td_ucred, dst); + if (error != 0) + return (error); bcopy((caddr_t)src, (caddr_t)dst, src->sa_len); #ifdef INET6 if (dst->sa_family == AF_INET6) { Modified: stable/7/sys/net/if_gre.c ============================================================================== --- stable/7/sys/net/if_gre.c Sat Apr 9 10:19:25 2011 (r220476) +++ stable/7/sys/net/if_gre.c Sat Apr 9 10:22:18 2011 (r220477) @@ -53,6 +53,7 @@ #include "opt_inet6.h" #include <sys/param.h> +#include <sys/jail.h> #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/module.h> @@ -642,6 +643,9 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, si.sin_len = sizeof(struct sockaddr_in); si.sin_addr.s_addr = sc->g_src.s_addr; sa = sintosa(&si); + error = prison_if(curthread->td_ucred, sa); + if (error != 0) + break; ifr->ifr_addr = *sa; break; case GREGADDRD: @@ -650,6 +654,9 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, si.sin_len = sizeof(struct sockaddr_in); si.sin_addr.s_addr = sc->g_dst.s_addr; sa = sintosa(&si); + error = prison_if(curthread->td_ucred, sa); + if (error != 0) + break; ifr->ifr_addr = *sa; break; case SIOCSIFPHYADDR: @@ -713,8 +720,14 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, si.sin_family = AF_INET; si.sin_len = sizeof(struct sockaddr_in); si.sin_addr.s_addr = sc->g_src.s_addr; + error = prison_if(curthread->td_ucred, (struct sockaddr *)&si); + if (error != 0) + break; memcpy(&lifr->addr, &si, sizeof(si)); si.sin_addr.s_addr = sc->g_dst.s_addr; + error = prison_if(curthread->td_ucred, (struct sockaddr *)&si); + if (error != 0) + break; memcpy(&lifr->dstaddr, &si, sizeof(si)); break; case SIOCGIFPSRCADDR: @@ -729,6 +742,9 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, si.sin_family = AF_INET; si.sin_len = sizeof(struct sockaddr_in); si.sin_addr.s_addr = sc->g_src.s_addr; + error = prison_if(curthread->td_ucred, (struct sockaddr *)&si); + if (error != 0) + break; bcopy(&si, &ifr->ifr_addr, sizeof(ifr->ifr_addr)); break; case SIOCGIFPDSTADDR: @@ -743,6 +759,9 @@ gre_ioctl(struct ifnet *ifp, u_long cmd, si.sin_family = AF_INET; si.sin_len = sizeof(struct sockaddr_in); si.sin_addr.s_addr = sc->g_dst.s_addr; + error = prison_if(curthread->td_ucred, (struct sockaddr *)&si); + if (error != 0) + break; bcopy(&si, &ifr->ifr_addr, sizeof(ifr->ifr_addr)); break; case GRESKEY:
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