Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. =================================================================== RCS file: /ftp/cvs/cvsroot/src/sys/netinet/raw_ip.c,v rcsdiff: /ftp/cvs/cvsroot/src/sys/netinet/raw_ip.c,v: warning: Unknown phrases like `commitid ...;' are present. retrieving revision 1.154 retrieving revision 1.174 diff -u -p -r1.154 -r1.174 --- src/sys/netinet/raw_ip.c 2016/01/20 22:02:54 1.154 +++ src/sys/netinet/raw_ip.c 2018/04/12 07:28:10 1.174 @@ -1,4 +1,4 @@ -/* $NetBSD: raw_ip.c,v 1.154 2016/01/20 22:02:54 riastradh Exp $ */ +/* $NetBSD: raw_ip.c,v 1.174 2018/04/12 07:28:10 maxv Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -65,13 +65,13 @@ */ #include -__KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.154 2016/01/20 22:02:54 riastradh Exp $"); +__KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.174 2018/04/12 07:28:10 maxv Exp $"); #ifdef _KERNEL_OPT #include "opt_inet.h" -#include "opt_compat_netbsd.h" #include "opt_ipsec.h" #include "opt_mrouting.h" +#include "opt_net_mpsafe.h" #endif #include @@ -86,7 +86,6 @@ __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1 #include #include -#include #include #include @@ -102,11 +101,6 @@ __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1 #ifdef IPSEC #include #include -#include -#endif /* IPSEC */ - -#ifdef COMPAT_50 -#include #endif struct inpcbtable rawcbtable; @@ -149,13 +143,10 @@ rip_sbappendaddr(struct inpcb *last, str if (last->inp_flags & INP_NOHEADER) m_adj(n, hlen); if (last->inp_flags & INP_CONTROLOPTS -#ifdef SO_OTIMESTAMP - || last->inp_socket->so_options & SO_OTIMESTAMP -#endif - || last->inp_socket->so_options & SO_TIMESTAMP) + || SOOPT_TIMESTAMP(last->inp_socket->so_options)) ip_savecontrol(last, &opts, ip, n); if (sbappendaddr(&last->inp_socket->so_rcv, sa, n, opts) == 0) { - /* should notify about lost packet */ + soroverflow(last->inp_socket); m_freem(n); if (opts) m_freem(opts); @@ -208,36 +199,34 @@ rip_input(struct mbuf *m, ...) if (!in_nullhost(inp->inp_faddr) && !in_hosteq(inp->inp_faddr, ip->ip_src)) continue; - if (last == NULL) + + if (last == NULL) { ; + } #if defined(IPSEC) - /* check AH/ESP integrity. */ - else if (ipsec_used && - ipsec4_in_reject_so(m, last->inp_socket)) { - IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); - /* do not inject data to pcb */ + else if (ipsec_used && ipsec_in_reject(m, last)) { + /* do not inject data into pcb */ } -#endif /*IPSEC*/ +#endif else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, n); opts = NULL; } + last = inp; } + #if defined(IPSEC) - /* check AH/ESP integrity. */ - if (ipsec_used && last != NULL - && ipsec4_in_reject_so(m, last->inp_socket)) { + if (ipsec_used && last != NULL && ipsec_in_reject(m, last)) { m_freem(m); - IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); IP_STATDEC(IP_STAT_DELIVERED); - /* do not inject data to pcb */ + /* do not inject data into pcb */ } else -#endif /*IPSEC*/ - if (last != NULL) +#endif + if (last != NULL) { rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); - else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { + } else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { uint64_t *ips; icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, @@ -246,8 +235,10 @@ rip_input(struct mbuf *m, ...) ips[IP_STAT_NOPROTO]++; ips[IP_STAT_DELIVERED]--; IP_STAT_PUTREF(); - } else + } else { m_freem(m); + } + return; } @@ -311,15 +302,30 @@ rip_ctlinput(int cmd, const struct socka * Tack on options user may have setup with control call. */ int -rip_output(struct mbuf *m, struct inpcb *inp) +rip_output(struct mbuf *m, struct inpcb *inp, struct mbuf *control, + struct lwp *l) { struct ip *ip; struct mbuf *opts; - int flags; - - flags = - (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST - | IP_RETURNMTU; + struct ip_pktopts pktopts; + kauth_cred_t cred; + int error, flags; + + flags = (inp->inp_socket->so_options & SO_DONTROUTE) | + IP_ALLOWBROADCAST | IP_RETURNMTU; + + if (l == NULL) + cred = NULL; + else + cred = l->l_cred; + + /* Setup IP outgoing packet options */ + memset(&pktopts, 0, sizeof(pktopts)); + error = ip_setpktopts(control, &pktopts, &flags, inp, cred); + if (control != NULL) + m_freem(control); + if (error != 0) + goto release; /* * If the user handed us a complete IP packet, use it. @@ -327,25 +333,27 @@ rip_output(struct mbuf *m, struct inpcb */ if ((inp->inp_flags & INP_HDRINCL) == 0) { if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { - m_freem(m); - return (EMSGSIZE); + error = EMSGSIZE; + goto release; } M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); - if (!m) - return (ENOBUFS); + if (!m) { + error = ENOBUFS; + goto release; + } ip = mtod(m, struct ip *); ip->ip_tos = 0; ip->ip_off = htons(0); ip->ip_p = inp->inp_ip.ip_p; ip->ip_len = htons(m->m_pkthdr.len); - ip->ip_src = inp->inp_laddr; + ip->ip_src = pktopts.ippo_laddr.sin_addr; ip->ip_dst = inp->inp_faddr; ip->ip_ttl = MAXTTL; opts = inp->inp_options; } else { if (m->m_pkthdr.len > IP_MAXPACKET) { - m_freem(m); - return (EMSGSIZE); + error = EMSGSIZE; + goto release; } ip = mtod(m, struct ip *); @@ -358,15 +366,17 @@ rip_output(struct mbuf *m, struct inpcb int hlen = ip->ip_hl << 2; m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); - if (m == NULL) - return (ENOMEM); /* XXX */ + if (m == NULL) { + error = ENOMEM; /* XXX */ + goto release; + } ip = mtod(m, struct ip *); } /* XXX userland passes ip_len and ip_off in host order */ if (m->m_pkthdr.len != ip->ip_len) { - m_freem(m); - return (EINVAL); + error = EINVAL; + goto release; } HTONS(ip->ip_len); HTONS(ip->ip_off); @@ -382,8 +392,13 @@ rip_output(struct mbuf *m, struct inpcb * IP output. Note: if IP_RETURNMTU flag is set, the MTU size * will be stored in inp_errormtu. */ - return ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, - inp->inp_socket); + return ip_output(m, opts, &inp->inp_route, flags, pktopts.ippo_imo, + inp); + + release: + if (m != NULL) + m_freem(m); + return error; } /* @@ -479,7 +494,7 @@ int rip_connect_pcb(struct inpcb *inp, struct sockaddr_in *addr) { - if (IFNET_EMPTY()) + if (IFNET_READER_EMPTY()) return (EADDRNOTAVAIL); if (addr->sin_family != AF_INET) return (EAFNOSUPPORT); @@ -555,8 +570,8 @@ rip_bind(struct socket *so, struct socka struct inpcb *inp = sotoinpcb(so); struct sockaddr_in *addr = (struct sockaddr_in *)nam; int error = 0; - int s; - struct ifaddr *ia; + int s, ss; + struct ifaddr *ifa; KASSERT(solocked(so)); KASSERT(inp != NULL); @@ -566,7 +581,7 @@ rip_bind(struct socket *so, struct socka return EINVAL; s = splsoftnet(); - if (IFNET_EMPTY()) { + if (IFNET_READER_EMPTY()) { error = EADDRNOTAVAIL; goto release; } @@ -574,18 +589,20 @@ rip_bind(struct socket *so, struct socka error = EAFNOSUPPORT; goto release; } - if ((ia = ifa_ifwithaddr(sintosa(addr))) == 0 && + ss = pserialize_read_enter(); + if ((ifa = ifa_ifwithaddr(sintosa(addr))) == NULL && !in_nullhost(addr->sin_addr)) { + pserialize_read_exit(ss); error = EADDRNOTAVAIL; goto release; } - if (ia && ((struct in_ifaddr *)ia)->ia4_flags & - (IN6_IFF_NOTREADY | IN_IFF_DETACHED)) - { + if (ifa && (ifatoia(ifa))->ia4_flags & IN6_IFF_DUPLICATED) { + pserialize_read_exit(ss); error = EADDRNOTAVAIL; goto release; } + pserialize_read_exit(ss); inp->inp_laddr = addr->sin_addr; @@ -753,12 +770,6 @@ rip_send(struct socket *so, struct mbuf * Ship a packet out. The appropriate raw output * routine handles any massaging necessary. */ - if (control && control->m_len) { - m_freem(control); - m_freem(m); - return EINVAL; - } - s = splsoftnet(); if (nam) { if ((so->so_state & SS_ISCONNECTED) != 0) { @@ -766,21 +777,24 @@ rip_send(struct socket *so, struct mbuf goto die; } error = rip_connect_pcb(inp, (struct sockaddr_in *)nam); - if (error) { - die: - m_freem(m); - splx(s); - return error; - } + if (error) + goto die; } else { if ((so->so_state & SS_ISCONNECTED) == 0) { error = ENOTCONN; goto die; } } - error = rip_output(m, inp); + error = rip_output(m, inp, control, l); + m = NULL; + control = NULL; if (nam) rip_disconnect1(inp); + die: + if (m != NULL) + m_freem(m); + if (control != NULL) + m_freem(control); splx(s); return error; @@ -805,7 +819,13 @@ rip_purgeif(struct socket *so, struct if s = splsoftnet(); mutex_enter(softnet_lock); in_pcbpurgeif0(&rawcbtable, ifp); +#ifdef NET_MPSAFE + mutex_exit(softnet_lock); +#endif in_purgeif(ifp); +#ifdef NET_MPSAFE + mutex_enter(softnet_lock); +#endif in_pcbpurgeif(&rawcbtable, ifp); mutex_exit(softnet_lock); splx(s);