- do not quit from key_sendup() even if writes to non-target
socket fails. - remove an unneeded function. - fix pfkey stat. - fix comment. Obtained from: KAME
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@ -1,4 +1,4 @@
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/* $KAME: keysock.c,v 1.25 2001/08/13 20:07:41 itojun Exp $ */
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/* $KAME: keysock.c,v 1.32 2003/08/22 05:45:08 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -154,7 +154,6 @@ key_sendup0(rp, m, promisc)
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m = m_pullup(m, sizeof(struct sadb_msg));
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if (!m) {
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pfkeystat.in_nomem++;
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m_freem(m);
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return ENOBUFS;
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}
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m->m_pkthdr.len += sizeof(*pmsg);
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@ -180,91 +179,6 @@ key_sendup0(rp, m, promisc)
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return error;
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}
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/* XXX this interface should be obsoleted. */
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int
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key_sendup(so, msg, len, target)
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struct socket *so;
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struct sadb_msg *msg;
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u_int len;
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int target; /*target of the resulting message*/
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{
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struct mbuf *m, *n, *mprev;
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int tlen;
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/* sanity check */
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if (so == 0 || msg == 0)
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panic("key_sendup: NULL pointer was passed.");
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KEYDEBUG(KEYDEBUG_KEY_DUMP,
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printf("key_sendup: \n");
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kdebug_sadb(msg));
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/*
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* we increment statistics here, just in case we have ENOBUFS
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* in this function.
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*/
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pfkeystat.in_total++;
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pfkeystat.in_bytes += len;
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pfkeystat.in_msgtype[msg->sadb_msg_type]++;
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/*
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* Get mbuf chain whenever possible (not clusters),
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* to save socket buffer. We'll be generating many SADB_ACQUIRE
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* messages to listening key sockets. If we simply allocate clusters,
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* sbappendaddr() will raise ENOBUFS due to too little sbspace().
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* sbspace() computes # of actual data bytes AND mbuf region.
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*
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* TODO: SADB_ACQUIRE filters should be implemented.
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*/
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tlen = len;
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m = mprev = NULL;
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while (tlen > 0) {
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if (tlen == len) {
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MGETHDR(n, M_DONTWAIT, MT_DATA);
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n->m_len = MHLEN;
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} else {
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MGET(n, M_DONTWAIT, MT_DATA);
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n->m_len = MLEN;
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}
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if (!n) {
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pfkeystat.in_nomem++;
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return ENOBUFS;
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}
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if (tlen >= MCLBYTES) { /*XXX better threshold? */
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MCLGET(n, M_DONTWAIT);
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if ((n->m_flags & M_EXT) == 0) {
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m_free(n);
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m_freem(m);
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pfkeystat.in_nomem++;
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return ENOBUFS;
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}
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n->m_len = MCLBYTES;
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}
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if (tlen < n->m_len)
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n->m_len = tlen;
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n->m_next = NULL;
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if (m == NULL)
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m = mprev = n;
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else {
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mprev->m_next = n;
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mprev = n;
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}
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tlen -= n->m_len;
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n = NULL;
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}
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m->m_pkthdr.len = len;
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m->m_pkthdr.rcvif = NULL;
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m_copyback(m, 0, len, (caddr_t)msg);
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/* avoid duplicated statistics */
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pfkeystat.in_total--;
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pfkeystat.in_bytes -= len;
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pfkeystat.in_msgtype[msg->sadb_msg_type]--;
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return key_sendup_mbuf(so, m, target);
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}
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/* so can be NULL if target != KEY_SENDUP_ONE */
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int
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key_sendup_mbuf(so, m, target)
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@ -350,10 +264,12 @@ key_sendup_mbuf(so, m, target)
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return ENOBUFS;
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}
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if ((error = key_sendup0(rp, n, 0)) != 0) {
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m_freem(m);
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return error;
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}
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/*
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* ignore error even if queue is full. PF_KEY does not
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* guarantee the delivery of the message.
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* this is important when target == KEY_SENDUP_ALL.
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*/
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key_sendup0(rp, n, 0);
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n = NULL;
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}
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@ -1,5 +1,5 @@
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/* $FreeBSD$ */
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/* $KAME: keysock.h,v 1.8 2000/03/27 05:11:06 sumikawa Exp $ */
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/* $KAME: keysock.h,v 1.9 2002/03/21 14:00:14 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -35,7 +35,7 @@
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/* statistics for pfkey socket */
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struct pfkeystat {
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/* kernel -> userland */
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/* userland -> kernel */
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u_quad_t out_total; /* # of total calls */
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u_quad_t out_bytes; /* total bytecount */
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u_quad_t out_msgtype[256]; /* message type histogram */
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@ -48,7 +48,7 @@ struct pfkeystat {
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u_quad_t out_invexttype; /* invalid extension type */
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u_quad_t out_invsatype; /* invalid sa type */
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u_quad_t out_invaddr; /* invalid address extension */
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/* userland -> kernel */
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/* kernel -> userland */
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u_quad_t in_total; /* # of total calls */
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u_quad_t in_bytes; /* total bytecount */
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u_quad_t in_msgtype[256]; /* message type histogram */
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@ -75,7 +75,6 @@ extern int key_output(struct mbuf *, ...);
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extern int key_usrreq(struct socket *,
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int, struct mbuf *, struct mbuf *, struct mbuf *);
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extern int key_sendup(struct socket *, struct sadb_msg *, u_int, int);
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extern int key_sendup_mbuf(struct socket *, struct mbuf *, int);
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#endif /* _KERNEL */
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