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slirp: Fix ICMP error sending

Browse source 
Disambiguation : icmp_error is renamed into icmp_send_error, since it
doesn't manage errors, but only sends ICMP Error messages.

Signed-off-by: Yann Bordenave <meow@meowstars.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Yann Bordenave 2016-03-15 10:31:19 +01:00 committed by Samuel Thibault
parent 0d6ff71ae3
commit de40abfecf
7 changed files with 18 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
slirp/ip6_input.c
View file

@ -41,7 +41,7 @@ void ip6_input(struct mbuf *m)
/* check ip_ttl for a correct ICMP reply */
if (ip6->ip_hl == 0) {
/*icmp_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl");*/
/*icmp_send_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl");*/
goto bad;
}

12
slirp/ip_icmp.c
View file

@ -38,7 +38,7 @@
/* Be nice and tell them it's just a pseudo-ping packet */
static const char icmp_ping_msg[] = "This is a pseudo-PING packet used by Slirp to emulate ICMP ECHO-REQUEST packets.\n";
/* list of actions for icmp_error() on RX of an icmp message */
/* list of actions for icmp_send_error() on RX of an icmp message */
static const int icmp_flush[19] = {
/* ECHO REPLY (0) */ 0,
1,
@ -101,7 +101,7 @@ static int icmp_send(struct socket *so, struct mbuf *m, int hlen)
(struct sockaddr *)&addr, sizeof(addr)) == -1) {
DEBUG_MISC((dfd, "icmp_input icmp sendto tx errno = %d-%s\n",
errno, strerror(errno)));
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, 0, strerror(errno));
icmp_send_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, 0, strerror(errno));
icmp_detach(so);
}
@ -189,7 +189,7 @@ icmp_input(struct mbuf *m, int hlen)
(struct sockaddr *)&addr, sizeof(addr)) == -1) {
DEBUG_MISC((dfd,"icmp_input udp sendto tx errno = %d-%s\n",
errno,strerror(errno)));
icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno));
icmp_send_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, 0, strerror(errno));
udp_detach(so);
}
} /* if ip->ip_dst.s_addr == alias_addr.s_addr */
@ -235,7 +235,7 @@ end_error:
#define ICMP_MAXDATALEN (IP_MSS-28)
void
icmp_error(struct mbuf *msrc, u_char type, u_char code, int minsize,
icmp_send_error(struct mbuf *msrc, u_char type, u_char code, int minsize,
const char *message)
{
unsigned hlen, shlen, s_ip_len;
@ -243,7 +243,7 @@ icmp_error(struct mbuf *msrc, u_char type, u_char code, int minsize,
register struct icmp *icp;
register struct mbuf *m;
DEBUG_CALL("icmp_error");
DEBUG_CALL("icmp_send_error");
DEBUG_ARG("msrc = %p", msrc);
DEBUG_ARG("msrc_len = %d", msrc->m_len);
@ -433,7 +433,7 @@ void icmp_receive(struct socket *so)
}
DEBUG_MISC((dfd, " udp icmp rx errno = %d-%s\n", errno,
strerror(errno)));
icmp_error(so->so_m, ICMP_UNREACH, error_code, 0, strerror(errno));
icmp_send_error(so->so_m, ICMP_UNREACH, error_code, 0, strerror(errno));
} else {
icmp_reflect(so->so_m);
so->so_m = NULL; /* Don't m_free() it again! */

4
slirp/ip_icmp.h
View file

@ -156,8 +156,8 @@ struct icmp {
void icmp_init(Slirp *slirp);
void icmp_cleanup(Slirp *slirp);
void icmp_input(struct mbuf *, int);
void icmp_error(struct mbuf *msrc, u_char type, u_char code, int minsize,
const char *message);
void icmp_send_error(struct mbuf *msrc, u_char type, u_char code, int minsize,
const char *message);
void icmp_reflect(struct mbuf *);
void icmp_receive(struct socket *so);
void icmp_detach(struct socket *so);

8
slirp/ip_input.c
View file

@ -132,9 +132,9 @@ ip_input(struct mbuf *m)
m_adj(m, ip->ip_len - m->m_len);
/* check ip_ttl for a correct ICMP reply */
if(ip->ip_ttl==0) {
icmp_error(m, ICMP_TIMXCEED,ICMP_TIMXCEED_INTRANS, 0,"ttl");
goto bad;
if (ip->ip_ttl == 0) {
icmp_send_error(m, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS, 0, "ttl");
goto bad;
}
/*
@ -637,7 +637,7 @@ typedef uint32_t n_time;
}
return (0);
bad:
icmp_error(m, type, code, 0, 0);
icmp_send_error(m, type, code, 0, 0);
return (1);
}

4
slirp/socket.c
View file

@ -463,7 +463,7 @@ sorecvfrom(struct socket *so)
DEBUG_MISC((dfd," udp icmp rx errno = %d-%s\n",
errno,strerror(errno)));
icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
icmp_send_error(so->so_m, ICMP_UNREACH, code, 0, strerror(errno));
} else {
icmp_reflect(so->so_m);
so->so_m = NULL; /* Don't m_free() it again! */
@ -511,7 +511,7 @@ sorecvfrom(struct socket *so)
else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET;
DEBUG_MISC((dfd," rx error, tx icmp ICMP_UNREACH:%i\n", code));
icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
icmp_send_error(so->so_m, ICMP_UNREACH, code, 0, strerror(errno));
m_free(m);
} else {
/*

2
slirp/tcp_input.c
View file

@ -604,7 +604,7 @@ findso:
m->m_data -= sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr);
m->m_len += sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr);
*ip=save_ip;
icmp_error(m, ICMP_UNREACH,code, 0,strerror(errno));
icmp_send_error(m, ICMP_UNREACH, code, 0, strerror(errno));
}
tcp_close(tp);
m_free(m);

3
slirp/udp.c
View file

@ -209,7 +209,8 @@ udp_input(register struct mbuf *m, int iphlen)
m->m_data -= iphlen;
*ip=save_ip;
DEBUG_MISC((dfd,"udp tx errno = %d-%s\n",errno,strerror(errno)));
icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno));
icmp_send_error(m, ICMP_UNREACH, ICMP_UNREACH_NET, 0,
strerror(errno));
goto bad;
}