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tcp_metrics: Display source-address 

This patch allows to display the source-IP.
stype will be used in the next patch that allows to remove based on the
source-IP.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
This commit is contained in:
Christoph Paasch 2014-02-06 23:15:03 +01:00 committed by Stephen Hemminger
parent 54b237a058
commit 114aa720fa
1 changed files with 28 additions and 2 deletions
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30
ip/tcp_metrics.c
View File

@ -95,8 +95,8 @@ static int process_msg(const struct sockaddr_nl *who, struct nlmsghdr *n,
struct rtattr *attrs[TCP_METRICS_ATTR_MAX + 1], *a;
int len = n->nlmsg_len;
char abuf[256];
inet_prefix daddr;
int family, i, atype, dlen = 0;
inet_prefix daddr, saddr;
int family, i, atype, stype, dlen = 0, slen = 0;
if (n->nlmsg_type != genl_family)
return -1;
@ -135,6 +135,26 @@ static int process_msg(const struct sockaddr_nl *who, struct nlmsghdr *n,
return 0;
}
a = attrs[TCP_METRICS_ATTR_SADDR_IPV4];
if (a) {
if (f.saddr.family && f.saddr.family != AF_INET)
return 0;
memcpy(&saddr.data, RTA_DATA(a), 4);
saddr.bytelen = 4;
stype = TCP_METRICS_ATTR_SADDR_IPV4;
slen = RTA_PAYLOAD(a);
} else {
a = attrs[TCP_METRICS_ATTR_SADDR_IPV6];
if (a) {
if (f.saddr.family && f.saddr.family != AF_INET6)
return 0;
memcpy(&saddr.data, RTA_DATA(a), 16);
saddr.bytelen = 16;
stype = TCP_METRICS_ATTR_SADDR_IPV6;
slen = RTA_PAYLOAD(a);
}
}
if (f.daddr.family && f.daddr.bitlen >= 0 &&
inet_addr_match(&daddr, &f.daddr, f.daddr.bitlen))
return 0;
@ -248,6 +268,12 @@ static int process_msg(const struct sockaddr_nl *who, struct nlmsghdr *n,
fprintf(fp, " fo_cookie %s", cookie);
}
if (slen) {
fprintf(fp, " source %s",
format_host(family, slen, &saddr.data, abuf,
sizeof(abuf)));
}
fprintf(fp, "\n");
fflush(fp);