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Bigger send/receive buf. 

(Logical change 1.66)
This commit is contained in:
osdl.net!shemminger 2004-08-13 23:54:55 +00:00
parent fa4262147d
commit 007d3a3e9f
1 changed files with 29 additions and 6 deletions
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35
lib/libnetlink.c
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@ -33,6 +33,8 @@ void rtnl_close(struct rtnl_handle *rth)
int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, int protocol)
{
int addr_len;
int sndbuf = 32768;
int rcvbuf = 32768;
memset(rth, 0, sizeof(rth));
@ -42,6 +44,16 @@ int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, int proto
return -1;
}
if (setsockopt(rth->fd,SOL_SOCKET,SO_SNDBUF,&sndbuf,sizeof(sndbuf)) < 0) {
perror("SO_SNDBUF");
return -1;
}
if (setsockopt(rth->fd,SOL_SOCKET,SO_RCVBUF,&rcvbuf,sizeof(rcvbuf)) < 0) {
perror("SO_RCVBUF");
return -1;
}
memset(&rth->local, 0, sizeof(rth->local));
rth->local.nl_family = AF_NETLINK;
rth->local.nl_groups = subscriptions;
@ -133,7 +145,7 @@ int rtnl_dump_filter(struct rtnl_handle *rth,
int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
void *arg2)
{
char buf[8192];
char buf[16384];
struct sockaddr_nl nladdr;
struct iovec iov = { buf, sizeof(buf) };
@ -220,7 +232,7 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
struct nlmsghdr *h;
struct sockaddr_nl nladdr;
struct iovec iov = { (void*)n, n->nlmsg_len };
char buf[8192];
char buf[16384];
struct msghdr msg = {
(void*)&nladdr, sizeof(nladdr),
&iov, 1,
@ -234,6 +246,7 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
nladdr.nl_groups = groups;
n->nlmsg_seq = seq = ++rtnl->seq;
if (answer == NULL)
n->nlmsg_flags |= NLM_F_ACK;
@ -244,6 +257,8 @@ int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, pid_t peer,
return -1;
}
memset(buf,0,sizeof(buf));
iov.iov_base = buf;
while (1) {
@ -459,8 +474,10 @@ int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data)
{
int len = RTA_LENGTH(4);
struct rtattr *rta;
if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen)
if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
fprintf(stderr,"addattr32: Error! max allowed bound %d exceeded\n",maxlen);
return -1;
}
rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
@ -474,8 +491,10 @@ int addattr_l(struct nlmsghdr *n, int maxlen, int type, void *data, int alen)
int len = RTA_LENGTH(alen);
struct rtattr *rta;
if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen)
if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
fprintf(stderr, "addattr_l ERROR: message exceeded bound of %d\n",maxlen);
return -1;
}
rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
@ -489,8 +508,10 @@ int rta_addattr32(struct rtattr *rta, int maxlen, int type, __u32 data)
int len = RTA_LENGTH(4);
struct rtattr *subrta;
if (RTA_ALIGN(rta->rta_len) + len > maxlen)
if (RTA_ALIGN(rta->rta_len) + len > maxlen) {
fprintf(stderr,"rta_addattr32: Error! max allowed bound %d exceeded\n",maxlen);
return -1;
}
subrta = (struct rtattr*)(((char*)rta) + RTA_ALIGN(rta->rta_len));
subrta->rta_type = type;
subrta->rta_len = len;
@ -504,8 +525,10 @@ int rta_addattr_l(struct rtattr *rta, int maxlen, int type, void *data, int alen
struct rtattr *subrta;
int len = RTA_LENGTH(alen);
if (RTA_ALIGN(rta->rta_len) + len > maxlen)
if (RTA_ALIGN(rta->rta_len) + len > maxlen) {
fprintf(stderr,"rta_addattr_l: Error! max allowed bound %d exceeded\n",maxlen);
return -1;
}
subrta = (struct rtattr*)(((char*)rta) + RTA_ALIGN(rta->rta_len));
subrta->rta_type = type;
subrta->rta_len = len;