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plugins: fix #173, increase size of netlink socket receive buffer

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg committed 2021-05-04 13:19:54 +02:00
1 parent 565820325b
commit add55cfc2a
1 file changed
+10
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plugins/netlink.c
+10
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@@ -335,6 +335,8 @@ static plugin_t plugin = {
PLUGIN_INIT(plugin_init) PLUGIN_INIT(plugin_init)
{ {
struct sockaddr_nl sa; struct sockaddr_nl sa;
socklen_t sz;
int rcvbuf;
int sd; int sd;
sd = socket(AF_NETLINK, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, NETLINK_ROUTE); sd = socket(AF_NETLINK, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, NETLINK_ROUTE);
@@ -343,6 +345,14 @@ PLUGIN_INIT(plugin_init)
return; return;
} }
rcvbuf = 320 << 10; /* default: 212992 bytes, now 425984 bytes */
if (setsockopt(sd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf)))
_pe("failed adjusting netlink socket recive buffer size");
sz = sizeof(rcvbuf);
if (!getsockopt(sd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, &sz))
_d("New size of netlink receive buffer: %d bytes", rcvbuf);
memset(&sa, 0, sizeof(sa)); memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK; sa.nl_family = AF_NETLINK;
sa.nl_groups = RTMGRP_IPV4_ROUTE | RTMGRP_LINK; // | RTMGRP_NOTIFY | RTMGRP_IPV4_IFADDR; sa.nl_groups = RTMGRP_IPV4_ROUTE | RTMGRP_LINK; // | RTMGRP_NOTIFY | RTMGRP_IPV4_IFADDR;