---
netlink.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/netlink.c b/netlink.c
index 8f785ca..0e0be4f 100644
--- a/netlink.c
+++ b/netlink.c
@@ -34,6 +34,8 @@
#include "log.h"
#include "netlink.h"
+#define NLBUFSIZ (8192 * sizeof(struct nlmsghdr)) /* See netlink(7) */
+
/* Socket in init, in target namespace, sequence (just needs to be monotonic) */
static int nl_sock = -1;
static int nl_sock_ns = -1;
@@ -105,7 +107,7 @@ fail:
static int nl_req(int ns, char *buf, const void *req, ssize_t len)
{
int s = ns ? nl_sock_ns : nl_sock, done = 0;
- char flush[BUFSIZ];
+ char flush[NLBUFSIZ];
ssize_t n;
while (!done && (n = recv(s, flush, sizeof(flush), MSG_DONTWAIT)) > 0) {
@@ -121,7 +123,8 @@ static int nl_req(int ns, char *buf, const void *req, ssize_t len)
}
}
- if ((send(s, req, len, 0) < len) || (len = recv(s, buf, BUFSIZ, 0)) < 0)
+ if ((send(s, req, len, 0) < len) ||
+ (len = recv(s, buf, NLBUFSIZ, 0)) < 0)
return -errno;
return len;
@@ -149,7 +152,7 @@ unsigned int nl_get_ext_if(sa_family_t af)
};
struct nlmsghdr *nh;
struct rtattr *rta;
- char buf[BUFSIZ];
+ char buf[NLBUFSIZ];
ssize_t n;
size_t na;
@@ -227,7 +230,7 @@ void nl_route(int ns, unsigned int ifi, sa_family_t af, void *gw)
struct nlmsghdr *nh;
struct rtattr *rta;
struct rtmsg *rtm;
- char buf[BUFSIZ];
+ char buf[NLBUFSIZ];
ssize_t n;
size_t na;
@@ -336,7 +339,7 @@ void nl_addr(int ns, unsigned int ifi, sa_family_t af,
struct ifaddrmsg *ifa;
struct nlmsghdr *nh;
struct rtattr *rta;
- char buf[BUFSIZ];
+ char buf[NLBUFSIZ];
ssize_t n;
size_t na;
@@ -446,7 +449,7 @@ void nl_link(int ns, unsigned int ifi, void *mac, int up, int mtu)
struct ifinfomsg *ifm;
struct nlmsghdr *nh;
struct rtattr *rta;
- char buf[BUFSIZ];
+ char buf[NLBUFSIZ];
ssize_t n;
size_t na;
--
2.38.4