diff options
| -rw-r--r-- | netlink.c | 15 |
1 files changed, 9 insertions, 6 deletions
@@ -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; |