bsd: Use correct size for routing socket
The buffer size for routing socket is fixed to 2048. This patch fix it to obtain the size from OS. This patch worked on x86 platform with NetBSD 5.0.2.
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28878f8b0e
1 changed files with 57 additions and 12 deletions
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@ -15,6 +15,7 @@
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#include "includes.h"
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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#include "common.h"
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#include "driver.h"
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@ -569,6 +570,21 @@ bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
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return 0;
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}
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static int
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rtbuf_len(void)
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{
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size_t len;
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int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET6, NET_RT_DUMP, 0};
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if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
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wpa_printf(MSG_ERROR, "%s failed: %s\n", __func__,
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strerror(errno));
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return -1;
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}
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return len;
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}
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#ifdef HOSTAPD
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@ -691,26 +707,39 @@ static void
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bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
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{
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struct bsd_driver_data *drv = ctx;
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char buf[2048] __attribute__ ((aligned (4)));
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char *buf;
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struct if_announcemsghdr *ifan;
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struct rt_msghdr *rtm;
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struct ieee80211_michael_event *mic;
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struct ieee80211_join_event *join;
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struct ieee80211_leave_event *leave;
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int n;
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int n, len;
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union wpa_event_data data;
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n = read(sock, buf, sizeof(buf));
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len = rtbuf_len();
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if (len < 0)
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return;
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buf = os_malloc(len);
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if (buf == NULL) {
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wpa_printf(MSG_ERROR, "%s os_malloc() failed\n", __func__);
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return;
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}
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n = read(sock, buf, len);
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if (n < 0) {
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if (errno != EINTR && errno != EAGAIN)
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perror("read(PF_ROUTE)");
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wpa_printf(MSG_ERROR, "%s read() failed: %s\n",
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__func__, strerror(errno));
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os_free(buf);
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return;
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}
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rtm = (struct rt_msghdr *) buf;
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if (rtm->rtm_version != RTM_VERSION) {
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wpa_printf(MSG_DEBUG, "Routing message version %d not "
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"understood\n", rtm->rtm_version);
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wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
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rtm->rtm_version);
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os_free(buf);
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return;
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}
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ifan = (struct if_announcemsghdr *) rtm;
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@ -751,6 +780,7 @@ bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
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}
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break;
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}
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os_free(buf);
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}
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static void
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@ -1115,7 +1145,7 @@ static void
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wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
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{
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struct bsd_driver_data *drv = sock_ctx;
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char buf[2048] __attribute__ ((aligned (4)));
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char *buf;
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struct if_announcemsghdr *ifan;
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struct if_msghdr *ifm;
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struct rt_msghdr *rtm;
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@ -1123,19 +1153,32 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
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struct ieee80211_michael_event *mic;
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struct ieee80211_leave_event *leave;
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struct ieee80211_join_event *join;
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int n;
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int n, len;
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n = read(sock, buf, sizeof(buf));
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len = rtbuf_len();
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if (len < 0)
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return;
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buf = os_malloc(len);
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if (buf == NULL) {
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wpa_printf(MSG_ERROR, "%s os_malloc() failed\n", __func__);
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return;
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}
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n = read(sock, buf, len);
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if (n < 0) {
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if (errno != EINTR && errno != EAGAIN)
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perror("read(PF_ROUTE)");
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wpa_printf(MSG_ERROR, "%s read() failed: %s\n",
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__func__, strerror(errno));
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os_free(buf);
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return;
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}
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rtm = (struct rt_msghdr *) buf;
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if (rtm->rtm_version != RTM_VERSION) {
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wpa_printf(MSG_DEBUG, "Routing message version %d not "
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"understood\n", rtm->rtm_version);
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wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
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rtm->rtm_version);
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os_free(buf);
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return;
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}
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os_memset(&event, 0, sizeof(event));
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@ -1150,6 +1193,7 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
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case IFAN_DEPARTURE:
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event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
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default:
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os_free(buf);
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return;
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}
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wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
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@ -1222,6 +1266,7 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
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}
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break;
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}
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os_free(buf);
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}
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static void
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