driver_nl80211/wext: Share netlink operstate send function
As an initial step in sharing netlink helper functions among driver wrappers, create a new file for netlink code and move operstate send function there.
This commit is contained in:
Jouni Malinen
parent
3b31db5199
commit
e2d02c29b5
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@ -28,10 +28,11 @@
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#include "nl80211_copy.h"
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#include "common.h"
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#include "radiotap.h"
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#include "radiotap_iter.h"
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#include "eloop.h"
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#include "common/ieee802_11_defs.h"
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#include "netlink.h"
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#include "radiotap.h"
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#include "radiotap_iter.h"
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#include "driver.h"
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#ifdef CONFIG_LIBNL20
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@ -303,68 +304,6 @@ static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
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#endif /* HOSTAPD */
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static int wpa_driver_nl80211_send_oper_ifla(
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struct wpa_driver_nl80211_data *drv,
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int linkmode, int operstate)
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{
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struct {
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struct nlmsghdr hdr;
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struct ifinfomsg ifinfo;
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char opts[16];
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} req;
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struct rtattr *rta;
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static int nl_seq;
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ssize_t ret;
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os_memset(&req, 0, sizeof(req));
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req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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req.hdr.nlmsg_type = RTM_SETLINK;
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req.hdr.nlmsg_flags = NLM_F_REQUEST;
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req.hdr.nlmsg_seq = ++nl_seq;
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req.hdr.nlmsg_pid = 0;
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req.ifinfo.ifi_family = AF_UNSPEC;
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req.ifinfo.ifi_type = 0;
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req.ifinfo.ifi_index = drv->ifindex;
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req.ifinfo.ifi_flags = 0;
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req.ifinfo.ifi_change = 0;
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if (linkmode != -1) {
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rta = aliasing_hide_typecast(
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
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struct rtattr);
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rta->rta_type = IFLA_LINKMODE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = linkmode;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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if (operstate != -1) {
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rta = aliasing_hide_typecast(
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
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struct rtattr);
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rta->rta_type = IFLA_OPERSTATE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = operstate;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
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linkmode, operstate);
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ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
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if (ret < 0) {
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wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
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" %s (assume operstate is not supported)",
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strerror(errno));
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}
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return ret < 0 ? -1 : 0;
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}
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static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
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{
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struct wpa_driver_nl80211_data *drv = priv;
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@ -500,7 +439,8 @@ static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data
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if (drv->operstate == 1 &&
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(ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
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!(ifi->ifi_flags & IFF_RUNNING))
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wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
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netlink_send_oper_ifla(drv->link_event_sock, drv->ifindex,
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-1, IF_OPER_UP);
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_nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
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@ -1369,7 +1309,8 @@ wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
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if (wpa_driver_nl80211_capa(drv))
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return -1;
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wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
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netlink_send_oper_ifla(drv->link_event_sock, drv->ifindex,
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1, IF_OPER_DORMANT);
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#endif /* HOSTAPD */
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return 0;
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@ -1448,7 +1389,8 @@ static void wpa_driver_nl80211_deinit(void *priv)
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wpa_driver_nl80211_free_bss(drv);
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#endif /* HOSTAPD */
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wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
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netlink_send_oper_ifla(drv->link_event_sock, drv->ifindex,
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0, IF_OPER_UP);
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if (drv->link_event_sock >= 0) {
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eloop_unregister_read_sock(drv->link_event_sock);
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@ -3767,8 +3709,9 @@ static int wpa_driver_nl80211_set_operstate(void *priv, int state)
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wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
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__func__, drv->operstate, state, state ? "UP" : "DORMANT");
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drv->operstate = state;
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return wpa_driver_nl80211_send_oper_ifla(
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drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
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return netlink_send_oper_ifla(drv->link_event_sock, drv->ifindex,
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-1,
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state ? IF_OPER_UP : IF_OPER_DORMANT);
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}
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@ -24,12 +24,13 @@
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#include "wireless_copy.h"
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#include "common.h"
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#include "driver.h"
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#include "eloop.h"
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#include "priv_netlink.h"
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#include "driver_wext.h"
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#include "common/ieee802_11_defs.h"
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#include "common/wpa_common.h"
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#include "priv_netlink.h"
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#include "netlink.h"
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#include "driver.h"
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#include "driver_wext.h"
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static int wpa_driver_wext_flush_pmkid(void *priv);
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@ -39,66 +40,6 @@ static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv);
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static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg);
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static int wpa_driver_wext_send_oper_ifla(struct wpa_driver_wext_data *drv,
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int linkmode, int operstate)
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{
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struct {
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struct nlmsghdr hdr;
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struct ifinfomsg ifinfo;
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char opts[16];
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} req;
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struct rtattr *rta;
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static int nl_seq;
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ssize_t ret;
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os_memset(&req, 0, sizeof(req));
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req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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req.hdr.nlmsg_type = RTM_SETLINK;
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req.hdr.nlmsg_flags = NLM_F_REQUEST;
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req.hdr.nlmsg_seq = ++nl_seq;
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req.hdr.nlmsg_pid = 0;
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req.ifinfo.ifi_family = AF_UNSPEC;
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req.ifinfo.ifi_type = 0;
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req.ifinfo.ifi_index = drv->ifindex;
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req.ifinfo.ifi_flags = 0;
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req.ifinfo.ifi_change = 0;
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if (linkmode != -1) {
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rta = aliasing_hide_typecast(
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
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struct rtattr);
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rta->rta_type = IFLA_LINKMODE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = linkmode;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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if (operstate != -1) {
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rta = (struct rtattr *)
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
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rta->rta_type = IFLA_OPERSTATE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = operstate;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d",
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linkmode, operstate);
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ret = send(drv->event_sock, &req, req.hdr.nlmsg_len, 0);
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if (ret < 0) {
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wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: "
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"%s (assume operstate is not supported)",
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strerror(errno));
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}
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return ret < 0 ? -1 : 0;
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}
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int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
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int idx, u32 value)
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{
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@ -712,7 +653,8 @@ static void wpa_driver_wext_event_rtm_newlink(struct wpa_driver_wext_data *drv,
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if (drv->operstate == 1 &&
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(ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
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!(ifi->ifi_flags & IFF_RUNNING))
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wpa_driver_wext_send_oper_ifla(drv, -1, IF_OPER_UP);
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netlink_send_oper_ifla(drv->event_sock, drv->ifindex,
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-1, IF_OPER_UP);
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nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
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@ -1023,7 +965,8 @@ static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
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wpa_driver_wext_alternative_ifindex(drv, ifname2);
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}
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wpa_driver_wext_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
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netlink_send_oper_ifla(drv->event_sock, drv->ifindex,
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1, IF_OPER_DORMANT);
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return 0;
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}
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@ -1051,7 +994,7 @@ void wpa_driver_wext_deinit(void *priv)
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*/
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wpa_driver_wext_disconnect(drv);
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wpa_driver_wext_send_oper_ifla(priv, 0, IF_OPER_UP);
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netlink_send_oper_ifla(drv->event_sock, drv->ifindex, 0, IF_OPER_UP);
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eloop_unregister_read_sock(drv->event_sock);
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if (drv->mlme_sock >= 0)
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@ -2360,8 +2303,9 @@ int wpa_driver_wext_set_operstate(void *priv, int state)
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wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
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__func__, drv->operstate, state, state ? "UP" : "DORMANT");
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drv->operstate = state;
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return wpa_driver_wext_send_oper_ifla(
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drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
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return netlink_send_oper_ifla(drv->event_sock, drv->ifindex,
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-1,
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state ? IF_OPER_UP : IF_OPER_DORMANT);
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}
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@ -25,6 +25,7 @@ DRV_OBJS += ../src/drivers/driver_nl80211.o
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DRV_OBJS += ../src/utils/radiotap.o
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NEED_SME=y
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NEED_AP_MLME=y
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NEED_NETLINK=y
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DRV_LIBS += -lnl
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ifdef CONFIG_LIBNL20
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@ -67,6 +68,7 @@ endif
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ifdef CONFIG_DRIVER_WEXT
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DRV_WPA_CFLAGS += -DCONFIG_DRIVER_WEXT
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CONFIG_WIRELESS_EXTENSION=y
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NEED_NETLINK=y
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endif
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ifdef CONFIG_DRIVER_HERMES
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@ -148,6 +150,10 @@ DRV_WPA_CFLAGS += -DCONFIG_WIRELESS_EXTENSION
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DRV_WPA_OBJS += ../src/drivers/driver_wext.o
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endif
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ifdef NEED_NETLINK
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DRV_OBJS += ../src/drivers/netlink.o
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endif
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##### COMMON VARS
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DRV_BOTH_CFLAGS := $(DRV_CFLAGS) $(DRV_WPA_CFLAGS) $(DRV_AP_CFLAGS)
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DRV_WPA_CFLAGS += $(DRV_CFLAGS)
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79
src/drivers/netlink.c
Normal file
79
src/drivers/netlink.c
Normal file
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@ -0,0 +1,79 @@
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/*
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* Netlink helper functions for driver wrappers
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* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "priv_netlink.h"
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#include "netlink.h"
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int netlink_send_oper_ifla(int sock, int ifindex, int linkmode, int operstate)
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{
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struct {
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struct nlmsghdr hdr;
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struct ifinfomsg ifinfo;
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char opts[16];
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} req;
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struct rtattr *rta;
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static int nl_seq;
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ssize_t ret;
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os_memset(&req, 0, sizeof(req));
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req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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req.hdr.nlmsg_type = RTM_SETLINK;
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req.hdr.nlmsg_flags = NLM_F_REQUEST;
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req.hdr.nlmsg_seq = ++nl_seq;
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req.hdr.nlmsg_pid = 0;
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req.ifinfo.ifi_family = AF_UNSPEC;
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req.ifinfo.ifi_type = 0;
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req.ifinfo.ifi_index = ifindex;
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req.ifinfo.ifi_flags = 0;
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req.ifinfo.ifi_change = 0;
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if (linkmode != -1) {
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rta = aliasing_hide_typecast(
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
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struct rtattr);
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rta->rta_type = IFLA_LINKMODE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = linkmode;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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if (operstate != -1) {
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rta = aliasing_hide_typecast(
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((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
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struct rtattr);
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rta->rta_type = IFLA_OPERSTATE;
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rta->rta_len = RTA_LENGTH(sizeof(char));
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*((char *) RTA_DATA(rta)) = operstate;
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req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
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RTA_LENGTH(sizeof(char));
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}
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wpa_printf(MSG_DEBUG, "netlink: Operstate: linkmode=%d, operstate=%d",
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linkmode, operstate);
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ret = send(sock, &req, req.hdr.nlmsg_len, 0);
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if (ret < 0) {
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wpa_printf(MSG_DEBUG, "netlink: Sending operstate IFLA "
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"failed: %s (assume operstate is not supported)",
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strerror(errno));
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}
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return ret < 0 ? -1 : 0;
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}
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20
src/drivers/netlink.h
Normal file
20
src/drivers/netlink.h
Normal file
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@ -0,0 +1,20 @@
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/*
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* Netlink helper functions for driver wrappers
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* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef NETLINK_H
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#define NETLINK_H
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int netlink_send_oper_ifla(int sock, int ifindex, int linkmode, int operstate);
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#endif /* NETLINK_H */
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