mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-28 18:28:23 -05:00
nl80211: Re-order functions to group AP/hostapd specific code
Get rid of separate ifdef/endif blocks for AP specific and hostapd specific code, i.e., only have one main block of code for each case.
This commit is contained in:
Jouni Malinen
parent
f7b3920c90
commit
f07ead6af9
@ -5043,72 +5043,16 @@ static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
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}
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#ifdef HOSTAPD
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static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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/* Set kernel driver on given frequency (MHz) */
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static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
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{
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int i;
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int *old;
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wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
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ifidx);
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for (i = 0; i < drv->num_if_indices; i++) {
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if (drv->if_indices[i] == 0) {
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drv->if_indices[i] = ifidx;
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return;
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}
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}
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if (drv->if_indices != drv->default_if_indices)
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old = drv->if_indices;
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else
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old = NULL;
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drv->if_indices = os_realloc(old,
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sizeof(int) * (drv->num_if_indices + 1));
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if (!drv->if_indices) {
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if (!old)
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drv->if_indices = drv->default_if_indices;
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else
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drv->if_indices = old;
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wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
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"interfaces");
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wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
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return;
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} else if (!old)
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os_memcpy(drv->if_indices, drv->default_if_indices,
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sizeof(drv->default_if_indices));
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drv->if_indices[drv->num_if_indices] = ifidx;
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drv->num_if_indices++;
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struct i802_bss *bss = priv;
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struct wpa_driver_nl80211_data *drv = bss->drv;
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return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
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freq->sec_channel_offset);
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}
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static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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{
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int i;
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for (i = 0; i < drv->num_if_indices; i++) {
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if (drv->if_indices[i] == ifidx) {
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drv->if_indices[i] = 0;
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break;
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}
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}
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}
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static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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{
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int i;
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for (i = 0; i < drv->num_if_indices; i++)
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if (drv->if_indices[i] == ifidx)
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return 1;
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return 0;
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}
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#endif /* HOSTAPD */
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#if defined(HOSTAPD) || defined(CONFIG_AP)
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static inline int min_int(int a, int b)
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@ -5196,20 +5140,6 @@ static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
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return -ENOBUFS;
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}
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#endif /* HOSTAPD || CONFIG_AP */
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/* Set kernel driver on given frequency (MHz) */
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static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
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{
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struct i802_bss *bss = priv;
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struct wpa_driver_nl80211_data *drv = bss->drv;
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return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
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freq->sec_channel_offset);
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}
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#if defined(HOSTAPD) || defined(CONFIG_AP)
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static int i802_set_rts(void *priv, int rts)
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{
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@ -5513,43 +5443,6 @@ static int i802_set_sta_vlan(void *priv, const u8 *addr,
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return ret;
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}
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#endif /* HOSTAPD || CONFIG_AP */
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#ifdef HOSTAPD
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static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
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const char *bridge_ifname)
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{
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struct i802_bss *bss = priv;
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struct wpa_driver_nl80211_data *drv = bss->drv;
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char name[IFNAMSIZ + 1];
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os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
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wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
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" aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
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if (val) {
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if (!if_nametoindex(name)) {
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if (nl80211_create_iface(drv, name,
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NL80211_IFTYPE_AP_VLAN,
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NULL, 1) < 0)
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return -1;
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if (bridge_ifname &&
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linux_br_add_if(drv->ioctl_sock, bridge_ifname,
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name) < 0)
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return -1;
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}
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linux_set_iface_flags(drv->ioctl_sock, name, 1);
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return i802_set_sta_vlan(priv, addr, name, 0);
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} else {
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i802_set_sta_vlan(priv, addr, bss->ifname, 0);
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return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
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name);
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}
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}
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#endif /* HOSTAPD */
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#if defined(HOSTAPD) || defined(CONFIG_AP)
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static int i802_set_ht_params(void *priv, const u8 *ht_capab,
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size_t ht_capab_len, const u8 *ht_oper,
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@ -5563,32 +5456,6 @@ static int i802_set_ht_params(void *priv, const u8 *ht_capab,
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return -1;
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}
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#endif /* HOSTAPD || CONFIG_AP */
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#ifdef HOSTAPD
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static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
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{
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struct wpa_driver_nl80211_data *drv = eloop_ctx;
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struct sockaddr_ll lladdr;
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unsigned char buf[3000];
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int len;
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socklen_t fromlen = sizeof(lladdr);
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len = recvfrom(sock, buf, sizeof(buf), 0,
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(struct sockaddr *)&lladdr, &fromlen);
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if (len < 0) {
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perror("recv");
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return;
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}
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if (have_ifidx(drv, lladdr.sll_ifindex))
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drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
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}
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#endif /* HOSTAPD */
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#if defined(HOSTAPD) || defined(CONFIG_AP)
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static int i802_get_inact_sec(void *priv, const u8 *addr)
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{
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@ -5653,6 +5520,120 @@ static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
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#ifdef HOSTAPD
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static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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{
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int i;
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int *old;
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wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
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ifidx);
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for (i = 0; i < drv->num_if_indices; i++) {
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if (drv->if_indices[i] == 0) {
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drv->if_indices[i] = ifidx;
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return;
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}
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}
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if (drv->if_indices != drv->default_if_indices)
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old = drv->if_indices;
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else
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old = NULL;
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drv->if_indices = os_realloc(old,
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sizeof(int) * (drv->num_if_indices + 1));
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if (!drv->if_indices) {
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if (!old)
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drv->if_indices = drv->default_if_indices;
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else
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drv->if_indices = old;
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wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
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"interfaces");
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wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
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return;
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} else if (!old)
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os_memcpy(drv->if_indices, drv->default_if_indices,
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sizeof(drv->default_if_indices));
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drv->if_indices[drv->num_if_indices] = ifidx;
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drv->num_if_indices++;
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}
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static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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{
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int i;
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for (i = 0; i < drv->num_if_indices; i++) {
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if (drv->if_indices[i] == ifidx) {
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drv->if_indices[i] = 0;
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break;
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}
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}
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}
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static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
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{
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int i;
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for (i = 0; i < drv->num_if_indices; i++)
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if (drv->if_indices[i] == ifidx)
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return 1;
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return 0;
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}
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static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
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const char *bridge_ifname)
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{
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struct i802_bss *bss = priv;
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struct wpa_driver_nl80211_data *drv = bss->drv;
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char name[IFNAMSIZ + 1];
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os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
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wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
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" aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
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if (val) {
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if (!if_nametoindex(name)) {
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if (nl80211_create_iface(drv, name,
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NL80211_IFTYPE_AP_VLAN,
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NULL, 1) < 0)
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return -1;
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if (bridge_ifname &&
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linux_br_add_if(drv->ioctl_sock, bridge_ifname,
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name) < 0)
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return -1;
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}
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linux_set_iface_flags(drv->ioctl_sock, name, 1);
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return i802_set_sta_vlan(priv, addr, name, 0);
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} else {
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i802_set_sta_vlan(priv, addr, bss->ifname, 0);
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return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
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name);
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}
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}
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static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
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{
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struct wpa_driver_nl80211_data *drv = eloop_ctx;
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struct sockaddr_ll lladdr;
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unsigned char buf[3000];
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int len;
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socklen_t fromlen = sizeof(lladdr);
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len = recvfrom(sock, buf, sizeof(buf), 0,
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(struct sockaddr *)&lladdr, &fromlen);
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if (len < 0) {
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perror("recv");
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return;
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}
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if (have_ifidx(drv, lladdr.sll_ifindex))
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drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
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}
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static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
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struct i802_bss *bss,
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const char *brname, const char *ifname)
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