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[PATCH] ieee80211: Renamed ieee80211_hdr to ieee80211_hdr_3addr
tree e9c18b2c8e5ad446a4d213243c2dcf9fd1652a7b parent 4e97ad6ae7084a4f741e94e76c41c68bc7c5a76a author James Ketrenos <jketreno@linux.intel.com> 1124444315 -0500 committer James Ketrenos <jketreno@linux.intel.com> 1127312922 -0500 Renamed ieee80211_hdr to ieee80211_hdr_3addr and modified ieee80211_hdr to just contain the frame_ctrl and duration_id. Changed uses of ieee80211_hdr to ieee80211_hdr_4addr or ieee80211_hdr_3addr based on what was expected for that portion of code. NOTE: This requires changes to ipw2100, ipw2200, hostap, and atmel drivers. Signed-off-by: James Ketrenos <jketreno@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
James Ketrenos
Jeff Garzik
parent
e0d369d1d9
commit
ee34af37c0
@ -33,33 +33,13 @@
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represents the 2304 bytes of real data, plus a possible 8 bytes of
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WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
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#define IEEE80211_HLEN 30
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#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
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struct ieee80211_hdr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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__le16 seq_ctl;
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u8 addr4[ETH_ALEN];
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} __attribute__ ((packed));
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struct ieee80211_hdr_3addr {
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__le16 frame_ctl;
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__le16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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__le16 seq_ctl;
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} __attribute__ ((packed));
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#define IEEE80211_1ADDR_LEN 10
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#define IEEE80211_2ADDR_LEN 16
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#define IEEE80211_3ADDR_LEN 24
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#define IEEE80211_4ADDR_LEN 30
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#define IEEE80211_FCS_LEN 4
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#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
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#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
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#define MIN_FRAG_THRESHOLD 256U
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#define MAX_FRAG_THRESHOLD 2346U
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@ -515,6 +495,51 @@ enum ieee80211_mfie {
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MFIE_TYPE_GENERIC = 221,
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};
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/* Minimal header; can be used for passing 802.11 frames with sufficient
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* information to determine what type of underlying data type is actually
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* stored in the data. */
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struct ieee80211_hdr {
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u16 frame_ctl;
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u16 duration_id;
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u8 payload[0];
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} __attribute__ ((packed));
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struct ieee80211_hdr_1addr {
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u16 frame_ctl;
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u16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 payload[0];
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} __attribute__ ((packed));
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struct ieee80211_hdr_2addr {
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u16 frame_ctl;
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u16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 payload[0];
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} __attribute__ ((packed));
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struct ieee80211_hdr_3addr {
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u16 frame_ctl;
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u16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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u16 seq_ctl;
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u8 payload[0];
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} __attribute__ ((packed));
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struct ieee80211_hdr_4addr {
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u16 frame_ctl;
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u16 duration_id;
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u8 addr1[ETH_ALEN];
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u8 addr2[ETH_ALEN];
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u8 addr3[ETH_ALEN];
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u16 seq_ctl;
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u8 addr4[ETH_ALEN];
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u8 payload[0];
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} __attribute__ ((packed));
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struct ieee80211_info_element {
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u8 id;
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u8 len;
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@ -538,7 +563,7 @@ struct ieee80211_info_element {
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u16 status;
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*/
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struct ieee80211_authentication {
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struct ieee80211_auth {
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struct ieee80211_hdr_3addr header;
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__le16 algorithm;
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__le16 transaction;
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@ -546,6 +571,17 @@ struct ieee80211_authentication {
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_disassoc {
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struct ieee80211_hdr_3addr header;
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u16 reason_code;
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_probe_request {
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struct ieee80211_hdr_3addr header;
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_probe_response {
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struct ieee80211_hdr_3addr header;
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u32 time_stamp[2];
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@ -554,14 +590,25 @@ struct ieee80211_probe_response {
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_assoc_request_frame {
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/* Alias beacon for probe_response */
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#define ieee80211_beacon ieee80211_probe_response
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struct ieee80211_assoc_request {
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struct ieee80211_hdr_3addr header;
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u16 capability;
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u16 listen_interval;
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_reassoc_request {
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struct ieee80211_hdr_3addr header;
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__le16 capability;
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__le16 listen_interval;
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u8 current_ap[ETH_ALEN];
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struct ieee80211_info_element info_element[0];
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} __attribute__ ((packed));
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struct ieee80211_assoc_response_frame {
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struct ieee80211_assoc_response {
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struct ieee80211_hdr_3addr header;
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__le16 capability;
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__le16 status;
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@ -572,7 +619,8 @@ struct ieee80211_assoc_response_frame {
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struct ieee80211_txb {
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u8 nr_frags;
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u8 encrypted;
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u16 reserved;
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u8 rts_included;
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u8 reserved;
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u16 frag_size;
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u16 payload_size;
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struct sk_buff *fragments[0];
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@ -803,6 +851,21 @@ extern inline int ieee80211_get_hdrlen(u16 fc)
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return hdrlen;
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}
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extern inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
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{
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switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
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case IEEE80211_1ADDR_LEN:
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return ((struct ieee80211_hdr_1addr *)hdr)->payload;
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case IEEE80211_2ADDR_LEN:
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return ((struct ieee80211_hdr_2addr *)hdr)->payload;
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case IEEE80211_3ADDR_LEN:
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return ((struct ieee80211_hdr_3addr *)hdr)->payload;
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case IEEE80211_4ADDR_LEN:
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return ((struct ieee80211_hdr_4addr *)hdr)->payload;
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}
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}
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/* ieee80211.c */
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extern void free_ieee80211(struct net_device *dev);
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extern struct net_device *alloc_ieee80211(int sizeof_priv);
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@ -817,7 +880,7 @@ extern void ieee80211_txb_free(struct ieee80211_txb *);
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extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
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struct ieee80211_rx_stats *rx_stats);
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extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
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struct ieee80211_hdr *header,
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struct ieee80211_hdr_4addr *header,
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struct ieee80211_rx_stats *stats);
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/* ieee80211_wx.c */
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@ -119,7 +119,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len)
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}
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static void ccmp_init_blocks(struct crypto_tfm *tfm,
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struct ieee80211_hdr *hdr,
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struct ieee80211_hdr_4addr *hdr,
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u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
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{
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u8 *pos, qc = 0;
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@ -196,7 +196,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
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struct ieee80211_ccmp_data *key = priv;
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int data_len, i, blocks, last, len;
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u8 *pos, *mic;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_4addr *hdr;
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u8 *b0 = key->tx_b0;
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u8 *b = key->tx_b;
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u8 *e = key->tx_e;
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@ -229,7 +229,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
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*pos++ = key->tx_pn[1];
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*pos++ = key->tx_pn[0];
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_4addr *)skb->data;
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ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
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blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
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@ -258,7 +258,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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{
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struct ieee80211_ccmp_data *key = priv;
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u8 keyidx, *pos;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_4addr *hdr;
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u8 *b0 = key->rx_b0;
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u8 *b = key->rx_b;
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u8 *a = key->rx_a;
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@ -272,7 +272,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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return -1;
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}
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_4addr *)skb->data;
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pos = skb->data + hdr_len;
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keyidx = pos[3];
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if (!(keyidx & (1 << 5))) {
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@ -265,11 +265,11 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
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struct ieee80211_tkip_data *tkey = priv;
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int len;
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u8 rc4key[16], *pos, *icv;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_4addr *hdr;
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u32 crc;
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struct scatterlist sg;
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_4addr *)skb->data;
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if (tkey->ieee->tkip_countermeasures) {
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if (net_ratelimit()) {
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@ -334,13 +334,13 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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u8 keyidx, *pos;
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u32 iv32;
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u16 iv16;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_4addr *hdr;
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u8 icv[4];
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u32 crc;
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struct scatterlist sg;
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int plen;
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_4addr *)skb->data;
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if (tkey->ieee->tkip_countermeasures) {
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if (net_ratelimit()) {
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@ -466,9 +466,9 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr,
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static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
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{
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struct ieee80211_hdr *hdr11;
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struct ieee80211_hdr_4addr *hdr11;
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hdr11 = (struct ieee80211_hdr *)skb->data;
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hdr11 = (struct ieee80211_hdr_4addr *)skb->data;
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switch (le16_to_cpu(hdr11->frame_ctl) &
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(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
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case IEEE80211_FCTL_TODS:
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@ -517,7 +517,8 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len,
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#if WIRELESS_EXT >= 18
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static void ieee80211_michael_mic_failure(struct net_device *dev,
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struct ieee80211_hdr *hdr, int keyidx)
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struct ieee80211_hdr_4addr *hdr,
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int keyidx)
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{
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union iwreq_data wrqu;
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struct iw_michaelmicfailure ev;
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@ -537,7 +538,8 @@ static void ieee80211_michael_mic_failure(struct net_device *dev,
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}
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#elif WIRELESS_EXT >= 15
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static void ieee80211_michael_mic_failure(struct net_device *dev,
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struct ieee80211_hdr *hdr, int keyidx)
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struct ieee80211_hdr_4addr *hdr,
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int keyidx)
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{
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union iwreq_data wrqu;
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char buf[128];
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@ -551,9 +553,8 @@ static void ieee80211_michael_mic_failure(struct net_device *dev,
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wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
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}
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#else /* WIRELESS_EXT >= 15 */
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static inline void ieee80211_michael_mic_failure(struct net_device *dev,
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struct ieee80211_hdr *hdr,
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int keyidx)
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static inline void ieee80211_michael_mic_failure(struct net_device *dev, struct ieee80211_hdr_4addr
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*hdr, int keyidx)
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{
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}
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#endif /* WIRELESS_EXT >= 15 */
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@ -572,8 +573,8 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
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skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
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return -1;
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if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
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struct ieee80211_hdr *hdr;
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hdr = (struct ieee80211_hdr *)skb->data;
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struct ieee80211_hdr_4addr *hdr;
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hdr = (struct ieee80211_hdr_4addr *)skb->data;
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printk(KERN_DEBUG "%s: Michael MIC verification failed for "
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"MSDU from " MAC_FMT " keyidx=%d\n",
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skb->dev ? skb->dev->name : "N/A", MAC_ARG(hdr->addr2),
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@ -87,7 +87,7 @@ static struct ieee80211_frag_entry *ieee80211_frag_cache_find(struct
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/* Called only as a tasklet (software IRQ) */
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static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
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struct ieee80211_hdr *hdr)
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struct ieee80211_hdr_4addr *hdr)
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{
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struct sk_buff *skb = NULL;
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u16 sc;
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@ -101,7 +101,7 @@ static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
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if (frag == 0) {
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/* Reserve enough space to fit maximum frame length */
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skb = dev_alloc_skb(ieee->dev->mtu +
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sizeof(struct ieee80211_hdr) +
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sizeof(struct ieee80211_hdr_4addr) +
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8 /* LLC */ +
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2 /* alignment */ +
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8 /* WEP */ + ETH_ALEN /* WDS */ );
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@ -138,7 +138,7 @@ static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee,
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/* Called only as a tasklet (software IRQ) */
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static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
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struct ieee80211_hdr *hdr)
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struct ieee80211_hdr_4addr *hdr)
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{
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u16 sc;
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unsigned int seq;
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@ -176,7 +176,7 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
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ieee->dev->name);
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return 0;
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/*
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hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr *)
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hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr_4addr *)
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skb->data);*/
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}
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@ -232,13 +232,13 @@ static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
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{
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struct net_device *dev = ieee->dev;
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u16 fc, ethertype;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_3addr *hdr;
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u8 *pos;
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if (skb->len < 24)
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return 0;
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_3addr *)skb->data;
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fc = le16_to_cpu(hdr->frame_ctl);
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/* check that the frame is unicast frame to us */
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@ -271,13 +271,13 @@ static inline int
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ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
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struct ieee80211_crypt_data *crypt)
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{
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_3addr *hdr;
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int res, hdrlen;
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if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL)
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return 0;
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_3addr *)skb->data;
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hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
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atomic_inc(&crypt->refcnt);
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@ -303,13 +303,13 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
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struct sk_buff *skb, int keyidx,
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struct ieee80211_crypt_data *crypt)
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{
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_3addr *hdr;
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int res, hdrlen;
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if (crypt == NULL || crypt->ops->decrypt_msdu == NULL)
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return 0;
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hdr = (struct ieee80211_hdr *)skb->data;
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hdr = (struct ieee80211_hdr_3addr *)skb->data;
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hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
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atomic_inc(&crypt->refcnt);
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@ -332,7 +332,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
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struct ieee80211_rx_stats *rx_stats)
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{
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struct net_device *dev = ieee->dev;
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struct ieee80211_hdr *hdr;
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struct ieee80211_hdr_4addr *hdr;
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size_t hdrlen;
|
||||
u16 fc, type, stype, sc;
|
||||
struct net_device_stats *stats;
|
||||
@ -352,7 +352,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
||||
struct ieee80211_crypt_data *crypt = NULL;
|
||||
int keyidx = 0;
|
||||
|
||||
hdr = (struct ieee80211_hdr *)skb->data;
|
||||
hdr = (struct ieee80211_hdr_4addr *)skb->data;
|
||||
stats = &ieee->stats;
|
||||
|
||||
if (skb->len < 10) {
|
||||
@ -552,7 +552,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
||||
(keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
|
||||
goto rx_dropped;
|
||||
|
||||
hdr = (struct ieee80211_hdr *)skb->data;
|
||||
hdr = (struct ieee80211_hdr_4addr *)skb->data;
|
||||
|
||||
/* skb: hdr + (possibly fragmented) plaintext payload */
|
||||
// PR: FIXME: hostap has additional conditions in the "if" below:
|
||||
@ -606,7 +606,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
||||
/* this was the last fragment and the frame will be
|
||||
* delivered, so remove skb from fragment cache */
|
||||
skb = frag_skb;
|
||||
hdr = (struct ieee80211_hdr *)skb->data;
|
||||
hdr = (struct ieee80211_hdr_4addr *)skb->data;
|
||||
ieee80211_frag_cache_invalidate(ieee, hdr);
|
||||
}
|
||||
|
||||
@ -616,7 +616,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
||||
ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
|
||||
goto rx_dropped;
|
||||
|
||||
hdr = (struct ieee80211_hdr *)skb->data;
|
||||
hdr = (struct ieee80211_hdr_4addr *)skb->data;
|
||||
if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) {
|
||||
if ( /*ieee->ieee802_1x && */
|
||||
ieee80211_is_eapol_frame(ieee, skb)) {
|
||||
@ -1148,7 +1148,7 @@ static inline void ieee80211_process_probe_response(struct ieee80211_device
|
||||
}
|
||||
|
||||
void ieee80211_rx_mgt(struct ieee80211_device *ieee,
|
||||
struct ieee80211_hdr *header,
|
||||
struct ieee80211_hdr_4addr *header,
|
||||
struct ieee80211_rx_stats *stats)
|
||||
{
|
||||
switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) {
|
||||
|
||||
@ -227,14 +227,14 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
|
||||
{
|
||||
struct ieee80211_device *ieee = netdev_priv(dev);
|
||||
struct ieee80211_txb *txb = NULL;
|
||||
struct ieee80211_hdr *frag_hdr;
|
||||
struct ieee80211_hdr_3addr *frag_hdr;
|
||||
int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size;
|
||||
unsigned long flags;
|
||||
struct net_device_stats *stats = &ieee->stats;
|
||||
int ether_type, encrypt, host_encrypt;
|
||||
int bytes, fc, hdr_len;
|
||||
struct sk_buff *skb_frag;
|
||||
struct ieee80211_hdr header = { /* Ensure zero initialized */
|
||||
struct ieee80211_hdr_3addr header = { /* Ensure zero initialized */
|
||||
.duration_id = 0,
|
||||
.seq_ctl = 0
|
||||
};
|
||||
@ -352,7 +352,8 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
|
||||
if (host_encrypt)
|
||||
skb_reserve(skb_frag, crypt->ops->extra_prefix_len);
|
||||
|
||||
frag_hdr = (struct ieee80211_hdr *)skb_put(skb_frag, hdr_len);
|
||||
frag_hdr =
|
||||
(struct ieee80211_hdr_3addr *)skb_put(skb_frag, hdr_len);
|
||||
memcpy(frag_hdr, &header, hdr_len);
|
||||
|
||||
/* If this is not the last fragment, then add the MOREFRAGS
|
||||
|
||||
Loading…
Reference in New Issue
Block a user