[PATCH 8/14] d80211: fix WEP on big endian cpus
From: Jiri Benc <hidden>
Date: 2006-09-27 15:49:48
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Michael Wu <redacted> This patch fixes the endian issues with the ICV in WEP, as pointed out by David Kimdon [off-list ref], and uses __le32 where appropriate to make things clear. Signed-off-by: Michael Wu <redacted> Signed-off-by: Jiri Benc <redacted> --- net/d80211/wep.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) adcdddba34181486f2a1b402f39d66fe05f42595
diff --git a/net/d80211/wep.c b/net/d80211/wep.c
index c3e4728..22c2e53 100644
--- a/net/d80211/wep.c
+++ b/net/d80211/wep.c@@ -120,10 +120,10 @@ void ieee80211_wep_encrypt_data(struct c size_t klen, u8 *data, size_t data_len) { struct scatterlist sg; - u32 *icv; + __le32 *icv; - icv = (u32 *)(data + data_len); - *icv = ~crc32_le(~0, data, data_len); + icv = (__le32 *)(data + data_len); + *icv = cpu_to_le32(~crc32_le(~0, data, data_len)); crypto_cipher_setkey(tfm, rc4key, klen); sg.page = virt_to_page(data);
@@ -187,7 +187,7 @@ int ieee80211_wep_decrypt_data(struct cr size_t klen, u8 *data, size_t data_len) { struct scatterlist sg; - u32 crc; + __le32 crc; crypto_cipher_setkey(tfm, rc4key, klen); sg.page = virt_to_page(data);
@@ -195,7 +195,7 @@ int ieee80211_wep_decrypt_data(struct cr sg.length = data_len + WEP_ICV_LEN; crypto_cipher_decrypt(tfm, &sg, &sg, sg.length); - crc = ~crc32_le(~0, data, data_len); + crc = cpu_to_le32(~crc32_le(~0, data, data_len)); if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0) /* ICV mismatch */ return -1;
--
1.3.0