diff options
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 07f47a0208a..d40df30c2b1 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -645,6 +645,7 @@ void add_input_randomness(unsigned int type, unsigned int code, add_timer_randomness(&input_timer_state, (type << 4) ^ code ^ (code >> 4) ^ value); } +EXPORT_SYMBOL_GPL(add_input_randomness); void add_interrupt_randomness(int irq) { @@ -1465,8 +1466,8 @@ static __init int seqgen_init(void) late_initcall(seqgen_init); #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) -__u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr, - __u16 sport, __u16 dport) +__u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr, + __be16 sport, __be16 dport) { struct timeval tv; __u32 seq; @@ -1478,10 +1479,10 @@ __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr, */ memcpy(hash, saddr, 16); - hash[4]=(sport << 16) + dport; + hash[4]=((__force u16)sport << 16) + (__force u16)dport; memcpy(&hash[5],keyptr->secret,sizeof(__u32) * 7); - seq = twothirdsMD4Transform(daddr, hash) & HASH_MASK; + seq = twothirdsMD4Transform((const __u32 *)daddr, hash) & HASH_MASK; seq += keyptr->count; do_gettimeofday(&tv); @@ -1495,7 +1496,7 @@ EXPORT_SYMBOL(secure_tcpv6_sequence_number); /* The code below is shamelessly stolen from secure_tcp_sequence_number(). * All blames to Andrey V. Savochkin <saw@msu.ru>. */ -__u32 secure_ip_id(__u32 daddr) +__u32 secure_ip_id(__be32 daddr) { struct keydata *keyptr; __u32 hash[4]; @@ -1507,7 +1508,7 @@ __u32 secure_ip_id(__u32 daddr) * The dest ip address is placed in the starting vector, * which is then hashed with random data. */ - hash[0] = daddr; + hash[0] = (__force __u32)daddr; hash[1] = keyptr->secret[9]; hash[2] = keyptr->secret[10]; hash[3] = keyptr->secret[11]; @@ -1517,8 +1518,8 @@ __u32 secure_ip_id(__u32 daddr) #ifdef CONFIG_INET -__u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr, - __u16 sport, __u16 dport) +__u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport) { struct timeval tv; __u32 seq; @@ -1531,9 +1532,9 @@ __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr, * Note that the words are placed into the starting vector, which is * then mixed with a partial MD4 over random data. */ - hash[0]=saddr; - hash[1]=daddr; - hash[2]=(sport << 16) + dport; + hash[0]=(__force u32)saddr; + hash[1]=(__force u32)daddr; + hash[2]=((__force u16)sport << 16) + (__force u16)dport; hash[3]=keyptr->secret[11]; seq = half_md4_transform(hash, keyptr->secret) & HASH_MASK; @@ -1558,7 +1559,7 @@ __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr, EXPORT_SYMBOL(secure_tcp_sequence_number); /* Generate secure starting point for ephemeral IPV4 transport port search */ -u32 secure_ipv4_port_ephemeral(__u32 saddr, __u32 daddr, __u16 dport) +u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport) { struct keydata *keyptr = get_keyptr(); u32 hash[4]; @@ -1567,25 +1568,25 @@ u32 secure_ipv4_port_ephemeral(__u32 saddr, __u32 daddr, __u16 dport) * Pick a unique starting offset for each ephemeral port search * (saddr, daddr, dport) and 48bits of random data. */ - hash[0] = saddr; - hash[1] = daddr; - hash[2] = dport ^ keyptr->secret[10]; + hash[0] = (__force u32)saddr; + hash[1] = (__force u32)daddr; + hash[2] = (__force u32)dport ^ keyptr->secret[10]; hash[3] = keyptr->secret[11]; return half_md4_transform(hash, keyptr->secret); } #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) -u32 secure_ipv6_port_ephemeral(const __u32 *saddr, const __u32 *daddr, __u16 dport) +u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr, __be16 dport) { struct keydata *keyptr = get_keyptr(); u32 hash[12]; memcpy(hash, saddr, 16); - hash[4] = dport; + hash[4] = (__force u32)dport; memcpy(&hash[5],keyptr->secret,sizeof(__u32) * 7); - return twothirdsMD4Transform(daddr, hash); + return twothirdsMD4Transform((const __u32 *)daddr, hash); } #endif @@ -1594,17 +1595,17 @@ u32 secure_ipv6_port_ephemeral(const __u32 *saddr, const __u32 *daddr, __u16 dpo * bit's 32-47 increase every key exchange * 0-31 hash(source, dest) */ -u64 secure_dccp_sequence_number(__u32 saddr, __u32 daddr, - __u16 sport, __u16 dport) +u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport) { struct timeval tv; u64 seq; __u32 hash[4]; struct keydata *keyptr = get_keyptr(); - hash[0] = saddr; - hash[1] = daddr; - hash[2] = (sport << 16) + dport; + hash[0] = (__force u32)saddr; + hash[1] = (__force u32)daddr; + hash[2] = ((__force u16)sport << 16) + (__force u16)dport; hash[3] = keyptr->secret[11]; seq = half_md4_transform(hash, keyptr->secret); @@ -1640,7 +1641,7 @@ unsigned int get_random_int(void) * drain on it), and uses halfMD4Transform within the second. We * also mix it with jiffies and the PID: */ - return secure_ip_id(current->pid + jiffies); + return secure_ip_id((__force __be32)(current->pid + jiffies)); } /* |