diff options
| -rw-r--r-- | target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch | 233 |
1 files changed, 231 insertions, 2 deletions
diff --git a/target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch b/target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch index 5bdefdcb4e..ae778dad28 100644 --- a/target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch +++ b/target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch @@ -279,7 +279,7 @@ #include <asm/uaccess.h> #include <linux/proc_fs.h> -@@ -763,10 +764,10 @@ static void tcp_v6_send_response(struct +@@ -763,10 +764,10 @@ static void tcp_v6_send_response(struct topt = (__be32 *)(t1 + 1); if (ts) { @@ -304,6 +304,15 @@ /* * This structure contains configuration options per IPv6 link. */ +@@ -79,7 +80,7 @@ static inline struct ipv6hdr *ipipv6_hdr + + static inline __u8 ipv6_tclass(const struct ipv6hdr *iph) + { +- return (ntohl(*(__be32 *)iph) >> 20) & 0xff; ++ return (ntohl(net_hdr_word(iph)) >> 20) & 0xff; + } + + /* --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -360,12 +360,12 @@ int ipv6_recv_error(struct sock *sk, str @@ -406,7 +415,7 @@ if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK) fl6.flowi6_mark = skb->mark; -@@ -1240,7 +1240,7 @@ static int ip6gre_header(struct sk_buff +@@ -1240,7 +1240,7 @@ static int ip6gre_header(struct sk_buff struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb_push(skb, t->hlen); __be16 *p = (__be16 *)(ipv6h+1); @@ -739,6 +748,15 @@ #define ICMPV6_ROUTER_PREF_LOW 0x3 --- a/include/net/ndisc.h +++ b/include/net/ndisc.h +@@ -76,7 +76,7 @@ struct ra_msg { + struct icmp6hdr icmph; + __be32 reachable_time; + __be32 retrans_timer; +-}; ++} __attribute__((packed, aligned(2))); + + struct rd_msg { + struct icmp6hdr icmph; @@ -142,10 +142,10 @@ static inline u32 ndisc_hashfn(const voi { const u32 *p32 = pkey; @@ -754,6 +772,19 @@ } static inline struct neighbour *__ipv6_neigh_lookup(struct neigh_table *tbl, struct net_device *dev, const void *pkey) +@@ -163,8 +163,10 @@ static inline struct neighbour *__ipv6_n + n = rcu_dereference_bh(n->next)) { + u32 *n32 = (u32 *) n->primary_key; + if (n->dev == dev && +- ((n32[0] ^ p32[0]) | (n32[1] ^ p32[1]) | +- (n32[2] ^ p32[2]) | (n32[3] ^ p32[3])) == 0) { ++ ((n32[0] ^ net_hdr_word(&p32[0])) | ++ (n32[1] ^ net_hdr_word(&p32[1])) | ++ (n32[2] ^ net_hdr_word(&p32[2])) | ++ (n32[3] ^ net_hdr_word(&p32[3]))) == 0) { + if (!atomic_inc_not_zero(&n->refcnt)) + n = NULL; + break; --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -142,7 +142,7 @@ next_knode: @@ -787,3 +818,201 @@ /* All fields must match except length and Traffic Class. */ if (nlen != skb_network_header_len(p) || +--- a/include/net/addrconf.h ++++ b/include/net/addrconf.h +@@ -39,7 +39,7 @@ struct prefix_info { + __be32 reserved2; + + struct in6_addr prefix; +-}; ++} __attribute__((packed, aligned(2))); + + + #include <linux/netdevice.h> +--- a/include/net/inet_ecn.h ++++ b/include/net/inet_ecn.h +@@ -115,13 +115,13 @@ static inline int IP6_ECN_set_ce(struct + { + if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph))) + return 0; +- *(__be32*)iph |= htonl(INET_ECN_CE << 20); ++ net_hdr_word(iph) |= htonl(INET_ECN_CE << 20); + return 1; + } + + static inline void IP6_ECN_clear(struct ipv6hdr *iph) + { +- *(__be32*)iph &= ~htonl(INET_ECN_MASK << 20); ++ net_hdr_word(iph) &= ~htonl(INET_ECN_MASK << 20); + } + + static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner) +--- a/include/net/ipv6.h ++++ b/include/net/ipv6.h +@@ -107,7 +107,7 @@ struct frag_hdr { + __u8 reserved; + __be16 frag_off; + __be32 identification; +-}; ++} __attribute__((packed, aligned(2))); + + #define IP6_MF 0x0001 + +@@ -386,6 +386,8 @@ static inline bool __ipv6_prefix_equal(c + unsigned int prefixlen) + { + unsigned int pdw, pbi; ++ /* Used for last <32-bit fraction of prefix */ ++ u32 pbia1, pbia2; + + /* check complete u32 in prefix */ + pdw = prefixlen >> 5; +@@ -394,7 +396,9 @@ static inline bool __ipv6_prefix_equal(c + + /* check incomplete u32 in prefix */ + pbi = prefixlen & 0x1f; +- if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi)))) ++ pbia1 = net_hdr_word(&a1[pdw]); ++ pbia2 = net_hdr_word(&a2[pdw]); ++ if (pbi && ((pbia1 ^ pbia2) & htonl((0xffffffff) << (32 - pbi)))) + return false; + + return true; +@@ -521,13 +525,13 @@ static inline void ipv6_addr_set_v4mappe + */ + static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen) + { +- const __be32 *a1 = token1, *a2 = token2; ++ const struct in6_addr *a1 = token1, *a2 = token2; + int i; + + addrlen >>= 2; + + for (i = 0; i < addrlen; i++) { +- __be32 xb = a1[i] ^ a2[i]; ++ __be32 xb = a1->s6_addr32[i] ^ a2->s6_addr32[i]; + if (xb) + return i * 32 + 31 - __fls(ntohl(xb)); + } +--- a/include/net/secure_seq.h ++++ b/include/net/secure_seq.h +@@ -2,6 +2,7 @@ + #define _NET_SECURE_SEQ + + #include <linux/types.h> ++#include <linux/in6.h> + + extern __u32 secure_ip_id(__be32 daddr); + extern __u32 secure_ipv6_id(const __be32 daddr[4]); +--- a/include/uapi/linux/in.h ++++ b/include/uapi/linux/in.h +@@ -55,7 +55,7 @@ enum { + /* Internet address. */ + struct in_addr { + __be32 s_addr; +-}; ++} __attribute__((packed, aligned(2))); + + #define IP_TOS 1 + #define IP_TTL 2 +--- a/include/uapi/linux/xfrm.h ++++ b/include/uapi/linux/xfrm.h +@@ -13,7 +13,7 @@ + typedef union { + __be32 a4; + __be32 a6[4]; +-} xfrm_address_t; ++} __attribute__((packed, aligned(2))) xfrm_address_t; + + /* Ident of a specific xfrm_state. It is used on input to lookup + * the state by (spi,daddr,ah/esp) or to store information about +--- a/net/core/secure_seq.c ++++ b/net/core/secure_seq.c +@@ -43,10 +43,11 @@ __u32 secure_tcpv6_sequence_number(const + u32 secret[MD5_MESSAGE_BYTES / 4]; + u32 hash[MD5_DIGEST_WORDS]; + u32 i; ++ const struct in6_addr *daddr6 = (struct in6_addr *) daddr; + + memcpy(hash, saddr, 16); + for (i = 0; i < 4; i++) +- secret[i] = net_secret[i] + (__force u32)daddr[i]; ++ secret[i] = net_secret[i] + (__force u32)daddr6->s6_addr32[i]; + secret[4] = net_secret[4] + + (((__force u16)sport << 16) + (__force u16)dport); + for (i = 5; i < MD5_MESSAGE_BYTES / 4; i++) +@@ -64,10 +65,11 @@ u32 secure_ipv6_port_ephemeral(const __b + u32 secret[MD5_MESSAGE_BYTES / 4]; + u32 hash[MD5_DIGEST_WORDS]; + u32 i; ++ const struct in6_addr *daddr6 = (struct in6_addr *) daddr; + + memcpy(hash, saddr, 16); + for (i = 0; i < 4; i++) +- secret[i] = net_secret[i] + (__force u32) daddr[i]; ++ secret[i] = net_secret[i] + (__force u32) daddr6->s6_addr32[i]; + secret[4] = net_secret[4] + (__force u32)dport; + for (i = 5; i < MD5_MESSAGE_BYTES / 4; i++) + secret[i] = net_secret[i]; +@@ -165,10 +167,11 @@ u64 secure_dccpv6_sequence_number(__be32 + u32 hash[MD5_DIGEST_WORDS]; + u64 seq; + u32 i; ++ const struct in6_addr *daddr6 = (struct in6_addr *) daddr; + + memcpy(hash, saddr, 16); + for (i = 0; i < 4; i++) +- secret[i] = net_secret[i] + daddr[i]; ++ secret[i] = net_secret[i] + daddr6->s6_addr32[i]; + secret[4] = net_secret[4] + + (((__force u16)sport << 16) + (__force u16)dport); + for (i = 5; i < MD5_MESSAGE_BYTES / 4; i++) +--- a/net/ipv6/ip6_fib.c ++++ b/net/ipv6/ip6_fib.c +@@ -144,7 +144,7 @@ static __inline__ __be32 addr_bit_set(co + * See include/asm-generic/bitops/le.h. + */ + return (__force __be32)(1 << ((~fn_bit ^ BITOP_BE32_SWIZZLE) & 0x1f)) & +- addr[fn_bit >> 5]; ++ net_hdr_word(&addr[fn_bit >> 5]); + } + + static __inline__ struct fib6_node * node_alloc(void) +--- a/net/netfilter/nf_conntrack_proto_tcp.c ++++ b/net/netfilter/nf_conntrack_proto_tcp.c +@@ -452,7 +452,7 @@ static void tcp_sack(const struct sk_buf + + /* Fast path for timestamp-only option */ + if (length == TCPOLEN_TSTAMP_ALIGNED +- && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24) ++ && net_hdr_word(ptr) == htonl((TCPOPT_NOP << 24) + | (TCPOPT_NOP << 16) + | (TCPOPT_TIMESTAMP << 8) + | TCPOLEN_TIMESTAMP)) +--- a/net/netfilter/xt_LOG.c ++++ b/net/netfilter/xt_LOG.c +@@ -521,9 +521,9 @@ static void dump_ipv6_packet(struct sbuf + /* Max length: 44 "LEN=65535 TC=255 HOPLIMIT=255 FLOWLBL=FFFFF " */ + sb_add(m, "LEN=%Zu TC=%u HOPLIMIT=%u FLOWLBL=%u ", + ntohs(ih->payload_len) + sizeof(struct ipv6hdr), +- (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20, ++ (ntohl(net_hdr_word(ih)) & 0x0ff00000) >> 20, + ih->hop_limit, +- (ntohl(*(__be32 *)ih) & 0x000fffff)); ++ (ntohl(net_hdr_word(ih)) & 0x000fffff)); + + fragment = 0; + ptr = ip6hoff + sizeof(struct ipv6hdr); +--- a/net/xfrm/xfrm_input.c ++++ b/net/xfrm/xfrm_input.c +@@ -77,8 +77,8 @@ int xfrm_parse_spi(struct sk_buff *skb, + if (!pskb_may_pull(skb, hlen)) + return -EINVAL; + +- *spi = *(__be32*)(skb_transport_header(skb) + offset); +- *seq = *(__be32*)(skb_transport_header(skb) + offset_seq); ++ *spi = net_hdr_word(skb_transport_header(skb) + offset); ++ *seq = net_hdr_word(skb_transport_header(skb) + offset_seq); + return 0; + } + |