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-rw-r--r--target/linux/ar71xx/patches-3.8/902-unaligned_access_hacks.patch233
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;
+ }
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 10:25:16 +0000