kernel: fix porting mistakes on the 3.6+ SIP NAT patch causing crashes

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34657 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic/patches-3.6/604-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-3.6/604-netfilter_cisco_794x_iphone.patch
index be40370..418a645 100644 (file)
--- a/target/linux/generic/patches-3.6/604-netfilter_cisco_794x_iphone.patch
+++ b/target/linux/generic/patches-3.6/604-netfilter_cisco_794x_iphone.patch
@@ -18,27 +18,20 @@
  enum sip_expectation_classes {
 --- a/net/ipv4/netfilter/nf_nat_sip.c
 +++ b/net/ipv4/netfilter/nf_nat_sip.c
-@@ -73,11 +73,14 @@ static int map_addr(struct sk_buff *skb,
+@@ -73,6 +73,7 @@ static int map_addr(struct sk_buff *skb,
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_ct_sip_master *ct_sip_info;
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
        unsigned int buflen;
        __be32 newaddr;
-       __be16 newport;
- 
-+      ct_sip_info = nfct_help_data(ct->master);
-+
-       if (ct->tuplehash[dir].tuple.src.u3.ip == addr->ip &&
-           ct->tuplehash[dir].tuple.src.u.udp.port == port) {
-               newaddr = ct->tuplehash[!dir].tuple.dst.u3.ip;
 @@ -85,7 +88,8 @@ static int map_addr(struct sk_buff *skb,
        } else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip &&
                   ct->tuplehash[dir].tuple.dst.u.udp.port == port) {
                newaddr = ct->tuplehash[!dir].tuple.src.u3.ip;
 -              newport = ct->tuplehash[!dir].tuple.src.u.udp.port;
-+              newport = ct_sip_info->forced_dport ? :
++              newport = ct_sip_info->forced_dport ? ct_sip_info->forced_dport :
 +                        ct->tuplehash[!dir].tuple.src.u.udp.port;
        } else
                return 1;
@@ -47,16 +40,14 @@
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        unsigned int coff, matchoff, matchlen;
        enum sip_header_types hdr;
        union nf_inet_addr addr;
-@@ -230,6 +235,22 @@ next:
+@@ -230,6 +235,20 @@ next:
            !map_sip_addr(skb, dataoff, dptr, datalen, SIP_HDR_TO))
                return NF_DROP;
  
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
-+
 +      /* Mangle destination port for Cisco phones, then fix up checksums */
 +      if (dir == IP_CT_DIR_REPLY && ct_sip_info->forced_dport) {
 +              struct udphdr *uh;
@@ -74,27 +65,24 @@
        return NF_ACCEPT;
  }
  
-@@ -281,10 +302,13 @@ static unsigned int ip_nat_sip_expect(st
+@@ -281,8 +302,10 @@ static unsigned int ip_nat_sip_expect(st
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        __be32 newip;
        u_int16_t port;
 +      __be16 srcport;
        char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
        unsigned int buflen;
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
  
-       /* Connection will come from reply */
-       if (ct->tuplehash[dir].tuple.src.u3.ip == ct->tuplehash[!dir].tuple.dst.u3.ip)
 @@ -295,8 +319,9 @@ static unsigned int ip_nat_sip_expect(st
        /* If the signalling port matches the connection's source port in the
         * original direction, try to use the destination port in the opposite
         * direction. */
 -      if (exp->tuple.dst.u.udp.port ==
 -          ct->tuplehash[dir].tuple.src.u.udp.port)
-+      srcport = ct_sip_info->forced_dport ? :
++      srcport = ct_sip_info->forced_dport ? ct_sip_info->forced_dport :
 +                ct->tuplehash[dir].tuple.src.u.udp.port;
 +      if (exp->tuple.dst.u.udp.port == srcport)
                port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port);
@@ -102,17 +90,16 @@
                port = ntohs(exp->tuple.dst.u.udp.port);
 --- a/net/netfilter/nf_conntrack_sip.c
 +++ b/net/netfilter/nf_conntrack_sip.c
-@@ -1416,8 +1416,26 @@ static int process_sip_request(struct sk
+@@ -1416,8 +1416,25 @@ static int process_sip_request(struct sk
  {
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
 +      enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
        unsigned int matchoff, matchlen;
        unsigned int cseq, i;
 +      union nf_inet_addr addr;
 +      __be16 port;
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
 +
 +      /* Many Cisco IP phones use a high source port for SIP requests, but
 +       * listen for the response on port 5060.  If we are the local

diff --git a/target/linux/generic/patches-3.7/604-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-3.7/604-netfilter_cisco_794x_iphone.patch
index e24f16a..6aaf71b 100644 (file)
--- a/target/linux/generic/patches-3.7/604-netfilter_cisco_794x_iphone.patch
+++ b/target/linux/generic/patches-3.7/604-netfilter_cisco_794x_iphone.patch
@@ -18,27 +18,20 @@
  enum sip_expectation_classes {
 --- a/net/netfilter/nf_nat_sip.c
 +++ b/net/netfilter/nf_nat_sip.c
-@@ -95,11 +95,14 @@ static int map_addr(struct sk_buff *skb,
+@@ -95,6 +95,7 @@ static int map_addr(struct sk_buff *skb,
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_ct_sip_master *ct_sip_info;
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        char buffer[INET6_ADDRSTRLEN + sizeof("[]:nnnnn")];
        unsigned int buflen;
        union nf_inet_addr newaddr;
-       __be16 newport;
- 
-+      ct_sip_info = nfct_help_data(ct->master);
-+
-       if (nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3, addr) &&
-           ct->tuplehash[dir].tuple.src.u.udp.port == port) {
-               newaddr = ct->tuplehash[!dir].tuple.dst.u3;
 @@ -107,7 +110,8 @@ static int map_addr(struct sk_buff *skb,
        } else if (nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.dst.u3, addr) &&
                   ct->tuplehash[dir].tuple.dst.u.udp.port == port) {
                newaddr = ct->tuplehash[!dir].tuple.src.u3;
 -              newport = ct->tuplehash[!dir].tuple.src.u.udp.port;
-+              newport = ct_sip_info->forced_dport ? :
++              newport = ct_sip_info->forced_dport ? ct_sip_info->forced_dport :
 +                        ct->tuplehash[!dir].tuple.src.u.udp.port;
        } else
                return 1;
@@ -47,16 +40,14 @@
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        unsigned int coff, matchoff, matchlen;
        enum sip_header_types hdr;
        union nf_inet_addr addr;
-@@ -258,6 +263,22 @@ next:
+@@ -258,6 +263,20 @@ next:
            !map_sip_addr(skb, protoff, dataoff, dptr, datalen, SIP_HDR_TO))
                return NF_DROP;
  
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
-+
 +      /* Mangle destination port for Cisco phones, then fix up checksums */
 +      if (dir == IP_CT_DIR_REPLY && ct_sip_info->forced_dport) {
 +              struct udphdr *uh;
@@ -74,27 +65,24 @@
        return NF_ACCEPT;
  }
  
-@@ -311,10 +332,13 @@ static unsigned int nf_nat_sip_expect(st
+@@ -311,8 +332,10 @@ static unsigned int nf_nat_sip_expect(st
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
        enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
        union nf_inet_addr newaddr;
        u_int16_t port;
 +      __be16 srcport;
        char buffer[INET6_ADDRSTRLEN + sizeof("[]:nnnnn")];
        unsigned int buflen;
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
  
-       /* Connection will come from reply */
-       if (nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3,
 @@ -326,8 +350,9 @@ static unsigned int nf_nat_sip_expect(st
        /* If the signalling port matches the connection's source port in the
         * original direction, try to use the destination port in the opposite
         * direction. */
 -      if (exp->tuple.dst.u.udp.port ==
 -          ct->tuplehash[dir].tuple.src.u.udp.port)
-+      srcport = ct_sip_info->forced_dport ? :
++      srcport = ct_sip_info->forced_dport ? ct_sip_info->forced_dport :
 +                ct->tuplehash[dir].tuple.src.u.udp.port;
 +      if (exp->tuple.dst.u.udp.port == srcport)
                port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port);
@@ -102,17 +90,16 @@
                port = ntohs(exp->tuple.dst.u.udp.port);
 --- a/net/netfilter/nf_conntrack_sip.c
 +++ b/net/netfilter/nf_conntrack_sip.c
-@@ -1440,8 +1440,26 @@ static int process_sip_request(struct sk
+@@ -1440,8 +1440,25 @@ static int process_sip_request(struct sk
  {
        enum ip_conntrack_info ctinfo;
        struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-+      struct nf_conn_help *help = nfct_help(ct);
++      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct);
 +      enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
        unsigned int matchoff, matchlen;
        unsigned int cseq, i;
 +      union nf_inet_addr addr;
 +      __be16 port;
-+      struct nf_ct_sip_master *ct_sip_info = nfct_help_data(ct->master);
 +
 +      /* Many Cisco IP phones use a high source port for SIP requests, but
 +       * listen for the response on port 5060.  If we are the local