diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_conn.c | 15 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_core.c | 116 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_proto_ah_esp.c | 9 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_proto_sctp.c | 42 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_proto_tcp.c | 40 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_proto_udp.c | 41 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_xmit.c | 58 | ||||
| -rw-r--r-- | net/netfilter/xt_ipvs.c | 2 |
8 files changed, 134 insertions, 189 deletions
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index d6c1c26..30e764a 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -308,13 +308,12 @@ struct ip_vs_conn *ip_vs_conn_in_get(const struct ip_vs_conn_param *p) static int ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb, const struct ip_vs_iphdr *iph, - unsigned int proto_off, int inverse, - struct ip_vs_conn_param *p) + int inverse, struct ip_vs_conn_param *p) { __be16 _ports[2], *pptr; struct net *net = skb_net(skb); - pptr = frag_safe_skb_hp(skb, proto_off, sizeof(_ports), _ports, iph); + pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph); if (pptr == NULL) return 1; @@ -329,12 +328,11 @@ ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb, struct ip_vs_conn * ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb, - const struct ip_vs_iphdr *iph, - unsigned int proto_off, int inverse) + const struct ip_vs_iphdr *iph, int inverse) { struct ip_vs_conn_param p; - if (ip_vs_conn_fill_param_proto(af, skb, iph, proto_off, inverse, &p)) + if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p)) return NULL; return ip_vs_conn_in_get(&p); @@ -432,12 +430,11 @@ struct ip_vs_conn *ip_vs_conn_out_get(const struct ip_vs_conn_param *p) struct ip_vs_conn * ip_vs_conn_out_get_proto(int af, const struct sk_buff *skb, - const struct ip_vs_iphdr *iph, - unsigned int proto_off, int inverse) + const struct ip_vs_iphdr *iph, int inverse) { struct ip_vs_conn_param p; - if (ip_vs_conn_fill_param_proto(af, skb, iph, proto_off, inverse, &p)) + if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p)) return NULL; return ip_vs_conn_out_get(&p); diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 19b89ff..fb45640 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -222,11 +222,10 @@ ip_vs_conn_fill_param_persist(const struct ip_vs_service *svc, */ static struct ip_vs_conn * ip_vs_sched_persist(struct ip_vs_service *svc, - struct sk_buff *skb, - __be16 src_port, __be16 dst_port, int *ignored) + struct sk_buff *skb, __be16 src_port, __be16 dst_port, + int *ignored, struct ip_vs_iphdr *iph) { struct ip_vs_conn *cp = NULL; - struct ip_vs_iphdr iph; struct ip_vs_dest *dest; struct ip_vs_conn *ct; __be16 dport = 0; /* destination port to forward */ @@ -236,20 +235,18 @@ ip_vs_sched_persist(struct ip_vs_service *svc, union nf_inet_addr snet; /* source network of the client, after masking */ - ip_vs_fill_iph_skb(svc->af, skb, &iph); - /* Mask saddr with the netmask to adjust template granularity */ #ifdef CONFIG_IP_VS_IPV6 if (svc->af == AF_INET6) - ipv6_addr_prefix(&snet.in6, &iph.saddr.in6, svc->netmask); + ipv6_addr_prefix(&snet.in6, &iph->saddr.in6, svc->netmask); else #endif - snet.ip = iph.saddr.ip & svc->netmask; + snet.ip = iph->saddr.ip & svc->netmask; IP_VS_DBG_BUF(6, "p-schedule: src %s:%u dest %s:%u " "mnet %s\n", - IP_VS_DBG_ADDR(svc->af, &iph.saddr), ntohs(src_port), - IP_VS_DBG_ADDR(svc->af, &iph.daddr), ntohs(dst_port), + IP_VS_DBG_ADDR(svc->af, &iph->saddr), ntohs(src_port), + IP_VS_DBG_ADDR(svc->af, &iph->daddr), ntohs(dst_port), IP_VS_DBG_ADDR(svc->af, &snet)); /* @@ -266,8 +263,8 @@ ip_vs_sched_persist(struct ip_vs_service *svc, * is created for other persistent services. */ { - int protocol = iph.protocol; - const union nf_inet_addr *vaddr = &iph.daddr; + int protocol = iph->protocol; + const union nf_inet_addr *vaddr = &iph->daddr; __be16 vport = 0; if (dst_port == svc->port) { @@ -342,14 +339,14 @@ ip_vs_sched_persist(struct ip_vs_service *svc, dport = dest->port; flags = (svc->flags & IP_VS_SVC_F_ONEPACKET - && iph.protocol == IPPROTO_UDP)? + && iph->protocol == IPPROTO_UDP) ? IP_VS_CONN_F_ONE_PACKET : 0; /* * Create a new connection according to the template */ - ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol, &iph.saddr, - src_port, &iph.daddr, dst_port, ¶m); + ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol, &iph->saddr, + src_port, &iph->daddr, dst_port, ¶m); cp = ip_vs_conn_new(¶m, &dest->addr, dport, flags, dest, skb->mark); if (cp == NULL) { @@ -392,22 +389,20 @@ ip_vs_sched_persist(struct ip_vs_service *svc, */ struct ip_vs_conn * ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, - struct ip_vs_proto_data *pd, int *ignored) + struct ip_vs_proto_data *pd, int *ignored, + struct ip_vs_iphdr *iph) { struct ip_vs_protocol *pp = pd->pp; struct ip_vs_conn *cp = NULL; - struct ip_vs_iphdr iph; struct ip_vs_dest *dest; __be16 _ports[2], *pptr; unsigned int flags; *ignored = 1; - /* * IPv6 frags, only the first hit here. */ - ip_vs_fill_iph_skb(svc->af, skb, &iph); - pptr = frag_safe_skb_hp(skb, iph.len, sizeof(_ports), _ports, &iph); + pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph); if (pptr == NULL) return NULL; @@ -427,7 +422,7 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, * Do not schedule replies from local real server. */ if ((!skb->dev || skb->dev->flags & IFF_LOOPBACK) && - (cp = pp->conn_in_get(svc->af, skb, &iph, iph.len, 1))) { + (cp = pp->conn_in_get(svc->af, skb, iph, 1))) { IP_VS_DBG_PKT(12, svc->af, pp, skb, 0, "Not scheduling reply for existing connection"); __ip_vs_conn_put(cp); @@ -438,7 +433,8 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, * Persistent service */ if (svc->flags & IP_VS_SVC_F_PERSISTENT) - return ip_vs_sched_persist(svc, skb, pptr[0], pptr[1], ignored); + return ip_vs_sched_persist(svc, skb, pptr[0], pptr[1], ignored, + iph); *ignored = 0; @@ -460,7 +456,7 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, } flags = (svc->flags & IP_VS_SVC_F_ONEPACKET - && iph.protocol == IPPROTO_UDP)? + && iph->protocol == IPPROTO_UDP) ? IP_VS_CONN_F_ONE_PACKET : 0; /* @@ -469,9 +465,9 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, { struct ip_vs_conn_param p; - ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol, - &iph.saddr, pptr[0], &iph.daddr, pptr[1], - &p); + ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol, + &iph->saddr, pptr[0], &iph->daddr, + pptr[1], &p); cp = ip_vs_conn_new(&p, &dest->addr, dest->port ? dest->port : pptr[1], flags, dest, skb->mark); @@ -500,18 +496,16 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb, * no destination is available for a new connection. */ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, - struct ip_vs_proto_data *pd) + struct ip_vs_proto_data *pd, struct ip_vs_iphdr *iph) { __be16 _ports[2], *pptr; - struct ip_vs_iphdr iph; #ifdef CONFIG_SYSCTL struct net *net; struct netns_ipvs *ipvs; int unicast; #endif - ip_vs_fill_iph_skb(svc->af, skb, &iph); - pptr = frag_safe_skb_hp(skb, iph.len, sizeof(_ports), _ports, &iph); + pptr = frag_safe_skb_hp(skb, iph->len, sizeof(_ports), _ports, iph); if (pptr == NULL) { ip_vs_service_put(svc); return NF_DROP; @@ -522,10 +516,10 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, #ifdef CONFIG_IP_VS_IPV6 if (svc->af == AF_INET6) - unicast = ipv6_addr_type(&iph.daddr.in6) & IPV6_ADDR_UNICAST; + unicast = ipv6_addr_type(&iph->daddr.in6) & IPV6_ADDR_UNICAST; else #endif - unicast = (inet_addr_type(net, iph.daddr.ip) == RTN_UNICAST); + unicast = (inet_addr_type(net, iph->daddr.ip) == RTN_UNICAST); /* if it is fwmark-based service, the cache_bypass sysctl is up and the destination is a non-local unicast, then create @@ -535,7 +529,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, int ret; struct ip_vs_conn *cp; unsigned int flags = (svc->flags & IP_VS_SVC_F_ONEPACKET && - iph.protocol == IPPROTO_UDP)? + iph->protocol == IPPROTO_UDP) ? IP_VS_CONN_F_ONE_PACKET : 0; union nf_inet_addr daddr = { .all = { 0, 0, 0, 0 } }; @@ -545,9 +539,9 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, IP_VS_DBG(6, "%s(): create a cache_bypass entry\n", __func__); { struct ip_vs_conn_param p; - ip_vs_conn_fill_param(svc->net, svc->af, iph.protocol, - &iph.saddr, pptr[0], - &iph.daddr, pptr[1], &p); + ip_vs_conn_fill_param(svc->net, svc->af, iph->protocol, + &iph->saddr, pptr[0], + &iph->daddr, pptr[1], &p); cp = ip_vs_conn_new(&p, &daddr, 0, IP_VS_CONN_F_BYPASS | flags, NULL, skb->mark); @@ -562,7 +556,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb, ip_vs_set_state(cp, IP_VS_DIR_INPUT, skb, pd); /* transmit the first SYN packet */ - ret = cp->packet_xmit(skb, cp, pd->pp); + ret = cp->packet_xmit(skb, cp, pd->pp, iph); /* do not touch skb anymore */ atomic_inc(&cp->in_pkts); @@ -908,7 +902,7 @@ static int ip_vs_out_icmp(struct sk_buff *skb, int *related, ip_vs_fill_ip4hdr(cih, &ciph); ciph.len += offset; /* The embedded headers contain source and dest in reverse order */ - cp = pp->conn_out_get(AF_INET, skb, &ciph, offset, 1); + cp = pp->conn_out_get(AF_INET, skb, &ciph, 1); if (!cp) return NF_ACCEPT; @@ -919,7 +913,7 @@ static int ip_vs_out_icmp(struct sk_buff *skb, int *related, #ifdef CONFIG_IP_VS_IPV6 static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related, - unsigned int hooknum) + unsigned int hooknum, struct ip_vs_iphdr *ipvsh) { struct icmp6hdr _icmph, *ic; struct ipv6hdr _ip6h, *ip6h; /* The ip header contained within ICMP */ @@ -929,10 +923,6 @@ static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related, union nf_inet_addr snet; unsigned int writable; - struct ip_vs_iphdr ipvsh_stack; - struct ip_vs_iphdr *ipvsh = &ipvsh_stack; - ip_vs_fill_iph_skb(AF_INET6, skb, ipvsh); - *related = 1; ic = frag_safe_skb_hp(skb, ipvsh->len, sizeof(_icmph), &_icmph, ipvsh); if (ic == NULL) @@ -976,7 +966,7 @@ static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related, return NF_ACCEPT; /* The embedded headers contain source and dest in reverse order */ - cp = pp->conn_out_get(AF_INET6, skb, &ciph, ciph.len, 1); + cp = pp->conn_out_get(AF_INET6, skb, &ciph, 1); if (!cp) return NF_ACCEPT; @@ -1016,17 +1006,17 @@ static inline int is_tcp_reset(const struct sk_buff *skb, int nh_len) */ static unsigned int handle_response(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, - struct ip_vs_conn *cp, int ihl) + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { struct ip_vs_protocol *pp = pd->pp; IP_VS_DBG_PKT(11, af, pp, skb, 0, "Outgoing packet"); - if (!skb_make_writable(skb, ihl)) + if (!skb_make_writable(skb, iph->len)) goto drop; /* mangle the packet */ - if (pp->snat_handler && !pp->snat_handler(skb, pp, cp)) + if (pp->snat_handler && !pp->snat_handler(skb, pp, cp, iph)) goto drop; #ifdef CONFIG_IP_VS_IPV6 @@ -1125,7 +1115,7 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af) if (unlikely(iph.protocol == IPPROTO_ICMPV6)) { int related; int verdict = ip_vs_out_icmp_v6(skb, &related, - hooknum); + hooknum, &iph); if (related) return verdict; @@ -1160,10 +1150,10 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af) /* * Check if the packet belongs to an existing entry */ - cp = pp->conn_out_get(af, skb, &iph, iph.len, 0); + cp = pp->conn_out_get(af, skb, &iph, 0); if (likely(cp)) - return handle_response(af, skb, pd, cp, iph.len); + return handle_response(af, skb, pd, cp, &iph); if (sysctl_nat_icmp_send(net) && (pp->protocol == IPPROTO_TCP || pp->protocol == IPPROTO_UDP || @@ -1375,7 +1365,7 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum) /* The embedded headers contain source and dest in reverse order. * For IPIP this is error for request, not for reply. */ - cp = pp->conn_in_get(AF_INET, skb, &ciph, offset, ipip ? 0 : 1); + cp = pp->conn_in_get(AF_INET, skb, &ciph, ipip ? 0 : 1); if (!cp) return NF_ACCEPT; @@ -1444,7 +1434,7 @@ ignore_ipip: ip_vs_in_stats(cp, skb); if (IPPROTO_TCP == cih->protocol || IPPROTO_UDP == cih->protocol) offset += 2 * sizeof(__u16); - verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum); + verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum, &ciph); out: __ip_vs_conn_put(cp); @@ -1453,8 +1443,8 @@ out: } #ifdef CONFIG_IP_VS_IPV6 -static int -ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum) +static int ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, + unsigned int hooknum, struct ip_vs_iphdr *iph) { struct net *net = NULL; struct ipv6hdr _ip6h, *ip6h; @@ -1465,10 +1455,6 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum) struct ip_vs_proto_data *pd; unsigned int offs_ciph, writable, verdict; - struct ip_vs_iphdr iph_stack; - struct ip_vs_iphdr *iph = &iph_stack; - ip_vs_fill_iph_skb(AF_INET6, skb, iph); - *related = 1; ic = frag_safe_skb_hp(skb, iph->len, sizeof(_icmph), &_icmph, iph); @@ -1525,7 +1511,7 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum) /* The embedded headers contain source and dest in reverse order * if not from localhost */ - cp = pp->conn_in_get(AF_INET6, skb, &ciph, ciph.len, + cp = pp->conn_in_get(AF_INET6, skb, &ciph, (hooknum == NF_INET_LOCAL_OUT) ? 0 : 1); if (!cp) @@ -1546,7 +1532,7 @@ ip_vs_in_icmp_v6(struct sk_buff *skb, int *related, unsigned int hooknum) IPPROTO_SCTP == ciph.protocol) writable += 2 * sizeof(__u16); /* Also mangle ports */ - verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, writable, hooknum); + verdict = ip_vs_icmp_xmit_v6(skb, cp, pp, writable, hooknum, &ciph); __ip_vs_conn_put(cp); @@ -1616,7 +1602,8 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) } if (unlikely(iph.protocol == IPPROTO_ICMPV6)) { int related; - int verdict = ip_vs_in_icmp_v6(skb, &related, hooknum); + int verdict = ip_vs_in_icmp_v6(skb, &related, hooknum, + &iph); if (related) return verdict; @@ -1639,8 +1626,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) /* * Check if the packet belongs to an existing connection entry */ - cp = pp->conn_in_get(af, skb, &iph, iph.len, 0); - + cp = pp->conn_in_get(af, skb, &iph, 0); if (unlikely(!cp) && !iph.fragoffs) { /* No (second) fragments need to enter here, as nf_defrag_ipv6 * replayed fragment zero will already have created the cp @@ -1648,7 +1634,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) int v; /* Schedule and create new connection entry into &cp */ - if (!pp->conn_schedule(af, skb, pd, &v, &cp)) + if (!pp->conn_schedule(af, skb, pd, &v, &cp, &iph)) return v; } @@ -1686,7 +1672,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) ip_vs_in_stats(cp, skb); ip_vs_set_state(cp, IP_VS_DIR_INPUT, skb, pd); if (cp->packet_xmit) - ret = cp->packet_xmit(skb, cp, pp); + ret = cp->packet_xmit(skb, cp, pp, &iph); /* do not touch skb anymore */ else { IP_VS_DBG_RL("warning: packet_xmit is null"); @@ -1860,7 +1846,7 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb, if (!net_ipvs(net)->enable) return NF_ACCEPT; - return ip_vs_in_icmp_v6(skb, &r, hooknum); + return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr); } #endif diff --git a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c index 5b8eb8b..5de3dd3 100644 --- a/net/netfilter/ipvs/ip_vs_proto_ah_esp.c +++ b/net/netfilter/ipvs/ip_vs_proto_ah_esp.c @@ -57,7 +57,7 @@ ah_esp_conn_fill_param_proto(struct net *net, int af, static struct ip_vs_conn * ah_esp_conn_in_get(int af, const struct sk_buff *skb, - const struct ip_vs_iphdr *iph, unsigned int proto_off, + const struct ip_vs_iphdr *iph, int inverse) { struct ip_vs_conn *cp; @@ -85,9 +85,7 @@ ah_esp_conn_in_get(int af, const struct sk_buff *skb, static struct ip_vs_conn * ah_esp_conn_out_get(int af, const struct sk_buff *skb, - const struct ip_vs_iphdr *iph, - unsigned int proto_off, - int inverse) + const struct ip_vs_iphdr *iph, int inverse) { struct ip_vs_conn *cp; struct ip_vs_conn_param p; @@ -110,7 +108,8 @@ ah_esp_conn_out_get(int af, const struct sk_buff *skb, static int ah_esp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, - int *verdict, struct ip_vs_conn **cpp) + int *verdict, struct ip_vs_conn **cpp, + struct ip_vs_iphdr *iph) { /* * AH/ESP is only related traffic. Pass the packet to IP stack. diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c index b903db6..746048b 100644 --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c @@ -10,28 +10,26 @@ static int sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, - int *verdict, struct ip_vs_conn **cpp) + int *verdict, struct ip_vs_conn **cpp, + struct ip_vs_iphdr *iph) { struct net *net; struct ip_vs_service *svc; sctp_chunkhdr_t _schunkh, *sch; sctp_sctphdr_t *sh, _sctph; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(af, skb, &iph); - - sh = skb_header_pointer(skb, iph.len, sizeof(_sctph), &_sctph); + sh = skb_header_pointer(skb, iph->len, sizeof(_sctph), &_sctph); if (sh == NULL) return 0; - sch = skb_header_pointer(skb, iph.len + sizeof(sctp_sctphdr_t), + sch = skb_header_pointer(skb, iph->len + sizeof(sctp_sctphdr_t), sizeof(_schunkh), &_schunkh); if (sch == NULL) return 0; net = skb_net(skb); if ((sch->type == SCTP_CID_INIT) && - (svc = ip_vs_service_get(net, af, skb->mark, iph.protocol, - &iph.daddr, sh->dest))) { + (svc = ip_vs_service_get(net, af, skb->mark, iph->protocol, + &iph->daddr, sh->dest))) { int ignored; if (ip_vs_todrop(net_ipvs(net))) { @@ -47,10 +45,10 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, * Let the virtual server select a real server for the * incoming connection, and create a connection entry. */ - *cpp = ip_vs_schedule(svc, skb, pd, &ignored); + *cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph); if (!*cpp && ignored <= 0) { if (!ignored) - *verdict = ip_vs_leave(svc, skb, pd); + *verdict = ip_vs_leave(svc, skb, pd, iph); else { ip_vs_service_put(svc); *verdict = NF_DROP; @@ -64,20 +62,16 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, } static int -sctp_snat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { sctp_sctphdr_t *sctph; - unsigned int sctphoff; + unsigned int sctphoff = iph->len; struct sk_buff *iter; __be32 crc32; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - sctphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif @@ -110,20 +104,16 @@ sctp_snat_handler(struct sk_buff *skb, } static int -sctp_dnat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { sctp_sctphdr_t *sctph; - unsigned int sctphoff; + unsigned int sctphoff = iph->len; struct sk_buff *iter; __be32 crc32; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - sctphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c index 8a96069..9af653a 100644 --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c @@ -33,16 +33,14 @@ static int tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, - int *verdict, struct ip_vs_conn **cpp) + int *verdict, struct ip_vs_conn **cpp, + struct ip_vs_iphdr *iph) { struct net *net; struct ip_vs_service *svc; struct tcphdr _tcph, *th; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(af, skb, &iph); - - th = skb_header_pointer(skb, iph.len, sizeof(_tcph), &_tcph); + th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph); if (th == NULL) { *verdict = NF_DROP; return 0; @@ -50,8 +48,8 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, net = skb_net(skb); /* No !th->ack check to allow scheduling on SYN+ACK for Active FTP */ if (th->syn && - (svc = ip_vs_service_get(net, af, skb->mark, iph.protocol, - &iph.daddr, th->dest))) { + (svc = ip_vs_service_get(net, af, skb->mark, iph->protocol, + &iph->daddr, th->dest))) { int ignored; if (ip_vs_todrop(net_ipvs(net))) { @@ -68,10 +66,10 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, * Let the virtual server select a real server for the * incoming connection, and create a connection entry. */ - *cpp = ip_vs_schedule(svc, skb, pd, &ignored); + *cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph); if (!*cpp && ignored <= 0) { if (!ignored) - *verdict = ip_vs_leave(svc, skb, pd); + *verdict = ip_vs_leave(svc, skb, pd, iph); else { ip_vs_service_put(svc); *verdict = NF_DROP; @@ -128,20 +126,16 @@ tcp_partial_csum_update(int af, struct tcphdr *tcph, static int -tcp_snat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +tcp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { struct tcphdr *tcph; - unsigned int tcphoff; + unsigned int tcphoff = iph->len; int oldlen; int payload_csum = 0; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - tcphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif oldlen = skb->len - tcphoff; @@ -210,20 +204,16 @@ tcp_snat_handler(struct sk_buff *skb, static int -tcp_dnat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +tcp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { struct tcphdr *tcph; - unsigned int tcphoff; + unsigned int tcphoff = iph->len; int oldlen; int payload_csum = 0; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - tcphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif oldlen = skb->len - tcphoff; diff --git a/net/netfilter/ipvs/ip_vs_proto_udp.c b/net/netfilter/ipvs/ip_vs_proto_udp.c index d6f4eee..503a842 100644 --- a/net/netfilter/ipvs/ip_vs_proto_udp.c +++ b/net/netfilter/ipvs/ip_vs_proto_udp.c @@ -30,23 +30,22 @@ static int udp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, - int *verdict, struct ip_vs_conn **cpp) + int *verdict, struct ip_vs_conn **cpp, + struct ip_vs_iphdr *iph) { struct net *net; struct ip_vs_service *svc; struct udphdr _udph, *uh; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(af, skb, &iph); - - uh = skb_header_pointer(skb, iph.len, sizeof(_udph), &_udph); + /* IPv6 fragments, only first fragment will hit this */ + uh = skb_header_pointer(skb, iph->len, sizeof(_udph), &_udph); if (uh == NULL) { *verdict = NF_DROP; return 0; } net = skb_net(skb); - svc = ip_vs_service_get(net, af, skb->mark, iph.protocol, - &iph.daddr, uh->dest); + svc = ip_vs_service_get(net, af, skb->mark, iph->protocol, + &iph->daddr, uh->dest); if (svc) { int ignored; @@ -64,10 +63,10 @@ udp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd, * Let the virtual server select a real server for the * incoming connection, and create a connection entry. */ - *cpp = ip_vs_schedule(svc, skb, pd, &ignored); + *cpp = ip_vs_schedule(svc, skb, pd, &ignored, iph); if (!*cpp && ignored <= 0) { if (!ignored) - *verdict = ip_vs_leave(svc, skb, pd); + *verdict = ip_vs_leave(svc, skb, pd, iph); else { ip_vs_service_put(svc); *verdict = NF_DROP; @@ -125,20 +124,16 @@ udp_partial_csum_update(int af, struct udphdr *uhdr, static int -udp_snat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +udp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { struct udphdr *udph; - unsigned int udphoff; + unsigned int udphoff = iph->len; int oldlen; int payload_csum = 0; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - udphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif oldlen = skb->len - udphoff; @@ -212,20 +207,16 @@ udp_snat_handler(struct sk_buff *skb, static int -udp_dnat_handler(struct sk_buff *skb, - struct ip_vs_protocol *pp, struct ip_vs_conn *cp) +udp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp, + struct ip_vs_conn *cp, struct ip_vs_iphdr *iph) { struct udphdr *udph; - unsigned int udphoff; + unsigned int udphoff = iph->len; int oldlen; int payload_csum = 0; - struct ip_vs_iphdr iph; - ip_vs_fill_iph_skb(cp->af, skb, &iph); - udphoff = iph.len; - #ifdef CONFIG_IP_VS_IPV6 - if (cp->af == AF_INET6 && iph.fragoffs) + if (cp->af == AF_INET6 && iph->fragoffs) return 1; #endif oldlen = skb->len - udphoff; diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c index a8b75fc..90122eb 100644 --- a/net/netfilter/ipvs/ip_vs_xmit.c +++ b/net/netfilter/ipvs/ip_vs_xmit.c @@ -424,7 +424,7 @@ do { \ */ int ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { /* we do not touch skb and do not need pskb ptr */ IP_VS_XMIT(NFPROTO_IPV4, skb, cp, 1); @@ -438,7 +438,7 @@ ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, */ int ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { struct rtable *rt; /* Route to the other host */ struct iphdr *iph = ip_hdr(skb); @@ -493,16 +493,14 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, #ifdef CONFIG_IP_VS_IPV6 int ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph) { struct rt6_info *rt; /* Route to the other host */ - struct ip_vs_iphdr iph; int mtu; EnterFunction(10); - ip_vs_fill_iph_skb(cp->af, skb, &iph); - rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph.daddr.in6, NULL, 0, + rt = __ip_vs_get_out_rt_v6(skb, NULL, &iph->daddr.in6, NULL, 0, IP_VS_RT_MODE_NON_LOCAL); if (!rt) goto tx_error_icmp; @@ -516,7 +514,7 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, skb->dev = net->loopback_dev; } /* only send ICMP too big on first fragment */ - if (!iph.fragoffs) + if (!iph->fragoffs) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); dst_release(&rt->dst); IP_VS_DBG_RL("%s(): frag needed\n", __func__); @@ -560,7 +558,7 @@ ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, */ int ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { struct rtable *rt; /* Route to the other host */ int mtu; @@ -630,7 +628,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, goto tx_error_put; /* mangle the packet */ - if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp)) + if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp, ipvsh)) goto tx_error_put; ip_hdr(skb)->daddr = cp->daddr.ip; ip_send_check(ip_hdr(skb)); @@ -678,20 +676,18 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, #ifdef CONFIG_IP_VS_IPV6 int ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph) { struct rt6_info *rt; /* Route to the other host */ int mtu; int local; - struct ip_vs_iphdr iph; EnterFunction(10); - ip_vs_fill_iph_skb(cp->af, skb, &iph); /* check if it is a connection of no-client-port */ - if (unlikely(cp->flags & IP_VS_CONN_F_NO_CPORT && !iph.fragoffs)) { + if (unlikely(cp->flags & IP_VS_CONN_F_NO_CPORT && !iph->fragoffs)) { __be16 _pt, *p; - p = skb_header_pointer(skb, iph.len, sizeof(_pt), &_pt); + p = skb_header_pointer(skb, iph->len, sizeof(_pt), &_pt); if (p == NULL) goto tx_error; ip_vs_conn_fill_cport(cp, *p); @@ -740,7 +736,7 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, skb->dev = net->loopback_dev; } /* only send ICMP too big on first fragment */ - if (!iph.fragoffs) + if (!iph->fragoffs) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); IP_VS_DBG_RL_PKT(0, AF_INET6, pp, skb, 0, "ip_vs_nat_xmit_v6(): frag needed for"); @@ -755,7 +751,7 @@ ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, goto tx_error_put; /* mangle the packet */ - if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp)) + if (pp->dnat_handler && !pp->dnat_handler(skb, pp, cp, iph)) goto tx_error; ipv6_hdr(skb)->daddr = cp->daddr.in6; @@ -816,7 +812,7 @@ tx_error_put: */ int ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { struct netns_ipvs *ipvs = net_ipvs(skb_net(skb)); struct rtable *rt; /* Route to the other host */ @@ -936,7 +932,7 @@ tx_error_put: #ifdef CONFIG_IP_VS_IPV6 int ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { struct rt6_info *rt; /* Route to the other host */ struct in6_addr saddr; /* Source for tunnel */ @@ -946,10 +942,8 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, unsigned int max_headroom; /* The extra header space needed */ int mtu; int ret; - struct ip_vs_iphdr ipvsh; EnterFunction(10); - ip_vs_fill_iph_skb(cp->af, skb, &ipvsh); if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6, &saddr, 1, (IP_VS_RT_MODE_LOCAL | @@ -979,7 +973,7 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, skb->dev = net->loopback_dev; } /* only send ICMP too big on first fragment */ - if (!ipvsh.fragoffs) + if (!ipvsh->fragoffs) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); IP_VS_DBG_RL("%s(): frag needed\n", __func__); goto tx_error_put; @@ -1061,7 +1055,7 @@ tx_error_put: */ int ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *ipvsh) { struct rtable *rt; /* Route to the other host */ struct iphdr *iph = ip_hdr(skb); @@ -1122,14 +1116,12 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, #ifdef CONFIG_IP_VS_IPV6 int ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp) + struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph) { struct rt6_info *rt; /* Route to the other host */ int mtu; - struct ip_vs_iphdr iph; EnterFunction(10); - ip_vs_fill_iph_skb(cp->af, skb, &iph); if (!(rt = __ip_vs_get_out_rt_v6(skb, cp->dest, &cp->daddr.in6, NULL, 0, (IP_VS_RT_MODE_LOCAL | @@ -1149,7 +1141,7 @@ ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, skb->dev = net->loopback_dev; } /* only send ICMP too big on first fragment */ - if (!iph.fragoffs) + if (!iph->fragoffs) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); dst_release(&rt->dst); IP_VS_DBG_RL("%s(): frag needed\n", __func__); @@ -1194,7 +1186,8 @@ tx_error: */ int ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp, int offset, unsigned int hooknum) + struct ip_vs_protocol *pp, int offset, unsigned int hooknum, + struct ip_vs_iphdr *iph) { struct rtable *rt; /* Route to the other host */ int mtu; @@ -1209,7 +1202,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, translate address/port back */ if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ) { if (cp->packet_xmit) - rc = cp->packet_xmit(skb, cp, pp); + rc = cp->packet_xmit(skb, cp, pp, iph); else rc = NF_ACCEPT; /* do not touch skb anymore */ @@ -1315,24 +1308,23 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, #ifdef CONFIG_IP_VS_IPV6 int ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, - struct ip_vs_protocol *pp, int offset, unsigned int hooknum) + struct ip_vs_protocol *pp, int offset, unsigned int hooknum, + struct ip_vs_iphdr *iph) { struct rt6_info *rt; /* Route to the other host */ int mtu; int rc; int local; int rt_mode; - struct ip_vs_iphdr iph; EnterFunction(10); - ip_vs_fill_iph_skb(cp->af, skb, &iph); /* The ICMP packet for VS/TUN, VS/DR and LOCALNODE will be forwarded directly here, because there is no need to translate address/port back */ if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ) { if (cp->packet_xmit) - rc = cp->packet_xmit(skb, cp, pp); + rc = cp->packet_xmit(skb, cp, pp, iph); else rc = NF_ACCEPT; /* do not touch skb anymore */ @@ -1389,7 +1381,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, skb->dev = net->loopback_dev; } /* only send ICMP too big on first fragment */ - if (!iph.fragoffs) + if (!iph->fragoffs) icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); IP_VS_DBG_RL("%s(): frag needed\n", __func__); goto tx_error_put; diff --git a/net/netfilter/xt_ipvs.c b/net/netfilter/xt_ipvs.c index 3f9b8cd..8d47c37 100644 --- a/net/netfilter/xt_ipvs.c +++ b/net/netfilter/xt_ipvs.c @@ -85,7 +85,7 @@ ipvs_mt(const struct sk_buff *skb, struct xt_action_param *par) /* * Check if the packet belongs to an existing entry */ - cp = pp->conn_out_get(family, skb, &iph, iph.len, 1 /* inverse */); + cp = pp->conn_out_get(family, skb, &iph, 1 /* inverse */); if (unlikely(cp == NULL)) { match = false; goto out; |