From ae810f58cbfd08a654877f7f78239526e1caf117 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 18 Sep 2017 21:43:30 +0200 Subject: Fix adding an IPv4 range containing more than 2^31 addresses Wrong comparison prevented the hash types to add a range with more than 2^31 addresses but reported as a success. Fixes bugzilla id #1005, reported by Oleg Serditov and Oliver Ford. --- kernel/net/netfilter/ipset/ip_set_hash_ip.c | 22 ++++++++++++---------- kernel/net/netfilter/ipset/ip_set_hash_ipmark.c | 2 +- kernel/net/netfilter/ipset/ip_set_hash_ipport.c | 2 +- kernel/net/netfilter/ipset/ip_set_hash_ipportip.c | 2 +- kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c | 4 ++-- kernel/net/netfilter/ipset/ip_set_hash_net.c | 2 +- kernel/net/netfilter/ipset/ip_set_hash_netiface.c | 2 +- kernel/net/netfilter/ipset/ip_set_hash_netnet.c | 4 ++-- kernel/net/netfilter/ipset/ip_set_hash_netport.c | 2 +- .../net/netfilter/ipset/ip_set_hash_netportnet.c | 4 ++-- 10 files changed, 24 insertions(+), 22 deletions(-) (limited to 'kernel/net/netfilter/ipset') diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ip.c b/kernel/net/netfilter/ipset/ip_set_hash_ip.c index 20bfbd3..613eb21 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ip.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ip.c @@ -123,13 +123,12 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[], return ret; ip &= ip_set_hostmask(h->netmask); + e.ip = htonl(ip); + if (e.ip == 0) + return -IPSET_ERR_HASH_ELEM; - if (adt == IPSET_TEST) { - e.ip = htonl(ip); - if (e.ip == 0) - return -IPSET_ERR_HASH_ELEM; + if (adt == IPSET_TEST) return adtfn(set, &e, &ext, &ext, flags); - } ip_to = ip; if (tb[IPSET_ATTR_IP_TO]) { @@ -148,17 +147,20 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[], hosts = h->netmask == 32 ? 1 : 2 << (32 - h->netmask - 1); - if (retried) + if (retried) { ip = ntohl(h->next.ip); - for (; !before(ip_to, ip); ip += hosts) { e.ip = htonl(ip); - if (e.ip == 0) - return -IPSET_ERR_HASH_ELEM; + } + for (; ip <= ip_to;) { ret = adtfn(set, &e, &ext, &ext, flags); - if (ret && !ip_set_eexist(ret, flags)) return ret; + ip += hosts; + e.ip = htonl(ip); + if (e.ip == 0) + return 0; + ret = 0; } return ret; diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c b/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c index b64cf14..f3ba834 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ipmark.c @@ -149,7 +149,7 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - for (; !before(ip_to, ip); ip++) { + for (; ip <= ip_to; ip++) { e.ip = htonl(ip); ret = adtfn(set, &e, &ext, &ext, flags); diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipport.c b/kernel/net/netfilter/ipset/ip_set_hash_ipport.c index f438740..ddb8039 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ipport.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ipport.c @@ -178,7 +178,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - for (; !before(ip_to, ip); ip++) { + for (; ip <= ip_to; ip++) { p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) : port; for (; p <= port_to; p++) { diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c b/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c index 6215fb8..a7f4d7a 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ipportip.c @@ -185,7 +185,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - for (; !before(ip_to, ip); ip++) { + for (; ip <= ip_to; ip++) { p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) : port; for (; p <= port_to; p++) { diff --git a/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c b/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c index 24bf558..0f164e9 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_ipportnet.c @@ -271,7 +271,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - for (; !before(ip_to, ip); ip++) { + for (; ip <= ip_to; ip++) { e.ip = htonl(ip); p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) : port; @@ -281,7 +281,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], ip == ntohl(h->next.ip) && p == ntohs(h->next.port) ? ntohl(h->next.ip2) : ip2_from; - while (!after(ip2, ip2_to)) { + while (ip2 <= ip2_to) { e.ip2 = htonl(ip2); ip2_last = ip_set_range_to_cidr(ip2, ip2_to, &cidr); diff --git a/kernel/net/netfilter/ipset/ip_set_hash_net.c b/kernel/net/netfilter/ipset/ip_set_hash_net.c index 5d9e895..1c67a17 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_net.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_net.c @@ -193,7 +193,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[], } if (retried) ip = ntohl(h->next.ip); - while (!after(ip, ip_to)) { + while (ip <= ip_to) { e.ip = htonl(ip); last = ip_set_range_to_cidr(ip, ip_to, &e.cidr); ret = adtfn(set, &e, &ext, &ext, flags); diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netiface.c b/kernel/net/netfilter/ipset/ip_set_hash_netiface.c index 079bbe1..a111f7c 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_netiface.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_netiface.c @@ -255,7 +255,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - while (!after(ip, ip_to)) { + while (ip <= ip_to) { e.ip = htonl(ip); last = ip_set_range_to_cidr(ip, ip_to, &e.cidr); ret = adtfn(set, &e, &ext, &ext, flags); diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netnet.c b/kernel/net/netfilter/ipset/ip_set_hash_netnet.c index db614e1..7f9ae2e 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_netnet.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_netnet.c @@ -250,13 +250,13 @@ hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip[0]); - while (!after(ip, ip_to)) { + while (ip <= ip_to) { e.ip[0] = htonl(ip); last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]); ip2 = (retried && ip == ntohl(h->next.ip[0])) ? ntohl(h->next.ip[1]) : ip2_from; - while (!after(ip2, ip2_to)) { + while (ip2 <= ip2_to) { e.ip[1] = htonl(ip2); last2 = ip_set_range_to_cidr(ip2, ip2_to, &e.cidr[1]); ret = adtfn(set, &e, &ext, &ext, flags); diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netport.c b/kernel/net/netfilter/ipset/ip_set_hash_netport.c index 54b64b6..e6ef382 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_netport.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_netport.c @@ -241,7 +241,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip); - while (!after(ip, ip_to)) { + while (ip <= ip_to) { e.ip = htonl(ip); last = ip_set_range_to_cidr(ip, ip_to, &cidr); e.cidr = cidr - 1; diff --git a/kernel/net/netfilter/ipset/ip_set_hash_netportnet.c b/kernel/net/netfilter/ipset/ip_set_hash_netportnet.c index aff8469..8602f25 100644 --- a/kernel/net/netfilter/ipset/ip_set_hash_netportnet.c +++ b/kernel/net/netfilter/ipset/ip_set_hash_netportnet.c @@ -291,7 +291,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[], if (retried) ip = ntohl(h->next.ip[0]); - while (!after(ip, ip_to)) { + while (ip <= ip_to) { e.ip[0] = htonl(ip); ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]); p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port) @@ -301,7 +301,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[], ip2 = (retried && ip == ntohl(h->next.ip[0]) && p == ntohs(h->next.port)) ? ntohl(h->next.ip[1]) : ip2_from; - while (!after(ip2, ip2_to)) { + while (ip2 <= ip2_to) { e.ip[1] = htonl(ip2); ip2_last = ip_set_range_to_cidr(ip2, ip2_to, &e.cidr[1]); -- cgit v1.2.3