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-rw-r--r--net/ipv6/Kconfig44
-rw-r--r--net/ipv6/ip6_flowlabel.c2
-rw-r--r--net/ipv6/ipv6_sockglue.c2
-rw-r--r--net/ipv6/mcast.c1
-rw-r--r--net/ipv6/netfilter/Kconfig6
-rw-r--r--net/ipv6/seg6.c16
-rw-r--r--net/ipv6/seg6_iptunnel.c2
-rw-r--r--net/ipv6/seg6_local.c6
8 files changed, 42 insertions, 37 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 4f03aece2980..992cf45fb4f6 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -7,7 +7,7 @@
menuconfig IPV6
tristate "The IPv6 protocol"
default y
- ---help---
+ help
Support for IP version 6 (IPv6).
For general information about IPv6, see
@@ -23,7 +23,7 @@ if IPV6
config IPV6_ROUTER_PREF
bool "IPv6: Router Preference (RFC 4191) support"
- ---help---
+ help
Router Preference is an optional extension to the Router
Advertisement message which improves the ability of hosts
to pick an appropriate router, especially when the hosts
@@ -34,14 +34,14 @@ config IPV6_ROUTER_PREF
config IPV6_ROUTE_INFO
bool "IPv6: Route Information (RFC 4191) support"
depends on IPV6_ROUTER_PREF
- ---help---
+ help
Support of Route Information.
If unsure, say N.
config IPV6_OPTIMISTIC_DAD
bool "IPv6: Enable RFC 4429 Optimistic DAD"
- ---help---
+ help
Support for optimistic Duplicate Address Detection. It allows for
autoconfigured addresses to be used more quickly.
@@ -54,7 +54,7 @@ config INET6_AH
select CRYPTO_HMAC
select CRYPTO_MD5
select CRYPTO_SHA1
- ---help---
+ help
Support for IPsec AH.
If unsure, say Y.
@@ -70,7 +70,7 @@ config INET6_ESP
select CRYPTO_SHA1
select CRYPTO_DES
select CRYPTO_ECHAINIV
- ---help---
+ help
Support for IPsec ESP.
If unsure, say Y.
@@ -80,7 +80,7 @@ config INET6_ESP_OFFLOAD
depends on INET6_ESP
select XFRM_OFFLOAD
default n
- ---help---
+ help
Support for ESP transformation offload. This makes sense
only if this system really does IPsec and want to do it
with high throughput. A typical desktop system does not
@@ -104,7 +104,7 @@ config INET6_IPCOMP
tristate "IPv6: IPComp transformation"
select INET6_XFRM_TUNNEL
select XFRM_IPCOMP
- ---help---
+ help
Support for IP Payload Compression Protocol (IPComp) (RFC3173),
typically needed for IPsec.
@@ -113,7 +113,7 @@ config INET6_IPCOMP
config IPV6_MIP6
tristate "IPv6: Mobility"
select XFRM
- ---help---
+ help
Support for IPv6 Mobility described in RFC 3775.
If unsure, say N.
@@ -123,7 +123,7 @@ config IPV6_ILA
depends on NETFILTER
select DST_CACHE
select LWTUNNEL
- ---help---
+ help
Support for IPv6 Identifier Locator Addressing (ILA).
ILA is a mechanism to do network virtualization without
@@ -153,7 +153,7 @@ tristate "Virtual (secure) IPv6: tunneling"
select IPV6_TUNNEL
select NET_IP_TUNNEL
select XFRM
- ---help---
+ help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
encapsulating protocol. This can be used with xfrm mode tunnel to give
@@ -166,7 +166,7 @@ config IPV6_SIT
select NET_IP_TUNNEL
select IPV6_NDISC_NODETYPE
default y
- ---help---
+ help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
encapsulating protocol. This driver implements encapsulation of IPv6
@@ -179,7 +179,7 @@ config IPV6_SIT_6RD
bool "IPv6: IPv6 Rapid Deployment (6RD)"
depends on IPV6_SIT
default n
- ---help---
+ help
IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly
deploy IPv6 unicast service to IPv4 sites to which it provides
@@ -202,7 +202,7 @@ config IPV6_TUNNEL
select INET6_TUNNEL
select DST_CACHE
select GRO_CELLS
- ---help---
+ help
Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
RFC 2473.
@@ -213,7 +213,7 @@ config IPV6_GRE
select IPV6_TUNNEL
select NET_IP_TUNNEL
depends on NET_IPGRE_DEMUX
- ---help---
+ help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
encapsulating protocol. This particular tunneling driver implements
@@ -238,13 +238,13 @@ config IPV6_FOU_TUNNEL
config IPV6_MULTIPLE_TABLES
bool "IPv6: Multiple Routing Tables"
select FIB_RULES
- ---help---
+ help
Support multiple routing tables.
config IPV6_SUBTREES
bool "IPv6: source address based routing"
depends on IPV6_MULTIPLE_TABLES
- ---help---
+ help
Enable routing by source address or prefix.
The destination address is still the primary routing key, so mixing
@@ -259,7 +259,7 @@ config IPV6_MROUTE
bool "IPv6: multicast routing"
depends on IPV6
select IP_MROUTE_COMMON
- ---help---
+ help
Support for IPv6 multicast forwarding.
If unsure, say N.
@@ -280,7 +280,7 @@ config IPV6_MROUTE_MULTIPLE_TABLES
config IPV6_PIMSM_V2
bool "IPv6: PIM-SM version 2 support"
depends on IPV6_MROUTE
- ---help---
+ help
Support for IPv6 PIM multicast routing protocol PIM-SMv2.
If unsure, say N.
@@ -290,7 +290,7 @@ config IPV6_SEG6_LWTUNNEL
select LWTUNNEL
select DST_CACHE
select IPV6_MULTIPLE_TABLES
- ---help---
+ help
Support for encapsulation of packets within an outer IPv6
header and a Segment Routing Header using the lightweight
tunnels mechanism. Also enable support for advanced local
@@ -304,7 +304,7 @@ config IPV6_SEG6_HMAC
select CRYPTO_HMAC
select CRYPTO_SHA1
select CRYPTO_SHA256
- ---help---
+ help
Support for HMAC signature generation and verification
of SR-enabled packets.
@@ -319,7 +319,7 @@ config IPV6_RPL_LWTUNNEL
bool "IPv6: RPL Source Routing Header support"
depends on IPV6
select LWTUNNEL
- ---help---
+ help
Support for RFC6554 RPL Source Routing Header using the lightweight
tunnels mechanism.
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index d64b83e85642..ce4fbba4acce 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -779,7 +779,7 @@ static void *ip6fl_seq_start(struct seq_file *seq, loff_t *pos)
{
struct ip6fl_iter_state *state = ip6fl_seq_private(seq);
- state->pid_ns = proc_pid_ns(file_inode(seq->file));
+ state->pid_ns = proc_pid_ns(file_inode(seq->file)->i_sb);
rcu_read_lock_bh();
return *pos ? ip6fl_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 2c843ff5e3a9..20576e87a5f7 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -493,7 +493,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
struct ipv6_sr_hdr *srh = (struct ipv6_sr_hdr *)
opt->srcrt;
- if (!seg6_validate_srh(srh, optlen))
+ if (!seg6_validate_srh(srh, optlen, false))
goto sticky_done;
break;
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 7e12d2114158..8cd2782a31e4 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2615,6 +2615,7 @@ void ipv6_mc_destroy_dev(struct inet6_dev *idev)
idev->mc_list = i->next;
write_unlock_bh(&idev->lock);
+ ip6_mc_clear_src(i);
ma_put(i);
write_lock_bh(&idev->lock);
}
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 0594131fa46d..262bb51a2d99 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -127,7 +127,7 @@ config IP6_NF_MATCH_HL
tristate '"hl" hoplimit match support'
depends on NETFILTER_ADVANCED
select NETFILTER_XT_MATCH_HL
- ---help---
+ help
This is a backwards-compat option for the user's convenience
(e.g. when running oldconfig). It selects
CONFIG_NETFILTER_XT_MATCH_HL.
@@ -153,7 +153,7 @@ config IP6_NF_MATCH_RPFILTER
tristate '"rpfilter" reverse path filter match support'
depends on NETFILTER_ADVANCED
depends on IP6_NF_MANGLE || IP6_NF_RAW
- ---help---
+ help
This option allows you to match packets whose replies would
go out via the interface the packet came in.
@@ -183,7 +183,7 @@ config IP6_NF_TARGET_HL
tristate '"HL" hoplimit target support'
depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
select NETFILTER_XT_TARGET_HL
- ---help---
+ help
This is a backwards-compatible option for the user's convenience
(e.g. when running oldconfig). It selects
CONFIG_NETFILTER_XT_TARGET_HL.
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index 37b434293bda..d2f8138e5a73 100644
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -25,7 +25,7 @@
#include <net/seg6_hmac.h>
#endif
-bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len)
+bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len, bool reduced)
{
unsigned int tlv_offset;
int max_last_entry;
@@ -37,13 +37,17 @@ bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len)
if (((srh->hdrlen + 1) << 3) != len)
return false;
- max_last_entry = (srh->hdrlen / 2) - 1;
-
- if (srh->first_segment > max_last_entry)
+ if (!reduced && srh->segments_left > srh->first_segment) {
return false;
+ } else {
+ max_last_entry = (srh->hdrlen / 2) - 1;
- if (srh->segments_left > srh->first_segment + 1)
- return false;
+ if (srh->first_segment > max_last_entry)
+ return false;
+
+ if (srh->segments_left > srh->first_segment + 1)
+ return false;
+ }
tlv_offset = sizeof(*srh) + ((srh->first_segment + 1) << 4);
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index c7cbfeae94f5..e0e9f48ab14f 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -426,7 +426,7 @@ static int seg6_build_state(struct net *net, struct nlattr *nla,
}
/* verify that SRH is consistent */
- if (!seg6_validate_srh(tuninfo->srh, tuninfo_len - sizeof(*tuninfo)))
+ if (!seg6_validate_srh(tuninfo->srh, tuninfo_len - sizeof(*tuninfo), false))
return -EINVAL;
newts = lwtunnel_state_alloc(tuninfo_len + sizeof(*slwt));
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 52493423f329..eba23279912d 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -87,7 +87,7 @@ static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
*/
srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
- if (!seg6_validate_srh(srh, len))
+ if (!seg6_validate_srh(srh, len, true))
return NULL;
return srh;
@@ -495,7 +495,7 @@ bool seg6_bpf_has_valid_srh(struct sk_buff *skb)
return false;
srh->hdrlen = (u8)(srh_state->hdrlen >> 3);
- if (!seg6_validate_srh(srh, (srh->hdrlen + 1) << 3))
+ if (!seg6_validate_srh(srh, (srh->hdrlen + 1) << 3, true))
return false;
srh_state->valid = true;
@@ -670,7 +670,7 @@ static int parse_nla_srh(struct nlattr **attrs, struct seg6_local_lwt *slwt)
if (len < sizeof(*srh) + sizeof(struct in6_addr))
return -EINVAL;
- if (!seg6_validate_srh(srh, len))
+ if (!seg6_validate_srh(srh, len, false))
return -EINVAL;
slwt->srh = kmemdup(srh, len, GFP_KERNEL);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.