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-rw-r--r--main/linux-grsec/net-handle-different-key-sizes-between-address-families-in-flow-cache.patch140
1 files changed, 0 insertions, 140 deletions
diff --git a/main/linux-grsec/net-handle-different-key-sizes-between-address-families-in-flow-cache.patch b/main/linux-grsec/net-handle-different-key-sizes-between-address-families-in-flow-cache.patch
deleted file mode 100644
index 9fe93a1a6b..0000000000
--- a/main/linux-grsec/net-handle-different-key-sizes-between-address-families-in-flow-cache.patch
+++ /dev/null
@@ -1,140 +0,0 @@
-From aa1c366e4febc7f5c2b84958a2dd7cd70e28f9d0 Mon Sep 17 00:00:00 2001
-From: dpward <david.ward@ll.mit.edu>
-Date: Mon, 5 Sep 2011 16:47:24 +0000
-Subject: net: Handle different key sizes between address families in flow cache
-
-From: dpward <david.ward@ll.mit.edu>
-
-commit aa1c366e4febc7f5c2b84958a2dd7cd70e28f9d0 upstream.
-
-With the conversion of struct flowi to a union of AF-specific structs, some
-operations on the flow cache need to account for the exact size of the key.
-
-Signed-off-by: David Ward <david.ward@ll.mit.edu>
-Signed-off-by: David S. Miller <davem@davemloft.net>
-Cc: Kim Phillips <kim.phillips@freescale.com>
-Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-
----
- include/net/flow.h | 19 +++++++++++++++++++
- net/core/flow.c | 31 +++++++++++++++++--------------
- 2 files changed, 36 insertions(+), 14 deletions(-)
-
---- a/include/net/flow.h
-+++ b/include/net/flow.h
-@@ -7,6 +7,7 @@
- #ifndef _NET_FLOW_H
- #define _NET_FLOW_H
-
-+#include <linux/socket.h>
- #include <linux/in6.h>
- #include <asm/atomic.h>
-
-@@ -161,6 +162,24 @@ static inline struct flowi *flowidn_to_f
- return container_of(fldn, struct flowi, u.dn);
- }
-
-+typedef unsigned long flow_compare_t;
-+
-+static inline size_t flow_key_size(u16 family)
-+{
-+ switch (family) {
-+ case AF_INET:
-+ BUILD_BUG_ON(sizeof(struct flowi4) % sizeof(flow_compare_t));
-+ return sizeof(struct flowi4) / sizeof(flow_compare_t);
-+ case AF_INET6:
-+ BUILD_BUG_ON(sizeof(struct flowi6) % sizeof(flow_compare_t));
-+ return sizeof(struct flowi6) / sizeof(flow_compare_t);
-+ case AF_DECnet:
-+ BUILD_BUG_ON(sizeof(struct flowidn) % sizeof(flow_compare_t));
-+ return sizeof(struct flowidn) / sizeof(flow_compare_t);
-+ }
-+ return 0;
-+}
-+
- #define FLOW_DIR_IN 0
- #define FLOW_DIR_OUT 1
- #define FLOW_DIR_FWD 2
---- a/net/core/flow.c
-+++ b/net/core/flow.c
-@@ -172,29 +172,26 @@ static void flow_new_hash_rnd(struct flo
-
- static u32 flow_hash_code(struct flow_cache *fc,
- struct flow_cache_percpu *fcp,
-- const struct flowi *key)
-+ const struct flowi *key,
-+ size_t keysize)
- {
- const u32 *k = (const u32 *) key;
-+ const u32 length = keysize * sizeof(flow_compare_t) / sizeof(u32);
-
-- return jhash2(k, (sizeof(*key) / sizeof(u32)), fcp->hash_rnd)
-+ return jhash2(k, length, fcp->hash_rnd)
- & (flow_cache_hash_size(fc) - 1);
- }
-
--typedef unsigned long flow_compare_t;
--
- /* I hear what you're saying, use memcmp. But memcmp cannot make
-- * important assumptions that we can here, such as alignment and
-- * constant size.
-+ * important assumptions that we can here, such as alignment.
- */
--static int flow_key_compare(const struct flowi *key1, const struct flowi *key2)
-+static int flow_key_compare(const struct flowi *key1, const struct flowi *key2,
-+ size_t keysize)
- {
- const flow_compare_t *k1, *k1_lim, *k2;
-- const int n_elem = sizeof(struct flowi) / sizeof(flow_compare_t);
--
-- BUILD_BUG_ON(sizeof(struct flowi) % sizeof(flow_compare_t));
-
- k1 = (const flow_compare_t *) key1;
-- k1_lim = k1 + n_elem;
-+ k1_lim = k1 + keysize;
-
- k2 = (const flow_compare_t *) key2;
-
-@@ -215,6 +212,7 @@ flow_cache_lookup(struct net *net, const
- struct flow_cache_entry *fle, *tfle;
- struct hlist_node *entry;
- struct flow_cache_object *flo;
-+ size_t keysize;
- unsigned int hash;
-
- local_bh_disable();
-@@ -222,6 +220,11 @@ flow_cache_lookup(struct net *net, const
-
- fle = NULL;
- flo = NULL;
-+
-+ keysize = flow_key_size(family);
-+ if (!keysize)
-+ goto nocache;
-+
- /* Packet really early in init? Making flow_cache_init a
- * pre-smp initcall would solve this. --RR */
- if (!fcp->hash_table)
-@@ -230,11 +233,11 @@ flow_cache_lookup(struct net *net, const
- if (fcp->hash_rnd_recalc)
- flow_new_hash_rnd(fc, fcp);
-
-- hash = flow_hash_code(fc, fcp, key);
-+ hash = flow_hash_code(fc, fcp, key, keysize);
- hlist_for_each_entry(tfle, entry, &fcp->hash_table[hash], u.hlist) {
- if (tfle->family == family &&
- tfle->dir == dir &&
-- flow_key_compare(key, &tfle->key) == 0) {
-+ flow_key_compare(key, &tfle->key, keysize) == 0) {
- fle = tfle;
- break;
- }
-@@ -248,7 +251,7 @@ flow_cache_lookup(struct net *net, const
- if (fle) {
- fle->family = family;
- fle->dir = dir;
-- memcpy(&fle->key, key, sizeof(*key));
-+ memcpy(&fle->key, key, keysize * sizeof(flow_compare_t));
- fle->object = NULL;
- hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
- fcp->hash_count++;