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-rw-r--r--package/kernel/mac80211/patches/319-cfg80211-add-function-for-802.3-conversion-with-sepa.patch186
1 files changed, 0 insertions, 186 deletions
diff --git a/package/kernel/mac80211/patches/319-cfg80211-add-function-for-802.3-conversion-with-sepa.patch b/package/kernel/mac80211/patches/319-cfg80211-add-function-for-802.3-conversion-with-sepa.patch
deleted file mode 100644
index b646ab36dd..0000000000
--- a/package/kernel/mac80211/patches/319-cfg80211-add-function-for-802.3-conversion-with-sepa.patch
+++ /dev/null
@@ -1,186 +0,0 @@
-From: Felix Fietkau <nbd@openwrt.org>
-Date: Tue, 2 Feb 2016 14:39:09 +0100
-Subject: [PATCH] cfg80211: add function for 802.3 conversion with separate
- output buffer
-
-Use skb_copy_bits in preparation for allowing fragmented skbs
-
-Signed-off-by: Felix Fietkau <nbd@openwrt.org>
-Signed-off-by: Johannes Berg <johannes.berg@intel.com>
----
-
---- a/net/wireless/util.c
-+++ b/net/wireless/util.c
-@@ -393,9 +393,9 @@ unsigned int ieee80211_get_hdrlen_from_s
- }
- EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-
--unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
-+static unsigned int __ieee80211_get_mesh_hdrlen(u8 flags)
- {
-- int ae = meshhdr->flags & MESH_FLAGS_AE;
-+ int ae = flags & MESH_FLAGS_AE;
- /* 802.11-2012, 8.2.4.7.3 */
- switch (ae) {
- default:
-@@ -407,21 +407,31 @@ unsigned int ieee80211_get_mesh_hdrlen(s
- return 18;
- }
- }
-+
-+unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
-+{
-+ return __ieee80211_get_mesh_hdrlen(meshhdr->flags);
-+}
- EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
-
--int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
-- enum nl80211_iftype iftype)
-+static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
-+ const u8 *addr, enum nl80211_iftype iftype)
- {
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-- u16 hdrlen, ethertype;
-- u8 *payload;
-- u8 dst[ETH_ALEN];
-- u8 src[ETH_ALEN] __aligned(2);
-+ struct {
-+ u8 hdr[ETH_ALEN] __aligned(2);
-+ __be16 proto;
-+ } payload;
-+ struct ethhdr tmp;
-+ u16 hdrlen;
-+ u8 mesh_flags = 0;
-
- if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
- return -1;
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
-+ if (skb->len < hdrlen + 8)
-+ return -1;
-
- /* convert IEEE 802.11 header + possible LLC headers into Ethernet
- * header
-@@ -432,8 +442,11 @@ int ieee80211_data_to_8023(struct sk_buf
- * 1 0 BSSID SA DA n/a
- * 1 1 RA TA DA SA
- */
-- memcpy(dst, ieee80211_get_DA(hdr), ETH_ALEN);
-- memcpy(src, ieee80211_get_SA(hdr), ETH_ALEN);
-+ memcpy(tmp.h_dest, ieee80211_get_DA(hdr), ETH_ALEN);
-+ memcpy(tmp.h_source, ieee80211_get_SA(hdr), ETH_ALEN);
-+
-+ if (iftype == NL80211_IFTYPE_MESH_POINT)
-+ skb_copy_bits(skb, hdrlen, &mesh_flags, 1);
-
- switch (hdr->frame_control &
- cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
-@@ -450,44 +463,31 @@ int ieee80211_data_to_8023(struct sk_buf
- iftype != NL80211_IFTYPE_STATION))
- return -1;
- if (iftype == NL80211_IFTYPE_MESH_POINT) {
-- struct ieee80211s_hdr *meshdr =
-- (struct ieee80211s_hdr *) (skb->data + hdrlen);
-- /* make sure meshdr->flags is on the linear part */
-- if (!pskb_may_pull(skb, hdrlen + 1))
-- return -1;
-- if (meshdr->flags & MESH_FLAGS_AE_A4)
-+ if (mesh_flags & MESH_FLAGS_AE_A4)
- return -1;
-- if (meshdr->flags & MESH_FLAGS_AE_A5_A6) {
-+ if (mesh_flags & MESH_FLAGS_AE_A5_A6) {
- skb_copy_bits(skb, hdrlen +
- offsetof(struct ieee80211s_hdr, eaddr1),
-- dst, ETH_ALEN);
-- skb_copy_bits(skb, hdrlen +
-- offsetof(struct ieee80211s_hdr, eaddr2),
-- src, ETH_ALEN);
-+ tmp.h_dest, 2 * ETH_ALEN);
- }
-- hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
-+ hdrlen += __ieee80211_get_mesh_hdrlen(mesh_flags);
- }
- break;
- case cpu_to_le16(IEEE80211_FCTL_FROMDS):
- if ((iftype != NL80211_IFTYPE_STATION &&
- iftype != NL80211_IFTYPE_P2P_CLIENT &&
- iftype != NL80211_IFTYPE_MESH_POINT) ||
-- (is_multicast_ether_addr(dst) &&
-- ether_addr_equal(src, addr)))
-+ (is_multicast_ether_addr(tmp.h_dest) &&
-+ ether_addr_equal(tmp.h_source, addr)))
- return -1;
- if (iftype == NL80211_IFTYPE_MESH_POINT) {
-- struct ieee80211s_hdr *meshdr =
-- (struct ieee80211s_hdr *) (skb->data + hdrlen);
-- /* make sure meshdr->flags is on the linear part */
-- if (!pskb_may_pull(skb, hdrlen + 1))
-- return -1;
-- if (meshdr->flags & MESH_FLAGS_AE_A5_A6)
-+ if (mesh_flags & MESH_FLAGS_AE_A5_A6)
- return -1;
-- if (meshdr->flags & MESH_FLAGS_AE_A4)
-+ if (mesh_flags & MESH_FLAGS_AE_A4)
- skb_copy_bits(skb, hdrlen +
- offsetof(struct ieee80211s_hdr, eaddr1),
-- src, ETH_ALEN);
-- hdrlen += ieee80211_get_mesh_hdrlen(meshdr);
-+ tmp.h_source, ETH_ALEN);
-+ hdrlen += __ieee80211_get_mesh_hdrlen(mesh_flags);
- }
- break;
- case cpu_to_le16(0):
-@@ -498,33 +498,33 @@ int ieee80211_data_to_8023(struct sk_buf
- break;
- }
-
-- if (!pskb_may_pull(skb, hdrlen + 8))
-- return -1;
--
-- payload = skb->data + hdrlen;
-- ethertype = (payload[6] << 8) | payload[7];
-+ skb_copy_bits(skb, hdrlen, &payload, sizeof(payload));
-+ tmp.h_proto = payload.proto;
-
-- if (likely((ether_addr_equal(payload, rfc1042_header) &&
-- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
-- ether_addr_equal(payload, bridge_tunnel_header))) {
-+ if (likely((ether_addr_equal(payload.hdr, rfc1042_header) &&
-+ tmp.h_proto != htons(ETH_P_AARP) &&
-+ tmp.h_proto != htons(ETH_P_IPX)) ||
-+ ether_addr_equal(payload.hdr, bridge_tunnel_header)))
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
-- skb_pull(skb, hdrlen + 6);
-- memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
-- memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
-- } else {
-- struct ethhdr *ehdr;
-- __be16 len;
-+ hdrlen += ETH_ALEN + 2;
-+ else
-+ tmp.h_proto = htons(skb->len);
-
-- skb_pull(skb, hdrlen);
-- len = htons(skb->len);
-+ pskb_pull(skb, hdrlen);
-+
-+ if (!ehdr)
- ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
-- memcpy(ehdr->h_dest, dst, ETH_ALEN);
-- memcpy(ehdr->h_source, src, ETH_ALEN);
-- ehdr->h_proto = len;
-- }
-+ memcpy(ehdr, &tmp, sizeof(tmp));
-+
- return 0;
- }
-+
-+int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
-+ enum nl80211_iftype iftype)
-+{
-+ return __ieee80211_data_to_8023(skb, NULL, addr, iftype);
-+}
- EXPORT_SYMBOL(ieee80211_data_to_8023);
-
- int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 07:29:11 +0000