diff options
| author | Felix Fietkau <nbd@nbd.name> | 2019-03-16 18:38:46 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-03-16 19:59:02 +0100 |
| commit | 1f68aac9d7b15013407afca581c5da09b45b9afa (patch) | |
| tree | ff06654767397b81106b4ff7423ef57ca1bcd6f4 /target | |
| parent | 6869ae2ab57c16b28404f2257c0ad9612cc3a0a2 (diff) | |
| download | upstream-1f68aac9d7b15013407afca581c5da09b45b9afa.tar.gz upstream-1f68aac9d7b15013407afca581c5da09b45b9afa.tar.bz2 upstream-1f68aac9d7b15013407afca581c5da09b45b9afa.zip | |
kernel: backport flow dissector batman-adv support
Improves performance on multicore systems handling batman-adv traffic
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target')
5 files changed, 2267 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.14/270-batman-adv-Let-packet.h-include-its-headers-directly.patch b/target/linux/generic/backport-4.14/270-batman-adv-Let-packet.h-include-its-headers-directly.patch new file mode 100644 index 0000000000..9b3dfc1fd3 --- /dev/null +++ b/target/linux/generic/backport-4.14/270-batman-adv-Let-packet.h-include-its-headers-directly.patch @@ -0,0 +1,36 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Thu, 21 Dec 2017 10:17:38 +0100 +Subject: [PATCH] batman-adv: Let packet.h include its headers directly + +The headers used by packet.h should also be included by it directly. main.h +is currently dealing with it in batman-adv, but this will no longer work +when this header is moved to include/uapi/linux/. + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +--- a/net/batman-adv/main.h ++++ b/net/batman-adv/main.h +@@ -184,10 +184,8 @@ enum batadv_uev_type { + + /* Kernel headers */ + +-#include <linux/bitops.h> /* for packet.h */ + #include <linux/compiler.h> + #include <linux/etherdevice.h> +-#include <linux/if_ether.h> /* for packet.h */ + #include <linux/if_vlan.h> + #include <linux/jiffies.h> + #include <linux/percpu.h> +--- a/net/batman-adv/packet.h ++++ b/net/batman-adv/packet.h +@@ -19,6 +19,8 @@ + #define _NET_BATMAN_ADV_PACKET_H_ + + #include <asm/byteorder.h> ++#include <linux/bitops.h> ++#include <linux/if_ether.h> + #include <linux/types.h> + + #define batadv_tp_is_error(n) ((u8)(n) > 127 ? 1 : 0) diff --git a/target/linux/generic/backport-4.14/271-batman-adv-Remove-usage-of-BIT-x-in-packet.h.patch b/target/linux/generic/backport-4.14/271-batman-adv-Remove-usage-of-BIT-x-in-packet.h.patch new file mode 100644 index 0000000000..5466d234d8 --- /dev/null +++ b/target/linux/generic/backport-4.14/271-batman-adv-Remove-usage-of-BIT-x-in-packet.h.patch @@ -0,0 +1,72 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Thu, 21 Dec 2017 10:17:39 +0100 +Subject: [PATCH] batman-adv: Remove usage of BIT(x) in packet.h + +The BIT(x) macro is no longer available for uapi headers because it is +defined outside of it (linux/bitops.h). The use of it must therefore be +avoided and replaced by an appropriate other representation. + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +--- a/net/batman-adv/packet.h ++++ b/net/batman-adv/packet.h +@@ -19,7 +19,6 @@ + #define _NET_BATMAN_ADV_PACKET_H_ + + #include <asm/byteorder.h> +-#include <linux/bitops.h> + #include <linux/if_ether.h> + #include <linux/types.h> + +@@ -85,9 +84,9 @@ enum batadv_subtype { + * one hop neighbor on the interface where it was originally received. + */ + enum batadv_iv_flags { +- BATADV_NOT_BEST_NEXT_HOP = BIT(0), +- BATADV_PRIMARIES_FIRST_HOP = BIT(1), +- BATADV_DIRECTLINK = BIT(2), ++ BATADV_NOT_BEST_NEXT_HOP = 1UL << 0, ++ BATADV_PRIMARIES_FIRST_HOP = 1UL << 1, ++ BATADV_DIRECTLINK = 1UL << 2, + }; + + /* ICMP message types */ +@@ -108,9 +107,9 @@ enum batadv_icmp_packettype { + * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets + */ + enum batadv_mcast_flags { +- BATADV_MCAST_WANT_ALL_UNSNOOPABLES = BIT(0), +- BATADV_MCAST_WANT_ALL_IPV4 = BIT(1), +- BATADV_MCAST_WANT_ALL_IPV6 = BIT(2), ++ BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0, ++ BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1, ++ BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2, + }; + + /* tt data subtypes */ +@@ -124,10 +123,10 @@ enum batadv_mcast_flags { + * @BATADV_TT_FULL_TABLE: contains full table to replace existing table + */ + enum batadv_tt_data_flags { +- BATADV_TT_OGM_DIFF = BIT(0), +- BATADV_TT_REQUEST = BIT(1), +- BATADV_TT_RESPONSE = BIT(2), +- BATADV_TT_FULL_TABLE = BIT(4), ++ BATADV_TT_OGM_DIFF = 1UL << 0, ++ BATADV_TT_REQUEST = 1UL << 1, ++ BATADV_TT_RESPONSE = 1UL << 2, ++ BATADV_TT_FULL_TABLE = 1UL << 4, + }; + + /** +@@ -135,7 +134,7 @@ enum batadv_tt_data_flags { + * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not + */ + enum batadv_vlan_flags { +- BATADV_VLAN_HAS_TAG = BIT(15), ++ BATADV_VLAN_HAS_TAG = 1UL << 15, + }; + + /* claim frame types for the bridge loop avoidance */ diff --git a/target/linux/generic/backport-4.14/272-batman-adv-Remove-kernel-fixed-width-types-in-packet.patch b/target/linux/generic/backport-4.14/272-batman-adv-Remove-kernel-fixed-width-types-in-packet.patch new file mode 100644 index 0000000000..c46a8f74c7 --- /dev/null +++ b/target/linux/generic/backport-4.14/272-batman-adv-Remove-kernel-fixed-width-types-in-packet.patch @@ -0,0 +1,386 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Thu, 21 Dec 2017 10:17:40 +0100 +Subject: [PATCH] batman-adv: Remove kernel fixed width types in packet.h + +The uapi headers use the __u8/__u16/... version of the fixed width types +instead of u8/u16/... The use of the latter must be avoided before +packet.h is copied to include/uapi/linux/. + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +--- a/net/batman-adv/packet.h ++++ b/net/batman-adv/packet.h +@@ -22,7 +22,7 @@ + #include <linux/if_ether.h> + #include <linux/types.h> + +-#define batadv_tp_is_error(n) ((u8)(n) > 127 ? 1 : 0) ++#define batadv_tp_is_error(n) ((__u8)(n) > 127 ? 1 : 0) + + /** + * enum batadv_packettype - types for batman-adv encapsulated packets +@@ -169,8 +169,8 @@ enum batadv_tvlv_type { + * transport the claim type and the group id + */ + struct batadv_bla_claim_dst { +- u8 magic[3]; /* FF:43:05 */ +- u8 type; /* bla_claimframe */ ++ __u8 magic[3]; /* FF:43:05 */ ++ __u8 type; /* bla_claimframe */ + __be16 group; /* group id */ + }; + +@@ -190,15 +190,15 @@ struct batadv_bla_claim_dst { + * @tvlv_len: length of tvlv data following the ogm header + */ + struct batadv_ogm_packet { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 flags; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 flags; + __be32 seqno; +- u8 orig[ETH_ALEN]; +- u8 prev_sender[ETH_ALEN]; +- u8 reserved; +- u8 tq; ++ __u8 orig[ETH_ALEN]; ++ __u8 prev_sender[ETH_ALEN]; ++ __u8 reserved; ++ __u8 tq; + __be16 tvlv_len; + /* __packed is not needed as the struct size is divisible by 4, + * and the largest data type in this struct has a size of 4. +@@ -219,12 +219,12 @@ struct batadv_ogm_packet { + * @throughput: the currently flooded path throughput + */ + struct batadv_ogm2_packet { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 flags; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 flags; + __be32 seqno; +- u8 orig[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; + __be16 tvlv_len; + __be32 throughput; + /* __packed is not needed as the struct size is divisible by 4, +@@ -243,9 +243,9 @@ struct batadv_ogm2_packet { + * @elp_interval: currently used ELP sending interval in ms + */ + struct batadv_elp_packet { +- u8 packet_type; +- u8 version; +- u8 orig[ETH_ALEN]; ++ __u8 packet_type; ++ __u8 version; ++ __u8 orig[ETH_ALEN]; + __be32 seqno; + __be32 elp_interval; + }; +@@ -268,14 +268,14 @@ struct batadv_elp_packet { + * members are padded the same way as they are in real packets. + */ + struct batadv_icmp_header { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 msg_type; /* see ICMP message types above */ +- u8 dst[ETH_ALEN]; +- u8 orig[ETH_ALEN]; +- u8 uid; +- u8 align[3]; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 align[3]; + }; + + /** +@@ -291,14 +291,14 @@ struct batadv_icmp_header { + * @seqno: ICMP sequence number + */ + struct batadv_icmp_packet { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 msg_type; /* see ICMP message types above */ +- u8 dst[ETH_ALEN]; +- u8 orig[ETH_ALEN]; +- u8 uid; +- u8 reserved; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 reserved; + __be16 seqno; + }; + +@@ -320,15 +320,15 @@ struct batadv_icmp_packet { + * store it using network order + */ + struct batadv_icmp_tp_packet { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 msg_type; /* see ICMP message types above */ +- u8 dst[ETH_ALEN]; +- u8 orig[ETH_ALEN]; +- u8 uid; +- u8 subtype; +- u8 session[2]; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 subtype; ++ __u8 session[2]; + __be32 seqno; + __be32 timestamp; + }; +@@ -359,16 +359,16 @@ enum batadv_icmp_tp_subtype { + * @rr: route record array + */ + struct batadv_icmp_packet_rr { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 msg_type; /* see ICMP message types above */ +- u8 dst[ETH_ALEN]; +- u8 orig[ETH_ALEN]; +- u8 uid; +- u8 rr_cur; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 rr_cur; + __be16 seqno; +- u8 rr[BATADV_RR_LEN][ETH_ALEN]; ++ __u8 rr[BATADV_RR_LEN][ETH_ALEN]; + }; + + #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) +@@ -394,11 +394,11 @@ struct batadv_icmp_packet_rr { + * @dest: originator destination of the unicast packet + */ + struct batadv_unicast_packet { +- u8 packet_type; +- u8 version; +- u8 ttl; +- u8 ttvn; /* destination translation table version number */ +- u8 dest[ETH_ALEN]; ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 ttvn; /* destination translation table version number */ ++ __u8 dest[ETH_ALEN]; + /* "4 bytes boundary + 2 bytes" long to make the payload after the + * following ethernet header again 4 bytes boundary aligned + */ +@@ -413,9 +413,9 @@ struct batadv_unicast_packet { + */ + struct batadv_unicast_4addr_packet { + struct batadv_unicast_packet u; +- u8 src[ETH_ALEN]; +- u8 subtype; +- u8 reserved; ++ __u8 src[ETH_ALEN]; ++ __u8 subtype; ++ __u8 reserved; + /* "4 bytes boundary + 2 bytes" long to make the payload after the + * following ethernet header again 4 bytes boundary aligned + */ +@@ -435,22 +435,22 @@ struct batadv_unicast_4addr_packet { + * @total_size: size of the merged packet + */ + struct batadv_frag_packet { +- u8 packet_type; +- u8 version; /* batman version field */ +- u8 ttl; ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; + #if defined(__BIG_ENDIAN_BITFIELD) +- u8 no:4; +- u8 priority:3; +- u8 reserved:1; ++ __u8 no:4; ++ __u8 priority:3; ++ __u8 reserved:1; + #elif defined(__LITTLE_ENDIAN_BITFIELD) +- u8 reserved:1; +- u8 priority:3; +- u8 no:4; ++ __u8 reserved:1; ++ __u8 priority:3; ++ __u8 no:4; + #else + #error "unknown bitfield endianness" + #endif +- u8 dest[ETH_ALEN]; +- u8 orig[ETH_ALEN]; ++ __u8 dest[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; + __be16 seqno; + __be16 total_size; + }; +@@ -465,12 +465,12 @@ struct batadv_frag_packet { + * @orig: originator of the broadcast packet + */ + struct batadv_bcast_packet { +- u8 packet_type; +- u8 version; /* batman version field */ +- u8 ttl; +- u8 reserved; ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 reserved; + __be32 seqno; +- u8 orig[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; + /* "4 bytes boundary + 2 bytes" long to make the payload after the + * following ethernet header again 4 bytes boundary aligned + */ +@@ -494,19 +494,19 @@ struct batadv_bcast_packet { + * @coded_len: length of network coded part of the payload + */ + struct batadv_coded_packet { +- u8 packet_type; +- u8 version; /* batman version field */ +- u8 ttl; +- u8 first_ttvn; +- /* u8 first_dest[ETH_ALEN]; - saved in mac header destination */ +- u8 first_source[ETH_ALEN]; +- u8 first_orig_dest[ETH_ALEN]; ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 first_ttvn; ++ /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */ ++ __u8 first_source[ETH_ALEN]; ++ __u8 first_orig_dest[ETH_ALEN]; + __be32 first_crc; +- u8 second_ttl; +- u8 second_ttvn; +- u8 second_dest[ETH_ALEN]; +- u8 second_source[ETH_ALEN]; +- u8 second_orig_dest[ETH_ALEN]; ++ __u8 second_ttl; ++ __u8 second_ttvn; ++ __u8 second_dest[ETH_ALEN]; ++ __u8 second_source[ETH_ALEN]; ++ __u8 second_orig_dest[ETH_ALEN]; + __be32 second_crc; + __be16 coded_len; + }; +@@ -525,14 +525,14 @@ struct batadv_coded_packet { + * @align: 2 bytes to align the header to a 4 byte boundary + */ + struct batadv_unicast_tvlv_packet { +- u8 packet_type; +- u8 version; /* batman version field */ +- u8 ttl; +- u8 reserved; +- u8 dst[ETH_ALEN]; +- u8 src[ETH_ALEN]; ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 reserved; ++ __u8 dst[ETH_ALEN]; ++ __u8 src[ETH_ALEN]; + __be16 tvlv_len; +- u16 align; ++ __u16 align; + }; + + /** +@@ -542,8 +542,8 @@ struct batadv_unicast_tvlv_packet { + * @len: tvlv container length + */ + struct batadv_tvlv_hdr { +- u8 type; +- u8 version; ++ __u8 type; ++ __u8 version; + __be16 len; + }; + +@@ -566,8 +566,8 @@ struct batadv_tvlv_gateway_data { + * one batadv_tvlv_tt_vlan_data object per announced vlan + */ + struct batadv_tvlv_tt_data { +- u8 flags; +- u8 ttvn; ++ __u8 flags; ++ __u8 ttvn; + __be16 num_vlan; + }; + +@@ -581,7 +581,7 @@ struct batadv_tvlv_tt_data { + struct batadv_tvlv_tt_vlan_data { + __be32 crc; + __be16 vid; +- u16 reserved; ++ __u16 reserved; + }; + + /** +@@ -593,9 +593,9 @@ struct batadv_tvlv_tt_vlan_data { + * @vid: VLAN identifier + */ + struct batadv_tvlv_tt_change { +- u8 flags; +- u8 reserved[3]; +- u8 addr[ETH_ALEN]; ++ __u8 flags; ++ __u8 reserved[3]; ++ __u8 addr[ETH_ALEN]; + __be16 vid; + }; + +@@ -605,7 +605,7 @@ struct batadv_tvlv_tt_change { + * @vid: VLAN identifier + */ + struct batadv_tvlv_roam_adv { +- u8 client[ETH_ALEN]; ++ __u8 client[ETH_ALEN]; + __be16 vid; + }; + +@@ -615,8 +615,8 @@ struct batadv_tvlv_roam_adv { + * @reserved: reserved field + */ + struct batadv_tvlv_mcast_data { +- u8 flags; +- u8 reserved[3]; ++ __u8 flags; ++ __u8 reserved[3]; + }; + + #endif /* _NET_BATMAN_ADV_PACKET_H_ */ diff --git a/target/linux/generic/backport-4.14/273-batman-adv-Convert-packet.h-to-uapi-header.patch b/target/linux/generic/backport-4.14/273-batman-adv-Convert-packet.h-to-uapi-header.patch new file mode 100644 index 0000000000..0435803f51 --- /dev/null +++ b/target/linux/generic/backport-4.14/273-batman-adv-Convert-packet.h-to-uapi-header.patch @@ -0,0 +1,1665 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Thu, 21 Dec 2017 10:17:41 +0100 +Subject: [PATCH] batman-adv: Convert packet.h to uapi header + +The header file is used by different userspace programs to inject packets +or to decode sniffed packets. It should therefore be available to them as +userspace header. + +Also other components in the kernel (like the flow dissector) require +access to the packet definitions to be able to decode ETH_P_BATMAN ethernet +packets. + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + rename net/batman-adv/packet.h => include/uapi/linux/batadv_packet.h (99%) + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -2551,6 +2551,7 @@ S: Maintained + F: Documentation/ABI/testing/sysfs-class-net-batman-adv + F: Documentation/ABI/testing/sysfs-class-net-mesh + F: Documentation/networking/batman-adv.rst ++F: include/uapi/linux/batadv_packet.h + F: include/uapi/linux/batman_adv.h + F: net/batman-adv/ + +--- a/net/batman-adv/bat_iv_ogm.c ++++ b/net/batman-adv/bat_iv_ogm.c +@@ -51,6 +51,7 @@ + #include <linux/workqueue.h> + #include <net/genetlink.h> + #include <net/netlink.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "bat_algo.h" +@@ -62,7 +63,6 @@ + #include "netlink.h" + #include "network-coding.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + #include "translation-table.h" +--- a/net/batman-adv/bat_v.c ++++ b/net/batman-adv/bat_v.c +@@ -37,6 +37,7 @@ + #include <linux/workqueue.h> + #include <net/genetlink.h> + #include <net/netlink.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "bat_algo.h" +@@ -49,7 +50,6 @@ + #include "log.h" + #include "netlink.h" + #include "originator.h" +-#include "packet.h" + + struct sk_buff; + +--- a/net/batman-adv/bat_v_elp.c ++++ b/net/batman-adv/bat_v_elp.c +@@ -41,13 +41,13 @@ + #include <linux/types.h> + #include <linux/workqueue.h> + #include <net/cfg80211.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bat_algo.h" + #include "bat_v_ogm.h" + #include "hard-interface.h" + #include "log.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + +--- a/net/batman-adv/bat_v_ogm.c ++++ b/net/batman-adv/bat_v_ogm.c +@@ -38,13 +38,13 @@ + #include <linux/string.h> + #include <linux/types.h> + #include <linux/workqueue.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bat_algo.h" + #include "hard-interface.h" + #include "hash.h" + #include "log.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + #include "translation-table.h" +--- a/net/batman-adv/bridge_loop_avoidance.c ++++ b/net/batman-adv/bridge_loop_avoidance.c +@@ -49,6 +49,7 @@ + #include <net/genetlink.h> + #include <net/netlink.h> + #include <net/sock.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "hard-interface.h" +@@ -56,7 +57,6 @@ + #include "log.h" + #include "netlink.h" + #include "originator.h" +-#include "packet.h" + #include "soft-interface.h" + #include "sysfs.h" + #include "translation-table.h" +--- a/net/batman-adv/distributed-arp-table.h ++++ b/net/batman-adv/distributed-arp-table.h +@@ -23,9 +23,9 @@ + #include <linux/compiler.h> + #include <linux/netdevice.h> + #include <linux/types.h> ++#include <uapi/linux/batadv_packet.h> + + #include "originator.h" +-#include "packet.h" + + struct seq_file; + struct sk_buff; +--- a/net/batman-adv/fragmentation.c ++++ b/net/batman-adv/fragmentation.c +@@ -32,10 +32,10 @@ + #include <linux/slab.h> + #include <linux/spinlock.h> + #include <linux/string.h> ++#include <uapi/linux/batadv_packet.h> + + #include "hard-interface.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + #include "soft-interface.h" +--- a/net/batman-adv/gateway_client.c ++++ b/net/batman-adv/gateway_client.c +@@ -43,6 +43,7 @@ + #include <linux/stddef.h> + #include <linux/udp.h> + #include <net/sock.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "gateway_common.h" +@@ -50,7 +51,6 @@ + #include "log.h" + #include "netlink.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "soft-interface.h" + #include "sysfs.h" +--- a/net/batman-adv/gateway_common.c ++++ b/net/batman-adv/gateway_common.c +@@ -26,10 +26,10 @@ + #include <linux/netdevice.h> + #include <linux/stddef.h> + #include <linux/string.h> ++#include <uapi/linux/batadv_packet.h> + + #include "gateway_client.h" + #include "log.h" +-#include "packet.h" + #include "tvlv.h" + + /** +--- a/net/batman-adv/hard-interface.c ++++ b/net/batman-adv/hard-interface.c +@@ -36,6 +36,7 @@ + #include <linux/spinlock.h> + #include <net/net_namespace.h> + #include <net/rtnetlink.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bat_v.h" + #include "bridge_loop_avoidance.h" +@@ -44,7 +45,6 @@ + #include "gateway_client.h" + #include "log.h" + #include "originator.h" +-#include "packet.h" + #include "send.h" + #include "soft-interface.h" + #include "sysfs.h" +--- a/net/batman-adv/icmp_socket.c ++++ b/net/batman-adv/icmp_socket.c +@@ -42,11 +42,11 @@ + #include <linux/string.h> + #include <linux/uaccess.h> + #include <linux/wait.h> ++#include <uapi/linux/batadv_packet.h> + + #include "hard-interface.h" + #include "log.h" + #include "originator.h" +-#include "packet.h" + #include "send.h" + + static struct batadv_socket_client *batadv_socket_client_hash[256]; +--- a/net/batman-adv/main.c ++++ b/net/batman-adv/main.c +@@ -45,6 +45,7 @@ + #include <linux/workqueue.h> + #include <net/dsfield.h> + #include <net/rtnetlink.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "bat_algo.h" +@@ -62,7 +63,6 @@ + #include "netlink.h" + #include "network-coding.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + #include "soft-interface.h" +--- a/net/batman-adv/main.h ++++ b/net/batman-adv/main.h +@@ -190,8 +190,8 @@ enum batadv_uev_type { + #include <linux/jiffies.h> + #include <linux/percpu.h> + #include <linux/types.h> ++#include <uapi/linux/batadv_packet.h> + +-#include "packet.h" + #include "types.h" + + struct net_device; +--- a/net/batman-adv/multicast.c ++++ b/net/batman-adv/multicast.c +@@ -54,11 +54,11 @@ + #include <net/if_inet6.h> + #include <net/ip.h> + #include <net/ipv6.h> ++#include <uapi/linux/batadv_packet.h> + + #include "hard-interface.h" + #include "hash.h" + #include "log.h" +-#include "packet.h" + #include "translation-table.h" + #include "tvlv.h" + +--- a/net/batman-adv/netlink.c ++++ b/net/batman-adv/netlink.c +@@ -39,6 +39,7 @@ + #include <net/genetlink.h> + #include <net/netlink.h> + #include <net/sock.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "bat_algo.h" +@@ -46,7 +47,6 @@ + #include "gateway_client.h" + #include "hard-interface.h" + #include "originator.h" +-#include "packet.h" + #include "soft-interface.h" + #include "tp_meter.h" + #include "translation-table.h" +--- a/net/batman-adv/network-coding.c ++++ b/net/batman-adv/network-coding.c +@@ -47,12 +47,12 @@ + #include <linux/stddef.h> + #include <linux/string.h> + #include <linux/workqueue.h> ++#include <uapi/linux/batadv_packet.h> + + #include "hard-interface.h" + #include "hash.h" + #include "log.h" + #include "originator.h" +-#include "packet.h" + #include "routing.h" + #include "send.h" + #include "tvlv.h" +--- a/net/batman-adv/packet.h ++++ /dev/null +@@ -1,622 +0,0 @@ +-/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: +- * +- * Marek Lindner, Simon Wunderlich +- * +- * This program is free software; you can redistribute it and/or +- * modify it under the terms of version 2 of the GNU General Public +- * License as published by the Free Software Foundation. +- * +- * This program is distributed in the hope that it will be useful, but +- * WITHOUT ANY WARRANTY; without even the implied warranty of +- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +- * General Public License for more details. +- * +- * You should have received a copy of the GNU General Public License +- * along with this program; if not, see <http://www.gnu.org/licenses/>. +- */ +- +-#ifndef _NET_BATMAN_ADV_PACKET_H_ +-#define _NET_BATMAN_ADV_PACKET_H_ +- +-#include <asm/byteorder.h> +-#include <linux/if_ether.h> +-#include <linux/types.h> +- +-#define batadv_tp_is_error(n) ((__u8)(n) > 127 ? 1 : 0) +- +-/** +- * enum batadv_packettype - types for batman-adv encapsulated packets +- * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV +- * @BATADV_BCAST: broadcast packets carrying broadcast payload +- * @BATADV_CODED: network coded packets +- * @BATADV_ELP: echo location packets for B.A.T.M.A.N. V +- * @BATADV_OGM2: originator messages for B.A.T.M.A.N. V +- * +- * @BATADV_UNICAST: unicast packets carrying unicast payload traffic +- * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original +- * payload packet +- * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of +- * the sender +- * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute +- * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers +- */ +-enum batadv_packettype { +- /* 0x00 - 0x3f: local packets or special rules for handling */ +- BATADV_IV_OGM = 0x00, +- BATADV_BCAST = 0x01, +- BATADV_CODED = 0x02, +- BATADV_ELP = 0x03, +- BATADV_OGM2 = 0x04, +- /* 0x40 - 0x7f: unicast */ +-#define BATADV_UNICAST_MIN 0x40 +- BATADV_UNICAST = 0x40, +- BATADV_UNICAST_FRAG = 0x41, +- BATADV_UNICAST_4ADDR = 0x42, +- BATADV_ICMP = 0x43, +- BATADV_UNICAST_TVLV = 0x44, +-#define BATADV_UNICAST_MAX 0x7f +- /* 0x80 - 0xff: reserved */ +-}; +- +-/** +- * enum batadv_subtype - packet subtype for unicast4addr +- * @BATADV_P_DATA: user payload +- * @BATADV_P_DAT_DHT_GET: DHT request message +- * @BATADV_P_DAT_DHT_PUT: DHT store message +- * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT +- */ +-enum batadv_subtype { +- BATADV_P_DATA = 0x01, +- BATADV_P_DAT_DHT_GET = 0x02, +- BATADV_P_DAT_DHT_PUT = 0x03, +- BATADV_P_DAT_CACHE_REPLY = 0x04, +-}; +- +-/* this file is included by batctl which needs these defines */ +-#define BATADV_COMPAT_VERSION 15 +- +-/** +- * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets +- * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was +- * previously received from someone else than the best neighbor. +- * @BATADV_PRIMARIES_FIRST_HOP: flag unused. +- * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a +- * one hop neighbor on the interface where it was originally received. +- */ +-enum batadv_iv_flags { +- BATADV_NOT_BEST_NEXT_HOP = 1UL << 0, +- BATADV_PRIMARIES_FIRST_HOP = 1UL << 1, +- BATADV_DIRECTLINK = 1UL << 2, +-}; +- +-/* ICMP message types */ +-enum batadv_icmp_packettype { +- BATADV_ECHO_REPLY = 0, +- BATADV_DESTINATION_UNREACHABLE = 3, +- BATADV_ECHO_REQUEST = 8, +- BATADV_TTL_EXCEEDED = 11, +- BATADV_PARAMETER_PROBLEM = 12, +- BATADV_TP = 15, +-}; +- +-/** +- * enum batadv_mcast_flags - flags for multicast capabilities and settings +- * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for +- * 224.0.0.0/24 or ff02::1 +- * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets +- * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets +- */ +-enum batadv_mcast_flags { +- BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0, +- BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1, +- BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2, +-}; +- +-/* tt data subtypes */ +-#define BATADV_TT_DATA_TYPE_MASK 0x0F +- +-/** +- * enum batadv_tt_data_flags - flags for tt data tvlv +- * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM +- * @BATADV_TT_REQUEST: TT request message +- * @BATADV_TT_RESPONSE: TT response message +- * @BATADV_TT_FULL_TABLE: contains full table to replace existing table +- */ +-enum batadv_tt_data_flags { +- BATADV_TT_OGM_DIFF = 1UL << 0, +- BATADV_TT_REQUEST = 1UL << 1, +- BATADV_TT_RESPONSE = 1UL << 2, +- BATADV_TT_FULL_TABLE = 1UL << 4, +-}; +- +-/** +- * enum batadv_vlan_flags - flags for the four MSB of any vlan ID field +- * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not +- */ +-enum batadv_vlan_flags { +- BATADV_VLAN_HAS_TAG = 1UL << 15, +-}; +- +-/* claim frame types for the bridge loop avoidance */ +-enum batadv_bla_claimframe { +- BATADV_CLAIM_TYPE_CLAIM = 0x00, +- BATADV_CLAIM_TYPE_UNCLAIM = 0x01, +- BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, +- BATADV_CLAIM_TYPE_REQUEST = 0x03, +- BATADV_CLAIM_TYPE_LOOPDETECT = 0x04, +-}; +- +-/** +- * enum batadv_tvlv_type - tvlv type definitions +- * @BATADV_TVLV_GW: gateway tvlv +- * @BATADV_TVLV_DAT: distributed arp table tvlv +- * @BATADV_TVLV_NC: network coding tvlv +- * @BATADV_TVLV_TT: translation table tvlv +- * @BATADV_TVLV_ROAM: roaming advertisement tvlv +- * @BATADV_TVLV_MCAST: multicast capability tvlv +- */ +-enum batadv_tvlv_type { +- BATADV_TVLV_GW = 0x01, +- BATADV_TVLV_DAT = 0x02, +- BATADV_TVLV_NC = 0x03, +- BATADV_TVLV_TT = 0x04, +- BATADV_TVLV_ROAM = 0x05, +- BATADV_TVLV_MCAST = 0x06, +-}; +- +-#pragma pack(2) +-/* the destination hardware field in the ARP frame is used to +- * transport the claim type and the group id +- */ +-struct batadv_bla_claim_dst { +- __u8 magic[3]; /* FF:43:05 */ +- __u8 type; /* bla_claimframe */ +- __be16 group; /* group id */ +-}; +- +-#pragma pack() +- +-/** +- * struct batadv_ogm_packet - ogm (routing protocol) packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @flags: contains routing relevant flags - see enum batadv_iv_flags +- * @seqno: sequence identification +- * @orig: address of the source node +- * @prev_sender: address of the previous sender +- * @reserved: reserved byte for alignment +- * @tq: transmission quality +- * @tvlv_len: length of tvlv data following the ogm header +- */ +-struct batadv_ogm_packet { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 flags; +- __be32 seqno; +- __u8 orig[ETH_ALEN]; +- __u8 prev_sender[ETH_ALEN]; +- __u8 reserved; +- __u8 tq; +- __be16 tvlv_len; +- /* __packed is not needed as the struct size is divisible by 4, +- * and the largest data type in this struct has a size of 4. +- */ +-}; +- +-#define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) +- +-/** +- * struct batadv_ogm2_packet - ogm2 (routing protocol) packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the general header +- * @ttl: time to live for this packet, part of the general header +- * @flags: reseved for routing relevant flags - currently always 0 +- * @seqno: sequence number +- * @orig: originator mac address +- * @tvlv_len: length of the appended tvlv buffer (in bytes) +- * @throughput: the currently flooded path throughput +- */ +-struct batadv_ogm2_packet { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 flags; +- __be32 seqno; +- __u8 orig[ETH_ALEN]; +- __be16 tvlv_len; +- __be32 throughput; +- /* __packed is not needed as the struct size is divisible by 4, +- * and the largest data type in this struct has a size of 4. +- */ +-}; +- +-#define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet) +- +-/** +- * struct batadv_elp_packet - elp (neighbor discovery) packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @orig: originator mac address +- * @seqno: sequence number +- * @elp_interval: currently used ELP sending interval in ms +- */ +-struct batadv_elp_packet { +- __u8 packet_type; +- __u8 version; +- __u8 orig[ETH_ALEN]; +- __be32 seqno; +- __be32 elp_interval; +-}; +- +-#define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet) +- +-/** +- * struct batadv_icmp_header - common members among all the ICMP packets +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @msg_type: ICMP packet type +- * @dst: address of the destination node +- * @orig: address of the source node +- * @uid: local ICMP socket identifier +- * @align: not used - useful for alignment purposes only +- * +- * This structure is used for ICMP packets parsing only and it is never sent +- * over the wire. The alignment field at the end is there to ensure that +- * members are padded the same way as they are in real packets. +- */ +-struct batadv_icmp_header { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 msg_type; /* see ICMP message types above */ +- __u8 dst[ETH_ALEN]; +- __u8 orig[ETH_ALEN]; +- __u8 uid; +- __u8 align[3]; +-}; +- +-/** +- * struct batadv_icmp_packet - ICMP packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @msg_type: ICMP packet type +- * @dst: address of the destination node +- * @orig: address of the source node +- * @uid: local ICMP socket identifier +- * @reserved: not used - useful for alignment +- * @seqno: ICMP sequence number +- */ +-struct batadv_icmp_packet { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 msg_type; /* see ICMP message types above */ +- __u8 dst[ETH_ALEN]; +- __u8 orig[ETH_ALEN]; +- __u8 uid; +- __u8 reserved; +- __be16 seqno; +-}; +- +-/** +- * struct batadv_icmp_tp_packet - ICMP TP Meter packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @msg_type: ICMP packet type +- * @dst: address of the destination node +- * @orig: address of the source node +- * @uid: local ICMP socket identifier +- * @subtype: TP packet subtype (see batadv_icmp_tp_subtype) +- * @session: TP session identifier +- * @seqno: the TP sequence number +- * @timestamp: time when the packet has been sent. This value is filled in a +- * TP_MSG and echoed back in the next TP_ACK so that the sender can compute the +- * RTT. Since it is read only by the host which wrote it, there is no need to +- * store it using network order +- */ +-struct batadv_icmp_tp_packet { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 msg_type; /* see ICMP message types above */ +- __u8 dst[ETH_ALEN]; +- __u8 orig[ETH_ALEN]; +- __u8 uid; +- __u8 subtype; +- __u8 session[2]; +- __be32 seqno; +- __be32 timestamp; +-}; +- +-/** +- * enum batadv_icmp_tp_subtype - ICMP TP Meter packet subtypes +- * @BATADV_TP_MSG: Msg from sender to receiver +- * @BATADV_TP_ACK: acknowledgment from receiver to sender +- */ +-enum batadv_icmp_tp_subtype { +- BATADV_TP_MSG = 0, +- BATADV_TP_ACK, +-}; +- +-#define BATADV_RR_LEN 16 +- +-/** +- * struct batadv_icmp_packet_rr - ICMP RouteRecord packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @msg_type: ICMP packet type +- * @dst: address of the destination node +- * @orig: address of the source node +- * @uid: local ICMP socket identifier +- * @rr_cur: number of entries the rr array +- * @seqno: ICMP sequence number +- * @rr: route record array +- */ +-struct batadv_icmp_packet_rr { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 msg_type; /* see ICMP message types above */ +- __u8 dst[ETH_ALEN]; +- __u8 orig[ETH_ALEN]; +- __u8 uid; +- __u8 rr_cur; +- __be16 seqno; +- __u8 rr[BATADV_RR_LEN][ETH_ALEN]; +-}; +- +-#define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) +- +-/* All packet headers in front of an ethernet header have to be completely +- * divisible by 2 but not by 4 to make the payload after the ethernet +- * header again 4 bytes boundary aligned. +- * +- * A packing of 2 is necessary to avoid extra padding at the end of the struct +- * caused by a structure member which is larger than two bytes. Otherwise +- * the structure would not fulfill the previously mentioned rule to avoid the +- * misalignment of the payload after the ethernet header. It may also lead to +- * leakage of information when the padding it not initialized before sending. +- */ +-#pragma pack(2) +- +-/** +- * struct batadv_unicast_packet - unicast packet for network payload +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @ttvn: translation table version number +- * @dest: originator destination of the unicast packet +- */ +-struct batadv_unicast_packet { +- __u8 packet_type; +- __u8 version; +- __u8 ttl; +- __u8 ttvn; /* destination translation table version number */ +- __u8 dest[ETH_ALEN]; +- /* "4 bytes boundary + 2 bytes" long to make the payload after the +- * following ethernet header again 4 bytes boundary aligned +- */ +-}; +- +-/** +- * struct batadv_unicast_4addr_packet - extended unicast packet +- * @u: common unicast packet header +- * @src: address of the source +- * @subtype: packet subtype +- * @reserved: reserved byte for alignment +- */ +-struct batadv_unicast_4addr_packet { +- struct batadv_unicast_packet u; +- __u8 src[ETH_ALEN]; +- __u8 subtype; +- __u8 reserved; +- /* "4 bytes boundary + 2 bytes" long to make the payload after the +- * following ethernet header again 4 bytes boundary aligned +- */ +-}; +- +-/** +- * struct batadv_frag_packet - fragmented packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @dest: final destination used when routing fragments +- * @orig: originator of the fragment used when merging the packet +- * @no: fragment number within this sequence +- * @priority: priority of frame, from ToS IP precedence or 802.1p +- * @reserved: reserved byte for alignment +- * @seqno: sequence identification +- * @total_size: size of the merged packet +- */ +-struct batadv_frag_packet { +- __u8 packet_type; +- __u8 version; /* batman version field */ +- __u8 ttl; +-#if defined(__BIG_ENDIAN_BITFIELD) +- __u8 no:4; +- __u8 priority:3; +- __u8 reserved:1; +-#elif defined(__LITTLE_ENDIAN_BITFIELD) +- __u8 reserved:1; +- __u8 priority:3; +- __u8 no:4; +-#else +-#error "unknown bitfield endianness" +-#endif +- __u8 dest[ETH_ALEN]; +- __u8 orig[ETH_ALEN]; +- __be16 seqno; +- __be16 total_size; +-}; +- +-/** +- * struct batadv_bcast_packet - broadcast packet for network payload +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @reserved: reserved byte for alignment +- * @seqno: sequence identification +- * @orig: originator of the broadcast packet +- */ +-struct batadv_bcast_packet { +- __u8 packet_type; +- __u8 version; /* batman version field */ +- __u8 ttl; +- __u8 reserved; +- __be32 seqno; +- __u8 orig[ETH_ALEN]; +- /* "4 bytes boundary + 2 bytes" long to make the payload after the +- * following ethernet header again 4 bytes boundary aligned +- */ +-}; +- +-/** +- * struct batadv_coded_packet - network coded packet +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @first_source: original source of first included packet +- * @first_orig_dest: original destinal of first included packet +- * @first_crc: checksum of first included packet +- * @first_ttvn: tt-version number of first included packet +- * @second_ttl: ttl of second packet +- * @second_dest: second receiver of this coded packet +- * @second_source: original source of second included packet +- * @second_orig_dest: original destination of second included packet +- * @second_crc: checksum of second included packet +- * @second_ttvn: tt version number of second included packet +- * @coded_len: length of network coded part of the payload +- */ +-struct batadv_coded_packet { +- __u8 packet_type; +- __u8 version; /* batman version field */ +- __u8 ttl; +- __u8 first_ttvn; +- /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */ +- __u8 first_source[ETH_ALEN]; +- __u8 first_orig_dest[ETH_ALEN]; +- __be32 first_crc; +- __u8 second_ttl; +- __u8 second_ttvn; +- __u8 second_dest[ETH_ALEN]; +- __u8 second_source[ETH_ALEN]; +- __u8 second_orig_dest[ETH_ALEN]; +- __be32 second_crc; +- __be16 coded_len; +-}; +- +-#pragma pack() +- +-/** +- * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload +- * @packet_type: batman-adv packet type, part of the general header +- * @version: batman-adv protocol version, part of the genereal header +- * @ttl: time to live for this packet, part of the genereal header +- * @reserved: reserved field (for packet alignment) +- * @src: address of the source +- * @dst: address of the destination +- * @tvlv_len: length of tvlv data following the unicast tvlv header +- * @align: 2 bytes to align the header to a 4 byte boundary +- */ +-struct batadv_unicast_tvlv_packet { +- __u8 packet_type; +- __u8 version; /* batman version field */ +- __u8 ttl; +- __u8 reserved; +- __u8 dst[ETH_ALEN]; +- __u8 src[ETH_ALEN]; +- __be16 tvlv_len; +- __u16 align; +-}; +- +-/** +- * struct batadv_tvlv_hdr - base tvlv header struct +- * @type: tvlv container type (see batadv_tvlv_type) +- * @version: tvlv container version +- * @len: tvlv container length +- */ +-struct batadv_tvlv_hdr { +- __u8 type; +- __u8 version; +- __be16 len; +-}; +- +-/** +- * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv +- * container +- * @bandwidth_down: advertised uplink download bandwidth +- * @bandwidth_up: advertised uplink upload bandwidth +- */ +-struct batadv_tvlv_gateway_data { +- __be32 bandwidth_down; +- __be32 bandwidth_up; +-}; +- +-/** +- * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container +- * @flags: translation table flags (see batadv_tt_data_flags) +- * @ttvn: translation table version number +- * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by +- * one batadv_tvlv_tt_vlan_data object per announced vlan +- */ +-struct batadv_tvlv_tt_data { +- __u8 flags; +- __u8 ttvn; +- __be16 num_vlan; +-}; +- +-/** +- * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through +- * the tt tvlv container +- * @crc: crc32 checksum of the entries belonging to this vlan +- * @vid: vlan identifier +- * @reserved: unused, useful for alignment purposes +- */ +-struct batadv_tvlv_tt_vlan_data { +- __be32 crc; +- __be16 vid; +- __u16 reserved; +-}; +- +-/** +- * struct batadv_tvlv_tt_change - translation table diff data +- * @flags: status indicators concerning the non-mesh client (see +- * batadv_tt_client_flags) +- * @reserved: reserved field - useful for alignment purposes only +- * @addr: mac address of non-mesh client that triggered this tt change +- * @vid: VLAN identifier +- */ +-struct batadv_tvlv_tt_change { +- __u8 flags; +- __u8 reserved[3]; +- __u8 addr[ETH_ALEN]; +- __be16 vid; +-}; +- +-/** +- * struct batadv_tvlv_roam_adv - roaming advertisement +- * @client: mac address of roaming client +- * @vid: VLAN identifier +- */ +-struct batadv_tvlv_roam_adv { +- __u8 client[ETH_ALEN]; +- __be16 vid; +-}; +- +-/** +- * struct batadv_tvlv_mcast_data - payload of a multicast tvlv +- * @flags: multicast flags announced by the orig node +- * @reserved: reserved field +- */ +-struct batadv_tvlv_mcast_data { +- __u8 flags; +- __u8 reserved[3]; +-}; +- +-#endif /* _NET_BATMAN_ADV_PACKET_H_ */ +--- a/net/batman-adv/routing.c ++++ b/net/batman-adv/routing.c +@@ -33,6 +33,7 @@ + #include <linux/skbuff.h> + #include <linux/spinlock.h> + #include <linux/stddef.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bitarray.h" + #include "bridge_loop_avoidance.h" +@@ -43,7 +44,6 @@ + #include "log.h" + #include "network-coding.h" + #include "originator.h" +-#include "packet.h" + #include "send.h" + #include "soft-interface.h" + #include "tp_meter.h" +--- a/net/batman-adv/send.h ++++ b/net/batman-adv/send.h +@@ -23,8 +23,7 @@ + #include <linux/compiler.h> + #include <linux/spinlock.h> + #include <linux/types.h> +- +-#include "packet.h" ++#include <uapi/linux/batadv_packet.h> + + struct sk_buff; + +--- a/net/batman-adv/soft-interface.c ++++ b/net/batman-adv/soft-interface.c +@@ -48,6 +48,7 @@ + #include <linux/stddef.h> + #include <linux/string.h> + #include <linux/types.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bat_algo.h" + #include "bridge_loop_avoidance.h" +@@ -59,7 +60,6 @@ + #include "multicast.h" + #include "network-coding.h" + #include "originator.h" +-#include "packet.h" + #include "send.h" + #include "sysfs.h" + #include "translation-table.h" +--- a/net/batman-adv/sysfs.c ++++ b/net/batman-adv/sysfs.c +@@ -37,6 +37,7 @@ + #include <linux/string.h> + #include <linux/stringify.h> + #include <linux/workqueue.h> ++#include <uapi/linux/batadv_packet.h> + + #include "bridge_loop_avoidance.h" + #include "distributed-arp-table.h" +@@ -45,7 +46,6 @@ + #include "hard-interface.h" + #include "log.h" + #include "network-coding.h" +-#include "packet.h" + #include "soft-interface.h" + + static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) +--- a/net/batman-adv/tp_meter.c ++++ b/net/batman-adv/tp_meter.c +@@ -48,13 +48,13 @@ + #include <linux/timer.h> + #include <linux/wait.h> + #include <linux/workqueue.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "hard-interface.h" + #include "log.h" + #include "netlink.h" + #include "originator.h" +-#include "packet.h" + #include "send.h" + + /** +--- a/net/batman-adv/translation-table.c ++++ b/net/batman-adv/translation-table.c +@@ -50,6 +50,7 @@ + #include <net/genetlink.h> + #include <net/netlink.h> + #include <net/sock.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + + #include "bridge_loop_avoidance.h" +@@ -58,7 +59,6 @@ + #include "log.h" + #include "netlink.h" + #include "originator.h" +-#include "packet.h" + #include "soft-interface.h" + #include "tvlv.h" + +--- a/net/batman-adv/tvlv.c ++++ b/net/batman-adv/tvlv.c +@@ -35,9 +35,9 @@ + #include <linux/stddef.h> + #include <linux/string.h> + #include <linux/types.h> ++#include <uapi/linux/batadv_packet.h> + + #include "originator.h" +-#include "packet.h" + #include "send.h" + #include "tvlv.h" + +--- a/net/batman-adv/types.h ++++ b/net/batman-adv/types.h +@@ -34,10 +34,9 @@ + #include <linux/types.h> + #include <linux/wait.h> + #include <linux/workqueue.h> ++#include <uapi/linux/batadv_packet.h> + #include <uapi/linux/batman_adv.h> + +-#include "packet.h" +- + struct seq_file; + + #ifdef CONFIG_BATMAN_ADV_DAT +--- /dev/null ++++ b/include/uapi/linux/batadv_packet.h +@@ -0,0 +1,623 @@ ++/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */ ++/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors: ++ * ++ * Marek Lindner, Simon Wunderlich ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of version 2 of the GNU General Public ++ * License as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef _UAPI_LINUX_BATADV_PACKET_H_ ++#define _UAPI_LINUX_BATADV_PACKET_H_ ++ ++#include <asm/byteorder.h> ++#include <linux/if_ether.h> ++#include <linux/types.h> ++ ++#define batadv_tp_is_error(n) ((__u8)(n) > 127 ? 1 : 0) ++ ++/** ++ * enum batadv_packettype - types for batman-adv encapsulated packets ++ * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV ++ * @BATADV_BCAST: broadcast packets carrying broadcast payload ++ * @BATADV_CODED: network coded packets ++ * @BATADV_ELP: echo location packets for B.A.T.M.A.N. V ++ * @BATADV_OGM2: originator messages for B.A.T.M.A.N. V ++ * ++ * @BATADV_UNICAST: unicast packets carrying unicast payload traffic ++ * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original ++ * payload packet ++ * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of ++ * the sender ++ * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute ++ * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers ++ */ ++enum batadv_packettype { ++ /* 0x00 - 0x3f: local packets or special rules for handling */ ++ BATADV_IV_OGM = 0x00, ++ BATADV_BCAST = 0x01, ++ BATADV_CODED = 0x02, ++ BATADV_ELP = 0x03, ++ BATADV_OGM2 = 0x04, ++ /* 0x40 - 0x7f: unicast */ ++#define BATADV_UNICAST_MIN 0x40 ++ BATADV_UNICAST = 0x40, ++ BATADV_UNICAST_FRAG = 0x41, ++ BATADV_UNICAST_4ADDR = 0x42, ++ BATADV_ICMP = 0x43, ++ BATADV_UNICAST_TVLV = 0x44, ++#define BATADV_UNICAST_MAX 0x7f ++ /* 0x80 - 0xff: reserved */ ++}; ++ ++/** ++ * enum batadv_subtype - packet subtype for unicast4addr ++ * @BATADV_P_DATA: user payload ++ * @BATADV_P_DAT_DHT_GET: DHT request message ++ * @BATADV_P_DAT_DHT_PUT: DHT store message ++ * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT ++ */ ++enum batadv_subtype { ++ BATADV_P_DATA = 0x01, ++ BATADV_P_DAT_DHT_GET = 0x02, ++ BATADV_P_DAT_DHT_PUT = 0x03, ++ BATADV_P_DAT_CACHE_REPLY = 0x04, ++}; ++ ++/* this file is included by batctl which needs these defines */ ++#define BATADV_COMPAT_VERSION 15 ++ ++/** ++ * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets ++ * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was ++ * previously received from someone else than the best neighbor. ++ * @BATADV_PRIMARIES_FIRST_HOP: flag unused. ++ * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a ++ * one hop neighbor on the interface where it was originally received. ++ */ ++enum batadv_iv_flags { ++ BATADV_NOT_BEST_NEXT_HOP = 1UL << 0, ++ BATADV_PRIMARIES_FIRST_HOP = 1UL << 1, ++ BATADV_DIRECTLINK = 1UL << 2, ++}; ++ ++/* ICMP message types */ ++enum batadv_icmp_packettype { ++ BATADV_ECHO_REPLY = 0, ++ BATADV_DESTINATION_UNREACHABLE = 3, ++ BATADV_ECHO_REQUEST = 8, ++ BATADV_TTL_EXCEEDED = 11, ++ BATADV_PARAMETER_PROBLEM = 12, ++ BATADV_TP = 15, ++}; ++ ++/** ++ * enum batadv_mcast_flags - flags for multicast capabilities and settings ++ * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for ++ * 224.0.0.0/24 or ff02::1 ++ * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets ++ * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets ++ */ ++enum batadv_mcast_flags { ++ BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0, ++ BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1, ++ BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2, ++}; ++ ++/* tt data subtypes */ ++#define BATADV_TT_DATA_TYPE_MASK 0x0F ++ ++/** ++ * enum batadv_tt_data_flags - flags for tt data tvlv ++ * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM ++ * @BATADV_TT_REQUEST: TT request message ++ * @BATADV_TT_RESPONSE: TT response message ++ * @BATADV_TT_FULL_TABLE: contains full table to replace existing table ++ */ ++enum batadv_tt_data_flags { ++ BATADV_TT_OGM_DIFF = 1UL << 0, ++ BATADV_TT_REQUEST = 1UL << 1, ++ BATADV_TT_RESPONSE = 1UL << 2, ++ BATADV_TT_FULL_TABLE = 1UL << 4, ++}; ++ ++/** ++ * enum batadv_vlan_flags - flags for the four MSB of any vlan ID field ++ * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not ++ */ ++enum batadv_vlan_flags { ++ BATADV_VLAN_HAS_TAG = 1UL << 15, ++}; ++ ++/* claim frame types for the bridge loop avoidance */ ++enum batadv_bla_claimframe { ++ BATADV_CLAIM_TYPE_CLAIM = 0x00, ++ BATADV_CLAIM_TYPE_UNCLAIM = 0x01, ++ BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, ++ BATADV_CLAIM_TYPE_REQUEST = 0x03, ++ BATADV_CLAIM_TYPE_LOOPDETECT = 0x04, ++}; ++ ++/** ++ * enum batadv_tvlv_type - tvlv type definitions ++ * @BATADV_TVLV_GW: gateway tvlv ++ * @BATADV_TVLV_DAT: distributed arp table tvlv ++ * @BATADV_TVLV_NC: network coding tvlv ++ * @BATADV_TVLV_TT: translation table tvlv ++ * @BATADV_TVLV_ROAM: roaming advertisement tvlv ++ * @BATADV_TVLV_MCAST: multicast capability tvlv ++ */ ++enum batadv_tvlv_type { ++ BATADV_TVLV_GW = 0x01, ++ BATADV_TVLV_DAT = 0x02, ++ BATADV_TVLV_NC = 0x03, ++ BATADV_TVLV_TT = 0x04, ++ BATADV_TVLV_ROAM = 0x05, ++ BATADV_TVLV_MCAST = 0x06, ++}; ++ ++#pragma pack(2) ++/* the destination hardware field in the ARP frame is used to ++ * transport the claim type and the group id ++ */ ++struct batadv_bla_claim_dst { ++ __u8 magic[3]; /* FF:43:05 */ ++ __u8 type; /* bla_claimframe */ ++ __be16 group; /* group id */ ++}; ++ ++#pragma pack() ++ ++/** ++ * struct batadv_ogm_packet - ogm (routing protocol) packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @flags: contains routing relevant flags - see enum batadv_iv_flags ++ * @seqno: sequence identification ++ * @orig: address of the source node ++ * @prev_sender: address of the previous sender ++ * @reserved: reserved byte for alignment ++ * @tq: transmission quality ++ * @tvlv_len: length of tvlv data following the ogm header ++ */ ++struct batadv_ogm_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 flags; ++ __be32 seqno; ++ __u8 orig[ETH_ALEN]; ++ __u8 prev_sender[ETH_ALEN]; ++ __u8 reserved; ++ __u8 tq; ++ __be16 tvlv_len; ++ /* __packed is not needed as the struct size is divisible by 4, ++ * and the largest data type in this struct has a size of 4. ++ */ ++}; ++ ++#define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) ++ ++/** ++ * struct batadv_ogm2_packet - ogm2 (routing protocol) packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the general header ++ * @ttl: time to live for this packet, part of the general header ++ * @flags: reseved for routing relevant flags - currently always 0 ++ * @seqno: sequence number ++ * @orig: originator mac address ++ * @tvlv_len: length of the appended tvlv buffer (in bytes) ++ * @throughput: the currently flooded path throughput ++ */ ++struct batadv_ogm2_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 flags; ++ __be32 seqno; ++ __u8 orig[ETH_ALEN]; ++ __be16 tvlv_len; ++ __be32 throughput; ++ /* __packed is not needed as the struct size is divisible by 4, ++ * and the largest data type in this struct has a size of 4. ++ */ ++}; ++ ++#define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet) ++ ++/** ++ * struct batadv_elp_packet - elp (neighbor discovery) packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @orig: originator mac address ++ * @seqno: sequence number ++ * @elp_interval: currently used ELP sending interval in ms ++ */ ++struct batadv_elp_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 orig[ETH_ALEN]; ++ __be32 seqno; ++ __be32 elp_interval; ++}; ++ ++#define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet) ++ ++/** ++ * struct batadv_icmp_header - common members among all the ICMP packets ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @msg_type: ICMP packet type ++ * @dst: address of the destination node ++ * @orig: address of the source node ++ * @uid: local ICMP socket identifier ++ * @align: not used - useful for alignment purposes only ++ * ++ * This structure is used for ICMP packets parsing only and it is never sent ++ * over the wire. The alignment field at the end is there to ensure that ++ * members are padded the same way as they are in real packets. ++ */ ++struct batadv_icmp_header { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 align[3]; ++}; ++ ++/** ++ * struct batadv_icmp_packet - ICMP packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @msg_type: ICMP packet type ++ * @dst: address of the destination node ++ * @orig: address of the source node ++ * @uid: local ICMP socket identifier ++ * @reserved: not used - useful for alignment ++ * @seqno: ICMP sequence number ++ */ ++struct batadv_icmp_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 reserved; ++ __be16 seqno; ++}; ++ ++/** ++ * struct batadv_icmp_tp_packet - ICMP TP Meter packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @msg_type: ICMP packet type ++ * @dst: address of the destination node ++ * @orig: address of the source node ++ * @uid: local ICMP socket identifier ++ * @subtype: TP packet subtype (see batadv_icmp_tp_subtype) ++ * @session: TP session identifier ++ * @seqno: the TP sequence number ++ * @timestamp: time when the packet has been sent. This value is filled in a ++ * TP_MSG and echoed back in the next TP_ACK so that the sender can compute the ++ * RTT. Since it is read only by the host which wrote it, there is no need to ++ * store it using network order ++ */ ++struct batadv_icmp_tp_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 subtype; ++ __u8 session[2]; ++ __be32 seqno; ++ __be32 timestamp; ++}; ++ ++/** ++ * enum batadv_icmp_tp_subtype - ICMP TP Meter packet subtypes ++ * @BATADV_TP_MSG: Msg from sender to receiver ++ * @BATADV_TP_ACK: acknowledgment from receiver to sender ++ */ ++enum batadv_icmp_tp_subtype { ++ BATADV_TP_MSG = 0, ++ BATADV_TP_ACK, ++}; ++ ++#define BATADV_RR_LEN 16 ++ ++/** ++ * struct batadv_icmp_packet_rr - ICMP RouteRecord packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @msg_type: ICMP packet type ++ * @dst: address of the destination node ++ * @orig: address of the source node ++ * @uid: local ICMP socket identifier ++ * @rr_cur: number of entries the rr array ++ * @seqno: ICMP sequence number ++ * @rr: route record array ++ */ ++struct batadv_icmp_packet_rr { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 msg_type; /* see ICMP message types above */ ++ __u8 dst[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __u8 uid; ++ __u8 rr_cur; ++ __be16 seqno; ++ __u8 rr[BATADV_RR_LEN][ETH_ALEN]; ++}; ++ ++#define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) ++ ++/* All packet headers in front of an ethernet header have to be completely ++ * divisible by 2 but not by 4 to make the payload after the ethernet ++ * header again 4 bytes boundary aligned. ++ * ++ * A packing of 2 is necessary to avoid extra padding at the end of the struct ++ * caused by a structure member which is larger than two bytes. Otherwise ++ * the structure would not fulfill the previously mentioned rule to avoid the ++ * misalignment of the payload after the ethernet header. It may also lead to ++ * leakage of information when the padding it not initialized before sending. ++ */ ++#pragma pack(2) ++ ++/** ++ * struct batadv_unicast_packet - unicast packet for network payload ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @ttvn: translation table version number ++ * @dest: originator destination of the unicast packet ++ */ ++struct batadv_unicast_packet { ++ __u8 packet_type; ++ __u8 version; ++ __u8 ttl; ++ __u8 ttvn; /* destination translation table version number */ ++ __u8 dest[ETH_ALEN]; ++ /* "4 bytes boundary + 2 bytes" long to make the payload after the ++ * following ethernet header again 4 bytes boundary aligned ++ */ ++}; ++ ++/** ++ * struct batadv_unicast_4addr_packet - extended unicast packet ++ * @u: common unicast packet header ++ * @src: address of the source ++ * @subtype: packet subtype ++ * @reserved: reserved byte for alignment ++ */ ++struct batadv_unicast_4addr_packet { ++ struct batadv_unicast_packet u; ++ __u8 src[ETH_ALEN]; ++ __u8 subtype; ++ __u8 reserved; ++ /* "4 bytes boundary + 2 bytes" long to make the payload after the ++ * following ethernet header again 4 bytes boundary aligned ++ */ ++}; ++ ++/** ++ * struct batadv_frag_packet - fragmented packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @dest: final destination used when routing fragments ++ * @orig: originator of the fragment used when merging the packet ++ * @no: fragment number within this sequence ++ * @priority: priority of frame, from ToS IP precedence or 802.1p ++ * @reserved: reserved byte for alignment ++ * @seqno: sequence identification ++ * @total_size: size of the merged packet ++ */ ++struct batadv_frag_packet { ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++#if defined(__BIG_ENDIAN_BITFIELD) ++ __u8 no:4; ++ __u8 priority:3; ++ __u8 reserved:1; ++#elif defined(__LITTLE_ENDIAN_BITFIELD) ++ __u8 reserved:1; ++ __u8 priority:3; ++ __u8 no:4; ++#else ++#error "unknown bitfield endianness" ++#endif ++ __u8 dest[ETH_ALEN]; ++ __u8 orig[ETH_ALEN]; ++ __be16 seqno; ++ __be16 total_size; ++}; ++ ++/** ++ * struct batadv_bcast_packet - broadcast packet for network payload ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @reserved: reserved byte for alignment ++ * @seqno: sequence identification ++ * @orig: originator of the broadcast packet ++ */ ++struct batadv_bcast_packet { ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 reserved; ++ __be32 seqno; ++ __u8 orig[ETH_ALEN]; ++ /* "4 bytes boundary + 2 bytes" long to make the payload after the ++ * following ethernet header again 4 bytes boundary aligned ++ */ ++}; ++ ++/** ++ * struct batadv_coded_packet - network coded packet ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @first_source: original source of first included packet ++ * @first_orig_dest: original destinal of first included packet ++ * @first_crc: checksum of first included packet ++ * @first_ttvn: tt-version number of first included packet ++ * @second_ttl: ttl of second packet ++ * @second_dest: second receiver of this coded packet ++ * @second_source: original source of second included packet ++ * @second_orig_dest: original destination of second included packet ++ * @second_crc: checksum of second included packet ++ * @second_ttvn: tt version number of second included packet ++ * @coded_len: length of network coded part of the payload ++ */ ++struct batadv_coded_packet { ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 first_ttvn; ++ /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */ ++ __u8 first_source[ETH_ALEN]; ++ __u8 first_orig_dest[ETH_ALEN]; ++ __be32 first_crc; ++ __u8 second_ttl; ++ __u8 second_ttvn; ++ __u8 second_dest[ETH_ALEN]; ++ __u8 second_source[ETH_ALEN]; ++ __u8 second_orig_dest[ETH_ALEN]; ++ __be32 second_crc; ++ __be16 coded_len; ++}; ++ ++#pragma pack() ++ ++/** ++ * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload ++ * @packet_type: batman-adv packet type, part of the general header ++ * @version: batman-adv protocol version, part of the genereal header ++ * @ttl: time to live for this packet, part of the genereal header ++ * @reserved: reserved field (for packet alignment) ++ * @src: address of the source ++ * @dst: address of the destination ++ * @tvlv_len: length of tvlv data following the unicast tvlv header ++ * @align: 2 bytes to align the header to a 4 byte boundary ++ */ ++struct batadv_unicast_tvlv_packet { ++ __u8 packet_type; ++ __u8 version; /* batman version field */ ++ __u8 ttl; ++ __u8 reserved; ++ __u8 dst[ETH_ALEN]; ++ __u8 src[ETH_ALEN]; ++ __be16 tvlv_len; ++ __u16 align; ++}; ++ ++/** ++ * struct batadv_tvlv_hdr - base tvlv header struct ++ * @type: tvlv container type (see batadv_tvlv_type) ++ * @version: tvlv container version ++ * @len: tvlv container length ++ */ ++struct batadv_tvlv_hdr { ++ __u8 type; ++ __u8 version; ++ __be16 len; ++}; ++ ++/** ++ * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv ++ * container ++ * @bandwidth_down: advertised uplink download bandwidth ++ * @bandwidth_up: advertised uplink upload bandwidth ++ */ ++struct batadv_tvlv_gateway_data { ++ __be32 bandwidth_down; ++ __be32 bandwidth_up; ++}; ++ ++/** ++ * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container ++ * @flags: translation table flags (see batadv_tt_data_flags) ++ * @ttvn: translation table version number ++ * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by ++ * one batadv_tvlv_tt_vlan_data object per announced vlan ++ */ ++struct batadv_tvlv_tt_data { ++ __u8 flags; ++ __u8 ttvn; ++ __be16 num_vlan; ++}; ++ ++/** ++ * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through ++ * the tt tvlv container ++ * @crc: crc32 checksum of the entries belonging to this vlan ++ * @vid: vlan identifier ++ * @reserved: unused, useful for alignment purposes ++ */ ++struct batadv_tvlv_tt_vlan_data { ++ __be32 crc; ++ __be16 vid; ++ __u16 reserved; ++}; ++ ++/** ++ * struct batadv_tvlv_tt_change - translation table diff data ++ * @flags: status indicators concerning the non-mesh client (see ++ * batadv_tt_client_flags) ++ * @reserved: reserved field - useful for alignment purposes only ++ * @addr: mac address of non-mesh client that triggered this tt change ++ * @vid: VLAN identifier ++ */ ++struct batadv_tvlv_tt_change { ++ __u8 flags; ++ __u8 reserved[3]; ++ __u8 addr[ETH_ALEN]; ++ __be16 vid; ++}; ++ ++/** ++ * struct batadv_tvlv_roam_adv - roaming advertisement ++ * @client: mac address of roaming client ++ * @vid: VLAN identifier ++ */ ++struct batadv_tvlv_roam_adv { ++ __u8 client[ETH_ALEN]; ++ __be16 vid; ++}; ++ ++/** ++ * struct batadv_tvlv_mcast_data - payload of a multicast tvlv ++ * @flags: multicast flags announced by the orig node ++ * @reserved: reserved field ++ */ ++struct batadv_tvlv_mcast_data { ++ __u8 flags; ++ __u8 reserved[3]; ++}; ++ ++#endif /* _UAPI_LINUX_BATADV_PACKET_H_ */ diff --git a/target/linux/generic/backport-4.14/274-flow_dissector-Parse-batman-adv-unicast-headers.patch b/target/linux/generic/backport-4.14/274-flow_dissector-Parse-batman-adv-unicast-headers.patch new file mode 100644 index 0000000000..b0b2823cc9 --- /dev/null +++ b/target/linux/generic/backport-4.14/274-flow_dissector-Parse-batman-adv-unicast-headers.patch @@ -0,0 +1,108 @@ +From: Sven Eckelmann <sven.eckelmann@openmesh.com> +Date: Thu, 21 Dec 2017 10:17:42 +0100 +Subject: [PATCH] flow_dissector: Parse batman-adv unicast headers + +The batman-adv unicast packets contain a full layer 2 frame in encapsulated +form. The flow dissector must therefore be able to parse the batman-adv +unicast header to reach the layer 2+3 information. + + +--------------------+ + | ip(v6)hdr | + +--------------------+ + | inner ethhdr | + +--------------------+ + | batadv unicast hdr | + +--------------------+ + | outer ethhdr | + +--------------------+ + +The obtained information from the upper layer can then be used by RPS to +schedule the processing on separate cores. This allows better distribution +of multiple flows from the same neighbor to different cores. + +Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> +Reviewed-by: Jiri Pirko <jiri@mellanox.com> +Acked-by: Willem de Bruijn <willemb@google.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +--- a/net/core/flow_dissector.c ++++ b/net/core/flow_dissector.c +@@ -22,6 +22,7 @@ + #include <linux/tcp.h> + #include <net/flow_dissector.h> + #include <scsi/fc/fc_fcoe.h> ++#include <uapi/linux/batadv_packet.h> + + static void dissector_set_key(struct flow_dissector *flow_dissector, + enum flow_dissector_key_id key_id) +@@ -338,6 +339,57 @@ __skb_flow_dissect_gre(const struct sk_b + return FLOW_DISSECT_RET_PROTO_AGAIN; + } + ++/** ++ * __skb_flow_dissect_batadv() - dissect batman-adv header ++ * @skb: sk_buff to with the batman-adv header ++ * @key_control: flow dissectors control key ++ * @data: raw buffer pointer to the packet, if NULL use skb->data ++ * @p_proto: pointer used to update the protocol to process next ++ * @p_nhoff: pointer used to update inner network header offset ++ * @hlen: packet header length ++ * @flags: any combination of FLOW_DISSECTOR_F_* ++ * ++ * ETH_P_BATMAN packets are tried to be dissected. Only ++ * &struct batadv_unicast packets are actually processed because they contain an ++ * inner ethernet header and are usually followed by actual network header. This ++ * allows the flow dissector to continue processing the packet. ++ * ++ * Return: FLOW_DISSECT_RET_PROTO_AGAIN when &struct batadv_unicast was found, ++ * FLOW_DISSECT_RET_OUT_GOOD when dissector should stop after encapsulation, ++ * otherwise FLOW_DISSECT_RET_OUT_BAD ++ */ ++static enum flow_dissect_ret ++__skb_flow_dissect_batadv(const struct sk_buff *skb, ++ struct flow_dissector_key_control *key_control, ++ void *data, __be16 *p_proto, int *p_nhoff, int hlen, ++ unsigned int flags) ++{ ++ struct { ++ struct batadv_unicast_packet batadv_unicast; ++ struct ethhdr eth; ++ } *hdr, _hdr; ++ ++ hdr = __skb_header_pointer(skb, *p_nhoff, sizeof(_hdr), data, hlen, ++ &_hdr); ++ if (!hdr) ++ return FLOW_DISSECT_RET_OUT_BAD; ++ ++ if (hdr->batadv_unicast.version != BATADV_COMPAT_VERSION) ++ return FLOW_DISSECT_RET_OUT_BAD; ++ ++ if (hdr->batadv_unicast.packet_type != BATADV_UNICAST) ++ return FLOW_DISSECT_RET_OUT_BAD; ++ ++ *p_proto = hdr->eth.h_proto; ++ *p_nhoff += sizeof(*hdr); ++ ++ key_control->flags |= FLOW_DIS_ENCAPSULATION; ++ if (flags & FLOW_DISSECTOR_F_STOP_AT_ENCAP) ++ return FLOW_DISSECT_RET_OUT_GOOD; ++ ++ return FLOW_DISSECT_RET_PROTO_AGAIN; ++} ++ + static void + __skb_flow_dissect_tcp(const struct sk_buff *skb, + struct flow_dissector *flow_dissector, +@@ -717,6 +769,11 @@ proto_again: + nhoff, hlen); + break; + ++ case htons(ETH_P_BATMAN): ++ fdret = __skb_flow_dissect_batadv(skb, key_control, data, ++ &proto, &nhoff, hlen, flags); ++ break; ++ + default: + fdret = FLOW_DISSECT_RET_OUT_BAD; + break; |