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-rw-r--r--Documentation/networking/devlink/devlink-trap.rst70
-rw-r--r--include/net/devlink.h52
-rw-r--r--net/core/devlink.c17
3 files changed, 139 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 7a798352b45d..ef719ceac299 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -409,6 +409,73 @@ be added to the following table:
- ``drop``
- Traps packets dropped due to the RED (Random Early Detection) algorithm
(i.e., early drops)
+ * - ``vxlan_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the VXLAN header parsing which
+ might be because of packet truncation or the I flag is not set.
+ * - ``llc_snap_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the LLC+SNAP header parsing
+ * - ``vlan_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the VLAN header parsing. Could
+ include unexpected packet truncation.
+ * - ``pppoe_ppp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the PPPoE+PPP header parsing.
+ This could include finding a session ID of 0xFFFF (which is reserved and
+ not for use), a PPPoE length which is larger than the frame received or
+ any common error on this type of header
+ * - ``mpls_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the MPLS header parsing which
+ could include unexpected header truncation
+ * - ``arp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the ARP header parsing
+ * - ``ip_1_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the first IP header parsing.
+ This packet trap could include packets which do not pass an IP checksum
+ check, a header length check (a minimum of 20 bytes), which might suffer
+ from packet truncation thus the total length field exceeds the received
+ packet length etc
+ * - ``ip_n_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the parsing of the last IP
+ header (the inner one in case of an IP over IP tunnel). The same common
+ error checking is performed here as for the ip_1_parsing trap
+ * - ``gre_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the GRE header parsing
+ * - ``udp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the UDP header parsing.
+ This packet trap could include checksum errorrs, an improper UDP
+ length detected (smaller than 8 bytes) or detection of header
+ truncation.
+ * - ``tcp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the TCP header parsing.
+ This could include TCP checksum errors, improper combination of SYN, FIN
+ and/or RESET etc.
+ * - ``ipsec_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the IPSEC header parsing
+ * - ``sctp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the SCTP header parsing.
+ This would mean that port number 0 was used or that the header is
+ truncated.
+ * - ``dccp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the DCCP header parsing
+ * - ``gtp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the GTP header parsing
+ * - ``esp_parsing``
+ - ``drop``
+ - Traps packets dropped due to an error in the ESP header parsing
Driver-specific Packet Traps
============================
@@ -509,6 +576,9 @@ narrow. The description of these groups must be added to the following table:
* - ``acl_trap``
- Contains packet traps for packets that were trapped (logged) by the
device during ACL processing
+ * - ``parser_error_drops``
+ - Contains packet traps for packets that were marked by the device during
+ parsing as erroneous
Packet Trap Policers
====================
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 1c286e9a3590..1f5004a5c9f9 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -784,6 +784,22 @@ enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
+ DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
+ DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
/* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX,
@@ -819,6 +835,7 @@ enum devlink_trap_group_generic_id {
DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
+ DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
/* Add new generic trap group IDs above */
__DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
@@ -974,6 +991,39 @@ enum devlink_trap_group_generic_id {
"flow_action_trap"
#define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
"early_drop"
+#define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
+ "vxlan_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
+ "llc_snap_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
+ "vlan_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
+ "pppoe_ppp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
+ "mpls_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
+ "arp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
+ "ip_1_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
+ "ip_n_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
+ "gre_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
+ "udp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
+ "tcp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
+ "ipsec_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
+ "sctp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
+ "dccp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
+ "gtp_parsing"
+#define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
+ "esp_parsing"
+
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops"
@@ -1025,6 +1075,8 @@ enum devlink_trap_group_generic_id {
"acl_sample"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
"acl_trap"
+#define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
+ "parser_error_drops"
#define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id, \
_metadata_cap) \
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 6f2863e717a9..523bd8686866 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8925,6 +8925,22 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
DEVLINK_TRAP(EARLY_DROP, DROP),
+ DEVLINK_TRAP(VXLAN_PARSING, DROP),
+ DEVLINK_TRAP(LLC_SNAP_PARSING, DROP),
+ DEVLINK_TRAP(VLAN_PARSING, DROP),
+ DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP),
+ DEVLINK_TRAP(MPLS_PARSING, DROP),
+ DEVLINK_TRAP(ARP_PARSING, DROP),
+ DEVLINK_TRAP(IP_1_PARSING, DROP),
+ DEVLINK_TRAP(IP_N_PARSING, DROP),
+ DEVLINK_TRAP(GRE_PARSING, DROP),
+ DEVLINK_TRAP(UDP_PARSING, DROP),
+ DEVLINK_TRAP(TCP_PARSING, DROP),
+ DEVLINK_TRAP(IPSEC_PARSING, DROP),
+ DEVLINK_TRAP(SCTP_PARSING, DROP),
+ DEVLINK_TRAP(DCCP_PARSING, DROP),
+ DEVLINK_TRAP(GTP_PARSING, DROP),
+ DEVLINK_TRAP(ESP_PARSING, DROP),
};
#define DEVLINK_TRAP_GROUP(_id) \
@@ -8959,6 +8975,7 @@ static const struct devlink_trap_group devlink_trap_group_generic[] = {
DEVLINK_TRAP_GROUP(PTP_GENERAL),
DEVLINK_TRAP_GROUP(ACL_SAMPLE),
DEVLINK_TRAP_GROUP(ACL_TRAP),
+ DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS),
};
static int devlink_trap_generic_verify(const struct devlink_trap *trap)