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msm_ipa: Install exception rule for PPPoE-MPLS

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Add code to install exception rule for icmp
and dhcp packet in DL direction for v4 and v6.

Change-Id: I27a2c3cb9cb342a5e4d22246e350bf721d784a15
Signed-off-by: Himansu Nayak <quic_himansu@quicinc.com>
This commit is contained in:
Himansu Nayak 2024-08-01 18:33:16 +05:30
commit 752e583b65
1 changed files with 44 additions and 1 deletions
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45
include/uapi/linux/msm_ipa.h
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@ -1140,6 +1140,48 @@ static inline const char *exception_type_as_str(enum ipa_exception_type t)
"???";
}
/**
* Macro ipa_exception_type_pppoe
*
* This macro is for describing which field is to be looked at for
* exception path consideration.
*
* NOTE 1: The field implies an offset into the packet under
* consideration. This offset will be calculated on behalf of
* the user of this API.
*
* NOTE 2: When exceptions are generated/sent in an ipa_exception
* structure, they will considered to be from the upload
* perspective. And when appropriate, a corresponding, and
* perhaps inverted, downlink exception will be automatically
* created on the callers behalf. As an example: If a
* FIELD_UDP_SRC_PORT is sent, an uplink exception will be
* created for udp source port, and a corresponding
* FIELD_UDP_DST_PORT will be automatically created for the
* downlink.
*/
#define FIELD_IP_PROTOCOL_PPPOE (FIELD_ETHER_TYPE + 1)
#define FIELD_TCP_SRC_PORT_PPPOE (FIELD_IP_PROTOCOL_PPPOE + 1)
#define FIELD_TCP_DST_PORT_PPPOE (FIELD_TCP_SRC_PORT_PPPOE + 1)
#define FIELD_UDP_SRC_PORT_PPPOE (FIELD_TCP_DST_PORT_PPPOE + 1)
#define FIELD_UDP_DST_PORT_PPPOE (FIELD_UDP_SRC_PORT_PPPOE + 1)
#define FIELD_ETHER_TYPE_PPPOE (FIELD_UDP_DST_PORT_PPPOE + 1)
#define FIELD_PPPOE_MAX (FIELD_ETHER_TYPE_PPPOE + 1)
/* Function to read PPPoE exception in string format */
static inline const char *pppoe_exception_type_as_str(uint32_t t)
{
return
(t == FIELD_IP_PROTOCOL_PPPOE) ? "pppoe_ip_protocol" :
(t == FIELD_TCP_SRC_PORT_PPPOE) ? "pppoe_tcp_src_port" :
(t == FIELD_TCP_DST_PORT_PPPOE) ? "pppoe_tcp_dst_port" :
(t == FIELD_UDP_SRC_PORT_PPPOE) ? "pppoe_udp_src_port" :
(t == FIELD_UDP_DST_PORT_PPPOE) ? "pppoe_udp_dst_port" :
(t == FIELD_ETHER_TYPE_PPPOE) ? "pppoe_ether_type" :
(t == FIELD_PPPOE_MAX) ? "pppoe_max" :
"???";
}
#define IP_TYPE_EXCEPTION(x) \
((x) == FIELD_IP_PROTOCOL || \
(x) == FIELD_TCP_SRC_PORT || \
@ -1220,6 +1262,7 @@ struct ipa_field_val_equation_gen {
* @payload_length: Payload length.
* @ext_attrib_mask: Extended attributes.
* @l2tp_udp_next_hdr: next header in L2TP tunneling
* @p_exception : exception to enable for mpls-pppoe
* @field_val_equ: for finding a value at a particular offset
*/
struct ipa_rule_attrib {
@ -1265,7 +1308,7 @@ struct ipa_rule_attrib {
__u16 payload_length;
__u32 ext_attrib_mask;
__u8 l2tp_udp_next_hdr;
__u8 padding1;
__u8 p_exception;
struct ipa_field_val_equation_gen fld_val_eq;
};