filter: introduce SKF_AD_VLAN_TPID BPF extension

[firefly-linux-kernel-4.4.55.git] / tools / net / bpf_exp.y

diff --git a/tools/net/bpf_exp.y b/tools/net/bpf_exp.y
index e6306c51c26f9e7cb53342ad088a9db1e4e32423..f8332749b44c49a45b2c9f10165f7b9ee6d62cd4 100644 (file)
--- a/tools/net/bpf_exp.y
+++ b/tools/net/bpf_exp.y
@@ -56,7 +56,7 @@ static void bpf_set_jmp_label(char *label, enum jmp_type type);
 %token OP_LDXI
 
 %token K_PKT_LEN K_PROTO K_TYPE K_NLATTR K_NLATTR_NEST K_MARK K_QUEUE K_HATYPE
-%token K_RXHASH K_CPU K_IFIDX K_VLANT K_VLANP K_POFF K_RAND
+%token K_RXHASH K_CPU K_IFIDX K_VLANT K_VLANP K_VLANTPID K_POFF K_RAND
 
 %token ':' ',' '[' ']' '(' ')' 'x' 'a' '+' 'M' '*' '&' '#' '%'
 
@@ -167,6 +167,9 @@ ldb
        | OP_LDB K_RAND {
                bpf_set_curr_instr(BPF_LD | BPF_B | BPF_ABS, 0, 0,
                                   SKF_AD_OFF + SKF_AD_RANDOM); }
+       | OP_LDB K_VLANTPID {
+               bpf_set_curr_instr(BPF_LD | BPF_B | BPF_ABS, 0, 0,
+                                  SKF_AD_OFF + SKF_AD_VLAN_TPID); }
        ;
 
 ldh
@@ -218,6 +221,9 @@ ldh
        | OP_LDH K_RAND {
                bpf_set_curr_instr(BPF_LD | BPF_H | BPF_ABS, 0, 0,
                                   SKF_AD_OFF + SKF_AD_RANDOM); }
+       | OP_LDH K_VLANTPID {
+               bpf_set_curr_instr(BPF_LD | BPF_H | BPF_ABS, 0, 0,
+                                  SKF_AD_OFF + SKF_AD_VLAN_TPID); }
        ;
 
 ldi
@@ -274,6 +280,9 @@ ld
        | OP_LD K_RAND {
                bpf_set_curr_instr(BPF_LD | BPF_W | BPF_ABS, 0, 0,
                                   SKF_AD_OFF + SKF_AD_RANDOM); }
+       | OP_LD K_VLANTPID {
+               bpf_set_curr_instr(BPF_LD | BPF_W | BPF_ABS, 0, 0,
+                                  SKF_AD_OFF + SKF_AD_VLAN_TPID); }
        | OP_LD 'M' '[' number ']' {
                bpf_set_curr_instr(BPF_LD | BPF_MEM, 0, 0, $4); }
        | OP_LD '[' 'x' '+' number ']' {