diff options
| author | Vadim Kochan <vadim4j@gmail.com> | 2016-02-08 08:01:53 +0200 |
|---|---|---|
| committer | Tobias Klauser <tklauser@distanz.ch> | 2016-02-23 13:23:53 +0100 |
| commit | d1dfc01a4068e3c15a1195f804448a9a3dee5b2b (patch) | |
| tree | e0043241653c749215c52db74ed14b96b01abc50 | |
| parent | 116835ed0d245f3e73173f2f2057265827416ce6 (diff) | |
trafgen: parser: Add syntax for MPLS header creating
Add 'mpls()' function for creating MPLS header with parameters:
lbl|label MPLS label
last Indicates the last label on MPLS stack
tc|tclass|exp Traffic Class (TC)
ttl TTL (Time To Live)
Currently only unicast MPLS is supported, but multicast might be set
via 'eth()' function.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
| -rw-r--r-- | trafgen_lexer.l | 7 | ||||
| -rw-r--r-- | trafgen_parser.y | 34 |
2 files changed, 40 insertions, 1 deletions
diff --git a/trafgen_lexer.l b/trafgen_lexer.l index e1d1a3f..3c624f8 100644 --- a/trafgen_lexer.l +++ b/trafgen_lexer.l @@ -120,6 +120,12 @@ ip4_addr ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+) "1ad" { return K_1AD; } "1q" { return K_1Q; } + /* MPLS (Multi Protocol Label Switching) */ +"lbl"|"label" { return K_LABEL; } +"last" { return K_LAST; } +"tc"|"tclass" { return K_TC; } +"exp" { return K_EXP; } + /* ARP */ "sha"|"smac" { return K_SHA; } "spa"|"sip" { return K_SPA; } @@ -167,6 +173,7 @@ ip4_addr ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+) "eth" { return K_ETH; } "vlan" { return K_VLAN; } +"mpls" { return K_MPLS; } "arp" { return K_ARP; } "ip4"|"ipv4" { return K_IP4; } "udp" { return K_UDP; } diff --git a/trafgen_parser.y b/trafgen_parser.y index 655b0ba..0b1c0fb 100644 --- a/trafgen_parser.y +++ b/trafgen_parser.y @@ -356,9 +356,10 @@ static void proto_add(enum proto_id pid) %token K_SPORT K_DPORT %token K_SEQ K_ACK_SEQ K_DOFF K_CWR K_ECE K_URG K_ACK K_PSH K_RST K_SYN K_FIN K_WINDOW K_URG_PTR %token K_TPID K_TCI K_PCP K_DEI K_1Q K_1AD +%token K_LABEL K_TC K_LAST K_EXP %token K_ETH -%token K_VLAN +%token K_VLAN K_MPLS %token K_ARP %token K_IP4 %token K_UDP K_TCP @@ -583,6 +584,7 @@ ddec proto : eth_proto { } | vlan_proto { } + | mpls_proto { } | arp_proto { } | ip4_proto { } | udp_proto { } @@ -653,6 +655,36 @@ vlan_field { proto_field_set_be16(hdr, VLAN_VID, $5); } ; +mpls_proto + : mpls '(' mpls_param_list ')' { } + ; + +mpls + : K_MPLS { proto_add(PROTO_MPLS); } + ; + +mpls_param_list + : { } + | mpls_field { } + | mpls_field delimiter mpls_param_list { } + ; + +mpls_tc + : K_TC { } + | K_EXP { } + ; + +mpls_field + : K_LABEL skip_white '=' skip_white number + { proto_field_set_be32(hdr, MPLS_LABEL, $5); } + | mpls_tc skip_white '=' skip_white number + { proto_field_set_be32(hdr, MPLS_TC, $5); } + | K_LAST skip_white '=' skip_white number + { proto_field_set_be32(hdr, MPLS_LAST, $5); } + | K_TTL skip_white '=' skip_white number + { proto_field_set_be32(hdr, MPLS_TTL, $5); } + ; + arp_proto : arp '(' arp_param_list ')' { } ; |