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| author | Tobias Klauser <tklauser@distanz.ch> | 2016-02-01 15:56:10 +0100 |
|---|---|---|
| committer | Tobias Klauser <tklauser@distanz.ch> | 2016-02-01 16:22:24 +0100 |
| commit | f26175af848bfb3faaedd98b402949e8bd7ab8bc (patch) | |
| tree | 3901fb68dd629e08abc02b81349ff4cb6b26f213 /trafgen_lexer.l | |
| parent | 0042946ef9e332e32af00a0fe0c6c7b6eec4b0e1 (diff) | |
trafgen: parser: Add TCP header generation function
Add a function 'tcp()' to generate TCP headers from the trafgen
configuration language.
Fields supported:
sp|sport TCP source port (default 0)
dp|dport TCP destination port (default 0)
seq Sequence number (default: 0)
aseq|ackseq Acknowledgement number (default 0)
doff|hlen Header length/data offset (default: 5)
cwr Congestion Window Reduced flag (default: 0)
ece|ecn ECN-Echo flag (default: 0)
urg Urgent flag (default: 0)
ack Acknowledgement flag (default: 0)
psh Push flag (default: 0)
rst Reset flag (default: 0)
syn Synchronize flag (default: 0)
fin Finish flag (default: 0)
win|window Receive window size (default: 0)
csum Checksum field (calculated automatically)
urgptr Urgent pointer (default: 0)
Example (SYN on port 80/http):
{ tcp(dport=80, syn, window=5840) }
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'trafgen_lexer.l')
| -rw-r--r-- | trafgen_lexer.l | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/trafgen_lexer.l b/trafgen_lexer.l index 5ab0815..83e7602 100644 --- a/trafgen_lexer.l +++ b/trafgen_lexer.l @@ -143,10 +143,26 @@ ip4_addr ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+) "sp"|"sport" { return K_SPORT; } "dp"|"dport" { return K_DPORT; } + /* TCP */ +"seq" { return K_SEQ; } +"ackseq"|"aseq" { return K_ACK_SEQ; } +"doff"|hlen { return K_DOFF; } +"cwr" { return K_CWR; } +"ece"|"ecn" { return K_ECE; } +"urg" { return K_URG; } +"ack" { return K_ACK; } +"psh" { return K_PSH; } +"rst" { return K_RST; } +"syn" { return K_SYN; } +"fin" { return K_FIN; } +"win"|"window" { return K_WINDOW; } +"urgptr" { return K_URG_PTR; } + "eth" { return K_ETH; } "arp" { return K_ARP; } "ip4"|"ipv4" { return K_IP4; } "udp" { return K_UDP; } +"tcp" { return K_TCP; } [ ]*"-"[ ]* { return '-'; } [ ]*"+"[ ]* { return '+'; } |