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| author | Vadim Kochan <vadim4j@gmail.com> | 2016-07-13 01:01:53 +0300 |
|---|---|---|
| committer | Tobias Klauser <tklauser@distanz.ch> | 2016-07-13 09:32:07 +0200 |
| commit | 423bb070d372341aa178849a9479099b95c7d352 (patch) | |
| tree | ce5a939c07d84d05ea29be0458f51b2ed02af282 /trafgen_parser.y | |
| parent | e6fcf1f0f2c58cf38fad98d1d8b00a3b7ebd3070 (diff) | |
trafgen: proto: Add ICMPv4 header generation
Support for generating ICMPv4 headers using the 'icmp4()/icmpv4()'
trafgen generation functions.
Fields supported:
type Set type field (default 0: Echo reply)
Supported keywords: echorequest, echoreply
code Set code field (default 0)
csum Set checksum field (calculated by default)
mtu Set mtu field for destination unreachable (default 0)
seq Set sequence field (default 0)
id Set identifier field (default 0)
addr Set redirect address (default 0.0.0.0)
Example (send ping request):
{ icmpv4(echorequest, seq=1, id=1326) }
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: squash commits, consistency between functionality and docu]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'trafgen_parser.y')
| -rw-r--r-- | trafgen_parser.y | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/trafgen_parser.y b/trafgen_parser.y index adb7f5e..0fe8674 100644 --- a/trafgen_parser.y +++ b/trafgen_parser.y @@ -19,6 +19,7 @@ #include <libgen.h> #include <net/if_arp.h> #include <netinet/in.h> +#include <linux/icmp.h> #include <linux/if_ether.h> #include <linux/icmpv6.h> @@ -362,11 +363,13 @@ static void proto_add(enum proto_id pid) %token K_TPID K_TCI K_PCP K_DEI K_1Q K_1AD %token K_LABEL K_TC K_LAST K_EXP +%token K_ADDR K_MTU + %token K_ETH %token K_VLAN K_MPLS %token K_ARP %token K_IP4 K_IP6 -%token K_ICMP6 +%token K_ICMP4 K_ICMP6 %token K_UDP K_TCP %token ',' '{' '}' '(' ')' '[' ']' ':' '-' '+' '*' '/' '%' '&' '|' '<' '>' '^' @@ -594,6 +597,7 @@ proto | arp_proto { } | ip4_proto { } | ip6_proto { } + | icmp4_proto { } | icmpv6_proto { } | udp_proto { } | tcp_proto { } @@ -817,6 +821,41 @@ ip6 : K_IP6 { proto_add(PROTO_IP6); } ; +icmp4_proto + : icmp4 '(' icmp4_param_list ')' { } + ; + +icmp4_param_list + : { } + | icmp4_field { } + | icmp4_field delimiter icmp4_param_list { } + ; + +icmp4_field + : K_TYPE skip_white '=' skip_white number + { proto_field_set_u8(hdr, ICMPV4_TYPE, $5); } + | K_CODE skip_white '=' skip_white number + { proto_field_set_u8(hdr, ICMPV4_CODE, $5); } + | K_ID skip_white '=' skip_white number + { proto_field_set_be16(hdr, ICMPV4_ID, $5); } + | K_SEQ skip_white '=' skip_white number + { proto_field_set_be16(hdr, ICMPV4_SEQ, $5); } + | K_MTU skip_white '=' skip_white number + { proto_field_set_be16(hdr, ICMPV4_MTU, $5); } + | K_ADDR skip_white '=' skip_white ip4_addr + { proto_field_set_u32(hdr, ICMPV4_REDIR_ADDR, $5.s_addr); } + | K_ECHO_REQUEST + { proto_field_set_u8(hdr, ICMPV4_TYPE, ICMP_ECHO); + proto_field_set_u8(hdr, ICMPV4_CODE, 0); } + | K_ECHO_REPLY + { proto_field_set_u8(hdr, ICMPV4_TYPE, ICMP_ECHOREPLY); + proto_field_set_u8(hdr, ICMPV4_CODE, 0); } + ; + +icmp4 + : K_ICMP4 { proto_add(PROTO_ICMP4); } + ; + icmpv6_proto : icmp6 '(' icmp6_param_list ')' { } |