FD.io VPP
v18.01.2-1-g9b554f3
Vector Packet Processing
|
Go to the source code of this file.
Typedefs | |
typedef struct _session_rule_add_del_args | session_rule_add_del_args_t |
Variables | |
enum _session_rule_scope | session_rule_scope_e |
typedef struct _session_rule_add_del_args session_rule_add_del_args_t |
int session_lookup_add_connection | ( | transport_connection_t * | tc, |
u64 | value | ||
) |
Add transport connection to a session table.
Session lookup 5-tuple (src-ip, dst-ip, src-port, dst-port, session-type) is added to requested session table.
tc | transport connection to be added |
value | value to be stored |
Definition at line 264 of file session_lookup.c.
int session_lookup_add_half_open | ( | transport_connection_t * | tc, |
u64 | value | ||
) |
Definition at line 733 of file session_lookup.c.
int session_lookup_add_session_endpoint | ( | u32 | table_index, |
session_endpoint_t * | sep, | ||
u64 | value | ||
) |
Definition at line 290 of file session_lookup.c.
transport_connection_t* session_lookup_connection4 | ( | u32 | fib_index, |
ip4_address_t * | lcl, | ||
ip4_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto | ||
) |
Lookup connection with ip4 and transport layer information.
Not optimized. This is used on the fast path so it needs to be fast. Thereby, duplication of code and 'hacks' allowed. Lookup logic is identical to that of session_lookup_connection_wt4
fib_index | index of the fib wherein the connection was received |
lcl | local ip4 address |
rmt | remote ip4 address |
lcl_port | local port |
rmt_port | remote port |
proto | transport protocol (e.g., tcp, udp) |
Definition at line 930 of file session_lookup.c.
transport_connection_t* session_lookup_connection6 | ( | u32 | fib_index, |
ip6_address_t * | lcl, | ||
ip6_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto | ||
) |
Lookup connection with ip6 and transport layer information.
Not optimized. This is used on the fast path so it needs to be fast. Thereby, duplication of code and 'hacks' allowed. Lookup logic is identical to that of session_lookup_connection_wt4
fib_index | index of the fib wherein the connection was received |
lcl | local ip6 address |
rmt | remote ip6 address |
lcl_port | local port |
rmt_port | remote port |
proto | transport protocol (e.g., tcp, udp) |
Definition at line 1139 of file session_lookup.c.
transport_connection_t* session_lookup_connection_wt4 | ( | u32 | fib_index, |
ip4_address_t * | lcl, | ||
ip4_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto, | ||
u32 | thread_index, | ||
u8 * | is_filtered | ||
) |
Lookup connection with ip4 and transport layer information.
This is used on the fast path so it needs to be fast. Thereby, duplication of code and 'hacks' allowed.
The lookup is incremental and returns whenever something is matched. The steps are:
fib_index | index of fib wherein the connection was received |
lcl | local ip4 address |
rmt | remote ip4 address |
lcl_port | local port |
rmt_port | remote port |
proto | transport protocol (e.g., tcp, udp) |
thread_index | thread index for request |
is_filtered | return flag that indicates if connection was filtered. |
Definition at line 853 of file session_lookup.c.
transport_connection_t* session_lookup_connection_wt6 | ( | u32 | fib_index, |
ip6_address_t * | lcl, | ||
ip6_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto, | ||
u32 | thread_index, | ||
u8 * | is_filtered | ||
) |
Lookup connection with ip6 and transport layer information.
This is used on the fast path so it needs to be fast. Thereby, duplication of code and 'hacks' allowed.
The lookup is incremental and returns whenever something is matched. The steps are:
fib_index | index of the fib wherein the connection was received |
lcl | local ip6 address |
rmt | remote ip6 address |
lcl_port | local port |
rmt_port | remote port |
proto | transport protocol (e.g., tcp, udp) |
thread_index | thread index for request |
Definition at line 1071 of file session_lookup.c.
int session_lookup_del_connection | ( | transport_connection_t * | tc | ) |
Delete transport connection from session table.
table_index | session table index |
tc | transport connection to be removed |
Definition at line 350 of file session_lookup.c.
int session_lookup_del_half_open | ( | transport_connection_t * | tc | ) |
Definition at line 759 of file session_lookup.c.
int session_lookup_del_session | ( | stream_session_t * | s | ) |
Definition at line 374 of file session_lookup.c.
int session_lookup_del_session_endpoint | ( | u32 | table_index, |
session_endpoint_t * | sep | ||
) |
Definition at line 317 of file session_lookup.c.
u64 session_lookup_endpoint_listener | ( | u32 | table_index, |
session_endpoint_t * | sep, | ||
u8 | use_rules | ||
) |
Lookup listener for session endpoint in table.
table_index | table where the endpoint should be looked up |
sep | session endpoint to be looked up |
use_rules | flag that indicates if the session rules of the table should be used |
Definition at line 469 of file session_lookup.c.
stream_session_t* session_lookup_global_session_endpoint | ( | session_endpoint_t * | ) |
transport_connection_t* session_lookup_half_open_connection | ( | u64 | handle, |
u8 | proto, | ||
u8 | is_ip4 | ||
) |
Definition at line 814 of file session_lookup.c.
u64 session_lookup_half_open_handle | ( | transport_connection_t * | tc | ) |
Definition at line 783 of file session_lookup.c.
void session_lookup_init | ( | void | ) |
Definition at line 1654 of file session_lookup.c.
stream_session_t* session_lookup_listener | ( | u32 | table_index, |
session_endpoint_t * | sep | ||
) |
Definition at line 717 of file session_lookup.c.
stream_session_t* session_lookup_listener4 | ( | u32 | fib_index, |
ip4_address_t * | lcl, | ||
u16 | lcl_port, | ||
u8 | proto | ||
) |
stream_session_t* session_lookup_listener6 | ( | u32 | fib_index, |
ip6_address_t * | lcl, | ||
u16 | lcl_port, | ||
u8 | proto | ||
) |
Definition at line 706 of file session_lookup.c.
u32 session_lookup_local_endpoint | ( | u32 | table_index, |
session_endpoint_t * | sep | ||
) |
Look up endpoint in local session table.
The result, for now, is an application index and it may in the future be extended to a more complicated "action object". The only action we emulate now is "drop" and for that we return a special app index.
Lookup logic is to check in order:
table_index | table where the lookup should be done |
sep | session endpoint to be looked up |
Definition at line 541 of file session_lookup.c.
u64 session_lookup_local_listener_make_handle | ( | session_endpoint_t * | sep | ) |
int session_lookup_local_listener_parse_handle | ( | u64 | handle, |
session_endpoint_t * | sep | ||
) |
stream_session_t* session_lookup_safe4 | ( | u32 | fib_index, |
ip4_address_t * | lcl, | ||
ip4_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto | ||
) |
Lookup session with ip4 and transport layer information.
Important note: this may look into another thread's pool table and register as 'peeker'. Caller should call session_pool_remove_peeker as if needed as soon as possible.
Lookup logic is similar to that of session_lookup_connection_wt4 but this returns a session as opposed to a transport connection and it does not try to lookup half-open sessions.
Typically used by dgram connections
Definition at line 1002 of file session_lookup.c.
stream_session_t* session_lookup_safe6 | ( | u32 | fib_index, |
ip6_address_t * | lcl, | ||
ip6_address_t * | rmt, | ||
u16 | lcl_port, | ||
u16 | rmt_port, | ||
u8 | proto | ||
) |
Lookup session with ip6 and transport layer information.
Important note: this may look into another thread's pool table and register as 'peeker'. Caller should call session_pool_remove_peeker as if needed as soon as possible.
Lookup logic is similar to that of session_lookup_connection_wt6 but this returns a session as opposed to a transport connection and it does not try to lookup half-open sessions.
Typically used by dgram connections
Definition at line 1202 of file session_lookup.c.
void session_lookup_set_tables_appns | ( | app_namespace_t * | app_ns | ) |
Mark (global) tables as pertaining to app ns.
Definition at line 1316 of file session_lookup.c.
void session_lookup_show_table_entries | ( | vlib_main_t * | vm, |
session_table_t * | table, | ||
u8 | type, | ||
u8 | is_local | ||
) |
Definition at line 1378 of file session_lookup.c.
clib_error_t* vnet_session_rule_add_del | ( | session_rule_add_del_args_t * | args | ) |
Definition at line 1269 of file session_lookup.c.
enum _session_rule_scope session_rule_scope_e |