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https://gitlab.nic.cz/labs/bird.git
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Better documentation. There are functions whose description is good when
reading source but whose documentation does not belong to progdocs.
This commit is contained in:
Pavel Machek
parent
22080a8640
commit
4c5f93d76b
@ -30,7 +30,8 @@
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* forced. Important thing about &f_val s is that they may be copied
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* with simple =. That's fine for all currently defined types: strings
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* are read-only (and therefore okay), paths are copied for each
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* operation (okay too). */
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* operation (okay too).
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*/
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#undef LOCAL_DEBUG
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@ -70,7 +71,7 @@ pm_path_compare(struct f_path_mask *m1, struct f_path_mask *m2)
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}
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}
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/**
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/*
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* val_compare - compare two values, returns -1, 0, 1 on <, =, > and 999 on error
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*/
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int
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@ -105,7 +106,7 @@ val_compare(struct f_val v1, struct f_val v2)
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}
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}
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/**
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/*
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* val_simple_in_range - check if @v1 ~ @v2 for everything except sets
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*/
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int
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@ -139,7 +140,7 @@ val_simple_in_range(struct f_val v1, struct f_val v2)
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return CMP_ERROR;
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}
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/**
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/*
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* val_in_range - check if @v1 ~ @v2
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*/
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int
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@ -183,7 +184,7 @@ tree_print(struct f_tree *t)
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debug( "] " );
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}
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/**
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/*
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* val_print - format filter value
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*/
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void
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@ -218,7 +219,7 @@ static struct ea_list **f_tmp_attrs;
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static int f_flags;
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static rta *f_rta_copy;
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/**
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/*
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* rta_cow - prepare rta for modification by filter
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*/
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void
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@ -257,7 +258,7 @@ rta_cow(void)
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* interpret
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* @what: filter to interrpret
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*
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* Interrpret given tree of filter instructions. This is core function
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* Interpret given tree of filter instructions. This is core function
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* of filter system and does all the hard work.
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*/
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static struct f_val
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@ -681,7 +682,7 @@ interpret(struct f_inst *what)
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#define A2_SAME if (f1->a2.i != f2->a2.i) return 0;
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/**
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/*
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* i_same - function that does real comparing of instruction trees, you should call filter_same from outside
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*/
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int
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@ -765,8 +766,10 @@ i_same(struct f_inst *f1, struct f_inst *f2)
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/**
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* f_run - external entry point to filters
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* @filter: pointer to filter to run
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* @tmp_attrs: where to store newly generated temporary attributes
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* @rte: pointer to pointer to rte being filtered. When route is modified, this is changed with rte_cow.
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* @tmp_pool: all filter allocations go from this pool
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* @flags: flags
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*/
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int
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f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struct linpool *tmp_pool, int flags)
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@ -26,7 +26,7 @@
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#define PACKETLEN(num) (num * sizeof(struct rip_block) + sizeof(struct rip_packet_heading))
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/**
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/*
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* rip_incoming_authentication - check authentication of incomming packet and return 1 if there's problem.
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*/
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int
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@ -110,7 +110,7 @@ rip_incoming_authentication( struct proto *p, struct rip_block_auth *block, stru
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return 0;
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}
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/**
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/*
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* rip_outgoing_authentication - append authentication information to the packet.
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* %num: number of rip_blocks already in packets. This function returns size of packet to send.
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*/
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@ -22,7 +22,11 @@
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*
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* Rip is pretty simple protocol so half of this code is interface
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* with core. We maintain our own linklist of &rip_entry - it serves
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* as our small routing table. Within rip_tx(), this list is
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* as our small routing table. Rip never adds into this linklist at
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* packet reception; instead, it lets core know about data from packet,
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* and waits for core to call our rip_rte_notify.
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*
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* Within rip_tx(), this list is
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* walked, and packet is generated using rip_tx_prepare(). This gets
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* tricky because we may need to send more than one packet to one
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* destination. Struct &rip_connection is used to hold info such as how
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@ -65,7 +69,7 @@ static struct rip_interface *new_iface(struct proto *p, struct iface *new, unsig
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#define P_NAME p->name
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/**
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/*
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* DOC: Output processing
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*
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* This part is responsible for getting packets out to the network.
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@ -79,7 +83,7 @@ rip_tx_err( sock *s, int err )
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log( L_ERR "%s: Unexpected error at rip transmit: %M", P_NAME, err );
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}
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/**
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/*
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* rip_tx_prepare:
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* @e: rip entry that needs to be translated to form suitable for network
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* @b: block to be filled
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@ -117,7 +121,7 @@ rip_tx_prepare(struct proto *p, ip_addr daddr, struct rip_block *b, struct rip_e
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return pos+1;
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}
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/**
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/*
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* rip_tx - send one rip packet to the network
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*/
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static void
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@ -195,7 +199,7 @@ done:
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return;
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}
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/**
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/*
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* rip_sendto - send whole routing table to selected destination
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* @rif: interface to use. Notice that we lock interface so that at
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* most one send to one interface is done.
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@ -246,7 +250,7 @@ find_interface(struct proto *p, struct iface *what)
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return NULL;
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}
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/**
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/*
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* DOC: Input processing
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*
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* This part is responsible for any updates that come from network
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@ -262,13 +266,12 @@ rip_rte_update_if_better(rtable *tab, net *net, struct proto *p, rte *new)
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rte_update(tab, net, p, new);
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}
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/**
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/*
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* advertise_entry - let main routing table know about our new entry
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* @b: entry in network format
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*
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* This basically translates @b to format used by bird core and feeds
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* bird core with this route. Notice that we do not store info anywhere
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* in our data structures: we'll do that when core notifies us back.
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* bird core with this route.
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*/
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static void
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advertise_entry( struct proto *p, struct rip_block *b, ip_addr whotoldme )
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@ -334,7 +337,7 @@ advertise_entry( struct proto *p, struct rip_block *b, ip_addr whotoldme )
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DBG( "done\n" );
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}
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/**
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/*
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* process_block - do some basic check and pass block to advertise_entry
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*/
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static void
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@ -360,7 +363,7 @@ process_block( struct proto *p, struct rip_block *block, ip_addr whotoldme )
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#define BAD( x ) { log( L_REMOTE "%s: " x, P_NAME ); return 1; }
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/**
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/*
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* rip_process_packet - this is main routine for incoming packets.
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*/
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static int
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@ -430,7 +433,7 @@ rip_process_packet( struct proto *p, struct rip_packet *packet, int num, ip_addr
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return 0;
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}
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/**
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/*
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* rip_rx - Receive hook: do basic checks and pass packet to rip_process_packet
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*/
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static int
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@ -462,7 +465,7 @@ rip_rx(sock *s, int size)
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return 1;
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}
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/**
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/*
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* DOC: Interface to bird core
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*/
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@ -475,8 +478,16 @@ rip_dump_entry( struct rip_entry *e )
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}
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/**
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* rip_timer - broadcast routing tables periodically (using rip_tx) and kill routes that are too old
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* rip_timer
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* @t: timer
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*
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* Broadcast routing tables periodically (using rip_tx) and kill
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* routes that are too old. Rip keeps its own entries in main routing
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* table linked by link list (functions rip_rte_insert and
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* rip_rte_delete are responsible for that), walks this list in timer
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* and in case entry is too old, it is discarded.
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*/
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static void
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rip_timer(timer *t)
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{
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@ -530,7 +541,7 @@ rip_timer(timer *t)
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DBG( "RIP: tick tock done\n" );
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}
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/**
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/*
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* rip_start - initialize instance of rip
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*/
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static int
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@ -623,10 +634,15 @@ kill_iface(struct proto *p, struct rip_interface *i)
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}
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/**
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* new_iface - actually create struct interface and start listening to it
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* new_iface
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* @p: myself
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* @new: interface to be created or %NULL if we are creating magic
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* socket. Magic socket is used for listening, and is also used for
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* sending requested responses.
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* @flags: interface flags
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* @patt: pattern this interface matched, used for access to config options
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*
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* actually create struct interface and start listening to it
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*/
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static struct rip_interface *
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new_iface(struct proto *p, struct iface *new, unsigned long flags, struct iface_patt *patt )
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@ -810,7 +826,7 @@ rip_store_tmp_attrs(struct rte *rt, struct ea_list *attrs)
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rt->u.rip.metric = ea_get_int(attrs, EA_RIP_METRIC, 1);
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}
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/**
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/*
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* rip_rt_notify - core tells us about new route (possibly our
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* own), so store it into our data structures.
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*/
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@ -882,7 +898,7 @@ rip_rte_better(struct rte *new, struct rte *old)
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return 0;
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}
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/**
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/*
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* rip_rte_insert - we maintain linked list of "our" entries in main
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* routing table, so that we can timeout them correctly. rip_timer
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* walks the list.
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@ -897,7 +913,7 @@ rip_rte_insert(net *net, rte *rte)
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add_head( &P->garbage, &rte->u.rip.garbage );
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}
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/**
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/*
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* rip_rte_remove - link list maintenance
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*/
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static void
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