broccoli

bro_debug_calltrace

extern int bro_debug_calltrace;

If you have debugging support built in (i.e., your package was configured with --enable-debugging), you can enable/disable debugging output for call tracing by setting this to 0 (off) or 1 (on). Default is "enabled".

bro_debug_messages

extern int bro_debug_messages;

If you have debugging support built in (i.e., your package was configured with --enable-debugging), you can enable/disable debugging messages by setting this to 0 (off) or 1 (on). Default is "enabled".

BroEventFunc ()

void        (*BroEventFunc)                 (BroConn *bc,
                                             ...);

This is the generic signature of callbacks for handling received Bro events. For details see bro_event_registry_add().

bro_conn_new ()

BroConn*    bro_conn_new                    (struct in_addr *ip_addr,
                                             uint16 port,
                                             int flags);

The function creates a new Bro connection handle for communication with Bro through a network. Depending on the flags passed in, the connection and its setup process can be adjusted. If you don't want to pass any flags, use BRO_CFLAG_NONE.

bro_conn_new_str ()

BroConn*    bro_conn_new_str                (const char *hostname,
                                             int flags);

The function is identical to bro_conn_new(), but allows you to specify the host and port to connect to in a string as "<hostname>:<port>". flags can be used to adjust the connection features and the setup process. If you don't want to pass any flags, use BRO_CFLAG_NONE.

bro_conn_set_class ()

void        bro_conn_set_class              (BroConn *bc,
                                             const char *classname);

Broccoli connections can indicate that they belong to a certain class of connections, which is needed primarily if multiple Bro/Broccoli instances are running on the same node and connect to a single remote peer. You can set this class with this function, and you have to do so before calling bro_connect() since the connection class is determined upon connection establishment. You remain responsible for the memory pointed to by classname.

bro_conn_get_peer_class ()

const char* bro_conn_get_peer_class         (const BroConn *bc);

bro_conn_connect ()

int         bro_conn_connect                (BroConn *bc);

The function attempts to set up and configure a connection to the peer configured when the connection handle was obtained.

bro_conn_alive ()

int         bro_conn_alive                  (const BroConn *bc);

This predicate reports whether the connection handle is currently usable for sending/receiving data or not, e.g. because the peer died. Note that the connection is also dead after the connection handle is obtained and before bro_conn_connect() is called.

bro_conn_delete ()

int         bro_conn_delete                 (BroConn *bc);

This function will terminate the given connection if necessary and release all resources associated with the connection handle.

bro_conn_adopt_events ()

void        bro_conn_adopt_events           (BroConn *src,
                                             BroConn *dst);

The function makes the connection identified by dst use the same event mask as the one identified by src.

bro_conn_get_fd ()

int         bro_conn_get_fd                 (BroConn *bc);

If you need to know the file descriptor of the connection (such as when select()ing it etc), use this accessor function.

bro_conn_process_input ()

int         bro_conn_process_input          (BroConn *bc);

The function reads all input sent to the local sensor by the Bro peering at the connection identified by bc. It is up to you to find a spot in the application you're instrumenting to make sure this is called. This function cannot block.

bro_conn_data_set ()

void        bro_conn_data_set               (BroConn *bc,
                                             const char *key,
                                             void *val);

The function stores val under name key in the connection handle bc. key is copied internally so you do not need to duplicate it before passing.

bro_conn_data_get ()

void*       bro_conn_data_get               (BroConn *bc,
                                             const char *key);

The function tries to look up the data item with name key and if found, returns it.

bro_conn_data_del ()

void*       bro_conn_data_del               (BroConn *bc,
                                             const char *key);

The function tries to remove the data item with name key.

bro_event_new ()

BroEvent*   bro_event_new                   (const char *event_name);

The function creates a new empty event with the given name and returns it.

bro_event_free ()

void        bro_event_free                  (BroEvent *be);

The function releases all memory associated with be. Note that you do NOT have to call this after sending an event.

bro_event_add_val ()

int         bro_event_add_val               (BroEvent *be,
                                             int type,
                                             const char *type_name,
                                             const void *val);

The function adds the given val to the argument list of event be. The type of val is derived from type, and may be specialized to the type named type_name. If type_name is not desired, use NULL.

bro_event_set_val ()

int         bro_event_set_val               (BroEvent *be,
                                             int val_num,
                                             int type,
                                             const char *type_name,
                                             const void *val);

The function replaces whatever value is currently stored in the event pointed to by be with the val specified through the type and val arguments. If the event does not currently hold enough values to replace one in position val_num, the function does nothing. If you want to indicate a type specialized from type, use type_name to give its name, otherwise pass NULL for type_name.

bro_event_send ()

int         bro_event_send                  (BroConn *bc,
                                             BroEvent *be);

The function tries to send be to the Bro agent connected through bc. Regardless of the outcome, you do NOT have to release the event afterwards using bro_event_free().

bro_event_queue_length ()

int         bro_event_queue_length          (BroConn *bc);

Use this function to find out how many events are currently queued on the client side.

bro_event_queue_flush ()

int         bro_event_queue_flush           (BroConn *bc);

The function tries to send as many queued events to the Bro agent as possible.

bro_event_registry_add ()

void        bro_event_registry_add          (BroConn *bc,
                                             const char *event_name,
                                             BroEventFunc func,
                                             void *user_data);

This function registers the callback func to be invoked when events of name event_name arrive on connection bc. user_data is passed along to the callback, which will receive it as the second parameter. You need to ensure that the memory user_data points to is valid during the time the callback might be invoked.

Note that this function only registers the callback in the state associated with bc. If you use bro_event_registry_add() and bc has not yet been connected via bro_conn_connect(), then no further action is required. bro_conn_connect() request ant registered event types. If however you are requesting additional event types after the connection has been established, then you also need to call bro_event_registry_request() in order to signal to the peering Bro that you want to receive those events.

bro_event_registry_remove ()

void        bro_event_registry_remove       (BroConn *bc,
                                             const char *event_name);

The function removes all callbacks for event event_name from the event registry for connection bc.

bro_event_registry_request ()

void        bro_event_registry_request      (BroConn *bc);

The function requests the events you have previously requested using bro_event_registry_add() from the Bro listening on bc.

bro_buf_new ()

BroBuf*     bro_buf_new                     (void);

bro_buf_free ()

void        bro_buf_free                    (BroBuf *buf);

The function releases all memory held by the buffer pointed to by buf. Use paired with bro_buf_new().

bro_buf_append ()

int         bro_buf_append                  (BroBuf *buf,
                                             void *data,
                                             int data_len);

The function appends data to the end of the buffer, enlarging it if necessary to hold the len new bytes. NOTE: it does not modify the buffer pointer. It only appends new data where buf_off is currently pointing and updates it accordingly. If you DO want the buffer pointer to be updated, have a look at bro_buf_ptr_write() instead.

bro_buf_consume ()

void        bro_buf_consume                 (BroBuf *buf);

The function removes the buffer contents between the start of the buffer and the point where the buffer pointer currently points to. The idea is that you call bro_buf_ptr_read() a few times to extract data from the buffer, and then call bro_buf_consume() to signal to the buffer that the extracted data are no longer needed inside the buffer.

bro_buf_reset ()

void        bro_buf_reset                   (BroBuf *buf);

The function resets the buffer pointers to the beginning of the currently allocated buffer, i.e., it marks the buffer as empty.

bro_buf_get ()

uchar*      bro_buf_get                     (BroBuf *buf);

bro_buf_get_end ()

uchar*      bro_buf_get_end                 (BroBuf *buf);

bro_buf_get_size ()

uint        bro_buf_get_size                (BroBuf *buf);

bro_buf_get_used_size ()

uint        bro_buf_get_used_size           (BroBuf *buf);

bro_buf_ptr_get ()

uchar*      bro_buf_ptr_get                 (BroBuf *buf);

bro_buf_ptr_tell ()

uint32      bro_buf_ptr_tell                (BroBuf *buf);

bro_buf_ptr_seek ()

int         bro_buf_ptr_seek                (BroBuf *buf,
                                             int offset,
                                             int whence);

The function adjusts the position of buf's content pointer. Call semantics are identical to fseek(), thus use offset to indicate the offset by which to jump and use SEEK_SET, SEEK_CUR, or SEEK_END to specify the position relative to which to adjust.

bro_buf_ptr_check ()

int         bro_buf_ptr_check               (BroBuf *buf,
                                             int size);

The function checks whether size bytes could be read from the buffer using bro_buf_ptr_read().

bro_buf_ptr_read ()

int         bro_buf_ptr_read                (BroBuf *buf,
                                             void *data,
                                             int size);

The function copies size bytes into data if the buffer has size bytes available from the current location of the buffer content pointer onward, incrementing the content pointer accordingly. If not, the function doesn't do anything. It behaves thus different from the normal read() in that it either copies the amount requested or nothing.

bro_buf_ptr_write ()

int         bro_buf_ptr_write               (BroBuf *buf,
                                             void *data,
                                             int size);

The function writes size bytes of the area pointed to by data into the buffer buf at the current location of its content pointer, adjusting the content pointer accordingly. If the buffer doesn't have enough space to receive size bytes, more space is allocated.

bro_conf_get_int ()

int         bro_conf_get_int                (const char *val_name,
                                             int *val);

The function tries to find an integer item named val_name in the configuration. If it is found, its value is placed into the int pointed to by val.

bro_conf_get_dbl ()

int         bro_conf_get_dbl                (const char *val_name,
                                             double *val);

The function tries to find a double float item named val_name in the configuration. If it is found, its value is placed into the double pointed to by val.

bro_conf_get_str ()

const char* bro_conf_get_str                (const char *val_name);

The function tries to find a string item named val_name in the configuration.

bro_conf_set_domain ()

void        bro_conf_set_domain             (const char *domain);

Broccoli's config files are divided into sections. At the beginning of each config file you can have an unnamed section that will be used by default. Case is irrelevant. By passing NULL for domain, you select the default domain, otherwise the one that matches domain. domain is copied internally.

bro_string_init ()

void        bro_string_init                 (BroString *bs);

The function initializes the BroString pointed to by bs. Use this function before using the members of a BroString you're using on the stack.

bro_string_set ()

int         bro_string_set                  (BroString *bs,
                                             const char *s);

The function initializes the BroString pointed to by bs to the string given in s. s's content is copied, so you can modify or free s after calling this, and you need to call bro_sting_cleanup() on the BroString pointed to by bs.

bro_string_set_data ()

int         bro_string_set_data             (BroString *bs,
                                             const uchar *data,
                                             int data_len);

The function initializes the BroString pointed to by bs to data_len bytes starting at data. data's content is copied, so you can modify or free data after calling this.

bro_string_get_data ()

const uchar* bro_string_get_data            (const BroString *bs);

The function returns a pointer to the string's internal data. You can copy out the string using this function in combination with bro_string_get_length(), for obtaining the string's length.

bro_string_get_length ()

uint32      bro_string_get_length           (const BroString *bs);

bro_string_copy ()

BroString*  bro_string_copy                 (BroString *bs);

bro_string_cleanup ()

void        bro_string_cleanup              (BroString *bs);

This function releases all contents claimed by the BroString pointed to by bs, without releasing that BroString structure itself. Use this when manipulating a BroString on the stack, paired with bro_string_init().

bro_string_free ()

void        bro_string_free                 (BroString *bs);

This function releases the entire BroString pointed to by bs, including the BroString structure itself.

bro_record_new ()

BroRecord*  bro_record_new                  (void);

The function allocates and initializes a new empty record. BroRecords are used for adding and retrieving records vals to/from events. You do not have to specify a record type separately when you create a record. The type is defined implicitly by the sequence of types formed by the sequence of vals added to the record, along with the names for each val. See the manual for details.

bro_record_free ()

void        bro_record_free                 (BroRecord *rec);

The function releases all memory consumed by the record pointed to by rec.

bro_record_add_val ()

int         bro_record_add_val              (BroRecord *rec,
                                             const char *name,
                                             int type,
                                             const char *type_name,
                                             const void *val);

The function adds a new field to the record pointed to by rec and assigns the value passed in to that field. The field name is given in name, the type of the val is given in type and must be one of the BRO_TYPE_xxx constants defined in broccoli.h. The type you give implies what data type val must be pointing to; see the manual for details. If you want to indicate a type specialized from type, use type_name to give its name, otherwise pass NULL for type_name. It is possible to leave fields unassigned, in that case, pass in NULL for val.

bro_record_get_nth_val ()

void*       bro_record_get_nth_val          (BroRecord *rec,
                                             int num,
                                             int type);

The function returns the num'th value of the record pointed to by rec, expected to be of type. The returned value is internal and needs to be duplicated if you want to keep it around. type signals what type is expected. See the manual for details.

bro_record_get_named_val ()

void*       bro_record_get_named_val        (BroRecord *rec,
                                             const char *name,
                                             int type);

The function returns the value of the field named name in the record pointed to by rec. The returned value is internal and needs to be duplicated if you want to keep it around. type signals what kind of type is expected. See the manual for details.

bro_record_set_nth_val ()

int         bro_record_set_nth_val          (BroRecord *rec,
                                             int num,
                                             int type,
                                             const char *type_name,
                                             const void *val);

The function replaces the num'th value of the record pointed to by rec, expected to be of type. All values are copied internally so what val points to stays unmodified. The value of type implies what result must be pointing to. See the manual for details. If you want to indicate a type specialized from type, use type_name to give its name, otherwise pass NULL for type_name.

bro_record_set_named_val ()

int         bro_record_set_named_val        (BroRecord *rec,
                                             const char *name,
                                             int type,
                                             const char *type_name,
                                             const void *val);

The function replaces the value named name in the record pointed to by rec, expected to be of type. All values are copied internally so what val points to stays unmodified. The value of type implies what result must be pointing to. See the manual for details. If you want to indicate a type specialized from type, use type_name to give its name, otherwise pass NULL for type_name.

bro_conn_set_packet_ctxt ()

void        bro_conn_set_packet_ctxt        (BroConn *bc,
                                             int link_type);

The function sets the packet context for bc for future BroPackets handled by this connection.

bro_conn_get_packet_ctxt ()

void        bro_conn_get_packet_ctxt        (BroConn *bc,
                                             int *link_type);

The function returns bc's current packet context through link_type.

bro_packet_new ()

BroPacket*  bro_packet_new                  (const struct pcap_pkthdr *hdr,
                                             const u_char *data,
                                             const char *tag);

The function creates a new BroPacket by copying hdr and data internally. Release the resulting packet using bro_packet_free().

bro_packet_clone ()

BroPacket*  bro_packet_clone                (const BroPacket *packet);

bro_packet_free ()

void        bro_packet_free                 (BroPacket *packet);

The function releases all memory occupied by a packet previously allocated using bro_packet_new().

bro_packet_send ()

int         bro_packet_send                 (BroConn *bc,
                                             BroPacket *packet);

The function sends packet to the Bro peer connected via bc.

bro_util_current_time ()

double      bro_util_current_time           (void);

bro_util_timeval_to_double ()

double      bro_util_timeval_to_double      (const struct timeval *tv);