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authorMatthias Schiffer <mschiffer@universe-factory.net>2014-05-25 22:49:36 +0200
committerMatthias Schiffer <mschiffer@universe-factory.net>2014-05-25 22:49:36 +0200
commitc9da7ad1de089f109a3798ff19bede86348150aa (patch)
tree5d17a5ab7b52d9cfdef85319d24e32c716798497 /src/peer.h
parent5e72359e9a2f4008c408acbd3fe5d389e11a15b4 (diff)
downloadfastd-c9da7ad1de089f109a3798ff19bede86348150aa.tar
fastd-c9da7ad1de089f109a3798ff19bede86348150aa.zip
peer.h: some documentation
Diffstat (limited to 'src/peer.h')
-rw-r--r--src/peer.h83
1 files changed, 49 insertions, 34 deletions
diff --git a/src/peer.h b/src/peer.h
index 50e8a68..c44f599 100644
--- a/src/peer.h
+++ b/src/peer.h
@@ -23,70 +23,85 @@
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+/**
+ \file peer.h
+
+ Structures and functions for peer management
+*/
+
#pragma once
#include "fastd.h"
+/** The state of a peer */
typedef enum fastd_peer_state {
- STATE_INIT = 0,
- STATE_RESOLVING,
- STATE_HANDSHAKE,
- STATE_ESTABLISHED,
+ STATE_INIT = 0, /**< The peer peer was just created */
+ STATE_RESOLVING, /**< The peer is currently resolving its first remote */
+ STATE_HANDSHAKE, /**< The peer has tried to perform a handshake */
+ STATE_ESTABLISHED, /**< The peer has established a connection */
} fastd_peer_state_t;
+/** Dynamic state of a peer */
struct fastd_peer {
- uint64_t id;
+ uint64_t id; /**< A unique ID assigned to each peer */
- const fastd_peer_config_t *config;
- fastd_peer_group_t *group;
+ const fastd_peer_config_t *config; /**< The peer's fastd_peer_config_t */
+ fastd_peer_group_t *group; /**< The peer's peer group */
+ /** The socket used by the peer. This can either be a common bound socket or a
+ dynamic, unbound socket that is used exclusively by this peer */
fastd_socket_t *sock;
- fastd_peer_address_t local_address;
- fastd_peer_address_t address;
+ fastd_peer_address_t local_address; /**< The local address used to communicate with this peer */
+ fastd_peer_address_t address; /**< The peers current address */
- fastd_peer_state_t state;
- struct timespec timeout;
- struct timespec keepalive_timeout;
+ fastd_peer_state_t state; /**< The peer's state */
+ struct timespec timeout; /**< The timeout after which the peer is reset */
+ struct timespec keepalive_timeout; /**< The timeout after which a keepalive is sent to the peer */
- VECTOR(fastd_remote_t) remotes;
- ssize_t next_remote;
+ VECTOR(fastd_remote_t) remotes; /**< The vector of the peer's remotes */
+ ssize_t next_remote; /**< An index into the field remotes or -1 */
- struct timespec next_handshake;
- fastd_dlist_head_t handshake_entry;
+ struct timespec next_handshake; /**< The time of the next handshake */
+ fastd_dlist_head_t handshake_entry; /**< Entry in the handshake queue */
- struct timespec last_handshake_timeout;
- fastd_peer_address_t last_handshake_address;
+ struct timespec last_handshake_timeout; /**< No handshakes are sent to the peer until this timeout has occured to avoid flooding the peer */
+ fastd_peer_address_t last_handshake_address; /**< The address the last handshake was sent to */
- struct timespec last_handshake_response_timeout;
- fastd_peer_address_t last_handshake_response_address;
+ struct timespec last_handshake_response_timeout; /**< All handshakes from last_handshake_address will be ignored until this timeout has occured */
+ fastd_peer_address_t last_handshake_response_address; /**< The address the last handshake was received from */
- struct timespec establish_handshake_timeout;
+ struct timespec establish_handshake_timeout; /**< A timeout during which all handshakes for this peer will be ignored after a new connection has been established */
#ifdef WITH_VERIFY
- struct timespec verify_timeout;
- struct timespec verify_valid_timeout;
+ struct timespec verify_timeout; /**< Specifies the minimum time after which on-verify may be run again */
+ struct timespec verify_valid_timeout; /**< Specifies how long a peer stays valid after a successful on-verify run */
#endif
- fastd_protocol_peer_config_t *protocol_config;
- fastd_protocol_peer_state_t *protocol_state;
+ fastd_protocol_peer_config_t *protocol_config; /**< Protocol-specific peer configuration for config-less (on-verify) peers */
+ fastd_protocol_peer_state_t *protocol_state; /**< Protocol-specific peer state */
};
+/**
+ Static configuration of a peer
+
+ Peer configurations are kept in a linked list.
+*/
struct fastd_peer_config {
- fastd_peer_config_t *next;
+ fastd_peer_config_t *next; /**< The next peer configuration */
- const char *config_source_dir;
+ const char *config_source_dir; /**< The directory this peer's configuration was loaded from */
- bool enabled;
- char *name;
+ bool enabled; /**< Speficies if this peer was disabled because of a configuration error */
+ char *name; /**< The peer's name */
- fastd_remote_config_t *remotes;
- char *key;
- bool floating;
- const fastd_peer_group_config_t *group;
+ fastd_remote_config_t *remotes; /**< A linked list of the peer's remote entries */
+ char *key; /**< The peer's public key */
+ bool floating; /**< Specifies if the peer has any floating remotes (or no remotes at all) */
+ const fastd_peer_group_config_t *group; /**< The peer group the peer belongs to */
- fastd_protocol_peer_config_t *protocol_config;
+ fastd_protocol_peer_config_t *protocol_config; /**< The protocol-specific configuration of the peer */
};
struct fastd_peer_group {