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Implemented SLPD information expiration and added support for port

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This commit is contained in:
thorkill 2016-05-17 14:46:19 +02:00
parent e567374a5d
commit ff8f57c130
4 changed files with 25 additions and 3 deletions
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5
src/conf.h
View file

@ -25,8 +25,9 @@
#include "splay_tree.h"
#include "subnet.h"
#define DEFAULT_SLPD_GROUP "ff02::42:1"
#define DEFAULT_SLPD_PORT "1655"
#define DEFAULT_SLPD_GROUP "ff02::42:1"
#define DEFAULT_SLPD_PORT "1655"
#define DEFAULT_SLPD_EXPIRE 300
typedef struct config_t {
char *variable;

15
src/net_packet.c
View file

@ -72,6 +72,7 @@ bool udp_discovery = true;
int udp_discovery_keepalive_interval = 10;
int udp_discovery_interval = 2;
int udp_discovery_timeout = 30;
extern int my_slpd_expire;
#define MAX_SEQNO 1073741824
@ -1540,6 +1541,16 @@ static void handle_incoming_slpd_packet(listen_socket_t *ls, void *pkt, struct s
return;
}
if (n->slpd_address != NULL) {
if (now.tv_sec - n->slpd_active_since.tv_sec < my_slpd_expire) {
return;
} else {
logger(DEBUG_ALWAYS, LOG_ERR, "Expire SLPD for %s", n->name);
free_config(n->slpd_address);
n->slpd_address = NULL;
}
}
if (!n->ecdsa)
node_read_ecdsa_public_key(n);
@ -1564,6 +1575,7 @@ static void handle_incoming_slpd_packet(listen_socket_t *ls, void *pkt, struct s
}
config_t *cfg = NULL;
if (!n->slpd_address) {
char iface_name[255] = { 0 };
char fullhost[255] = { 0 };
@ -1572,13 +1584,14 @@ static void handle_incoming_slpd_packet(listen_socket_t *ls, void *pkt, struct s
cfg = new_config();
cfg->variable = xstrdup("Address");
snprintf(fullhost, 254, "%s%%%s", addrstr, iface_name);
snprintf(fullhost, 254, "%s%%%s %d", addrstr, iface_name, port);
cfg->value = xstrdup(fullhost);
cfg->file = NULL;
cfg->line = -1;
logger(DEBUG_ALWAYS, LOG_ERR, "Discovered %s on %s", nodename , fullhost);
n->slpd_address = cfg;
n->slpd_active_since = now;
n->status.has_address = true;
}
} else {

7
src/net_setup.c
View file

@ -51,6 +51,7 @@
char *myport;
char *my_slpd_port;
char *my_slpd_group;
int my_slpd_expire;
static char *myname;
static io_t device_io;
devops_t devops;
@ -928,6 +929,12 @@ static bool setup_myself(void) {
if(!get_config_string(lookup_config(config_tree, "SLPDGroup"), &my_slpd_group))
my_slpd_group = xstrdup(DEFAULT_SLPD_GROUP);
char *tmp_expire;
if(!get_config_string(lookup_config(config_tree, "SLPDExpire"), &tmp_expire))
my_slpd_expire = DEFAULT_SLPD_EXPIRE;
else
my_slpd_expire = atoi(tmp_expire);
myself->connection->options = 0;
myself->connection->protocol_major = PROT_MAJOR;
myself->connection->protocol_minor = PROT_MINOR;

1
src/node.h
View file

@ -83,6 +83,7 @@ typedef struct node_t {
struct connection_t *connection; /* Connection associated with this node (if a direct connection exists) */
struct config_t *slpd_address; /* Address we learned via SLPD */
struct timeval slpd_active_since; /* Last time a (gratuitous) UDP probe reply was sent */
uint32_t sent_seqno; /* Sequence number last sent to this node */
uint32_t received_seqno; /* Sequence number last received from this node */
uint32_t received; /* Total valid packets received from this node */