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core: add hashing to IP config objects

Browse source 
We'll use this later to determine whether sets of IPxConfig
objects have actually changed without comparing them all
at once.
This commit is contained in:
Dan Williams 2012-05-29 22:24:51 -05:00
parent 9966ac45fa
commit 90fb53de4c
4 changed files with 125 additions and 0 deletions
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62
src/nm-ip4-config.c
View file

@ -813,6 +813,68 @@ nm_ip4_config_diff (NMIP4Config *a, NMIP4Config *b)
return flags;
}
static inline void
hash_u32 (GChecksum *sum, guint32 n)
{
g_checksum_update (sum, (const guint8 *) &n, sizeof (n));
}
void
nm_ip4_config_hash (NMIP4Config *config, GChecksum *sum, gboolean dns_only)
{
guint32 i, n;
const char *s;
g_return_if_fail (config != NULL);
g_return_if_fail (sum != NULL);
if (dns_only == FALSE) {
for (i = 0; i < nm_ip4_config_get_num_addresses (config); i++) {
NMIP4Address *a = nm_ip4_config_get_address (config, i);
hash_u32 (sum, nm_ip4_address_get_address (a));
hash_u32 (sum, nm_ip4_address_get_prefix (a));
hash_u32 (sum, nm_ip4_address_get_gateway (a));
}
for (i = 0; i < nm_ip4_config_get_num_routes (config); i++) {
NMIP4Route *r = nm_ip4_config_get_route (config, i);
hash_u32 (sum, nm_ip4_route_get_dest (r));
hash_u32 (sum, nm_ip4_route_get_prefix (r));
hash_u32 (sum, nm_ip4_route_get_next_hop (r));
hash_u32 (sum, nm_ip4_route_get_metric (r));
}
n = nm_ip4_config_get_ptp_address (config);
if (n)
hash_u32 (sum, n);
for (i = 0; i < nm_ip4_config_get_num_nis_servers (config); i++)
hash_u32 (sum, nm_ip4_config_get_nis_server (config, i));
s = nm_ip4_config_get_nis_domain (config);
if (s)
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
for (i = 0; i < nm_ip4_config_get_num_nameservers (config); i++)
hash_u32 (sum, nm_ip4_config_get_nameserver (config, i));
for (i = 0; i < nm_ip4_config_get_num_wins (config); i++)
hash_u32 (sum, nm_ip4_config_get_wins (config, i));
for (i = 0; i < nm_ip4_config_get_num_domains (config); i++) {
s = nm_ip4_config_get_domain (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
for (i = 0; i < nm_ip4_config_get_num_searches (config); i++) {
s = nm_ip4_config_get_search (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
}
static void
nm_ip4_config_init (NMIP4Config *config)
{

2
src/nm-ip4-config.h
View file

@ -139,4 +139,6 @@ typedef enum {
/* Returns a bitfield representing how the two IP4 configs differ */
NMIP4ConfigCompareFlags nm_ip4_config_diff (NMIP4Config *a, NMIP4Config *b);
void nm_ip4_config_hash (NMIP4Config *config, GChecksum *sum, gboolean dns_only);
#endif /* NM_IP4_CONFIG_H */

59
src/nm-ip6-config.c
View file

@ -677,6 +677,65 @@ nm_ip6_config_diff (NMIP6Config *a, NMIP6Config *b)
return flags;
}
static inline void
hash_u32 (GChecksum *sum, guint32 n)
{
g_checksum_update (sum, (const guint8 *) &n, sizeof (n));
}
static inline void
hash_in6addr (GChecksum *sum, const struct in6_addr *a)
{
g_checksum_update (sum, (const guint8 *) a, sizeof (*a));
}
void
nm_ip6_config_hash (NMIP6Config *config, GChecksum *sum, gboolean dns_only)
{
guint32 i;
const struct in6_addr *in6a;
const char *s;
g_return_if_fail (config != NULL);
g_return_if_fail (sum != NULL);
if (dns_only == FALSE) {
for (i = 0; i < nm_ip6_config_get_num_addresses (config); i++) {
NMIP6Address *a = nm_ip6_config_get_address (config, i);
hash_in6addr (sum, nm_ip6_address_get_address (a));
hash_u32 (sum, nm_ip6_address_get_prefix (a));
hash_in6addr (sum, nm_ip6_address_get_gateway (a));
}
for (i = 0; i < nm_ip6_config_get_num_routes (config); i++) {
NMIP6Route *r = nm_ip6_config_get_route (config, i);
hash_in6addr (sum, nm_ip6_route_get_dest (r));
hash_u32 (sum, nm_ip6_route_get_prefix (r));
hash_in6addr (sum, nm_ip6_route_get_next_hop (r));
hash_u32 (sum, nm_ip6_route_get_metric (r));
}
in6a = nm_ip6_config_get_ptp_address (config);
if (in6a)
hash_in6addr (sum, in6a);
}
for (i = 0; i < nm_ip6_config_get_num_nameservers (config); i++)
hash_in6addr (sum, nm_ip6_config_get_nameserver (config, i));
for (i = 0; i < nm_ip6_config_get_num_domains (config); i++) {
s = nm_ip6_config_get_domain (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
for (i = 0; i < nm_ip6_config_get_num_searches (config); i++) {
s = nm_ip6_config_get_search (config, i);
g_checksum_update (sum, (const guint8 *) s, strlen (s));
}
}
static void
nm_ip6_config_init (NMIP6Config *config)
{

2
src/nm-ip6-config.h
View file

@ -120,4 +120,6 @@ typedef enum {
/* Returns a bitfield representing how the two IP6 configs differ */
NMIP6ConfigCompareFlags nm_ip6_config_diff (NMIP6Config *a, NMIP6Config *b);
void nm_ip6_config_hash (NMIP6Config *config, GChecksum *sum, gboolean dns_only);
#endif /* NM_IP6_CONFIG_H */