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Refactor port_cfg_t creation into a port_cfg_new() function

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This function gives us a single place to set reasonable default flags
for port_cfg_t entries, to avoid bugs like the one where we weren't
setting ipv4_traffic_ok to 1 on SocksPorts initialized in an older
way.
This commit is contained in:
Nick Mathewson 2012-11-25 14:57:10 -05:00
parent 522e90d661
commit 7315a67646
1 changed files with 16 additions and 9 deletions
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25
src/or/config.c
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@ -678,7 +678,7 @@ config_free_all(void)
if (configured_ports) {
SMARTLIST_FOREACH(configured_ports,
port_cfg_t *, p, tor_free(p));
port_cfg_t *, p, port_cfg_free(p));
smartlist_free(configured_ports);
configured_ports = NULL;
}
@ -4589,6 +4589,17 @@ parse_dir_fallback_line(const char *line,
return r;
}
/** Allocate and return a new port_cfg_t with reasonable defaults. */
static port_cfg_t *
port_cfg_new(void)
{
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
cfg->ipv4_traffic = 1;
cfg->cache_ipv4_answers = 1;
cfg->use_cached_ipv4_answers = 1;
return cfg;
}
/** Free all storage held in <b>port</b> */
static void
port_cfg_free(port_cfg_t *port)
@ -4763,7 +4774,7 @@ parse_port_config(smartlist_t *out,
if (use_server_options && out) {
/* Add a no_listen port. */
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
port_cfg_t *cfg = port_cfg_new();
cfg->type = listener_type;
cfg->port = mainport;
tor_addr_make_unspec(&cfg->addr); /* Server ports default to 0.0.0.0 */
@ -4782,15 +4793,13 @@ parse_port_config(smartlist_t *out,
return -1;
}
if (out) {
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
port_cfg_t *cfg = port_cfg_new();
cfg->type = listener_type;
cfg->port = port ? port : mainport;
tor_addr_copy(&cfg->addr, &addr);
cfg->session_group = SESSION_GROUP_UNSET;
cfg->isolation_flags = ISO_DEFAULT;
cfg->no_advertise = 1;
cfg->ipv4_traffic = 1;
cfg->cache_ipv4_answers = cfg->use_cached_ipv4_answers = 1;
smartlist_add(out, cfg);
}
}
@ -4808,14 +4817,12 @@ parse_port_config(smartlist_t *out,
* one. */
if (! ports) {
if (defaultport && out) {
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
port_cfg_t *cfg = port_cfg_new();
cfg->type = listener_type;
cfg->port = defaultport;
tor_addr_parse(&cfg->addr, defaultaddr);
cfg->session_group = SESSION_GROUP_UNSET;
cfg->isolation_flags = ISO_DEFAULT;
cfg->ipv4_traffic = 1;
cfg->cache_ipv4_answers = cfg->use_cached_ipv4_answers = 1;
smartlist_add(out, cfg);
}
return 0;
@ -5033,7 +5040,7 @@ parse_port_config(smartlist_t *out,
}
if (out && port) {
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
port_cfg_t *cfg = port_cfg_new();
tor_addr_copy(&cfg->addr, &addr);
cfg->port = port;
cfg->type = listener_type;