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lifecycle: separate environment building into build_environment()

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This commit is contained in:
Ariadne Conill 2020-07-29 02:24:10 -06:00
parent e4c3c4e06e
commit edfb91c05f
1 changed files with 79 additions and 81 deletions
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160
libifupdown/lifecycle.c
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@ -95,6 +95,81 @@ query_dependents_from_executors(const struct lif_execute_opts *opts, char *const
return true;
}
static void
build_environment(char **envp[], const struct lif_execute_opts *opts, struct lif_interface *iface, const char *lifname, const char *phase, const char *mode)
{
if (lifname == NULL)
lifname = iface->ifname;
lif_environment_push(envp, "IFACE", lifname);
lif_environment_push(envp, "PHASE", phase);
lif_environment_push(envp, "MODE", mode);
/* try to provide $METHOD for ifupdown1 scripts if we can */
if (iface->is_dhcp)
lif_environment_push(envp, "METHOD", "dhcp");
if (opts->verbose)
lif_environment_push(envp, "VERBOSE", "1");
if (opts->interfaces_file)
lif_environment_push(envp, "INTERFACES_FILE", opts->interfaces_file);
struct lif_node *iter;
bool did_address = false, did_gateway = false;
LIF_DICT_FOREACH(iter, &iface->vars)
{
struct lif_dict_entry *entry = iter->data;
if (!strcmp(entry->key, "address"))
{
if (did_address)
continue;
struct lif_address *addr = entry->data;
char addrbuf[4096];
if (!lif_address_unparse(addr, addrbuf, sizeof addrbuf, true))
continue;
lif_environment_push(envp, "IF_ADDRESS", addrbuf);
did_address = true;
continue;
}
else if (!strcmp(entry->key, "gateway"))
{
if (did_gateway)
continue;
did_gateway = true;
}
else if (!strcmp(entry->key, "requires"))
{
if (iface->is_bridge)
lif_environment_push(envp, "IF_BRIDGE_PORTS", (const char *) entry->data);
if (iface->is_bond)
lif_environment_push(envp, "IF_BOND_SLAVES", (const char *) entry->data);
}
char envkey[4096] = "IF_";
strlcat(envkey, entry->key, sizeof envkey);
char *ep = envkey + 2;
while (*ep++)
{
*ep = toupper(*ep);
if (*ep == '-')
*ep = '_';
}
lif_environment_push(envp, envkey, (const char *) entry->data);
}
}
bool
lif_lifecycle_query_dependents(const struct lif_execute_opts *opts, struct lif_interface *iface, const char *lifname)
{
@ -106,15 +181,7 @@ lif_lifecycle_query_dependents(const struct lif_execute_opts *opts, struct lif_i
char **envp = NULL;
lif_environment_push(&envp, "IFACE", lifname);
lif_environment_push(&envp, "PHASE", "depend");
lif_environment_push(&envp, "MODE", "depend");
if (opts->verbose)
lif_environment_push(&envp, "VERBOSE", "1");
if (opts->interfaces_file)
lif_environment_push(&envp, "INTERFACES_FILE", opts->interfaces_file);
build_environment(&envp, opts, iface, lifname, "depend", "depend");
struct lif_dict_entry *entry = lif_dict_find(&iface->vars, "requires");
if (entry != NULL)
@ -143,6 +210,8 @@ lif_lifecycle_query_dependents(const struct lif_execute_opts *opts, struct lif_i
else
lif_dict_add(&iface->vars, "requires", strdup(final_deps));
lif_environment_free(&envp);
return true;
}
@ -151,78 +220,7 @@ lif_lifecycle_run_phase(const struct lif_execute_opts *opts, struct lif_interfac
{
char **envp = NULL;
lif_environment_push(&envp, "IFACE", lifname);
lif_environment_push(&envp, "PHASE", phase);
/* try to provide $METHOD for ifupdown1 scripts if we can */
if (iface->is_dhcp)
lif_environment_push(&envp, "METHOD", "dhcp");
/* same for $MODE */
if (up)
lif_environment_push(&envp, "MODE", "start");
else
lif_environment_push(&envp, "MODE", "stop");
if (opts->verbose)
lif_environment_push(&envp, "VERBOSE", "1");
if (opts->interfaces_file)
lif_environment_push(&envp, "INTERFACES_FILE", opts->interfaces_file);
struct lif_node *iter;
bool did_address = false, did_gateway = false;
LIF_DICT_FOREACH(iter, &iface->vars)
{
struct lif_dict_entry *entry = iter->data;
if (!strcmp(entry->key, "address"))
{
if (did_address)
continue;
struct lif_address *addr = entry->data;
char addrbuf[4096];
if (!lif_address_unparse(addr, addrbuf, sizeof addrbuf, true))
continue;
lif_environment_push(&envp, "IF_ADDRESS", addrbuf);
did_address = true;
continue;
}
else if (!strcmp(entry->key, "gateway"))
{
if (did_gateway)
continue;
did_gateway = true;
}
else if (!strcmp(entry->key, "requires"))
{
if (iface->is_bridge)
lif_environment_push(&envp, "IF_BRIDGE_PORTS", (const char *) entry->data);
if (iface->is_bond)
lif_environment_push(&envp, "IF_BOND_SLAVES", (const char *) entry->data);
}
char envkey[4096] = "IF_";
strlcat(envkey, entry->key, sizeof envkey);
char *ep = envkey + 2;
while (*ep++)
{
*ep = toupper(*ep);
if (*ep == '-')
*ep = '_';
}
lif_environment_push(&envp, envkey, (const char *) entry->data);
}
build_environment(&envp, opts, iface, lifname, phase, up ? "start" : "stop");
if (!handle_executors_for_phase(opts, envp, iface))
goto handle_error;