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module/removables: add 'ignore' configuration option

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This is a list of devnames (e.g. /dev/sr0). Devices listed here will
be ignored.
This commit is contained in:
Daniel Eklöf 2020-06-20 21:46:03 +02:00
parent b0e9c02876
commit 5d17f1eb57
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
1 changed files with 40 additions and 2 deletions
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42
modules/removables.c
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@ -56,6 +56,7 @@ struct private {
int left_spacing;
int right_spacing;
tll(char *) ignore;
tll(struct block_device) devices;
};
@ -90,6 +91,7 @@ destroy(struct module *mod)
tll_foreach(m->devices, it)
free_device(&it->item);
tll_free(m->devices);
tll_free_and_free(m->ignore, free);
free(m);
module_default_destroy(mod);
@ -301,6 +303,16 @@ add_device(struct module *mod, struct udev_device *dev)
if (!removable && !sd)
return NULL;
const char *devname = udev_device_get_property_value(dev, "DEVNAME");
if (devname != NULL) {
tll_foreach(m->ignore, it) {
if (strcmp(it->item, devname) == 0) {
LOG_DBG("ignoring %s because it is on the ignore list", devname);
return NULL;
}
}
}
const char *_size = udev_device_get_sysattr_value(dev, "size");
uint64_t size = 0;
if (_size != NULL)
@ -557,13 +569,17 @@ run(struct module *mod)
}
static struct module *
removables_new(struct particle *label, int left_spacing, int right_spacing)
removables_new(struct particle *label, int left_spacing, int right_spacing,
size_t ignore_count, const char *ignore[static ignore_count])
{
struct private *priv = calloc(1, sizeof(*priv));
priv->label = label;
priv->left_spacing = left_spacing;
priv->right_spacing = right_spacing;
for (size_t i = 0; i < ignore_count; i++)
tll_push_back(priv->ignore, strdup(ignore[i]));
struct module *mod = module_common_new();
mod->private = priv;
mod->run = &run;
@ -579,13 +595,34 @@ from_conf(const struct yml_node *node, struct conf_inherit inherited)
const struct yml_node *spacing = yml_get_value(node, "spacing");
const struct yml_node *left_spacing = yml_get_value(node, "left-spacing");
const struct yml_node *right_spacing = yml_get_value(node, "right-spacing");
const struct yml_node *ignore_list = yml_get_value(node, "ignore");
int left = spacing != NULL ? yml_value_as_int(spacing) :
left_spacing != NULL ? yml_value_as_int(left_spacing) : 0;
int right = spacing != NULL ? yml_value_as_int(spacing) :
right_spacing != NULL ? yml_value_as_int(right_spacing) : 0;
return removables_new(conf_to_particle(content, inherited), left, right);
size_t ignore_count = ignore_list != NULL ? yml_list_length(ignore_list) : 0;
const char *ignore[ignore_count];
if (ignore_list != NULL) {
size_t i = 0;
for (struct yml_list_iter iter = yml_list_iter(ignore_list);
iter.node != NULL;
yml_list_next(&iter), i++)
{
ignore[i] = yml_value_as_string(iter.node);
}
}
return removables_new(
conf_to_particle(content, inherited), left, right, ignore_count, ignore);
}
static bool
verify_ignore(keychain_t *chain, const struct yml_node *node)
{
return conf_verify_list(chain, node, &conf_verify_string);
}
static bool
@ -595,6 +632,7 @@ verify_conf(keychain_t *chain, const struct yml_node *node)
{"spacing", false, &conf_verify_int},
{"left-spacing", false, &conf_verify_int},
{"right-spacing", false, &conf_verify_int},
{"ignore", false, &verify_ignore},
MODULE_COMMON_ATTRS,
};