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extend sysctl functions to shadow values

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Pass to all the sysctl_* functions a hashmap which can be used to
optionally save the value written in the sysctl.
This commit is contained in:
Matteo Croce
2024-09-11 23:01:25 +02:00
parent 2b735c7d71
commit 766bcf302a
6 changed files with 78 additions and 40 deletions
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src/basic/sysctl-util.h
+14 -11
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@@ -10,27 +10,30 @@
char* sysctl_normalize(char *s);
int sysctl_read(const char *property, char **value);
int sysctl_write(const char *property, const char *value);
int sysctl_write_full(const char *property, const char *value, Hashmap **shadow);
int sysctl_writef(const char *property, const char *format, ...) _printf_(2, 3);
int sysctl_read_ip_property(int af, const char *ifname, const char *property, char **ret);
int sysctl_write_ip_property(int af, const char *ifname, const char *property, const char *value);
static inline int sysctl_write_ip_property_boolean(int af, const char *ifname, const char *property, bool value) {
return sysctl_write_ip_property(af, ifname, property, one_zero(value));
static inline int sysctl_write(const char *property, const char *value) {
return sysctl_write_full(property, value, NULL);
}
int sysctl_write_ip_neighbor_property(int af, const char *ifname, const char *property, const char *value);
static inline int sysctl_write_ip_neighbor_property_uint32(int af, const char *ifname, const char *property, uint32_t value) {
int sysctl_read_ip_property(int af, const char *ifname, const char *property, char **ret);
int sysctl_write_ip_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
static inline int sysctl_write_ip_property_boolean(int af, const char *ifname, const char *property, bool value, Hashmap **shadow) {
return sysctl_write_ip_property(af, ifname, property, one_zero(value), shadow);
}
int sysctl_write_ip_neighbor_property(int af, const char *ifname, const char *property, const char *value, Hashmap **shadow);
static inline int sysctl_write_ip_neighbor_property_uint32(int af, const char *ifname, const char *property, uint32_t value, Hashmap **shadow) {
char buf[DECIMAL_STR_MAX(uint32_t)];
xsprintf(buf, "%u", value);
return sysctl_write_ip_neighbor_property(af, ifname, property, buf);
return sysctl_write_ip_neighbor_property(af, ifname, property, buf, shadow);
}
#define DEFINE_SYSCTL_WRITE_IP_PROPERTY(name, type, format) \
static inline int sysctl_write_ip_property_##name(int af, const char *ifname, const char *property, type value) { \
static inline int sysctl_write_ip_property_##name(int af, const char *ifname, const char *property, type value, Hashmap **shadow) { \
char buf[DECIMAL_STR_MAX(type)]; \
xsprintf(buf, format, value); \
return sysctl_write_ip_property(af, ifname, property, buf); \
return sysctl_write_ip_property(af, ifname, property, buf, shadow); \
}
DEFINE_SYSCTL_WRITE_IP_PROPERTY(int, int, "%i");