Greenbone Vulnerability Management Libraries
21.4.2
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Implementation of GVM Networking related API. More...
#include "networking.h"
#include <arpa/inet.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <glib/gstdio.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
Data Structures | |
struct | route_entry |
Macros | |
#define | G_LOG_DOMAIN "libgvm base" |
GLib log domain. More... | |
Typedefs | |
typedef struct route_entry | route_entry_t |
Functions | |
int | gvm_source_iface_init (const char *iface) |
Initializes the source network interface name and related information. More... | |
int | gvm_source_iface_is_set (void) |
Check if global_source global_source_iface is set. More... | |
int | gvm_source_set_socket (int socket, int port, int family) |
Binds a socket to use the global source address. More... | |
void | gvm_source_addr (void *addr) |
Gives the source IPv4 address. More... | |
void | gvm_source_addr6 (void *addr6) |
Gives the source IPv6 address. More... | |
void | gvm_source_addr_as_addr6 (struct in6_addr *addr6) |
Gives the source IPv4 mapped as an IPv6 address. eg. 192.168.20.10 would map to ::ffff:192.168.20.10. More... | |
char * | gvm_source_addr_str (void) |
Gives the source IPv4 address in string format. More... | |
char * | gvm_source_addr6_str (void) |
Gives the source IPv6 address in string format. More... | |
void | ipv4_as_ipv6 (const struct in_addr *ip4, struct in6_addr *ip6) |
Maps an IPv4 address as an IPv6 address. eg. 192.168.10.20 would map to ::ffff:192.168.10.20. More... | |
void | addr6_to_str (const struct in6_addr *addr6, char *str) |
Stringifies an IP address. More... | |
char * | addr6_as_str (const struct in6_addr *addr6) |
Stringifies an IP address. More... | |
void | sockaddr_as_str (const struct sockaddr_storage *addr, char *str) |
Convert an IP address to string format. More... | |
GSList * | gvm_resolve_list (const char *name) |
Returns a list of addresses that a hostname resolves to. More... | |
int | gvm_resolve (const char *name, void *dst, int family) |
Resolves a hostname to an IPv4 or IPv6 address. More... | |
int | gvm_resolve_as_addr6 (const char *name, struct in6_addr *ip6) |
Resolves a hostname to an IPv4-mapped IPv6 or IPv6 address. More... | |
int | validate_port_range (const char *port_range) |
Validate a port range string. More... | |
array_t * | port_range_ranges (const char *port_range) |
Create a range array from a port_range string. More... | |
int | port_in_port_ranges (int pnum, port_protocol_t ptype, array_t *pranges) |
Checks if a port num is in port ranges array. More... | |
int | ipv6_is_enabled () |
Checks if IPv6 support is enabled. More... | |
gboolean | ip_islocalhost (struct sockaddr_storage *storage) |
Determine if IP is localhost. More... | |
static GSList * | get_routes (void) |
Get the entries of /proc/net/route as list of route_entry structs. More... | |
gchar * | gvm_routethrough (struct sockaddr_storage *storage_dest, struct sockaddr_storage *storage_source) |
Get Interface which should be used for routing to destination addr. More... | |
Variables | |
char | global_source_iface [IFNAMSIZ] = {'\0'} |
struct in_addr | global_source_addr = {.s_addr = 0} |
struct in6_addr | global_source_addr6 = {.s6_addr32 = {0, 0, 0, 0}} |
Implementation of GVM Networking related API.
#define G_LOG_DOMAIN "libgvm base" |
GLib log domain.
typedef struct route_entry route_entry_t |
char* addr6_as_str | ( | const struct in6_addr * | addr6 | ) |
Stringifies an IP address.
[in] | addr6 | IP address. |
void addr6_to_str | ( | const struct in6_addr * | addr6, |
char * | str | ||
) |
Stringifies an IP address.
[in] | addr6 | IP address. |
[out] | str | Buffer to output IP. |
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static |
Get the entries of /proc/net/route as list of route_entry structs.
int gvm_resolve | ( | const char * | name, |
void * | dst, | ||
int | family | ||
) |
Resolves a hostname to an IPv4 or IPv6 address.
[in] | name | Hostname to resolve. |
[out] | dst | Buffer to store resolved address. Size must be at least 4 bytes for AF_INET and 16 bytes for AF_INET6. |
[in] | family | Either AF_INET or AF_INET6. |
int gvm_resolve_as_addr6 | ( | const char * | name, |
struct in6_addr * | ip6 | ||
) |
Resolves a hostname to an IPv4-mapped IPv6 or IPv6 address.
[in] | name | Hostname to resolve. |
[out] | ip6 | Buffer to store resolved address. |
GSList* gvm_resolve_list | ( | const char * | name | ) |
Returns a list of addresses that a hostname resolves to.
[in] | name | Hostname to resolve. |
gchar* gvm_routethrough | ( | struct sockaddr_storage * | storage_dest, |
struct sockaddr_storage * | storage_source | ||
) |
Get Interface which should be used for routing to destination addr.
This function should be used sparingly as it parses /proc/net/route for every call.
[in] | storage_dest | Destination address. |
[out] | storage_source | Source address. Is set to either address of the interface we use or global source address if set. Only gets filled if storage_source != NULL. |
void gvm_source_addr | ( | void * | addr | ) |
Gives the source IPv4 address.
[out] | addr | Buffer of at least 4 bytes. |
void gvm_source_addr6 | ( | void * | addr6 | ) |
Gives the source IPv6 address.
[out] | addr6 | Buffer of at least 16 bytes. |
char* gvm_source_addr6_str | ( | void | ) |
Gives the source IPv6 address in string format.
void gvm_source_addr_as_addr6 | ( | struct in6_addr * | addr6 | ) |
Gives the source IPv4 mapped as an IPv6 address. eg. 192.168.20.10 would map to ::ffff:192.168.20.10.
[out] | addr6 | Buffer of at least 16 bytes. |
char* gvm_source_addr_str | ( | void | ) |
Gives the source IPv4 address in string format.
int gvm_source_iface_init | ( | const char * | iface | ) |
Initializes the source network interface name and related information.
[in] | iface | Name of network interface to use as source interface. |
int gvm_source_iface_is_set | ( | void | ) |
Check if global_source global_source_iface is set.
int gvm_source_set_socket | ( | int | socket, |
int | port, | ||
int | family | ||
) |
Binds a socket to use the global source address.
[in] | socket | Socket to set source address for. |
[in] | port | Network port for socket. |
[in] | family | Family of socket. AF_INET or AF_INET6. |
gboolean ip_islocalhost | ( | struct sockaddr_storage * | storage | ) |
Determine if IP is localhost.
void ipv4_as_ipv6 | ( | const struct in_addr * | ip4, |
struct in6_addr * | ip6 | ||
) |
Maps an IPv4 address as an IPv6 address. eg. 192.168.10.20 would map to ::ffff:192.168.10.20.
[in] | ip4 | IPv4 address to map. |
[out] | ip6 | Buffer to store the IPv6 address. |
int ipv6_is_enabled | ( | ) |
Checks if IPv6 support is enabled.
int port_in_port_ranges | ( | int | pnum, |
port_protocol_t | ptype, | ||
array_t * | pranges | ||
) |
Checks if a port num is in port ranges array.
[in] | pnum | Port number. |
[in] | ptype | Port type. |
[in] | pranges | Array of port ranges. |
array_t* port_range_ranges | ( | const char * | port_range | ) |
Create a range array from a port_range string.
[in] | port_range | Valid port_range string. |
void sockaddr_as_str | ( | const struct sockaddr_storage * | addr, |
char * | str | ||
) |
Convert an IP address to string format.
[in] | addr | Address to convert. |
[out] | str | Buffer of INET6_ADDRSTRLEN size. |
int validate_port_range | ( | const char * | port_range | ) |
Validate a port range string.
Accepts ranges in form of "103,U:200-1024,3000-4000,T:3-4,U:7".
[in] | port_range | A port range. |
struct in_addr global_source_addr = {.s_addr = 0} |
struct in6_addr global_source_addr6 = {.s6_addr32 = {0, 0, 0, 0}} |
char global_source_iface[IFNAMSIZ] = {'\0'} |