#include <config.h>#include <sys/types.h>#include <sys/uio.h>#include <errno.h>#include <unistd.h>#include <fcntl.h>#include <isc/log.h>#include <isc/msgs.h>#include <isc/net.h>#include <isc/netdb.h>#include <isc/once.h>#include <isc/strerror.h>#include <isc/string.h>#include <isc/util.h>Go to the source code of this file.
Defines | |
| #define | ISC_SOCKADDR_LEN_T unsigned int |
| #define | ISC_NET_PORTRANGELOW 1024 |
| Definitions about UDP port range specification. This is a total mess of portability variants: some use sysctl (but the sysctl names vary), some use system-specific interfaces, some have the same interface for IPv4 and IPv6, some separate them, etc... | |
| #define | ISC_NET_PORTRANGEHIGH 65535 |
Functions | |
| static isc_result_t | try_proto (int domain) |
| static void | initialize_action (void) |
| static void | initialize (void) |
| isc_result_t | isc_net_probeipv4 (void) |
| Check if the system's kernel supports IPv4. | |
| isc_result_t | isc_net_probeipv6 (void) |
| Check if the system's kernel supports IPv6. | |
| isc_result_t | isc_net_probeunix (void) |
| isc_result_t | isc_net_probe_ipv6only (void) |
| Check if the system's kernel supports the IPV6_V6ONLY socket option. | |
| isc_result_t | isc_net_probe_ipv6pktinfo (void) |
| static ISC_SOCKADDR_LEN_T | cmsg_len (ISC_SOCKADDR_LEN_T len) |
| static ISC_SOCKADDR_LEN_T | cmsg_space (ISC_SOCKADDR_LEN_T len) |
| static void | try_dscp_v4 (void) |
| static void | try_dscp_v6 (void) |
| static void | try_dscp (void) |
| static void | initialize_dscp (void) |
| unsigned int | isc_net_probedscp (void) |
| Probe the level of DSCP support. | |
| isc_result_t | isc_net_getudpportrange (int af, in_port_t *low, in_port_t *high) |
| Returns system's default range of ephemeral UDP ports, if defined. If the range is not available or unknown, ISC_NET_PORTRANGELOW and ISC_NET_PORTRANGEHIGH will be returned. | |
| void | isc_net_disableipv4 (void) |
| void | isc_net_disableipv6 (void) |
| void | isc_net_enableipv4 (void) |
| void | isc_net_enableipv6 (void) |
Variables | |
| static isc_once_t | once = ISC_ONCE_INIT |
| static isc_once_t | once_dscp = ISC_ONCE_INIT |
| static isc_result_t | ipv4_result = ISC_R_NOTFOUND |
| static isc_result_t | ipv6_result = ISC_R_NOTFOUND |
| static isc_result_t | unix_result = ISC_R_NOTFOUND |
| static isc_result_t | ipv6only_result = ISC_R_NOTFOUND |
| static isc_result_t | ipv6pktinfo_result = ISC_R_NOTFOUND |
| static unsigned int | dscp_result = 0 |
| #define ISC_SOCKADDR_LEN_T unsigned int |
Definition at line 46 of file net.c.
Referenced by cmsg_len(), internal_accept(), and internal_connect().
| #define ISC_NET_PORTRANGELOW 1024 |
Definitions about UDP port range specification. This is a total mess of portability variants: some use sysctl (but the sysctl names vary), some use system-specific interfaces, some have the same interface for IPv4 and IPv6, some separate them, etc...
The last resort defaults: use all non well known port space
Definition at line 60 of file net.c.
Referenced by isc_net_getudpportrange().
| #define ISC_NET_PORTRANGEHIGH 65535 |
| static isc_result_t try_proto | ( | int | domain | ) | [static] |
Definition at line 129 of file net.c.
References isc__strerror(), isc_lctx, ISC_LOG_ERROR, isc_log_write(), ISC_LOGCATEGORY_GENERAL, ISC_LOGMODULE_SOCKET, ISC_MSG_FAILED, isc_msgcat_get(), ISC_MSGSET_GENERAL, ISC_R_NOTFOUND, ISC_R_SUCCESS, ISC_R_UNEXPECTED, ISC_STRERRORSIZE, PF_INET6, s, and UNEXPECTED_ERROR.
Referenced by initialize_action().
| static void initialize_action | ( | void | ) | [static] |
Definition at line 210 of file net.c.
References ipv4_result, ipv6_result, PF_INET6, try_proto(), and unix_result.
| static void initialize | ( | void | ) | [static] |
Definition at line 225 of file net.c.
References initialize_action(), isc_once_do, ISC_R_SUCCESS, once, and RUNTIME_CHECK.
| isc_result_t isc_net_probeipv4 | ( | void | ) |
Check if the system's kernel supports IPv4.
Returns:
Definition at line 230 of file net.c.
References initialize(), and ipv4_result.
Referenced by add_listener(), bind9_getaddresses(), do_scan(), get_view_querysource_dispatch(), listener_bind(), ns_controls_configure(), parse_command_line(), setup_libs(), and setup_system().
| isc_result_t isc_net_probeipv6 | ( | void | ) |
Check if the system's kernel supports IPv6.
Returns:
Definition at line 236 of file net.c.
References initialize(), and ipv6_result.
Referenced by add_listener(), bind9_getaddresses(), do_scan(), get_view_querysource_dispatch(), isc_interfaceiter_create(), listener_bind(), load_configuration(), ns_controls_configure(), parse_command_line(), setup_libs(), and setup_system().
| isc_result_t isc_net_probeunix | ( | void | ) |
Definition at line 242 of file net.c.
References initialize(), and unix_result.
Referenced by add_listener().
| isc_result_t isc_net_probe_ipv6only | ( | void | ) |
Check if the system's kernel supports the IPV6_V6ONLY socket option.
Returns:
Definition at line 384 of file net.c.
References ipv6only_result, and ISC_R_NOTFOUND.
Referenced by do_scan().
| isc_result_t isc_net_probe_ipv6pktinfo | ( | void | ) |
Definition at line 396 of file net.c.
References ipv6pktinfo_result, and ISC_R_NOTFOUND.
Referenced by do_scan().
| static ISC_SOCKADDR_LEN_T cmsg_len | ( | ISC_SOCKADDR_LEN_T | len | ) | [inline, static] |
Definition at line 410 of file net.c.
References ISC_SOCKADDR_LEN_T.
Referenced by build_msghdr_send(), and cmsg_space().
| static ISC_SOCKADDR_LEN_T cmsg_space | ( | ISC_SOCKADDR_LEN_T | len | ) | [inline, static] |
| static void try_dscp_v4 | ( | void | ) | [static] |
Definition at line 615 of file net.c.
References dscp_result, isc__strerror(), isc_lctx, ISC_LOG_DEBUG, isc_log_write(), ISC_LOGCATEGORY_GENERAL, ISC_LOGMODULE_SOCKET, ISC_NET_DSCPPKTV4, ISC_NET_DSCPRECVV4, ISC_NET_DSCPSETV4, and ISC_STRERRORSIZE.
| unsigned int isc_net_probedscp | ( | void | ) |
Probe the level of DSCP support.
Definition at line 758 of file net.c.
Referenced by ATF_TC_BODY(), and socket_create().
| isc_result_t isc_net_getudpportrange | ( | int | af, | |
| in_port_t * | low, | |||
| in_port_t * | high | |||
| ) |
Returns system's default range of ephemeral UDP ports, if defined. If the range is not available or unknown, ISC_NET_PORTRANGELOW and ISC_NET_PORTRANGEHIGH will be returned.
Requires:
Definition at line 839 of file net.c.
References ISC_NET_PORTRANGEHIGH, ISC_NET_PORTRANGELOW, ISC_R_FAILURE, ISC_R_SUCCESS, REQUIRE, and UNUSED.
Referenced by load_configuration().
| void isc_net_disableipv4 | ( | void | ) |
Definition at line 882 of file net.c.
Referenced by dash_option(), parse_args(), and parse_command_line().
| void isc_net_disableipv6 | ( | void | ) |
Definition at line 889 of file net.c.
Referenced by dash_option(), parse_args(), and parse_command_line().
isc_once_t once = ISC_ONCE_INIT [static] |
isc_once_t once_dscp = ISC_ONCE_INIT [static] |
isc_result_t ipv4_result = ISC_R_NOTFOUND [static] |
isc_result_t ipv6_result = ISC_R_NOTFOUND [static] |
isc_result_t unix_result = ISC_R_NOTFOUND [static] |
isc_result_t ipv6only_result = ISC_R_NOTFOUND [static] |
isc_result_t ipv6pktinfo_result = ISC_R_NOTFOUND [static] |
unsigned int dscp_result = 0 [static] |