OpenVPN
Data Structures | Macros | Functions | Variables
options.c File Reference
#include "syshead.h"
#include "buffer.h"
#include "error.h"
#include "common.h"
#include "run_command.h"
#include "shaper.h"
#include "crypto.h"
#include "ssl.h"
#include "ssl_ncp.h"
#include "options.h"
#include "misc.h"
#include "socket.h"
#include "packet_id.h"
#include "pkcs11.h"
#include "win32.h"
#include "push.h"
#include "pool.h"
#include "proto.h"
#include "helper.h"
#include "manage.h"
#include "forward.h"
#include "ssl_verify.h"
#include "platform.h"
#include "xkey_common.h"
#include "dco.h"
#include <ctype.h>
#include "memdbg.h"
Include dependency graph for options.c:

Go to the source code of this file.

Data Structures

struct  pull_filter
 
struct  pull_filter_list
 
struct  in_src
 

Macros

#define PUF_TYPE_UNDEF   0 /** undefined filter type */
 
#define PUF_TYPE_ACCEPT   1 /** filter type to accept a matching option */
 
#define PUF_TYPE_IGNORE   2 /** filter type to ignore a matching option */
 
#define PUF_TYPE_REJECT   3 /** filter type to reject and trigger SIGUSR1 */
 
#define SHOW_PARM(name, value, format)   msg(D_SHOW_PARMS, " " #name " = " format, (value))
 
#define SHOW_STR(var)   SHOW_PARM(var, (o->var ? o->var : "[UNDEF]"), "'%s'")
 
#define SHOW_STR_INLINE(var)
 
#define SHOW_INT(var)   SHOW_PARM(var, o->var, "%d")
 
#define SHOW_UINT(var)   SHOW_PARM(var, o->var, "%u")
 
#define SHOW_INT64(var)   SHOW_PARM(var, o->var, "%" PRIi64)
 
#define SHOW_UNSIGNED(var)   SHOW_PARM(var, o->var, "0x%08x")
 
#define SHOW_BOOL(var)   SHOW_PARM(var, (o->var ? "ENABLED" : "DISABLED"), "%s");
 
#define USAGE_VALID_SERVER_PROTOS
 
#define MUST_BE_UNDEF(parm)
 
#define CHKACC_FILE   (1<<0) /** Check for a file/directory presence */
 Expect people using the stripped down version to know what they do. More...
 
#define CHKACC_DIRPATH   (1<<1) /** Check for directory presence where a file should reside */
 
#define CHKACC_FILEXSTWR   (1<<2) /** If file exists, is it writable? */
 
#define CHKACC_ACPTSTDIN   (1<<3) /** If filename is stdin, it's allowed and "exists" */
 
#define CHKACC_PRIVATE   (1<<4) /** Warn if this (private) file is group/others accessible */
 
#define TLS_CLIENT   (o->tls_client)
 
#define TLS_SERVER   (o->tls_server)
 
#define LZO_LIB_VER_STR   "", ""
 
#define IS_TYPE_FP   1
 
#define IS_TYPE_BUF   2
 
#define VERIFY_PERMISSION(mask)
 
#define NM_QUOTE_HINT   (1<<0)
 

Functions

void init_options (struct options *o, const bool init_gc)
 
void uninit_options (struct options *o)
 
static const char * pull_filter_type_name (int type)
 
static void setenv_connection_entry (struct env_set *es, const struct connection_entry *e, const int i)
 
void setenv_settings (struct env_set *es, const struct options *o)
 
static in_addr_t get_ip_addr (const char *ip_string, int msglevel, bool *error)
 
static char * get_ipv6_addr_no_netbits (const char *addr, struct gc_arena *gc)
 Returns newly allocated string containing address part without "/nn". More...
 
static bool ipv6_addr_safe_hexplusbits (const char *ipv6_prefix_spec)
 
static char * string_substitute (const char *src, int from, int to, struct gc_arena *gc)
 
static struct verify_hash_listparse_hash_fingerprint (const char *str, int nbytes, int msglevel, struct gc_arena *gc)
 Parses a hexstring and checks if the string has the correct length. More...
 
static struct verify_hash_listparse_hash_fingerprint_multiline (const char *str, int nbytes, int msglevel, struct gc_arena *gc)
 Parses a string consisting of multiple lines of hexstrings and checks if each string has the correct length. More...
 
static void show_dhcp_option_list (const char *name, const char *const *array, int len)
 
static void show_dhcp_option_addrs (const char *name, const in_addr_t *array, int len)
 
static void show_tuntap_options (const struct tuntap_options *o)
 
static void dhcp_option_dns6_parse (const char *parm, struct in6_addr *dns6_list, int *len, int msglevel)
 
static void dhcp_option_address_parse (const char *name, const char *parm, in_addr_t *array, int *len, int msglevel)
 
static void tuntap_options_copy_dns (struct options *o)
 
static const char * print_vlan_accept (enum vlan_acceptable_frames mode)
 
static void show_p2mp_parms (const struct options *o)
 
static void option_iroute (struct options *o, const char *network_str, const char *netmask_str, int msglevel)
 
static void option_iroute_ipv6 (struct options *o, const char *prefix_str, int msglevel)
 
static void show_http_proxy_options (const struct http_proxy_options *o)
 
void options_detach (struct options *o)
 
void rol_check_alloc (struct options *options)
 
static void rol6_check_alloc (struct options *options)
 
static void cnol_check_alloc (struct options *options)
 
static void show_connection_entry (const struct connection_entry *o)
 
static void show_connection_entries (const struct options *o)
 
static void show_pull_filter_list (const struct pull_filter_list *l)
 
void show_settings (const struct options *o)
 
static struct http_proxy_optionsparse_http_proxy_override (const char *server, const char *port, const char *flags, const int msglevel, struct gc_arena *gc)
 
static void options_postprocess_http_proxy_override (struct options *o)
 
static struct connection_listalloc_connection_list_if_undef (struct options *options)
 
static struct connection_entryalloc_connection_entry (struct options *options, const int msglevel)
 
static struct remote_listalloc_remote_list_if_undef (struct options *options)
 
static struct remote_entryalloc_remote_entry (struct options *options, const int msglevel)
 
static struct pull_filter_listalloc_pull_filter_list (struct options *o)
 
static struct pull_filteralloc_pull_filter (struct options *o, const int msglevel)
 
static void connection_entry_load_re (struct connection_entry *ce, const struct remote_entry *re)
 
static void connection_entry_preload_key (const char **key_file, bool *key_inline, struct gc_arena *gc)
 
static void check_ca_required (const struct options *options)
 
static void options_postprocess_verify_ce (const struct options *options, const struct connection_entry *ce)
 
static void options_postprocess_mutate_ce (struct options *o, struct connection_entry *ce)
 
static void remap_redirect_gateway_flags (struct options *opt)
 
static void pre_connect_save (struct options *o)
 
void pre_connect_restore (struct options *o, struct gc_arena *gc)
 
static void options_postprocess_mutate_invariant (struct options *options)
 
static void options_postprocess_verify (const struct options *o)
 
static void options_postprocess_setdefault_ncpciphers (struct options *o)
 Checks for availibility of Chacha20-Poly1305 and sets the ncp_cipher to either AES-256-GCM:AES-128-GCM or AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305. More...
 
static void options_postprocess_cipher (struct options *o)
 
static bool need_compatibility_before (const struct options *o, unsigned int version)
 The option –compat-mode is used to set up default settings to values used on the specified openvpn version and earlier. More...
 
static void options_set_backwards_compatible_options (struct options *o)
 Changes default values so that OpenVPN can be compatible with the user specified version. More...
 
static void options_process_mutate_prf (struct options *o)
 
static void options_postprocess_mutate (struct options *o, struct env_set *es)
 
static bool check_file_access (const int type, const char *file, const int mode, const char *opt)
 
static bool check_file_access_chroot (const char *chroot, const int type, const char *file, const int mode, const char *opt)
 
static bool check_file_access_chroot_inline (bool is_inline, const char *chroot, const int type, const char *file, const int mode, const char *opt)
 A wrapper for check_file_access_chroot() that returns false immediately if the file is inline (and therefore there is no access to check) More...
 
static bool check_file_access_inline (bool is_inline, const int type, const char *file, const int mode, const char *opt)
 A wrapper for check_file_access() that returns false immediately if the file is inline (and therefore there is no access to check) More...
 
static bool check_cmd_access (const char *command, const char *opt, const char *chroot)
 
static void options_postprocess_filechecks (struct options *options)
 
void options_postprocess (struct options *options, struct env_set *es)
 
bool options_postprocess_pull (struct options *o, struct env_set *es)
 
char * options_string (const struct options *o, const struct frame *frame, struct tuntap *tt, openvpn_net_ctx_t *ctx, bool remote, struct gc_arena *gc)
 
bool options_cmp_equal (char *actual, const char *expected)
 
void options_warning (char *actual, const char *expected)
 
static const char * options_warning_extract_parm1 (const char *option_string, struct gc_arena *gc_ret)
 
static void options_warning_safe_scan2 (const int msglevel, const int delim, const bool report_inconsistent, const char *p1, const struct buffer *b2_src, const char *b1_name, const char *b2_name)
 
static void options_warning_safe_scan1 (const int msglevel, const int delim, const bool report_inconsistent, const struct buffer *b1_src, const struct buffer *b2_src, const char *b1_name, const char *b2_name)
 
static void options_warning_safe_ml (const int msglevel, char *actual, const char *expected, size_t actual_n)
 
bool options_cmp_equal_safe (char *actual, const char *expected, size_t actual_n)
 
void options_warning_safe (char *actual, const char *expected, size_t actual_n)
 
const char * options_string_version (const char *s, struct gc_arena *gc)
 
char * options_string_extract_option (const char *options_string, const char *opt_name, struct gc_arena *gc)
 Given an OpenVPN options string, extract the value of an option. More...
 
static enum windows_driver_type parse_windows_driver (const char *str, const int msglevel)
 Parses –windows-driver config option. More...
 
int parse_topology (const char *str, const int msglevel)
 
const char * print_topology (const int topology)
 
int auth_retry_get (void)
 
bool auth_retry_set (const int msglevel, const char *option)
 
const char * auth_retry_print (void)
 
static void usage (void)
 
void usage_small (void)
 
void show_windows_version (const unsigned int flags)
 
void show_dco_version (const unsigned int flags)
 
void show_library_versions (const unsigned int flags)
 
static void usage_version (void)
 
void notnull (const char *arg, const char *description)
 
bool string_defined_equal (const char *s1, const char *s2)
 
static int positive_atoi (const char *str)
 
static unsigned int atou (const char *str)
 
static bool space (unsigned char c)
 
int parse_line (const char *line, char *p[], const int n, const char *file, const int line_num, int msglevel, struct gc_arena *gc)
 
static void bypass_doubledash (char **p)
 
static bool in_src_get (const struct in_src *is, char *line, const int size)
 
static char * read_inline_file (struct in_src *is, const char *close_tag, int *num_lines, struct gc_arena *gc)
 
static int check_inline_file (struct in_src *is, char *p[], struct gc_arena *gc)
 
static int check_inline_file_via_fp (FILE *fp, char *p[], struct gc_arena *gc)
 
static int check_inline_file_via_buf (struct buffer *multiline, char *p[], struct gc_arena *gc)
 
static void add_option (struct options *options, char *p[], bool is_inline, const char *file, int line, const int level, const int msglevel, const unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
static void read_config_file (struct options *options, const char *file, int level, const char *top_file, const int top_line, const int msglevel, const unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
static void read_config_string (const char *prefix, struct options *options, const char *config, const int msglevel, const unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
void parse_argv (struct options *options, const int argc, char *argv[], const int msglevel, const unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
static bool apply_pull_filter (const struct options *o, char *line)
 Filter an option line by all pull filters. More...
 
bool apply_push_options (struct options *options, struct buffer *buf, unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
void options_server_import (struct options *o, const char *filename, int msglevel, unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
void options_string_import (struct options *options, const char *config, const int msglevel, const unsigned int permission_mask, unsigned int *option_types_found, struct env_set *es)
 
static bool verify_permission (const char *name, const char *file, int line, const unsigned int type, const unsigned int allowed, unsigned int *found, const int msglevel, struct options *options, bool is_inline)
 
static bool no_more_than_n_args (const int msglevel, char *p[], const int max, const unsigned int flags)
 
static int msglevel_forward_compatible (struct options *options, const int msglevel)
 
static void set_user_script (struct options *options, const char **script, const char *new_script, const char *type, bool in_chroot)
 
static void show_compression_warning (struct compress_options *info)
 
bool key_is_external (const struct options *options)
 

Variables

const char title_string []
 
static const char usage_message []
 
static int global_auth_retry
 

Macro Definition Documentation

◆ CHKACC_ACPTSTDIN

#define CHKACC_ACPTSTDIN   (1<<3) /** If filename is stdin, it's allowed and "exists" */

Definition at line 3852 of file options.c.

◆ CHKACC_DIRPATH

#define CHKACC_DIRPATH   (1<<1) /** Check for directory presence where a file should reside */

Definition at line 3850 of file options.c.

◆ CHKACC_FILE

#define CHKACC_FILE   (1<<0) /** Check for a file/directory presence */

Expect people using the stripped down version to know what they do.

Definition at line 3849 of file options.c.

◆ CHKACC_FILEXSTWR

#define CHKACC_FILEXSTWR   (1<<2) /** If file exists, is it writable? */

Definition at line 3851 of file options.c.

◆ CHKACC_PRIVATE

#define CHKACC_PRIVATE   (1<<4) /** Warn if this (private) file is group/others accessible */

Definition at line 3853 of file options.c.

◆ IS_TYPE_BUF

#define IS_TYPE_BUF   2

Definition at line 5150 of file options.c.

◆ IS_TYPE_FP

#define IS_TYPE_FP   1

Definition at line 5149 of file options.c.

◆ LZO_LIB_VER_STR

#define LZO_LIB_VER_STR   "", ""

◆ MUST_BE_UNDEF

#define MUST_BE_UNDEF (   parm)
Value:
if (options->parm != defaults.parm) {msg(M_USAGE, err, #parm); \
}

◆ NM_QUOTE_HINT

#define NM_QUOTE_HINT   (1<<0)

Definition at line 5629 of file options.c.

◆ PUF_TYPE_ACCEPT

#define PUF_TYPE_ACCEPT   1 /** filter type to accept a matching option */

Definition at line 931 of file options.c.

◆ PUF_TYPE_IGNORE

#define PUF_TYPE_IGNORE   2 /** filter type to ignore a matching option */

Definition at line 932 of file options.c.

◆ PUF_TYPE_REJECT

#define PUF_TYPE_REJECT   3 /** filter type to reject and trigger SIGUSR1 */

Definition at line 933 of file options.c.

◆ PUF_TYPE_UNDEF

#define PUF_TYPE_UNDEF   0 /** undefined filter type */

Definition at line 930 of file options.c.

◆ SHOW_BOOL

#define SHOW_BOOL (   var)    SHOW_PARM(var, (o->var ? "ENABLED" : "DISABLED"), "%s");

Definition at line 979 of file options.c.

◆ SHOW_INT

#define SHOW_INT (   var)    SHOW_PARM(var, o->var, "%d")

Definition at line 975 of file options.c.

◆ SHOW_INT64

#define SHOW_INT64 (   var)    SHOW_PARM(var, o->var, "%" PRIi64)

Definition at line 977 of file options.c.

◆ SHOW_PARM

#define SHOW_PARM (   name,
  value,
  format 
)    msg(D_SHOW_PARMS, " " #name " = " format, (value))

Definition at line 969 of file options.c.

◆ SHOW_STR

#define SHOW_STR (   var)    SHOW_PARM(var, (o->var ? o->var : "[UNDEF]"), "'%s'")

Definition at line 970 of file options.c.

◆ SHOW_STR_INLINE

#define SHOW_STR_INLINE (   var)
Value:
SHOW_PARM(var, \
o->var ## _inline ? "[INLINE]" : \
(o->var ? o->var : "[UNDEF]"), \
"'%s'")

Definition at line 971 of file options.c.

◆ SHOW_UINT

#define SHOW_UINT (   var)    SHOW_PARM(var, o->var, "%u")

Definition at line 976 of file options.c.

◆ SHOW_UNSIGNED

#define SHOW_UNSIGNED (   var)    SHOW_PARM(var, o->var, "0x%08x")

Definition at line 978 of file options.c.

◆ TLS_CLIENT

#define TLS_CLIENT   (o->tls_client)

◆ TLS_SERVER

#define TLS_SERVER   (o->tls_server)

◆ USAGE_VALID_SERVER_PROTOS

#define USAGE_VALID_SERVER_PROTOS
Value:
"--mode server currently only supports " \
"--proto values of udp, tcp-server, tcp4-server, or tcp6-server"

◆ VERIFY_PERMISSION

#define VERIFY_PERMISSION (   mask)
Value:
{ \
if (!verify_permission(p[0], file, line, (mask), permission_mask, \
option_types_found, msglevel, options, is_inline)) \
{ \
goto err; \
} \
}

Definition at line 5563 of file options.c.

Function Documentation

◆ add_option()

static void add_option ( struct options options,
char *  p[],
bool  is_inline,
const char *  file,
int  line,
const int  level,
const int  msglevel,
const unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)
static

Definition at line 5730 of file options.c.

References add_client_nat_to_option_list(), add_route_ipv6_to_option_list(), add_route_to_option_list(), connection_entry::af, remote_entry::af, compress_options::alg, ALLOC_ARRAY_GC, alloc_buf_gc(), alloc_connection_entry(), alloc_pull_filter(), alloc_remote_entry(), options::allow_deprecated_insecure_static_crypto, options::allow_pull_fqdn, options::allow_recursive_routing, ascii2af(), ascii2ipset(), ascii2keydirection(), ascii2proto(), ASSERT, atou(), http_proxy_options::auth_file, http_proxy_options::auth_file_up, http_proxy_options::auth_method_string, http_proxy_options::auth_retry, auth_retry_set(), options::auth_token_call_auth, options::auth_token_generate, options::auth_token_lifetime, options::auth_token_renewal, options::auth_token_secret_file, options::auth_token_secret_file_inline, options::auth_user_pass_file, options::auth_user_pass_file_inline, options::auth_user_pass_verify_script, options::auth_user_pass_verify_script_via_file, options::authname, options::backwards_compatible, connection_entry::bind_defined, options::bind_dev, connection_entry::bind_ipv6_only, connection_entry::bind_local, options::block_ipv6, options::block_outside_dns, BOOL_CAST, BSTR, buf_printf(), options::ca_file, options::ca_file_inline, options::ca_path, options::ccd_exclusive, options::cd_dir, options::ce, options::cert_file, options::cert_file_inline, options::cf_initial_max, options::cf_initial_per, options::cf_max, options::cf_per, static_challenge_info::challenge_text, options::chroot_dir, options::cipher_list, options::cipher_list_tls13, options::ciphername, options::client, options::client_config_dir, options::client_connect_script, options::client_crresponse_script, options::client_disconnect_script, options::client_nat, cnol_check_alloc(), CO_USE_CC_EXIT_NOTIFY, CO_USE_DYNAMIC_TLS_CRYPT, CO_USE_TLS_KEY_MATERIAL_EXPORT, options::comp, COMP_ALG_LZ4, COMP_ALG_LZO, COMP_ALG_STUB, COMP_ALG_UNDEF, COMP_ALGV2_LZ4, COMP_ALGV2_UNCOMPRESSED, COMP_F_ADAPTIVE, COMP_F_ADVERTISE_STUBS_ONLY, COMP_F_ALLOW_ASYM, COMP_F_ALLOW_COMPRESS, COMP_F_ALLOW_STUB_ONLY, COMP_F_MIGRATE, COMP_F_SWAP, comp_non_stub_enabled(), options::config, options::connect_retry_max, connection_entry::connect_retry_seconds, connection_entry::connect_retry_seconds_max, connection_entry::connect_timeout, connection_entry_load_re(), constrain_int(), http_custom_header::content, options::crl_file, options::crl_file_inline, options::cryptoapi_cert, http_proxy_options::custom_headers, D_PUSH, D_TLS_DEBUG_MED, options::daemon, options::dev, options::dev_node, options::dev_type, options::dh_file, options::dh_file_inline, tuntap_options::dhcp_lease_time, tuntap_options::dhcp_masq_custom_offset, tuntap_options::dhcp_masq_offset, dhcp_option_address_parse(), dhcp_option_dns6_parse(), tuntap_options::dhcp_options, DHCP_OPTIONS_DHCP_OPTIONAL, DHCP_OPTIONS_DHCP_REQUIRED, tuntap_options::dhcp_pre_release, dhcp_release_by_adapter_index(), tuntap_options::dhcp_renew, dhcp_renew_by_adapter_index(), options::disable, tuntap_options::disable_dco, tuntap_options::disable_nbt, tuntap_options::dns, tuntap_options::dns6, tuntap_options::dns6_len, dns_domain_list_append(), tuntap_options::dns_len, options::dns_options, DNS_SECURITY_NO, DNS_SECURITY_OPTIONAL, DNS_SECURITY_YES, dns_server_addr_parse(), dns_server_get(), dns_server_priority_parse(), DNS_TRANSPORT_HTTPS, DNS_TRANSPORT_PLAIN, DNS_TRANSPORT_TLS, dns_server::dnssec, tuntap_options::domain, tuntap_options::domain_search_list, tuntap_options::domain_search_list_len, dns_server::domains, options::down_pre, options::down_script, options::duplicate_cn, options::ecdh_curve, options::enable_c2c, options::enable_ncp_fallback, options::engine, errors_to_stderr(), es, options::exit_event_initial_state, options::exit_event_name, connection_entry::explicit_exit_notification, EXPORT_KEY_DATA_LABEL, options::extra_certs_file, options::extra_certs_file_inline, http-client::f, options::fast_io, compress_options::flags, route_option_list::flags, static_challenge_info::flags, route_ipv6_option_list::flags, options::force_key_material_export, options::forward_compatible, connection_entry::fragment, connection_entry::fragment_encap, dns_options::gc, options::gc, gc_free(), gc_new(), gc_transfer(), options::genkey, GENKEY_AUTH_TOKEN, options::genkey_extra_data, options::genkey_filename, GENKEY_SECRET, GENKEY_TLS_CRYPTV2_CLIENT, GENKEY_TLS_CRYPTV2_SERVER, options::genkey_type, get_default_gateway(), get_default_gateway_ipv6(), get_ip_addr(), get_ipv6_addr(), get_ipv6_addr_no_netbits(), getaddr(), GETADDR_HOST_ORDER, GETADDR_RESOLVE, options::groupname, options::handshake_window, connection_entry::http_proxy_options, options::http_proxy_override, http_proxy_options::http_version, options::ifconfig_ipv6_local, options::ifconfig_ipv6_netbits, options::ifconfig_ipv6_pool_base, options::ifconfig_ipv6_pool_defined, options::ifconfig_ipv6_pool_netbits, options::ifconfig_ipv6_remote, options::ifconfig_local, options::ifconfig_noexec, options::ifconfig_nowarn, options::ifconfig_pool_defined, options::ifconfig_pool_end, options::ifconfig_pool_netmask, options::ifconfig_pool_persist_filename, options::ifconfig_pool_persist_refresh_freq, options::ifconfig_pool_start, ifconfig_pool_verify_range(), options::ifconfig_remote_netmask, options::ignore_unknown_option, options::imported_protocol_flags, options::inactivity_minimum_bytes, options::inactivity_timeout, init_http_proxy_options_once(), init_options(), http_proxy_options::inline_creds, ip_addr_dotted_quad_safe(), ip_or_dns_addr_safe(), options::ip_remote_hint, tuntap_options::ip_win32_defined, tuntap_options::ip_win32_type, options::ipchange, ipconfig_register_dns(), ipset2ascii_all(), ipv6_addr_safe(), ipv6_addr_safe_hexplusbits(), IPW32_SET_ADAPTIVE, IPW32_SET_ADAPTIVE_DELAY_WINDOW, IPW32_SET_DHCP_MASQ, is_special_addr(), options::keepalive_ping, options::keepalive_timeout, connection_entry::key_direction, options::key_direction, KEY_DIRECTION_BIDIRECTIONAL, options::key_pass_file, options::learn_address_script, connection_entry::link_mtu, connection_entry::link_mtu_defined, options::lladdr, connection_entry::local, connection_entry::local_port, connection_entry::local_port_defined, options::log, M_DEBUG_LEVEL, M_ERR, M_FATAL, M_INFO, M_NOPREFIX, M_WARN, mac_addr_safe(), options::machine_readable_output, options::management_addr, management_auth_token(), options::management_certificate, options::management_client_group, options::management_client_user, management_echo(), options::management_flags, options::management_log_history_cache, options::management_port, options::management_user_pass, options::mark, options::max_clients, MAX_CUSTOM_HTTP_HEADER, max_int(), MAX_PARMS, MAX_PEER_ID, options::max_routes_per_client, MAX_SEQ_BACKTRACK, MAX_TIME_BACKTRACK, MD_SHA1, MD_SHA256, MF_CLIENT_AUTH, MF_CONNECT_AS_CLIENT, MF_EXTERNAL_CERT, MF_EXTERNAL_KEY, MF_EXTERNAL_KEY_DIGEST, MF_EXTERNAL_KEY_NOPADDING, MF_EXTERNAL_KEY_PKCS1PAD, MF_EXTERNAL_KEY_PSSPAD, MF_FORGET_DISCONNECT, MF_HOLD, MF_QUERY_PASSWORDS, MF_QUERY_PROXY, MF_QUERY_REMOTE, MF_SIGNAL, MF_UNIX_SOCK, MF_UP_DOWN, MIN_SEQ_BACKTRACK, MIN_TIME_BACKTRACK, options::mlock, options::mode, MODE_POINT_TO_POINT, MODE_SERVER, msg, options::msg_channel, msglevel_forward_compatible(), connection_entry::mssfix, connection_entry::mssfix_default, connection_entry::mssfix_encap, connection_entry::mssfix_fixed, connection_entry::mtu_discover_type, options::mtu_test, options::mute, options::mute_replay_warnings, options::n_bcast_buf, N_SEARCH_LIST_LEN, http_custom_header::name, provider_list::names, tuntap_options::nbdd, tuntap_options::nbdd_len, options::ncp_ciphers, net_ctx_init(), tuntap_options::netbios_node_type, tuntap_options::netbios_scope, verify_hash_list::next, options::nice, NM_QUOTE_HINT, no_more_than_n_args(), NS_CERT_CHECK_CLIENT, NS_CERT_CHECK_SERVER, options::ns_cert_type, tuntap_options::ntp, tuntap_options::ntp_len, options::occ, connection_entry::occ_mtu, open_syslog(), OPENVPN_8021Q_MAX_VID, OPENVPN_8021Q_MIN_VID, openvpn_exit(), OPENVPN_EXIT_STATUS_GOOD, OPENVPN_KU_REQUIRED, OPT_P_COMP, OPT_P_CONFIG, OPT_P_CONNECTION, OPT_P_DHCPDNS, OPT_P_ECHO, OPT_P_EXPLICIT_NOTIFY, OPT_P_GENERAL, OPT_P_INHERIT, OPT_P_INLINE, OPT_P_INSTANCE, OPT_P_MESSAGES, OPT_P_MTU, OPT_P_NCP, OPT_P_NICE, OPT_P_PEER_ID, OPT_P_PERSIST, OPT_P_PERSIST_IP, OPT_P_PLUGIN, OPT_P_PULL_MODE, OPT_P_PUSH, OPT_P_PUSH_MTU, OPT_P_ROUTE, OPT_P_ROUTE_EXTRAS, OPT_P_SCRIPT, OPT_P_SETENV, OPT_P_SHAPER, OPT_P_SOCKBUF, OPT_P_SOCKFLAGS, OPT_P_TIMER, OPT_P_TLS_PARMS, OPT_P_UP, option_iroute(), option_iroute_ipv6(), OPTION_PARM_SIZE, PACKAGE_VERSION, options::packet_id_file, PAR_ALL, PAR_NCT, parse_hash_fingerprint_multiline(), parse_http_proxy_override(), parse_topology(), parse_windows_driver(), options::peer_id, options::persist_config, options::persist_local_ip, options::persist_mode, options::persist_remote_ip, options::persist_tun, PING_EXIT, options::ping_rec_timeout, options::ping_rec_timeout_action, PING_RESTART, options::ping_send_timeout, options::ping_timer_remote, options::pkcs12_file, options::pkcs12_file_inline, platform_chdir(), options::plugin_list, plugin_option_list_add(), plugin_option_list_new(), http_proxy_options::port, positive_atoi(), print_default_gateway(), dns_server::priority, options::priv_key_file, options::priv_key_file_inline, connection_entry::proto, remote_entry::proto, proto2ascii_all(), options::proto_force, options::providers, PUF_TYPE_ACCEPT, PUF_TYPE_IGNORE, PUF_TYPE_REJECT, options::pull, options::push_continuation, options::push_ifconfig_constraint_defined, options::push_ifconfig_constraint_netmask, options::push_ifconfig_constraint_network, options::push_ifconfig_defined, options::push_ifconfig_ipv6_blocked, options::push_ifconfig_ipv6_defined, options::push_ifconfig_ipv6_local, options::push_ifconfig_ipv6_netbits, options::push_ifconfig_ipv6_remote, options::push_ifconfig_local, options::push_ifconfig_local_alias, options::push_ifconfig_remote_netmask, push_options(), options::push_peer_info, push_remove_option(), push_reset(), options::rcvbuf, read_config_file(), read_config_string(), options::real_hash_size, redirect_stdout_stderr(), tuntap_options::register_dns, remap_redirect_gateway_flags(), options::remap_sigusr1, connection_entry::remote, remote_entry::remote, options::remote_cert_eku, options::remote_cert_ku, connection_entry::remote_float, connection_entry::remote_port, remote_entry::remote_port, options::remote_random, options::renegotiate_bytes, options::renegotiate_packets, options::renegotiate_seconds, options::renegotiate_seconds_min, options::replay_time, options::replay_window, RESOLV_RETRY_INFINITE, options::resolve_in_advance, options::resolve_retry_seconds, RG_AUTO_LOCAL, RG_BLOCK_LOCAL, RG_BYPASS_DHCP, RG_BYPASS_DNS, RG_DEF1, RG_ENABLE, RG_LOCAL, RG_REROUTE_GW, rol6_check_alloc(), rol_check_alloc(), options::route_default_gateway, options::route_default_metric, options::route_delay, options::route_delay_defined, options::route_delay_window, options::route_gateway_via_dhcp, options::route_ipv6_default_gateway, options::route_method, ROUTE_METHOD_ADAPTIVE, ROUTE_METHOD_EXE, ROUTE_METHOD_IPAPI, ROUTE_METHOD_SERVICE, options::route_noexec, options::route_nopull, options::route_predown_script, options::route_script, options::routes, options::routes_ipv6, SC_ECHO, options::sc_info, script_security_set(), SDL_CONSTRAIN, dns_options::search_domains, http_proxy_options::server, options::server_bridge_defined, options::server_bridge_ip, options::server_bridge_netmask, options::server_bridge_pool_end, options::server_bridge_pool_start, options::server_bridge_proxy_dhcp, options::server_defined, options::server_flags, options::server_ipv6_defined, options::server_netbits_ipv6, options::server_netmask, options::server_network, options::server_network_ipv6, dns_options::servers, options::session_timeout, set_debug_level(), set_machine_readable_output(), set_pause_exit_win32(), set_suppress_timestamps(), set_user_script(), set_win_sys_path(), setenv_str(), setenv_str_safe(), SF_HOST_RANDOMIZE, SF_NO_PUSH_ROUTE_GATEWAY, SF_NOPOOL, SF_TCP_NODELAY, SF_TCP_NODELAY_HELPER, SF_USE_IP_PKTINFO, SHA256_DIGEST_LENGTH, SHA_DIGEST_LENGTH, options::shaper, SHAPER_MAX, SHAPER_MIN, options::shared_secret_file, options::shared_secret_file_inline, show_adapters(), options::show_ciphers, show_compression_warning(), options::show_curves, options::show_digests, options::show_engines, options::show_net_up, show_routes(), show_tap_win_adapters(), options::show_tls_ciphers, show_valid_win32_tun_subnets(), options::single_session, sleep, options::sndbuf, dns_server::sni, options::sockflags, connection_entry::socks_proxy_authfile, connection_entry::socks_proxy_port, connection_entry::socks_proxy_server, options::ssl_flags, ssl_set_auth_nocache(), ssl_set_auth_token(), ssl_set_auth_token_user(), SSLF_AUTH_USER_PASS_OPTIONAL, SSLF_CLIENT_CERT_NOT_REQUIRED, SSLF_CLIENT_CERT_OPTIONAL, SSLF_CRL_VERIFY_DIR, SSLF_OPT_VERIFY, SSLF_TLS_DEBUG_ENABLED, SSLF_TLS_VERSION_MAX_MASK, SSLF_TLS_VERSION_MAX_SHIFT, SSLF_TLS_VERSION_MIN_MASK, SSLF_TLS_VERSION_MIN_SHIFT, SSLF_USERNAME_AS_COMMON_NAME, options::stale_routes_ageing_time, options::stale_routes_check_interval, options::status_file, options::status_file_update_freq, options::status_file_version, streq, string_substitute(), options::suppress_timestamps, tap_allow_nonadmin_access(), tuntap_options::tap_sleep, options::tcp_queue_limit, options::test_crypto, connection_entry::tls_auth_file, options::tls_auth_file, connection_entry::tls_auth_file_inline, options::tls_auth_file_inline, options::tls_cert_profile, TLS_CHANNEL_BUF_SIZE, TLS_CHANNEL_MTU_MIN, options::tls_client, connection_entry::tls_crypt_file, options::tls_crypt_file, connection_entry::tls_crypt_file_inline, options::tls_crypt_file_inline, connection_entry::tls_crypt_v2_file, options::tls_crypt_v2_file, connection_entry::tls_crypt_v2_file_inline, options::tls_crypt_v2_file_inline, connection_entry::tls_crypt_v2_force_cookie, options::tls_crypt_v2_verify_script, options::tls_exit, options::tls_export_peer_cert_dir, options::tls_groups, connection_entry::tls_mtu, options::tls_server, options::tls_timeout, TLS_VER_BAD, options::tls_verify, tls_version_parse(), options::tmp_dir, options::topology, options::transition_window, translate_mtu_discover_type_name(), dns_server::transport, connection_entry::tun_mtu, connection_entry::tun_mtu_defined, connection_entry::tun_mtu_extra, connection_entry::tun_mtu_extra_defined, connection_entry::tun_mtu_max, options::tuntap_options, uninit_options(), options::up_delay, options::up_restart, options::up_script, usage(), usage_version(), options::use_peer_id, http_proxy_options::user_agent, options::username, options::verbosity, options::verify_hash, options::verify_hash_algo, options::verify_hash_depth, VERIFY_PERMISSION, options::verify_x509_name, VERIFY_X509_SUBJECT_DN, VERIFY_X509_SUBJECT_RDN, VERIFY_X509_SUBJECT_RDN_PREFIX, options::verify_x509_type, options::virtual_hash_size, options::vlan_accept, VLAN_ALL, VLAN_ONLY_TAGGED, VLAN_ONLY_UNTAGGED_OR_PRIORITY, options::vlan_pvid, options::vlan_tagging, options::windows_driver, tuntap_options::wins, tuntap_options::wins_len, options::writepid, options::x509_track, and x509_track_add().

Referenced by apply_push_options(), parse_argv(), read_config_file(), and read_config_string().

◆ alloc_connection_entry()

static struct connection_entry* alloc_connection_entry ( struct options options,
const int  msglevel 
)
static

◆ alloc_connection_list_if_undef()

static struct connection_list* alloc_connection_list_if_undef ( struct options options)
static

Definition at line 2164 of file options.c.

References ALLOC_OBJ_CLEAR_GC, options::connection_list, and options::gc.

Referenced by alloc_connection_entry().

◆ alloc_pull_filter()

static struct pull_filter* alloc_pull_filter ( struct options o,
const int  msglevel 
)
static

◆ alloc_pull_filter_list()

static struct pull_filter_list* alloc_pull_filter_list ( struct options o)
static

Definition at line 2230 of file options.c.

References ALLOC_OBJ_CLEAR_GC, options::gc, and options::pull_filter_list.

Referenced by alloc_pull_filter().

◆ alloc_remote_entry()

static struct remote_entry* alloc_remote_entry ( struct options options,
const int  msglevel 
)
static

◆ alloc_remote_list_if_undef()

static struct remote_list* alloc_remote_list_if_undef ( struct options options)
static

Definition at line 2197 of file options.c.

References ALLOC_OBJ_CLEAR_GC, options::gc, and options::remote_list.

Referenced by alloc_remote_entry().

◆ apply_pull_filter()

static bool apply_pull_filter ( const struct options o,
char *  line 
)
static

Filter an option line by all pull filters.

If a match is found, the line is modified depending on the filter type, and returns true. If the filter type is reject, SIGUSR1 is triggered and the return value is false. In that case the caller must end the push processing.

Definition at line 5463 of file options.c.

References D_LOW, D_PUSH, http-client::f, pull_filter_list::head, M_WARN, msg, PUF_TYPE_ACCEPT, PUF_TYPE_IGNORE, PUF_TYPE_REJECT, options::pull_filter_list, and throw_signal_soft().

Referenced by apply_push_options().

◆ apply_push_options()

bool apply_push_options ( struct options options,
struct buffer buf,
unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)

◆ atou()

static unsigned int atou ( const char *  str)
static

Definition at line 4951 of file options.c.

Referenced by add_option().

◆ auth_retry_get()

int auth_retry_get ( void  )

◆ auth_retry_print()

const char* auth_retry_print ( void  )

Definition at line 4795 of file options.c.

References AR_INTERACT, AR_NOINTERACT, AR_NONE, and global_auth_retry.

Referenced by man_dispatch_command().

◆ auth_retry_set()

bool auth_retry_set ( const int  msglevel,
const char *  option 
)

Definition at line 4772 of file options.c.

References AR_INTERACT, AR_NOINTERACT, AR_NONE, global_auth_retry, msg, and streq.

Referenced by add_option(), and man_dispatch_command().

◆ bypass_doubledash()

static void bypass_doubledash ( char **  p)
static

Definition at line 5140 of file options.c.

Referenced by read_config_file(), and read_config_string().

◆ check_ca_required()

static void check_ca_required ( const struct options options)
static

◆ check_cmd_access()

static bool check_cmd_access ( const char *  command,
const char *  opt,
const char *  chroot 
)
static

◆ check_file_access()

static bool check_file_access ( const int  type,
const char *  file,
const int  mode,
const char *  opt 
)
static

◆ check_file_access_chroot()

static bool check_file_access_chroot ( const char *  chroot,
const int  type,
const char *  file,
const int  mode,
const char *  opt 
)
static

◆ check_file_access_chroot_inline()

static bool check_file_access_chroot_inline ( bool  is_inline,
const char *  chroot,
const int  type,
const char *  file,
const int  mode,
const char *  opt 
)
static

A wrapper for check_file_access_chroot() that returns false immediately if the file is inline (and therefore there is no access to check)

Definition at line 3969 of file options.c.

References check_file_access_chroot().

Referenced by options_postprocess_filechecks().

◆ check_file_access_inline()

static bool check_file_access_inline ( bool  is_inline,
const int  type,
const char *  file,
const int  mode,
const char *  opt 
)
static

A wrapper for check_file_access() that returns false immediately if the file is inline (and therefore there is no access to check)

Definition at line 3986 of file options.c.

References check_file_access().

Referenced by options_postprocess_filechecks().

◆ check_inline_file()

static int check_inline_file ( struct in_src is,
char *  p[],
struct gc_arena gc 
)
static

◆ check_inline_file_via_buf()

static int check_inline_file_via_buf ( struct buffer multiline,
char *  p[],
struct gc_arena gc 
)
static

Definition at line 5260 of file options.c.

References check_inline_file(), IS_TYPE_BUF, in_src::multiline, in_src::type, and in_src::u.

Referenced by read_config_string().

◆ check_inline_file_via_fp()

static int check_inline_file_via_fp ( FILE *  fp,
char *  p[],
struct gc_arena gc 
)
static

Definition at line 5251 of file options.c.

References check_inline_file(), in_src::fp, IS_TYPE_FP, in_src::type, and in_src::u.

Referenced by read_config_file().

◆ cnol_check_alloc()

static void cnol_check_alloc ( struct options options)
static

Definition at line 1701 of file options.c.

References options::client_nat, options::gc, and new_client_nat_list().

Referenced by add_option(), and pre_connect_restore().

◆ connection_entry_load_re()

static void connection_entry_load_re ( struct connection_entry ce,
const struct remote_entry re 
)
static

◆ connection_entry_preload_key()

static void connection_entry_preload_key ( const char **  key_file,
bool *  key_inline,
struct gc_arena gc 
)
static

Definition at line 2282 of file options.c.

References buf_valid(), buffer_read_from_file(), buffer::data, M_FATAL, and msg.

Referenced by options_postprocess_mutate_ce().

◆ dhcp_option_address_parse()

static void dhcp_option_address_parse ( const char *  name,
const char *  parm,
in_addr_t *  array,
int *  len,
int  msglevel 
)
static

Definition at line 1320 of file options.c.

References get_ip_addr(), ip_addr_dotted_quad_safe(), msg, and N_DHCP_ADDR.

Referenced by add_option().

◆ dhcp_option_dns6_parse()

static void dhcp_option_dns6_parse ( const char *  parm,
struct in6_addr *  dns6_list,
int *  len,
int  msglevel 
)
static

Definition at line 1306 of file options.c.

References get_ipv6_addr(), msg, and N_DHCP_ADDR.

Referenced by add_option().

◆ get_ip_addr()

static in_addr_t get_ip_addr ( const char *  ip_string,
int  msglevel,
bool *  error 
)
static

Definition at line 1076 of file options.c.

References getaddr(), GETADDR_FATAL, GETADDR_HOST_ORDER, and M_FATAL.

Referenced by add_option(), and dhcp_option_address_parse().

◆ get_ipv6_addr_no_netbits()

static char* get_ipv6_addr_no_netbits ( const char *  addr,
struct gc_arena gc 
)
static

Returns newly allocated string containing address part without "/nn".

If gc != NULL, the allocated memory is registered in the supplied gc.

Definition at line 1101 of file options.c.

References gc_malloc(), buffer::len, and string_alloc().

Referenced by add_option().

◆ in_src_get()

static bool in_src_get ( const struct in_src is,
char *  line,
const int  size 
)
static

◆ init_options()

void init_options ( struct options o,
const bool  init_gc 
)

Definition at line 789 of file options.c.

References connection_entry::af, options::allow_recursive_routing, options::auth_token_generate, options::authname, connection_entry::bind_ipv6_only, connection_entry::bind_local, options::block_outside_dns, options::ce, options::cf_initial_max, options::cf_initial_per, CLEAR, options::connect_retry_max, connection_entry::connect_retry_seconds, connection_entry::connect_retry_seconds_max, connection_entry::connect_timeout, DEFAULT_SEQ_BACKTRACK, DEFAULT_TIME_BACKTRACK, tuntap_options::dhcp_lease_time, tuntap_options::dhcp_masq_offset, tuntap_options::disable_dco, options::dns_options, options::ecdh_curve, dns_options::gc, options::gc, gc_init(), options::gc_owned, options::handshake_window, options::ifconfig_pool_persist_refresh_freq, tuntap_options::ip_win32_type, IPW32_SET_ADAPTIVE, IPW32_SET_DHCP_MASQ, options::key_direction, KEY_DIRECTION_BIDIRECTIONAL, connection_entry::link_mtu, LINK_MTU_DEFAULT, connection_entry::local_port, M_USAGE, options::management_echo_buffer_size, options::management_log_history_cache, options::management_state_buffer_size, options::max_clients, options::max_routes_per_client, options::mode, MODE_POINT_TO_POINT, msg, connection_entry::mssfix, connection_entry::mssfix_default, connection_entry::mssfix_encap, connection_entry::mtu_discover_type, options::n_bcast_buf, options::occ, connection_entry::occ_mtu, OPENVPN_PORT, options::persist_mode, connection_entry::proto, options::proto_force, PROTO_UDP, options::real_hash_size, connection_entry::remote_port, options::renegotiate_bytes, options::renegotiate_seconds, options::renegotiate_seconds_min, options::replay_time, options::replay_window, RESOLV_RETRY_INFINITE, options::resolve_in_advance, options::resolve_retry_seconds, options::route_delay_window, options::route_method, ROUTE_METHOD_ADAPTIVE, options::scheduled_exit_interval, options::stale_routes_check_interval, options::status_file_update_freq, options::status_file_version, options::tcp_queue_limit, options::tls_cert_profile, connection_entry::tls_mtu, TLS_MTU_DEFAULT, options::tls_timeout, options::tmp_dir, TOP_UNDEF, options::topology, options::transition_window, connection_entry::tun_mtu, TUN_MTU_DEFAULT, options::tuntap_options, options::verbosity, options::virtual_hash_size, options::vlan_accept, VLAN_ALL, options::vlan_pvid, win_get_tempdir(), options::windows_driver, WINDOWS_DRIVER_UNSPECIFIED, and X509_USERNAME_FIELD_DEFAULT.

Referenced by add_option(), openvpn_main(), options_postprocess_verify_ce(), and usage().

◆ ipv6_addr_safe_hexplusbits()

static bool ipv6_addr_safe_hexplusbits ( const char *  ipv6_prefix_spec)
static

Definition at line 1119 of file options.c.

References get_ipv6_addr(), and M_WARN.

Referenced by add_option().

◆ key_is_external()

bool key_is_external ( const struct options options)

Definition at line 5715 of file options.c.

References options::cryptoapi_cert, options::management_flags, and MF_EXTERNAL_KEY.

Referenced by init_ssl().

◆ msglevel_forward_compatible()

static int msglevel_forward_compatible ( struct options options,
const int  msglevel 
)
inlinestatic

Definition at line 5660 of file options.c.

References options::forward_compatible, and M_WARN.

Referenced by add_option().

◆ need_compatibility_before()

static bool need_compatibility_before ( const struct options o,
unsigned int  version 
)
static

The option –compat-mode is used to set up default settings to values used on the specified openvpn version and earlier.

This function is used in various "default option" paths to test if the user requested compatibility with a version before the one specified as argument. This way some default settings can be automatically altered to guarantee compatibility with the version specified by the user via –compat-mode.

Parameters
versionneed compatibility with openvpn versions before the one specified (20401 = before 2.4.1)
Returns
whether compatibility should be enabled

Definition at line 3578 of file options.c.

References options::backwards_compatible.

Referenced by options_set_backwards_compatible_options().

◆ no_more_than_n_args()

static bool no_more_than_n_args ( const int  msglevel,
char *  p[],
const int  max,
const unsigned int  flags 
)
static

Definition at line 5632 of file options.c.

References msg, NM_QUOTE_HINT, and string_array_len().

Referenced by add_option().

◆ notnull()

void notnull ( const char *  arg,
const char *  description 
)

Definition at line 4913 of file options.c.

References M_USAGE, and msg.

Referenced by do_persist_tuntap(), options_postprocess_mutate(), and options_postprocess_verify_ce().

◆ option_iroute()

static void option_iroute ( struct options o,
const char *  network_str,
const char *  netmask_str,
int  msglevel 
)
static

◆ option_iroute_ipv6()

static void option_iroute_ipv6 ( struct options o,
const char *  prefix_str,
int  msglevel 
)
static

◆ options_cmp_equal()

bool options_cmp_equal ( char *  actual,
const char *  expected 
)

Definition at line 4470 of file options.c.

References options_cmp_equal_safe().

Referenced by key_method_2_read().

◆ options_cmp_equal_safe()

bool options_cmp_equal_safe ( char *  actual,
const char *  expected,
size_t  actual_n 
)

Definition at line 4612 of file options.c.

References D_SHOW_OCC, gc_free(), gc_new(), msg, and options_warning_safe_ml().

Referenced by options_cmp_equal(), and process_received_occ_msg().

◆ options_detach()

void options_detach ( struct options o)

◆ options_postprocess()

void options_postprocess ( struct options options,
struct env_set es 
)

◆ options_postprocess_cipher()

static void options_postprocess_cipher ( struct options o)
static

◆ options_postprocess_filechecks()

static void options_postprocess_filechecks ( struct options options)
static

◆ options_postprocess_http_proxy_override()

static void options_postprocess_http_proxy_override ( struct options o)
static

◆ options_postprocess_mutate()

static void options_postprocess_mutate ( struct options o,
struct env_set es 
)
static

Definition at line 3682 of file options.c.

References alloc_connection_entry(), connection_list::array, remote_list::array, ASSERT, options::auth_token_generate, options::auth_token_renewal, options::ca_file, options::ca_path, options::ce, check_compression_settings_valid(), options::comp, COMP_F_ALLOW_NOCOMP_ONLY, options::config, connection_entry_load_re(), options::connection_list, D_DCO, dco_check_option(), dco_check_startup_option(), dco_enabled(), options::dev_node, options::dh_file, tuntap_options::disable_dco, options::dns_options, dns_options_preprocess_pull(), es, compress_options::flags, options::gc, helper_client_server(), helper_keepalive(), helper_setdefault_topology(), helper_tcp_nodelay(), options::http_proxy_override, connection_list::len, remote_list::len, M_INFO, M_USAGE, M_WARN, msg, mutate_ncp_cipher_list(), options::ncp_ciphers, notnull(), options_postprocess_cipher(), options_postprocess_http_proxy_override(), options_postprocess_mutate_ce(), options_postprocess_mutate_invariant(), options_postprocess_setdefault_ncpciphers(), options_process_mutate_prf(), options_set_backwards_compatible_options(), pre_connect_save(), options::pull, options::remap_sigusr1, remote_entry::remote, options::remote_list, options::renegotiate_seconds, streq, options::tls_server, options::tuntap_options, tuntap_options_copy_dns(), options::verify_hash, options::verify_hash_depth, options::verify_hash_no_ca, options::windows_driver, WINDOWS_DRIVER_DCO, WINDOWS_DRIVER_TAP_WINDOWS6, and WINDOWS_DRIVER_UNSPECIFIED.

Referenced by options_postprocess().

◆ options_postprocess_mutate_ce()

static void options_postprocess_mutate_ce ( struct options o,
struct connection_entry ce 
)
static

Definition at line 3108 of file options.c.

References connection_entry::af, connection_entry::bind_defined, connection_entry::bind_local, options::ce, CE_DISABLED, options::client, connection_entry_preload_key(), options::dev, options::dev_type, dev_type_enum(), DEV_TYPE_TAP, connection_entry::explicit_exit_notification, connection_entry::flags, connection_entry::fragment, options::gc, connection_entry::http_proxy_options, connection_entry::key_direction, options::key_direction, connection_entry::link_mtu_defined, connection_entry::local, connection_entry::local_port, connection_entry::local_port_defined, M_INFO, M_WARN, msg, connection_entry::mssfix, MSSFIX_DEFAULT, connection_entry::mssfix_default, connection_entry::mssfix_encap, connection_entry::mssfix_fixed, http_proxy_options::nocache, connection_entry::proto, options::proto_force, proto_is_udp(), PROTO_TCP, PROTO_TCP_CLIENT, PROTO_TCP_SERVER, PROTO_UDP, options::pull, options::server_bridge_defined, options::server_bridge_proxy_dhcp, options::server_defined, connection_entry::socks_proxy_server, ssl_get_auth_nocache(), TAP_MTU_EXTRA_DEFAULT, connection_entry::tls_auth_file, options::tls_auth_file, connection_entry::tls_auth_file_inline, options::tls_auth_file_inline, connection_entry::tls_crypt_file, options::tls_crypt_file, connection_entry::tls_crypt_file_inline, options::tls_crypt_file_inline, connection_entry::tls_crypt_v2_file, options::tls_crypt_v2_file, connection_entry::tls_crypt_v2_file_inline, options::tls_crypt_v2_file_inline, connection_entry::tun_mtu, TUN_MTU_DEFAULT, connection_entry::tun_mtu_defined, connection_entry::tun_mtu_extra, and connection_entry::tun_mtu_extra_defined.

Referenced by options_postprocess_mutate().

◆ options_postprocess_mutate_invariant()

static void options_postprocess_mutate_invariant ( struct options options)
static

◆ options_postprocess_pull()

bool options_postprocess_pull ( struct options o,
struct env_set es 
)

◆ options_postprocess_setdefault_ncpciphers()

static void options_postprocess_setdefault_ncpciphers ( struct options o)
static

Checks for availibility of Chacha20-Poly1305 and sets the ncp_cipher to either AES-256-GCM:AES-128-GCM or AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305.

Definition at line 3494 of file options.c.

References cipher_valid(), dco_enabled(), dco_get_supported_ciphers(), options::ncp_ciphers, and tls_item_in_cipher_list().

Referenced by options_postprocess_mutate().

◆ options_postprocess_verify()

static void options_postprocess_verify ( const struct options o)
static

◆ options_postprocess_verify_ce()

static void options_postprocess_verify_ce ( const struct options options,
const struct connection_entry ce 
)
static

Definition at line 2321 of file options.c.

References options::allow_deprecated_insecure_static_crypto, options::allow_recursive_routing, connection_list::array, options::auth_token_generate, options::auth_token_renewal, options::auth_user_pass_file, options::auth_user_pass_verify_script, connection_entry::bind_defined, connection_entry::bind_local, options::ca_file, options::ca_path, options::ccd_exclusive, options::ce, options::cert_file, options::cf_max, options::cf_per, check_ca_required(), options::cipher_list, options::cipher_list_tls13, options::client_config_dir, options::client_connect_script, options::client_crresponse_script, options::client_disconnect_script, options::connection_list, options::crl_file, options::cryptoapi_cert, options::dev, options::dev_type, dev_type_enum(), DEV_TYPE_TAP, DEV_TYPE_TUN, DEV_TYPE_UNDEF, options::dh_file, tuntap_options::dhcp_options, DHCP_OPTIONS_DHCP_REQUIRED, options::duplicate_cn, options::enable_c2c, route_option_list::flags, options::force_key_material_export, connection_entry::fragment, options::handshake_window, connection_entry::http_proxy_options, options::ifconfig_ipv6_local, options::ifconfig_ipv6_pool_defined, options::ifconfig_local, options::ifconfig_pool_defined, options::ifconfig_pool_netmask, options::ifconfig_pool_persist_filename, options::ifconfig_remote_netmask, init_options(), tuntap_options::ip_win32_defined, tuntap_options::ip_win32_type, options::ipchange, IPW32_SET_ADAPTIVE, IPW32_SET_DHCP_MASQ, options::learn_address_script, connection_list::len, connection_entry::link_mtu_defined, options::lladdr, connection_entry::local, connection_entry::local_port, connection_entry::local_port_defined, M_FATAL, M_INFO, M_USAGE, M_WARN, MAN_CLIENT_AUTH_ENABLED, options::management_addr, options::management_client_group, options::management_client_user, options::management_flags, options::management_log_history_cache, options::management_user_pass, MF_EXTERNAL_CERT, MF_EXTERNAL_KEY, MF_EXTERNAL_KEY_NOPADDING, MF_UNIX_SOCK, options::mode, MODE_SERVER, msg, options::mtu_test, MUST_BE_UNDEF, notnull(), options::ns_cert_type, pkcs11_id_management, options::pkcs12_file, PLUGIN_OPTION_LIST, print_windows_driver(), options::priv_key_file, connection_entry::proto, proto_is_dgram(), proto_is_net(), proto_is_udp(), PROTO_TCP, PROTO_TCP_CLIENT, PROTO_TCP_SERVER, options::pull, options::pull_filter_list, push_peer_info(), options::real_hash_size, connection_entry::remote, options::remote_cert_eku, options::remote_cert_ku, connection_entry::remote_port, options::renegotiate_bytes, options::renegotiate_packets, options::renegotiate_seconds, RG_ENABLE, options::route_delay_defined, options::routes, http_proxy_options::server, options::server_flags, SF_TCP_NODELAY_HELPER, options::shaper, options::shared_secret_file, options::single_session, connection_entry::socks_proxy_server, options::ssl_flags, SSLF_AUTH_USER_PASS_OPTIONAL, SSLF_CLIENT_CERT_NOT_REQUIRED, SSLF_CLIENT_CERT_OPTIONAL, SSLF_OPT_VERIFY, SSLF_TLS_VERSION_MAX_MASK, SSLF_TLS_VERSION_MAX_SHIFT, SSLF_TLS_VERSION_MIN_MASK, SSLF_TLS_VERSION_MIN_SHIFT, SSLF_USERNAME_AS_COMMON_NAME, options::stale_routes_check_interval, string_defined_equal(), options::test_crypto, connection_entry::tls_auth_file, options::tls_auth_file, options::tls_cert_profile, options::tls_client, connection_entry::tls_crypt_file, options::tls_crypt_file, connection_entry::tls_crypt_v2_file, options::tls_crypt_v2_file, options::tls_exit, options::tls_export_peer_cert_dir, options::tls_server, options::tls_timeout, TLS_VER_1_3, tls_verify(), tls_version_max(), TOP_SUBNET, options::topology, options::transition_window, connection_entry::tun_mtu_defined, options::tuntap_options, uninit_options(), options::up_delay, USAGE_VALID_SERVER_PROTOS, options::verify_x509_name, options::virtual_hash_size, options::vlan_accept, options::vlan_pvid, options::vlan_tagging, options::windows_driver, WINDOWS_DRIVER_TAP_WINDOWS6, and WINDOWS_DRIVER_WINTUN.

Referenced by options_postprocess_verify().

◆ options_process_mutate_prf()

static void options_process_mutate_prf ( struct options o)
static

◆ options_server_import()

void options_server_import ( struct options o,
const char *  filename,
int  msglevel,
unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)

Definition at line 5533 of file options.c.

References D_PUSH, es, msg, and read_config_file().

Referenced by multi_client_connect_post(), and multi_client_connect_source_ccd().

◆ options_set_backwards_compatible_options()

static void options_set_backwards_compatible_options ( struct options o)
static

◆ options_string()

char* options_string ( const struct options o,
const struct frame frame,
struct tuntap tt,
openvpn_net_ctx_t ctx,
bool  remote,
struct gc_arena gc 
)

◆ options_string_extract_option()

char* options_string_extract_option ( const char *  options_string,
const char *  opt_name,
struct gc_arena gc 
)

Given an OpenVPN options string, extract the value of an option.

Parameters
options_stringZero-terminated, comma-separated options string
opt_nameThe name of the option to extract
gcThe gc to allocate the return value
Returns
gc-allocated value of option with name opt_name if option was found, or NULL otherwise.

Definition at line 4649 of file options.c.

References gc_malloc(), and options_string().

Referenced by key_method_2_read().

◆ options_string_import()

void options_string_import ( struct options options,
const char *  config,
const int  msglevel,
const unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)

Definition at line 5553 of file options.c.

References es, and read_config_string().

Referenced by multi_client_connect_mda(), multi_client_connect_post_plugin(), and open_plugins().

◆ options_string_version()

const char* options_string_version ( const char *  s,
struct gc_arena gc 
)

Definition at line 4641 of file options.c.

References alloc_buf_gc(), BPTR, BSTR, and strncpynt().

Referenced by do_compute_occ_strings().

◆ options_warning()

void options_warning ( char *  actual,
const char *  expected 
)

Definition at line 4476 of file options.c.

References options_warning_safe().

Referenced by key_method_2_read().

◆ options_warning_extract_parm1()

static const char* options_warning_extract_parm1 ( const char *  option_string,
struct gc_arena gc_ret 
)
static

◆ options_warning_safe()

void options_warning_safe ( char *  actual,
const char *  expected,
size_t  actual_n 
)

Definition at line 4635 of file options.c.

References D_SHOW_OCC, and options_warning_safe_ml().

Referenced by options_warning(), and process_received_occ_msg().

◆ options_warning_safe_ml()

static void options_warning_safe_ml ( const int  msglevel,
char *  actual,
const char *  expected,
size_t  actual_n 
)
static

◆ options_warning_safe_scan1()

static void options_warning_safe_scan1 ( const int  msglevel,
const int  delim,
const bool  report_inconsistent,
const struct buffer b1_src,
const struct buffer b2_src,
const char *  b1_name,
const char *  b2_name 
)
static

◆ options_warning_safe_scan2()

static void options_warning_safe_scan2 ( const int  msglevel,
const int  delim,
const bool  report_inconsistent,
const char *  p1,
const struct buffer b2_src,
const char *  b1_name,
const char *  b2_name 
)
static

◆ parse_argv()

void parse_argv ( struct options options,
const int  argc,
char *  argv[],
const int  msglevel,
const unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)

Definition at line 5390 of file options.c.

References add_option(), CLEAR, es, MAX_PARMS, msg, and usage().

Referenced by openvpn_main().

◆ parse_hash_fingerprint()

static struct verify_hash_list* parse_hash_fingerprint ( const char *  str,
int  nbytes,
int  msglevel,
struct gc_arena gc 
)
static

Parses a hexstring and checks if the string has the correct length.

Return a verify_hash_list containing the parsed hash string.

Parameters
strString to check/parse
nbytesNumber of bytes expected in the hexstr (e.g. 20 for SHA1)
msglevelmessage level to use when printing warnings/errors
gcThe returned object will be allocated in this gc

Definition at line 1157 of file options.c.

References ALLOC_OBJ_CLEAR_GC, verify_hash_list::hash, and msg.

Referenced by parse_hash_fingerprint_multiline().

◆ parse_hash_fingerprint_multiline()

static struct verify_hash_list* parse_hash_fingerprint_multiline ( const char *  str,
int  nbytes,
int  msglevel,
struct gc_arena gc 
)
static

Parses a string consisting of multiple lines of hexstrings and checks if each string has the correct length.

Empty lines are ignored. Returns a linked list of (possibly) multiple verify_hash_list objects.

Parameters
strString to check/parse
nbytesNumber of bytes expected in the hexstring (e.g. 20 for SHA1)
msglevelmessage level to use when printing warnings/errors
gcThe returned list items will be allocated in this gc

Definition at line 1211 of file options.c.

References gc_free(), gc_new(), verify_hash_list::hash, parse_hash_fingerprint(), string_alloc(), and strsep().

Referenced by add_option().

◆ parse_http_proxy_override()

static struct http_proxy_options* parse_http_proxy_override ( const char *  server,
const char *  port,
const char *  flags,
const int  msglevel,
struct gc_arena gc 
)
static

◆ parse_line()

int parse_line ( const char *  line,
char *  p[],
const int  n,
const char *  file,
const int  line_num,
int  msglevel,
struct gc_arena gc 
)

◆ parse_topology()

int parse_topology ( const char *  str,
const int  msglevel 
)

Definition at line 4716 of file options.c.

References msg, streq, TOP_NET30, TOP_P2P, TOP_SUBNET, and TOP_UNDEF.

Referenced by add_option().

◆ parse_windows_driver()

static enum windows_driver_type parse_windows_driver ( const char *  str,
const int  msglevel 
)
static

Parses –windows-driver config option.

Parameters
strvalue of –windows-driver option
msglevelmsglevel to report parsing error
Returns
enum windows_driver_type driver type, WINDOWS_DRIVER_UNSPECIFIED on unknown –windows-driver value

Definition at line 4687 of file options.c.

References msg, streq, WINDOWS_DRIVER_DCO, WINDOWS_DRIVER_TAP_WINDOWS6, WINDOWS_DRIVER_UNSPECIFIED, and WINDOWS_DRIVER_WINTUN.

Referenced by add_option().

◆ positive_atoi()

static int positive_atoi ( const char *  str)
static

Definition at line 4943 of file options.c.

Referenced by add_option().

◆ pre_connect_restore()

void pre_connect_restore ( struct options o,
struct gc_arena gc 
)

◆ pre_connect_save()

static void pre_connect_save ( struct options o)
static

◆ print_topology()

const char* print_topology ( const int  topology)

Definition at line 4738 of file options.c.

References TOP_NET30, TOP_P2P, TOP_SUBNET, and TOP_UNDEF.

Referenced by print_opt_topology().

◆ print_vlan_accept()

static const char* print_vlan_accept ( enum vlan_acceptable_frames  mode)
static

Definition at line 1493 of file options.c.

References VLAN_ALL, VLAN_ONLY_TAGGED, and VLAN_ONLY_UNTAGGED_OR_PRIORITY.

Referenced by show_p2mp_parms().

◆ pull_filter_type_name()

static const char* pull_filter_type_name ( int  type)
static

Definition at line 949 of file options.c.

References PUF_TYPE_ACCEPT, PUF_TYPE_IGNORE, PUF_TYPE_REJECT, and pull_filter::type.

Referenced by show_pull_filter_list().

◆ read_config_file()

static void read_config_file ( struct options options,
const char *  file,
int  level,
const char *  top_file,
const int  top_line,
const int  msglevel,
const unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)
static

◆ read_config_string()

static void read_config_string ( const char *  prefix,
struct options options,
const char *  config,
const int  msglevel,
const unsigned int  permission_mask,
unsigned int *  option_types_found,
struct env_set es 
)
static

◆ read_inline_file()

static char* read_inline_file ( struct in_src is,
const char *  close_tag,
int *  num_lines,
struct gc_arena gc 
)
static

◆ remap_redirect_gateway_flags()

static void remap_redirect_gateway_flags ( struct options opt)
static

◆ rol6_check_alloc()

static void rol6_check_alloc ( struct options options)
static

Definition at line 1692 of file options.c.

References options::gc, new_route_ipv6_option_list(), and options::routes_ipv6.

Referenced by add_option(), and pre_connect_restore().

◆ rol_check_alloc()

void rol_check_alloc ( struct options options)

Definition at line 1683 of file options.c.

References options::gc, new_route_option_list(), and options::routes.

Referenced by add_option(), helper_add_route(), and pre_connect_restore().

◆ set_user_script()

static void set_user_script ( struct options options,
const char **  script,
const char *  new_script,
const char *  type,
bool  in_chroot 
)
static

◆ setenv_connection_entry()

static void setenv_connection_entry ( struct env_set es,
const struct connection_entry e,
const int  i 
)
static

◆ setenv_settings()

void setenv_settings ( struct env_set es,
const struct options o 
)

◆ show_compression_warning()

static void show_compression_warning ( struct compress_options info)
static

Definition at line 5696 of file options.c.

References COMP_F_ALLOW_COMPRESS, comp_non_stub_enabled(), compress_options::flags, M_WARN, and msg.

Referenced by add_option().

◆ show_connection_entries()

static void show_connection_entries ( const struct options o)
static

◆ show_connection_entry()

static void show_connection_entry ( const struct connection_entry o)
static

◆ show_dco_version()

void show_dco_version ( const unsigned int  flags)

Definition at line 4866 of file options.c.

References dco_version_string(), gc_free(), gc_new(), and msg.

Referenced by openvpn_main(), and usage_version().

◆ show_dhcp_option_addrs()

static void show_dhcp_option_addrs ( const char *  name,
const in_addr_t *  array,
int  len 
)
static

Definition at line 1264 of file options.c.

References D_SHOW_PARMS, gc_free(), gc_new(), msg, and print_in_addr_t().

Referenced by show_tuntap_options().

◆ show_dhcp_option_list()

static void show_dhcp_option_list ( const char *  name,
const char *const *  array,
int  len 
)
static

Definition at line 1254 of file options.c.

References D_SHOW_PARMS, and msg.

Referenced by show_tuntap_options().

◆ show_http_proxy_options()

static void show_http_proxy_options ( const struct http_proxy_options o)
static

◆ show_library_versions()

void show_library_versions ( const unsigned int  flags)

Definition at line 4876 of file options.c.

References get_ssl_library_version(), LZO_LIB_VER_STR, and msg.

Referenced by openvpn_main(), and usage_version().

◆ show_p2mp_parms()

static void show_p2mp_parms ( const struct options o)
static

◆ show_pull_filter_list()

static void show_pull_filter_list ( const struct pull_filter_list l)
static

Definition at line 1780 of file options.c.

References D_SHOW_PARMS, http-client::f, pull_filter_list::head, msg, and pull_filter_type_name().

Referenced by show_settings().

◆ show_settings()

void show_settings ( const struct options o)

◆ show_tuntap_options()

static void show_tuntap_options ( const struct tuntap_options o)
static

◆ show_windows_version()

void show_windows_version ( const unsigned int  flags)

Definition at line 4857 of file options.c.

References gc_free(), gc_new(), msg, and win32_version_string().

Referenced by openvpn_main(), and usage_version().

◆ space()

static bool space ( unsigned char  c)
inlinestatic

Definition at line 4960 of file options.c.

Referenced by parse_line().

◆ string_defined_equal()

bool string_defined_equal ( const char *  s1,
const char *  s2 
)

Definition at line 4922 of file options.c.

Referenced by options_postprocess_verify_ce().

◆ string_substitute()

static char* string_substitute ( const char *  src,
int  from,
int  to,
struct gc_arena gc 
)
static

Definition at line 1128 of file options.c.

References gc_malloc().

Referenced by add_option().

◆ tuntap_options_copy_dns()

static void tuntap_options_copy_dns ( struct options o)
static

◆ uninit_options()

void uninit_options ( struct options o)

◆ usage()

static void usage ( void  )
static

◆ usage_small()

void usage_small ( void  )

Definition at line 4849 of file options.c.

References M_NOPREFIX, M_WARN, msg, openvpn_exit(), and OPENVPN_EXIT_STATUS_USAGE.

Referenced by x_msg_va().

◆ usage_version()

static void usage_version ( void  )
static

◆ verify_permission()

static bool verify_permission ( const char *  name,
const char *  file,
int  line,
const unsigned int  type,
const unsigned int  allowed,
unsigned int *  found,
const int  msglevel,
struct options options,
bool  is_inline 
)
static

Variable Documentation

◆ global_auth_retry

int global_auth_retry
static

Definition at line 4763 of file options.c.

Referenced by auth_retry_get(), auth_retry_print(), and auth_retry_set().

◆ title_string

const char title_string[]

◆ usage_message

const char usage_message[]
static

Definition at line 118 of file options.c.

Referenced by usage().

verify_permission
static bool verify_permission(const char *name, const char *file, int line, const unsigned int type, const unsigned int allowed, unsigned int *found, const int msglevel, struct options *options, bool is_inline)
Definition: options.c:5572
options
Definition: options.h:236
SHOW_PARM
#define SHOW_PARM(name, value, format)
Definition: options.c:969
M_USAGE
#define M_USAGE
Definition: error.h:106
msg
#define msg(flags,...)
Definition: error.h:144