knet_get_crypto_cipher_list - Man Page

#include <libknet.h>

int knet_get_crypto_cipher_list(
    struct knet_crypto_cipher_info   *cipher_list,
    size_t                           *cipher_list_entries
);

knet_get_crypto_cipher_list

This function returns cipher modes that are supported across all crypto backends (OpenSSL, NSS, libgcrypt). The list represents the intersection of capabilities, not backend-specific features.

cipher_list - array of struct knet_crypto_cipher_info If NULL then only the number of structs is returned in cipher_list_entries to allow the caller to allocate sufficient space. It is safe to allocate 32 structs to avoid calling this function twice.

cipher_list_entries - returns the number of ciphers in cipher_list

Structure returned from knet_get_crypto_cipher_list() containing information about supported cipher modes 


struct knet_crypto_cipher_info {


    /*
     * Cipher name (e.g., "aes-256-ctr", "aes256", "aes128-ctr")
     */
    const char   *name;

    const char   *mode;      /* Cipher mode: "cbc" or "ctr" */

    int           key_bits;  /* Key size in bits (128, 192, or 256) */

    char          pad[256];  /* Currently unused padding */
};

knet_get_crypto_cipher_list returns 0 on success -1 on error and errno is set.

knet_handle_remove_datafd(3), knet_handle_get_stats(3), knet_host_add(3), knet_handle_pmtud_setfreq(3), knet_handle_pmtud_get(3), knet_handle_crypto_use_config(3), knet_host_get_id_by_host_name(3), knet_host_get_status(3), knet_link_add_acl(3), knet_link_get_pong_count(3), knet_link_get_priority(3), knet_handle_free(3), knet_handle_enable_sock_notify(3), knet_handle_get_datafd(3), knet_recv(3), knet_link_get_ping_timers(3), knet_log_get_subsystem_id(3), knet_host_remove(3), knet_host_enable_status_change_notify(3), knet_strtoaddr(3), knet_link_rm_acl(3), knet_send(3), knet_handle_enable_pmtud_notify(3), knet_handle_get_transport_reconnect_interval(3), knet_link_get_enable(3), knet_link_set_priority(3), knet_log_set_loglevel(3), knet_handle_get_channel(3), knet_link_get_config(3), knet_link_get_link_list(3), knet_get_crypto_hash_list(3), knet_get_transport_list(3), knet_get_transport_id_by_name(3), knet_log_get_loglevel_id(3), knet_handle_new_ex(3), knet_host_set_name(3), knet_addrtostr(3), knet_handle_setfwd(3), knet_get_compress_list(3), knet_host_set_policy(3), knet_get_transport_name_by_id(3), knet_handle_enable_filter(3), knet_handle_crypto_rx_clear_traffic(3), knet_handle_compress(3), knet_link_get_status(3), knet_handle_add_datafd(3), knet_send_sync(3), knet_log_get_loglevel_name(3), knet_handle_enable_access_lists(3), knet_host_get_host_list(3), knet_host_get_policy(3), knet_link_set_enable(3), knet_link_set_pong_count(3), knet_log_get_subsystem_name(3), knet_host_get_name_by_host_id(3), knet_link_clear_config(3), knet_log_get_loglevel(3), knet_handle_new(3), knet_handle_pmtud_getfreq(3), knet_handle_pmtud_set(3), knet_handle_clear_stats(3), knet_link_set_config(3), knet_handle_crypto_set_config(3), knet_handle_crypto(3), knet_get_crypto_list(3), knet_handle_set_transport_reconnect_interval(3), knet_link_clear_acl(3), knet_link_set_ping_timers(3), knet_handle_setprio_dscp(3), knet_link_insert_acl(3)

Copyright (C) 2010-2026 Red Hat, Inc. All rights reserved.

knet_addrtostr(3), knet_get_compress_list(3), knet_get_crypto_hash_list(3), knet_get_crypto_list(3), knet_get_transport_id_by_name(3), knet_get_transport_list(3), knet_get_transport_name_by_id(3), knet_handle_add_datafd(3), knet_handle_clear_stats(3), knet_handle_compress(3), knet_handle_crypto(3), knet_handle_crypto_rx_clear_traffic(3), knet_handle_crypto_set_config(3), knet_handle_crypto_use_config(3), knet_handle_enable_access_lists(3), knet_handle_enable_filter(3), knet_handle_enable_pmtud_notify(3), knet_handle_enable_sock_notify(3), knet_handle_free(3), knet_handle_get_channel(3), knet_handle_get_datafd(3), knet_handle_get_stats(3), knet_handle_get_transport_reconnect_interval(3), knet_handle_new(3), knet_handle_new_ex(3), knet_handle_pmtud_get(3), knet_handle_pmtud_getfreq(3), knet_handle_pmtud_set(3), knet_handle_pmtud_setfreq(3), knet_handle_remove_datafd(3), knet_handle_setfwd(3), knet_handle_setprio_dscp(3), knet_handle_set_transport_reconnect_interval(3), knet_host_add(3), knet_host_enable_status_change_notify(3), knet_host_get_host_list(3), knet_host_get_id_by_host_name(3), knet_host_get_name_by_host_id(3), knet_host_get_policy(3), knet_host_get_status(3), knet_host_remove(3), knet_host_set_name(3), knet_host_set_policy(3), knet_link_add_acl(3), knet_link_clear_acl(3), knet_link_clear_config(3), knet_link_get_config(3), knet_link_get_enable(3), knet_link_get_link_list(3), knet_link_get_ping_timers(3), knet_link_get_pong_count(3), knet_link_get_priority(3), knet_link_get_status(3), knet_link_insert_acl(3), knet_link_rm_acl(3), knet_link_set_config(3), knet_link_set_enable(3), knet_link_set_ping_timers(3), knet_link_set_pong_count(3), knet_link_set_priority(3), knet_log_get_loglevel(3), knet_log_get_loglevel_id(3), knet_log_get_loglevel_name(3), knet_log_get_subsystem_id(3), knet_log_get_subsystem_name(3), knet_log_set_loglevel(3), knet_recv(3), knet_send(3), knet_send_sync(3), knet_strtoaddr(3).