KNET_HAND...PRIO_DSCP(3)

💖 KNET_HAND...PRIO_DSCP(3) 💖

okay so bestie, welcome to the Kronosnet Programmer's Manual ✨ this is the page for knet_handle_setprio_dscp(3) and it's genuinely so useful, like lowkey iconic behavior for your sockets. let's get into it 🫶

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🌸 NAME 🌸

knet_handle_setprio_dscp — the way you use dscp for IP_TOS on a socket so you can actually implement KNET_LINK_FLAG_TRAFFICHIPRIO 💅

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✨ SYNOPSIS ✨

#include <libknet.h>

int knet_handle_setprio_dscp(
    knet_handle_t  knet_h,
    uint8_t        dscp
);

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🦋 DESCRIPTION 🦋

so, knet_handle_setprio_dscp is the function, and here's who's who:

• knet_h — pointer to knet_handle_t, your handle bestie 🫶
• dscp — the dscp value you wanna set on all new sockets

🚨 listen up, this is the important part: you have to call this function before you configure your knet links. like, before. not after. fr fr.

what it actually does? it disables the use of IPTOS_LOWDELAY and instead puts your given dscp value in the IP header's TOS field. that's it, that's the whole vibe 🌈

and if you set dscp to 0? it reverts right back to using IPTOS_LOWDELAY. no cap 💀

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👑 RETURN VALUE 👑

knet_handle_setprio_dscp returns 0 on success, -1 on error, and when it errors, errno is set. periodt 💅

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💜 SEE ALSO 💜

the whole group chat, all the besties, every single one:

• 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_get_crypto_cipher_list(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_link_insert_acl(3)

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🎀 COPYRIGHT 🎀

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

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okay bestie that's the whole page, you ate that 🍓 thanks for reading, mwah 💖

this has been kronosnet, dated 2026-07-20 — stay slaying your sockets, ily, byeeeee 👑✨🦋