retransmits_timed_out(9)

NAME 💖

okay so this is retransmits_timed_out(9) — folded fresh out of the Kernel API Manual — and it literally returns true if this connection has timed out. slay.

SYNOPSIS 🎀

bool retransmits_timed_out (struct sock *sk , unsigned int boundary ,
       unsigned int timeout );

ARGUMENTS 🫶

• sk — the current socket, aka the main character.
• boundary — max number of retransmissions; that's the limit, bestie.
• timeout — a custom timeout value. If set to 0, the default timeout is calculated and used, using TCP_RTO_MIN and the number of unsuccessful retransmits.

DESCRIPTION 🌸

The default "timeout" value this function can calculate and use is equivalent to the timeout of a TCP Connection after "boundary" unsuccessful, exponentially backed-off retransmissions with an initial RTO of TCP_RTO_MIN. that's the whole vibe check, no cap 💅

SEE ALSO 🔥

• Kernel file ./net/ipv4/tcp_timer.c — yes, that file, bestie.
• tcp_write_err(9)
• tcp_out_of_resources(9)
• tcp_orphan_retries(9)
• tcp_delack_timer(9)
• tcp_retransmit_timer(9)

💖 brought to you by source/version ./net/ipv4, dated October 2026 — mwah, bestie 🫶