IPTFS_DEFAU...P_TIME_USECS(9)

💅 IPTFS_DEFAU...P_TIME_USECS(9) — like, the Kernel API Manual, bestie ✨

okay so real talk, this is a page straight out of the Kernel API Manual and it's genuinely iconic, so let's get into it 🎀

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🌸 NAME 🌸

IPTFS_DEFAULT_DROP_TIME_USECS — the default drop time, no cap 💖

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✨ SYNOPSIS ✨

IPTFS_DEFAULT_DROP_TIME_USECS

that's it. that's the whole synopsis. she's a constant, she's lowkey mysterious, she serves 🫶

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🦋 DESCRIPTION 🦋

okay so bestie, this is the default IPTFS drop time, measured in microseconds ⏱️✨

and what even is a drop time? so glad you asked 💅 — it's the amount of time that passes before a missing out-of-order IPTFS tunnel packet is considered lost. like, the packet didn't show up to the group chat in time, so we're officially declaring it gone 😭

also, go peek at the reorder window, they're besties and they're both about this same whole vibe, iykyk 👑

default: 1s — yeah, one whole second. give the packet a minute, she's on her way 🚶‍♀️

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👑 SEE ALSO 👑

everything below lives in the kernel file ./net/xfrm/xfrm_iptfs.c, and honestly the crossover episode is stacked, we love a connected ecosystem 🌈:

• IPTFS_DEFAULT_REORDER_WINDOW(9)
• IPTFS_DEFAULT_INIT_DELAY_USECS(9)
• IPTFS_DEFAULT_MAX_QUEUE_SIZE(9)
• struct xfrm_iptfs_config(9)
• struct xfrm_iptfs_data(9)
• iptfs_alloc_skb(9)
• iptfs_skb_head_to_frag(9)
• struct iptfs_skb_frag_walk(9)
• iptfs_skb_prepare_frag_walk(9)
• iptfs_skb_can_add_frags(9)
• iptfs_skb_add_frags(9)
• iptfs_pskb_add_frags(9)
• iptfs_pskb_extract_seq(9)
• iptfs_input_save_runt(9)
• __iptfs_iphlen(9)
• __iptfs_iplen(9)
• iptfs_complete_inner_skb(9)
• iptfs_reassem_abort(9)
• iptfs_reassem_done(9)
• iptfs_reassem_cont(9)
• iptfs_input_ordered(9)
• iptfs_drop_timer(9)
• iptfs_input(9)
• iptfs_enqueue(9)
• iptfs_copy_create_frag(9)
• iptfs_copy_create_frags(9)
• iptfs_first_skb(9)
• iptfs_encap_add_ipv4(9)
• iptfs_encap_add_ipv6(9)
• iptfs_prepare_output(9)
• __iptfs_get_inner_mtu(9)
• iptfs_get_inner_mtu(9)
• iptfs_user_init(9)

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and that's the whole page, periodt 💅✨ huge shoutout to ./net/xfrm, dated October 2026 — mwah, thanks for reading bestie, you ate that 🍓🧚‍♀️💜