parse_tag_11_packet(9)

💅 parse_tag_11_packet(9) — from the Kernel API Manual, bestie 🎀

okay so this is a little kernel function from the <pink>Kernel API Manual</pink> and tbh her NAME section is literally empty — she said "no bio, just vibes" ✨. Her name is parse_tag_11_packet and she lives in section 9 of the manual (that's the kernel-API girlies, iykyk 🧚). Let's get into it 💖

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🌸 SYNOPSIS 🌸

Like, here's her whole signature, literally character for character, don't touch it 🫶:

int parse_tag_11_packet (unsigned char *data , unsigned char *contents ,
size_t max_contents_bytes , size_t *tag_11_contents_size , size_t
*packet_size , size_t max_packet_size );

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🦋 ARGUMENTS 🦋

• data — the raw bytes of the packet. just... raw bytes. unprocessed. feral, even 💀
• contents — this function writes the data contents of the literal packet into this memory location. she's filling this one up for you, bestie ✨
• max_contents_bytes — the maximum number of bytes that this function is allowed to write into contents. it's giving boundaries, and honestly? we love a function that respects the limit 👑
• tag_11_contents_size — this function writes the size of the parsed contents into this memory location; zero on error ⭐
• packet_size — this function writes the size of the parsed packet into this memory location; zero on error ⭐
• max_packet_size — maximum number of bytes to parse. that's the ceiling, the limit, the "girl know your place" 💅

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🌈 DESCRIPTION 🌈

Returns zero on success; non-zero on error. that's it. that's the whole description. short queen, main character energy, says exactly what she needs to say and dips 🎀✨

ngl bestie, keep an eye on those two size outputs — they come back as zero when something goes wrong, so if you see a zero where you expected a number, that's your error vibe check failing 😭

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💜 SEE ALSO 💜

Kernel file ./fs/ecryptfs/keystore.c — go read the source, she slays in context 🫶 and while you're there, the whole friend group:

• ecryptfs_parse_packet_length(9)
• ecryptfs_write_packet_length(9)
• ecryptfs_verify_version(9)
• ecryptfs_verify_auth_tok_from_key(9)
• ecryptfs_find_auth_tok_for_sig(9)
• ecryptfs_parse_tag_70_packet(9)
• decrypt_pki_encrypted_session_key(9)
• parse_tag_1_packet(9)
• parse_tag_3_packet(9)
• decrypt_passphrase_encrypted_session_key(9)
• ecryptfs_parse_packet_set(9)
• write_tag_1_packet(9)
• write_tag_11_packet(9)
• write_tag_3_packet(9)
• ecryptfs_generate_key_packet_set(9)

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okay that's the page!! 💖 this one came from the source dir ./fs/ecryptfs, dated October 2026, and the manual name is parse_tag_11_packet(9) in case you forgot already (no judgement, it's a lot of tag packets 😭). mwah, go parse something cute 🎀💅✨