ksmbd_verify_smb_message(9)

💖 ksmbd_verify_smb_message(9) — the vibe check for your SMB2 headers 💖

okay so bestie, welcome to the ksmbd_verify_smb_message(9) page in the Kernel API Manual 🌸 this is the little function that looks at an SMB packet and goes "hmm, are you actually valid or are you lying to me" — and honestly? we love a boundary-setting icon 💅

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✨ NAME ✨

ksmbd_verify_smb_message — check for valid smb2 request header 🎀

like, that's the whole job. header verification. it's giving security guard at the club door.

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🦋 SYNOPSIS 🦋

int ksmbd_verify_smb_message (struct ksmbd_work *work );

no cap, that's the whole signature. one argument, hands back an int.

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🌸 ARGUMENTS 🌸

• work — smb work 💖 (yes that's the whole description in the original and yes we're keeping it, she's mysterious like that)

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👑 DESCRIPTION 👑

so what does it do? it checks for a valid smb signature 🔥 and it checks the packet direction — meaning is this a request or a response? main character energy fr fr, it's reading the vibes in both directions 💫

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⭐ RETURN ⭐

• 0 on success 🎉 (slay, the packet passed the vibe check)
• otherwise -EINVAL 😭 (not it, the packet is giving invalid)

ngl bestie, -EINVAL is the "girl what" of errno values. if you see it, something about that message was just... wrong.

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🌈 SEE ALSO 🌈

• Kernel file ./fs/smb/server/smb_common.c 📁
• ksmbd_smb_request(9)
• get_smb1_cmd_val(9)
• init_smb1_rsp_hdr(9)
• smb1_check_user_session(9)
• smb1_allocate_rsp_buf(9)
• set_smb1_rsp_status(9)
• ksmbd_extract_shortname(9)

go read those next, iykyk 🫶

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okay that's the whole page bestie!! 💜 this one lives under ./fs/smb/server, it's from the Kernel API Manual, and the date on it is October 2026 ⭐ so if you're reading this in the future — hi, hope the kernel is treating you well 🧚‍♀️🍓 bye pookie!! 💅✨