STRUCT CAAM_BLOB_INFO(9)

💖 struct caam_blob_info(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's all about struct caam_blob_info — literally the little info packet that carries everything the CAAM blobbing stuff needs. no cap, it's giving "backstage pass for your keys" energy 🎀

---

🌸 NAME 🌸

struct caam_blob_info — the info you need for CAAM blobbing 💅

---

✨ SYNOPSIS ✨

struct caam_blob_info {
    struct caam_pkey_info pkey_info;
    void *input;
    size_t input_len;
    void *output;
    size_t output_len;
    const void *key_mod;
    size_t key_mod_len;
 };

---

🦋 Members 🦋

okay so here's the whole cast, main character energy each and every one 👑

• pkey_info — pointer that keeps your protected key information safe 🫶 like, don't lose this one.
• input — pointer to the input buffer. ⚠️ and it must be DMAable — that's not optional, bestie.
• input_len — length of the input buffer, in bytes. 📏
• output — pointer to the output buffer. also must be DMAable 💀 same rule, no exceptions.
• output_len — length of the output buffer, in bytes. 📐
• key_mod — the key modifier 🔑
• key_mod_len — length of key_mod in bytes. May not exceed CAAM_BLOB_KEYMOD_LENGTH — like, that's the ceiling, fr fr, don't test it 🙈

---

🌈 SEE ALSO 🌈

• Kernel file ./include/soc/fsl/caam-blob.h
• struct caam_pkey_info(9)
• caam_blob_gen_init(9)
• caam_blob_gen_exit(9)
• caam_process_blob(9)
• caam_encap_blob(9)
• caam_decap_blob(9)

---

okay that's the whole page, bestie, you ate that reading session 💖✨ go forth and blob responsibly 🧚‍♀️

lowkey a note: the source is ./include/soc/fsl, dated October 2026 — that's the version/vibe stamp, iykyk 🎀

slay, you're done, periodt 💅