nla_strdup(9)

💖 nla_strdup(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a little function from the kernel's netlink-attribute corner of the world, and honestly? she's simple, she's sweet, she duplicates strings. iconic behavior tbh 🎀

---

✨ NAME ✨

nla_strdup — copy a string attribute payload into a brand-new freshly-allocated buffer 💅 like a glow-up for your string, except it's a whole separate copy

---

🌸 SYNOPSIS 🌸

char * nla_strdup (const struct nlattr *nla , gfp_t flags );

---

🦋 ARGUMENTS 🦋

• nla — the attribute you're copying the string from. she's the source, the main character, the original 🫶
• flags — the type of memory to allocate (see kmalloc). yes bestie you gotta tell it how to allocate, no cap

---

💜 DESCRIPTION 💜

Returns a pointer to the allocated buffer ✨ or NULL on error 😭 (and yeah, always check for that NULL, iykyk).

That's it. That's the whole vibe. She dupes the string, she hands you back a pointer, and if things go sideways you get NULL and you deal with it. periodt 💀

---

⭐ SEE ALSO ⭐

Kernel file ./lib/nlattr.c — plus literally the entire netlink attribute friend group, all of them, here we go 👑

• __nla_validate(9)
• nla_policy_len(9)
• __nla_parse(9)
• nla_find(9)
• nla_strscpy(9)
• nla_memcpy(9)
• nla_memcmp(9)
• nla_strcmp(9)
• __nla_reserve(9)
• __nla_reserve_64bit(9)
• __nla_reserve_nohdr(9)
• nla_reserve(9)
• nla_reserve_64bit(9)
• nla_reserve_nohdr(9)
• __nla_put(9)
• __nla_put_64bit(9)
• __nla_put_nohdr(9)
• nla_put(9)
• nla_put_64bit(9)
• nla_put_nohdr(9)
• nla_append(9)

---

lowkey the whole nla_* squad links arms and walks in together, and honestly? we love a supportive friend group 🌈

---

mwah, that's a wrap bestie 💖 this page lives in ./lib and it's stamped October 2026 — go forth and duplicate those strings responsibly, NULL-check everything, and slay 🧚✨👑