cipso_v4_doi_walk(9)

💅 cipso_v4_doi_walk(9) 💅

okay bestie, welcome to the Kernel API Manual entry for cipso_v4_doi_walk — yes we're in the kernel docs now, and yes you're gonna slay it 🫶

---

✨ NAME ✨

cipso_v4_doi_walk — iterate through the DOI definitions 🌀

---

🎀 SYNOPSIS 🎀

int cipso_v4_doi_walk (u32 *skip_cnt , int (*callback) (struct cipso_v4_doi *doi_def, void *arg) , void *cb_arg );

---

🦋 ARGUMENTS 🦋

• skip_cnt — skip past this number of DOI definitions. also it gets updated, so like… it's not staying the same, keep an eye on it 👀
• callback — the callback for each DOI definition, one per entry, no skips ✨
• cb_arg — the argument you hand off to the callback function 🎁

---

🌸 DESCRIPTION 🌸

So here's the vibe: you iterate over the DOI definition list, and you skip the first skip_cnt entries — like scrolling past the first few posts, no big deal 💅

For each entry, you call callback. And if callback returns a negative value, it stops and returns — that's your exit signal, respect it 😭

It returns zero on success, negative values on failure. periodt. 🔥

---

👑 SEE ALSO 👑

Kernel file ./net/ipv4/cipso_ipv4.c, plus the whole friend group 🫶:

• cipso_v4_cache_entry_free(9)
• cipso_v4_map_cache_hash(9)
• cipso_v4_cache_init(9)
• cipso_v4_cache_invalidate(9)
• cipso_v4_cache_check(9)
• cipso_v4_cache_add(9)
• cipso_v4_doi_search(9)
• cipso_v4_doi_add(9)
• cipso_v4_doi_free(9)
• cipso_v4_doi_free_rcu(9)
• cipso_v4_doi_remove(9)
• cipso_v4_doi_getdef(9)
• cipso_v4_doi_putdef(9)
• cipso_v4_map_lvl_valid(9)
• cipso_v4_map_lvl_hton(9)
• cipso_v4_map_lvl_ntoh(9)
• cipso_v4_map_cat_rbm_valid(9)
• cipso_v4_map_cat_rbm_hton(9)
• cipso_v4_map_cat_rbm_ntoh(9)
• cipso_v4_map_cat_enum_valid(9)
• cipso_v4_map_cat_enum_hton(9)
• cipso_v4_map_cat_enum_ntoh(9)
• cipso_v4_map_cat_rng_valid(9)
• cipso_v4_map_cat_rng_hton(9)
• cipso_v4_map_cat_rng_ntoh(9)
• cipso_v4_gentag_hdr(9)
• cipso_v4_gentag_rbm(9)
• cipso_v4_parsetag_rbm(9)
• cipso_v4_gentag_enum(9)
• cipso_v4_parsetag_enum(9)
• cipso_v4_gentag_rng(9)
• cipso_v4_parsetag_rng(9)
• cipso_v4_gentag_loc(9)
• cipso_v4_parsetag_loc(9)
• cipso_v4_optptr(9)
• cipso_v4_validate(9)
• cipso_v4_error(9)
• cipso_v4_genopt(9)
• cipso_v4_sock_setattr(9)
• cipso_v4_req_setattr(9)
• cipso_v4_delopt(9)
• cipso_v4_sock_delattr(9)
• cipso_v4_req_delattr(9)
• cipso_v4_getattr(9)
• cipso_v4_sock_getattr(9)
• cipso_v4_skbuff_setattr(9)
• cipso_v4_skbuff_delattr(9)
• cipso_v4_init(9)

---

and that's the whole page bestie, go read some kernel source, ily 💖

shoutout to ./net/ipv4 and the October 2026 release for making this little doc drop possible 🎀✨