linux-morello July 2024

linux-morello@op-lists.linaro.org

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[PATCH] ebtables: Add ifdefs for PCuABI.

by Joshua Lant

Check for PCuABI and modify function declarations accordingly, changing user** into * __capability * __capability. Signed-off-by: Joshua Lant joshualant(a)gmail.com --- net/bridge/netfilter/ebtables.c | 39 +++++++++++++++++++++++++++------ 1 file changed, 32 insertions(+), 7 deletions(-) diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 99d82676f780..b9f9301f2699 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -1633,8 +1633,14 @@ static int ebt_compat_match_offset(const struct xt_match *match, return xt_compat_match_offset(match); } -static int compat_match_to_user(struct ebt_entry_match *m, void __user **dstptr, +#ifdef CONFIG_CHERI_PURECAP_UABI +static int compat_match_to_user(struct ebt_entry_match *m, + void *__capability *__capability dstptr, unsigned int *size) +#else +static int compat_match_to_user(struct ebt_entry_match *m, void __user *__user *dstptr, + unsigned int *size) +#endif { const struct xt_match *match = m->u.match; struct compat_ebt_entry_mwt __user *cm = *dstptr; @@ -1664,9 +1670,15 @@ static int compat_match_to_user(struct ebt_entry_match *m, void __user **dstptr, return 0; } +#ifdef CONFIG_CHERI_PURECAP_UABI +static int compat_target_to_user(struct ebt_entry_target *t, + void *__capability *__capability dstptr, + unsigned int *size) +#else static int compat_target_to_user(struct ebt_entry_target *t, - void __user **dstptr, - unsigned int *size) + void __user *__user *dstptr, + unsigned int *size) +#endif { const struct xt_target *target = t->u.target; struct compat_ebt_entry_mwt __user *cm = *dstptr; @@ -1696,16 +1708,29 @@ static int compat_target_to_user(struct ebt_entry_target *t, return 0; } + +#ifdef CONFIG_CHERI_PURECAP_UABI +static int compat_watcher_to_user(struct ebt_entry_watcher *w, + void *__capability *__capability dstptr, + unsigned int *size) +#else static int compat_watcher_to_user(struct ebt_entry_watcher *w, - void __user **dstptr, - unsigned int *size) + void __user *__user *dstptr, + unsigned int *size) +#endif { return compat_target_to_user((struct ebt_entry_target *)w, dstptr, size); } -static int compat_copy_entry_to_user(struct ebt_entry *e, void __user **dstptr, - unsigned int *size) +#ifdef CONFIG_CHERI_PURECAP_UABI +static int compat_copy_entry_to_user(struct ebt_entry *e, + void *__capability *__capability dstptr, + unsigned int *size) +#else +static int compat_copy_entry_to_user(struct ebt_entry *e, void __user *__user *dstptr, + unsigned int *size) +#endif { struct ebt_entry_target *t; struct ebt_entry __user *ce; -- 2.25.1

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linux-morello July 2024