diff options
| -rw-r--r-- | security/apparmor/context.c | 38 | ||||
| -rw-r--r-- | security/apparmor/domain.c | 6 | ||||
| -rw-r--r-- | security/apparmor/include/context.h | 19 | ||||
| -rw-r--r-- | security/apparmor/lsm.c | 26 | ||||
| -rw-r--r-- | security/apparmor/policy.c | 2 |
5 files changed, 45 insertions, 46 deletions
diff --git a/security/apparmor/context.c b/security/apparmor/context.c index c95f1ac6190b..89c03053303e 100644 --- a/security/apparmor/context.c +++ b/security/apparmor/context.c @@ -13,11 +13,11 @@ * License. * * - * AppArmor sets confinement on every task, via the the aa_task_ctx and - * the aa_task_ctx.label, both of which are required and are not allowed - * to be NULL. The aa_task_ctx is not reference counted and is unique + * AppArmor sets confinement on every task, via the the aa_cred_ctx and + * the aa_cred_ctx.label, both of which are required and are not allowed + * to be NULL. The aa_cred_ctx is not reference counted and is unique * to each cred (which is reference count). The label pointed to by - * the task_ctx is reference counted. + * the cred_ctx is reference counted. * * TODO * If a task uses change_hat it currently does not return to the old @@ -30,21 +30,21 @@ #include "include/policy.h" /** - * aa_alloc_task_context - allocate a new task_ctx + * aa_alloc_cred_ctx - allocate a new cred_ctx * @flags: gfp flags for allocation * * Returns: allocated buffer or NULL on failure */ -struct aa_task_ctx *aa_alloc_task_context(gfp_t flags) +struct aa_cred_ctx *aa_alloc_cred_ctx(gfp_t flags) { - return kzalloc(sizeof(struct aa_task_ctx), flags); + return kzalloc(sizeof(struct aa_cred_ctx), flags); } /** - * aa_free_task_context - free a task_ctx - * @ctx: task_ctx to free (MAYBE NULL) + * aa_free_cred_ctx - free a cred_ctx + * @ctx: cred_ctx to free (MAYBE NULL) */ -void aa_free_task_context(struct aa_task_ctx *ctx) +void aa_free_cred_ctx(struct aa_cred_ctx *ctx) { if (ctx) { aa_put_label(ctx->label); @@ -56,11 +56,11 @@ void aa_free_task_context(struct aa_task_ctx *ctx) } /** - * aa_dup_task_context - duplicate a task context, incrementing reference counts + * aa_dup_cred_ctx - duplicate a task context, incrementing reference counts * @new: a blank task context (NOT NULL) * @old: the task context to copy (NOT NULL) */ -void aa_dup_task_context(struct aa_task_ctx *new, const struct aa_task_ctx *old) +void aa_dup_cred_ctx(struct aa_cred_ctx *new, const struct aa_cred_ctx *old) { *new = *old; aa_get_label(new->label); @@ -93,7 +93,7 @@ struct aa_label *aa_get_task_label(struct task_struct *task) */ int aa_replace_current_label(struct aa_label *label) { - struct aa_task_ctx *ctx = current_ctx(); + struct aa_cred_ctx *ctx = current_cred_ctx(); struct cred *new; AA_BUG(!label); @@ -112,7 +112,7 @@ int aa_replace_current_label(struct aa_label *label) /* if switching to unconfined or a different label namespace * clear out context state */ - aa_clear_task_ctx_trans(ctx); + aa_clear_cred_ctx_trans(ctx); /* * be careful switching ctx->profile, when racing replacement it @@ -136,14 +136,14 @@ int aa_replace_current_label(struct aa_label *label) */ int aa_set_current_onexec(struct aa_label *label, bool stack) { - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; struct cred *new = prepare_creds(); if (!new) return -ENOMEM; ctx = cred_ctx(new); aa_get_label(label); - aa_clear_task_ctx_trans(ctx); + aa_clear_cred_ctx_trans(ctx); ctx->onexec = label; ctx->token = stack; @@ -163,7 +163,7 @@ int aa_set_current_onexec(struct aa_label *label, bool stack) */ int aa_set_current_hat(struct aa_label *label, u64 token) { - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; struct cred *new = prepare_creds(); if (!new) return -ENOMEM; @@ -201,7 +201,7 @@ int aa_set_current_hat(struct aa_label *label, u64 token) */ int aa_restore_previous_label(u64 token) { - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; struct cred *new = prepare_creds(); if (!new) return -ENOMEM; @@ -221,7 +221,7 @@ int aa_restore_previous_label(u64 token) ctx->label = aa_get_newest_label(ctx->previous); AA_BUG(!ctx->label); /* clear exec && prev information when restoring to previous context */ - aa_clear_task_ctx_trans(ctx); + aa_clear_cred_ctx_trans(ctx); commit_creds(new); return 0; diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c index 6a54d2ffa840..90967de96be0 100644 --- a/security/apparmor/domain.c +++ b/security/apparmor/domain.c @@ -779,7 +779,7 @@ static struct aa_label *handle_onexec(struct aa_label *label, */ int apparmor_bprm_set_creds(struct linux_binprm *bprm) { - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; struct aa_label *label, *new = NULL; struct aa_profile *profile; char *buffer = NULL; @@ -859,7 +859,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm) done: /* clear out temporary/transitional state from the context */ - aa_clear_task_ctx_trans(ctx); + aa_clear_cred_ctx_trans(ctx); aa_put_label(label); put_buffers(buffer); @@ -1049,7 +1049,7 @@ build: int aa_change_hat(const char *hats[], int count, u64 token, int flags) { const struct cred *cred; - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; struct aa_label *label, *previous, *new = NULL, *target = NULL; struct aa_profile *profile; struct aa_perms perms = {}; diff --git a/security/apparmor/include/context.h b/security/apparmor/include/context.h index 6ae07e9aaa17..0622fcf2a695 100644 --- a/security/apparmor/include/context.h +++ b/security/apparmor/include/context.h @@ -23,10 +23,10 @@ #include "policy_ns.h" #define cred_ctx(X) ((X)->security) -#define current_ctx() cred_ctx(current_cred()) +#define current_cred_ctx() cred_ctx(current_cred()) /** - * struct aa_task_ctx - primary label for confined tasks + * struct aa_cred_ctx - primary label for confined tasks * @label: the current label (NOT NULL) * @exec: label to transition to on next exec (MAYBE NULL) * @previous: label the task may return to (MAYBE NULL) @@ -37,17 +37,16 @@ * * TODO: make so a task can be confined by a stack of contexts */ -struct aa_task_ctx { +struct aa_cred_ctx { struct aa_label *label; struct aa_label *onexec; struct aa_label *previous; u64 token; }; -struct aa_task_ctx *aa_alloc_task_context(gfp_t flags); -void aa_free_task_context(struct aa_task_ctx *ctx); -void aa_dup_task_context(struct aa_task_ctx *new, - const struct aa_task_ctx *old); +struct aa_cred_ctx *aa_alloc_cred_ctx(gfp_t flags); +void aa_free_cred_ctx(struct aa_cred_ctx *ctx); +void aa_dup_cred_ctx(struct aa_cred_ctx *new, const struct aa_cred_ctx *old); int aa_replace_current_label(struct aa_label *label); int aa_set_current_onexec(struct aa_label *label, bool stack); int aa_set_current_hat(struct aa_label *label, u64 token); @@ -65,7 +64,7 @@ struct aa_label *aa_get_task_label(struct task_struct *task); */ static inline struct aa_label *aa_cred_raw_label(const struct cred *cred) { - struct aa_task_ctx *ctx = cred_ctx(cred); + struct aa_cred_ctx *ctx = cred_ctx(cred); AA_BUG(!ctx || !ctx->label); return ctx->label; @@ -214,10 +213,10 @@ static inline struct aa_ns *aa_get_current_ns(void) } /** - * aa_clear_task_ctx_trans - clear transition tracking info from the ctx + * aa_clear_cred_ctx_trans - clear transition tracking info from the ctx * @ctx: task context to clear (NOT NULL) */ -static inline void aa_clear_task_ctx_trans(struct aa_task_ctx *ctx) +static inline void aa_clear_cred_ctx_trans(struct aa_cred_ctx *ctx) { aa_put_label(ctx->previous); aa_put_label(ctx->onexec); diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index 9a65eeaf7dfa..0624eb2081f3 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -51,11 +51,11 @@ DEFINE_PER_CPU(struct aa_buffers, aa_buffers); */ /* - * free the associated aa_task_ctx and put its labels + * free the associated aa_cred_ctx and put its labels */ static void apparmor_cred_free(struct cred *cred) { - aa_free_task_context(cred_ctx(cred)); + aa_free_cred_ctx(cred_ctx(cred)); cred_ctx(cred) = NULL; } @@ -65,7 +65,7 @@ static void apparmor_cred_free(struct cred *cred) static int apparmor_cred_alloc_blank(struct cred *cred, gfp_t gfp) { /* freed by apparmor_cred_free */ - struct aa_task_ctx *ctx = aa_alloc_task_context(gfp); + struct aa_cred_ctx *ctx = aa_alloc_cred_ctx(gfp); if (!ctx) return -ENOMEM; @@ -75,18 +75,18 @@ static int apparmor_cred_alloc_blank(struct cred *cred, gfp_t gfp) } /* - * prepare new aa_task_ctx for modification by prepare_cred block + * prepare new aa_cred_ctx for modification by prepare_cred block */ static int apparmor_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp) { /* freed by apparmor_cred_free */ - struct aa_task_ctx *ctx = aa_alloc_task_context(gfp); + struct aa_cred_ctx *ctx = aa_alloc_cred_ctx(gfp); if (!ctx) return -ENOMEM; - aa_dup_task_context(ctx, cred_ctx(old)); + aa_dup_cred_ctx(ctx, cred_ctx(old)); cred_ctx(new) = ctx; return 0; } @@ -96,10 +96,10 @@ static int apparmor_cred_prepare(struct cred *new, const struct cred *old, */ static void apparmor_cred_transfer(struct cred *new, const struct cred *old) { - const struct aa_task_ctx *old_ctx = cred_ctx(old); - struct aa_task_ctx *new_ctx = cred_ctx(new); + const struct aa_cred_ctx *old_ctx = cred_ctx(old); + struct aa_cred_ctx *new_ctx = cred_ctx(new); - aa_dup_task_context(new_ctx, old_ctx); + aa_dup_cred_ctx(new_ctx, old_ctx); } static int apparmor_ptrace_access_check(struct task_struct *child, @@ -577,7 +577,7 @@ static int apparmor_getprocattr(struct task_struct *task, char *name, int error = -ENOENT; /* released below */ const struct cred *cred = get_task_cred(task); - struct aa_task_ctx *ctx = cred_ctx(cred); + struct aa_cred_ctx *ctx = cred_ctx(cred); struct aa_label *label = NULL; if (strcmp(name, "current") == 0) @@ -678,7 +678,7 @@ fail: static void apparmor_bprm_committing_creds(struct linux_binprm *bprm) { struct aa_label *label = aa_current_raw_label(); - struct aa_task_ctx *new_ctx = cred_ctx(bprm->cred); + struct aa_cred_ctx *new_ctx = cred_ctx(bprm->cred); /* bail out if unconfined or not changing profile */ if ((new_ctx->label->proxy == label->proxy) || @@ -1024,9 +1024,9 @@ static int param_set_mode(const char *val, const struct kernel_param *kp) static int __init set_init_ctx(void) { struct cred *cred = (struct cred *)current->real_cred; - struct aa_task_ctx *ctx; + struct aa_cred_ctx *ctx; - ctx = aa_alloc_task_context(GFP_KERNEL); + ctx = aa_alloc_cred_ctx(GFP_KERNEL); if (!ctx) return -ENOMEM; diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index b0b58848c248..c505d517fa3c 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -845,7 +845,7 @@ static struct aa_profile *update_to_newest_parent(struct aa_profile *new) * @udata: serialized data stream (NOT NULL) * * unpack and replace a profile on the profile list and uses of that profile - * by any aa_task_ctx. If the profile does not exist on the profile list + * by any aa_cred_ctx. If the profile does not exist on the profile list * it is added. * * Returns: size of data consumed else error code on failure. |