Re: [PATCH 1/1] libsepol/cil: create user and role caches when building binary policy

[Gary Tierney <gary.tierney@gmx.com>]

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On Mon, Oct 03, 2016 at 11:46:19AM +0100, Gary Tierney wrote:
> Pre-expands the role and user caches used in context validation when
> conerting a cildb to a binary policydb.  This is currently only done
> when loading a binary policy and prevents context validation from
> working correctly with a newly built policy (i.e., when semanage builds
> a new policy and then runs genhomedircon).
> 
> Also adds declarations for the hashtable mapping functions used:
> policydb_role_cache and policydb_user_cache().
> 
> Signed-off-by: Gary Tierney <gary.tierney@gmx.com>
> ---
>  libsepol/cil/src/cil_binary.c              | 7 +++++++
>  libsepol/include/sepol/policydb/policydb.h | 8 ++++++++
>  2 files changed, 15 insertions(+)
> 
> diff --git a/libsepol/cil/src/cil_binary.c b/libsepol/cil/src/cil_binary.c
> index cc73648..200101e 100644
> --- a/libsepol/cil/src/cil_binary.c
> +++ b/libsepol/cil/src/cil_binary.c
> @@ -4794,6 +4794,13 @@ int cil_binary_create_allocated_pdb(const struct cil_db *db, sepol_policydb_t *p
>  
>  	}
>  
> +	/* This pre-expands the roles and users for context validity checking */
> +	if (hashtab_map(pdb->p_roles.table, policydb_role_cache, pdb))
> +		return -1;
> +
> +	if (hashtab_map(pdb->p_users.table, policydb_user_cache, pdb))
> +		return -1;
> +
>  	rc = SEPOL_OK;
>  
>  exit:
> diff --git a/libsepol/include/sepol/policydb/policydb.h b/libsepol/include/sepol/policydb/policydb.h
> index 26cec13..d99fcf4 100644
> --- a/libsepol/include/sepol/policydb/policydb.h
> +++ b/libsepol/include/sepol/policydb/policydb.h
> @@ -608,6 +608,14 @@ extern int policydb_index_bools(policydb_t * p);
>  extern int policydb_index_others(sepol_handle_t * handle, policydb_t * p,
>  				 unsigned int verbose);
>  
> +extern int policydb_role_cache(hashtab_key_t key,
> +			       hashtab_datum_t datum,
> +			       void *arg);
> +
> +extern int policydb_user_cache(hashtab_key_t key,
> +			       hashtab_datum_t datum,
> +			       void *arg);
> +
>  extern int policydb_reindex_users(policydb_t * p);
>  
>  extern void policydb_destroy(policydb_t * p);
> -- 
> 2.4.11
> 
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Ah, that return should be a goto.  Sending a v2.

-- 
Gary Tierney

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