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sunrpc: Const-ify struct sv_serv_ops

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Close an attack vector by moving the arrays of per-server methods to
read-only memory.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever 2017-08-01 12:00:06 -04:00 • committed by J. Bruce Fields
parent c1df609d9d
commit afea5657c2
5 changed files with 13 additions and 13 deletions
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6
include/linux/sunrpc/svc.h
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@ -99,7 +99,7 @@ struct svc_serv {
unsigned int sv_nrpools; /* number of thread pools */
struct svc_pool * sv_pools; /* array of thread pools */
struct svc_serv_ops *sv_ops; /* server operations */
const struct svc_serv_ops *sv_ops; /* server operations */
#if defined(CONFIG_SUNRPC_BACKCHANNEL)
struct list_head sv_cb_list; /* queue for callback requests
* that arrive over the same
@ -465,7 +465,7 @@ int svc_rpcb_setup(struct svc_serv *serv, struct net *net);
void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net);
int svc_bind(struct svc_serv *serv, struct net *net);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
struct svc_serv_ops *);
const struct svc_serv_ops *);
struct svc_rqst *svc_rqst_alloc(struct svc_serv *serv,
struct svc_pool *pool, int node);
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
@ -475,7 +475,7 @@ void svc_exit_thread(struct svc_rqst *);
unsigned int svc_pool_map_get(void);
void svc_pool_map_put(void);
struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
struct svc_serv_ops *);
const struct svc_serv_ops *);
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
int svc_set_num_threads_sync(struct svc_serv *, struct svc_pool *, int);
int svc_pool_stats_open(struct svc_serv *serv, struct file *file);