From: Thomas Graf <tgraf@suug.ch>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, Thomas Graf <tgraf@suug.ch>
Subject: [PATCH 11/16] [XFRM] netlink: Enhance indexing of the attribute array
Date: Wed, 22 Aug 2007 16:55:49 +0200 [thread overview]
Message-ID: <20070822145631.348072934@lsx.localdomain> (raw)
In-Reply-To: 20070822145538.861270927@lsx.localdomain
[-- Attachment #1: xfrm_attr_index --]
[-- Type: text/plain, Size: 7434 bytes --]
nlmsg_parse() puts attributes at array[type] so the indexing
method can be simpilfied by removing the obscuring "- 1".
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Index: net-2.6.24/net/xfrm/xfrm_user.c
===================================================================
--- net-2.6.24.orig/net/xfrm/xfrm_user.c 2007-08-21 17:31:56.000000000 +0200
+++ net-2.6.24/net/xfrm/xfrm_user.c 2007-08-21 17:34:10.000000000 +0200
@@ -40,7 +40,7 @@ static inline int alg_len(struct xfrm_al
static int verify_one_alg(struct rtattr **xfrma, enum xfrm_attr_type_t type)
{
- struct rtattr *rt = xfrma[type - 1];
+ struct rtattr *rt = xfrma[type];
struct xfrm_algo *algp;
if (!rt)
@@ -78,7 +78,7 @@ static int verify_one_alg(struct rtattr
static void verify_one_addr(struct rtattr **xfrma, enum xfrm_attr_type_t type,
xfrm_address_t **addrp)
{
- struct rtattr *rt = xfrma[type - 1];
+ struct rtattr *rt = xfrma[type];
if (rt && addrp)
*addrp = RTA_DATA(rt);
@@ -86,7 +86,7 @@ static void verify_one_addr(struct rtatt
static inline int verify_sec_ctx_len(struct rtattr **xfrma)
{
- struct rtattr *rt = xfrma[XFRMA_SEC_CTX - 1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX];
struct xfrm_user_sec_ctx *uctx;
if (!rt)
@@ -125,35 +125,35 @@ static int verify_newsa_info(struct xfrm
err = -EINVAL;
switch (p->id.proto) {
case IPPROTO_AH:
- if (!xfrma[XFRMA_ALG_AUTH-1] ||
- xfrma[XFRMA_ALG_CRYPT-1] ||
- xfrma[XFRMA_ALG_COMP-1])
+ if (!xfrma[XFRMA_ALG_AUTH] ||
+ xfrma[XFRMA_ALG_CRYPT] ||
+ xfrma[XFRMA_ALG_COMP])
goto out;
break;
case IPPROTO_ESP:
- if ((!xfrma[XFRMA_ALG_AUTH-1] &&
- !xfrma[XFRMA_ALG_CRYPT-1]) ||
- xfrma[XFRMA_ALG_COMP-1])
+ if ((!xfrma[XFRMA_ALG_AUTH] &&
+ !xfrma[XFRMA_ALG_CRYPT]) ||
+ xfrma[XFRMA_ALG_COMP])
goto out;
break;
case IPPROTO_COMP:
- if (!xfrma[XFRMA_ALG_COMP-1] ||
- xfrma[XFRMA_ALG_AUTH-1] ||
- xfrma[XFRMA_ALG_CRYPT-1])
+ if (!xfrma[XFRMA_ALG_COMP] ||
+ xfrma[XFRMA_ALG_AUTH] ||
+ xfrma[XFRMA_ALG_CRYPT])
goto out;
break;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case IPPROTO_DSTOPTS:
case IPPROTO_ROUTING:
- if (xfrma[XFRMA_ALG_COMP-1] ||
- xfrma[XFRMA_ALG_AUTH-1] ||
- xfrma[XFRMA_ALG_CRYPT-1] ||
- xfrma[XFRMA_ENCAP-1] ||
- xfrma[XFRMA_SEC_CTX-1] ||
- !xfrma[XFRMA_COADDR-1])
+ if (xfrma[XFRMA_ALG_COMP] ||
+ xfrma[XFRMA_ALG_AUTH] ||
+ xfrma[XFRMA_ALG_CRYPT] ||
+ xfrma[XFRMA_ENCAP] ||
+ xfrma[XFRMA_SEC_CTX] ||
+ !xfrma[XFRMA_COADDR])
goto out;
break;
#endif
@@ -300,10 +300,10 @@ static void copy_from_user_state(struct
*/
static void xfrm_update_ae_params(struct xfrm_state *x, struct rtattr **xfrma)
{
- struct rtattr *rp = xfrma[XFRMA_REPLAY_VAL-1];
- struct rtattr *lt = xfrma[XFRMA_LTIME_VAL-1];
- struct rtattr *et = xfrma[XFRMA_ETIMER_THRESH-1];
- struct rtattr *rt = xfrma[XFRMA_REPLAY_THRESH-1];
+ struct rtattr *rp = xfrma[XFRMA_REPLAY_VAL];
+ struct rtattr *lt = xfrma[XFRMA_LTIME_VAL];
+ struct rtattr *et = xfrma[XFRMA_ETIMER_THRESH];
+ struct rtattr *rt = xfrma[XFRMA_REPLAY_THRESH];
if (rp) {
struct xfrm_replay_state *replay;
@@ -342,25 +342,25 @@ static struct xfrm_state *xfrm_state_con
if ((err = attach_one_algo(&x->aalg, &x->props.aalgo,
xfrm_aalg_get_byname,
- xfrma[XFRMA_ALG_AUTH-1])))
+ xfrma[XFRMA_ALG_AUTH])))
goto error;
if ((err = attach_one_algo(&x->ealg, &x->props.ealgo,
xfrm_ealg_get_byname,
- xfrma[XFRMA_ALG_CRYPT-1])))
+ xfrma[XFRMA_ALG_CRYPT])))
goto error;
if ((err = attach_one_algo(&x->calg, &x->props.calgo,
xfrm_calg_get_byname,
- xfrma[XFRMA_ALG_COMP-1])))
+ xfrma[XFRMA_ALG_COMP])))
goto error;
- if ((err = attach_encap_tmpl(&x->encap, xfrma[XFRMA_ENCAP-1])))
+ if ((err = attach_encap_tmpl(&x->encap, xfrma[XFRMA_ENCAP])))
goto error;
- if ((err = attach_one_addr(&x->coaddr, xfrma[XFRMA_COADDR-1])))
+ if ((err = attach_one_addr(&x->coaddr, xfrma[XFRMA_COADDR])))
goto error;
err = xfrm_init_state(x);
if (err)
goto error;
- if ((err = attach_sec_ctx(x, xfrma[XFRMA_SEC_CTX-1])))
+ if ((err = attach_sec_ctx(x, xfrma[XFRMA_SEC_CTX])))
goto error;
x->km.seq = p->seq;
@@ -917,7 +917,7 @@ static int verify_newpolicy_info(struct
static int copy_from_user_sec_ctx(struct xfrm_policy *pol, struct rtattr **xfrma)
{
- struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX];
struct xfrm_user_sec_ctx *uctx;
if (!rt)
@@ -985,7 +985,7 @@ static int validate_tmpl(int nr, struct
static int copy_from_user_tmpl(struct xfrm_policy *pol, struct rtattr **xfrma)
{
- struct rtattr *rt = xfrma[XFRMA_TMPL-1];
+ struct rtattr *rt = xfrma[XFRMA_TMPL];
if (!rt) {
pol->xfrm_nr = 0;
@@ -1005,7 +1005,7 @@ static int copy_from_user_tmpl(struct xf
static int copy_from_user_policy_type(u8 *tp, struct rtattr **xfrma)
{
- struct rtattr *rt = xfrma[XFRMA_POLICY_TYPE-1];
+ struct rtattr *rt = xfrma[XFRMA_POLICY_TYPE];
struct xfrm_userpolicy_type *upt;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
@@ -1294,7 +1294,7 @@ static int xfrm_get_policy(struct sk_buf
if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, delete, &err);
else {
- struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX];
struct xfrm_policy tmp;
err = verify_sec_ctx_len(xfrma);
@@ -1455,8 +1455,8 @@ static int xfrm_new_ae(struct sk_buff *s
struct km_event c;
int err = - EINVAL;
struct xfrm_aevent_id *p = nlmsg_data(nlh);
- struct rtattr *rp = xfrma[XFRMA_REPLAY_VAL-1];
- struct rtattr *lt = xfrma[XFRMA_LTIME_VAL-1];
+ struct rtattr *rp = xfrma[XFRMA_REPLAY_VAL];
+ struct rtattr *lt = xfrma[XFRMA_LTIME_VAL];
if (!lt && !rp)
return err;
@@ -1528,7 +1528,7 @@ static int xfrm_add_pol_expire(struct sk
if (p->index)
xp = xfrm_policy_byid(type, p->dir, p->index, 0, &err);
else {
- struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX];
struct xfrm_policy tmp;
err = verify_sec_ctx_len(xfrma);
@@ -1611,7 +1611,7 @@ static int xfrm_add_acquire(struct sk_bu
struct xfrm_policy *xp;
struct xfrm_user_tmpl *ut;
int i;
- struct rtattr *rt = xfrma[XFRMA_TMPL-1];
+ struct rtattr *rt = xfrma[XFRMA_TMPL];
struct xfrm_user_acquire *ua = nlmsg_data(nlh);
struct xfrm_state *x = xfrm_state_alloc();
@@ -1663,7 +1663,7 @@ static int xfrm_add_acquire(struct sk_bu
static int copy_from_user_migrate(struct xfrm_migrate *ma,
struct rtattr **xfrma, int *num)
{
- struct rtattr *rt = xfrma[XFRMA_MIGRATE-1];
+ struct rtattr *rt = xfrma[XFRMA_MIGRATE];
struct xfrm_user_migrate *um;
int i, num_migrate;
@@ -1700,7 +1700,7 @@ static int xfrm_do_migrate(struct sk_buf
int err;
int n = 0;
- if (xfrma[XFRMA_MIGRATE-1] == NULL)
+ if (xfrma[XFRMA_MIGRATE] == NULL)
return -EINVAL;
err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
@@ -1906,9 +1906,7 @@ static int xfrm_user_rcv_msg(struct sk_b
return netlink_dump_start(xfrm_nl, skb, nlh, link->dump, NULL);
}
- /* FIXME: Temporary hack, nlmsg_parse() starts at xfrma[1], old code
- * expects first attribute at xfrma[0] */
- err = nlmsg_parse(nlh, xfrm_msg_min[type], xfrma-1, XFRMA_MAX,
+ err = nlmsg_parse(nlh, xfrm_msg_min[type], xfrma, XFRMA_MAX,
xfrma_policy);
if (err < 0)
return err;
--
next prev parent reply other threads:[~2007-08-22 15:29 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-22 14:55 [PATCH 00/16] xfrm netlink interface cleanups Thomas Graf
2007-08-22 14:55 ` [PATCH 01/16] [XFRM] netlink: Use nlmsg_put() instead of NLMSG_PUT() Thomas Graf
2007-08-22 19:47 ` David Miller
2007-08-22 14:55 ` [PATCH 02/16] [XFRM] netlink: Use nlmsg_end() and nlmsg_cancel() Thomas Graf
2007-08-22 19:47 ` David Miller
2007-08-22 14:55 ` [PATCH 03/16] [XFRM] netlink: Use nlmsg_data() instead of NLMSG_DATA() Thomas Graf
2007-08-22 19:49 ` David Miller
2007-08-22 14:55 ` [PATCH 04/16] [XFRM] netlink: Use nlmsg_broadcast() and nlmsg_unicast() Thomas Graf
2007-08-22 20:54 ` David Miller
2007-08-22 14:55 ` [PATCH 05/16] [XFRM] netlink: Use nla_put()/NLA_PUT() variantes Thomas Graf
2007-08-22 20:55 ` David Miller
2007-08-22 14:55 ` [PATCH 06/16] [XFRM] netlink: Move algorithm length calculation to its own function Thomas Graf
2007-08-22 20:56 ` David Miller
2007-08-22 14:55 ` [PATCH 07/16] [XFRM] netlink: Clear up some of the CONFIG_XFRM_SUB_POLICY ifdef mess Thomas Graf
2007-08-22 20:57 ` David Miller
2007-08-22 14:55 ` [PATCH 08/16] [XFRM] netlink: Use nlmsg_new() and type-safe size calculation helpers Thomas Graf
2007-08-22 20:57 ` David Miller
2007-08-22 14:55 ` [PATCH 09/16] [XFRM] netlink: Use nlmsg_parse() to parse attributes Thomas Graf
2007-08-22 20:58 ` David Miller
2007-08-22 14:55 ` [PATCH 10/16] [XFRM] netlink: Establish an attribute policy Thomas Graf
2007-08-22 20:59 ` David Miller
2007-08-22 14:55 ` Thomas Graf [this message]
2007-08-22 20:59 ` [PATCH 11/16] [XFRM] netlink: Enhance indexing of the attribute array David Miller
2007-08-22 14:55 ` [PATCH 12/16] [XFRM] netlink: Rename attribyte array from xfrma[] to attrs[] Thomas Graf
2007-08-22 21:01 ` David Miller
2007-08-22 14:55 ` [PATCH 13/16] [XFRM] netlink: Use nlattr instead of rtattr Thomas Graf
2007-08-22 21:01 ` David Miller
2007-08-22 14:55 ` [PATCH 14/16] [XFRM] netlink: Use nla_memcpy() in xfrm_update_ae_params() Thomas Graf
2007-08-22 21:02 ` David Miller
2007-08-22 14:55 ` [PATCH 15/16] [XFRM] netlink: Remove dependency on rtnetlink Thomas Graf
2007-08-22 21:02 ` David Miller
2007-08-22 14:55 ` [PATCH 16/16] [XFRM] netlink: Inline attach_encap_tmpl(), attach_sec_ctx(), and attach_one_addr() Thomas Graf
2007-08-22 21:03 ` David Miller
2007-08-24 10:05 ` [PATCH] [XFRM] : Fix pointer copy size for encap_tmpl and coaddr Masahide NAKAMURA
2007-08-24 10:35 ` Thomas Graf
2007-08-25 6:30 ` David Miller
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