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[DCCP] feat: Pass dccp_minisock ptr where only the minisock is used

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This is in preparation for having a dccp_minisock embedded into
dccp_request_sock so that feature negotiation can be done prior to
creating the full blown dccp_sock.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-03-20 22:51:53 -08:00 committed by David S. Miller
parent a4bf390242
commit 8ca0d17bd7
3 changed files with 24 additions and 24 deletions
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30
net/dccp/feat.c
View File

@ -19,10 +19,9 @@
#define DCCP_FEAT_SP_NOAGREE (-123)
int dccp_feat_change(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len,
gfp_t gfp)
int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
u8 *val, u8 len, gfp_t gfp)
{
struct dccp_minisock *dmsk = dccp_msk(sk);
struct dccp_opt_pend *opt;
dccp_pr_debug("feat change type=%d feat=%d\n", type, feature);
@ -307,9 +306,9 @@ static int dccp_feat_nn(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
return 0;
}
static void dccp_feat_empty_confirm(struct sock *sk, u8 type, u8 feature)
static void dccp_feat_empty_confirm(struct dccp_minisock *dmsk,
u8 type, u8 feature)
{
struct dccp_minisock *dmsk = dccp_msk(sk);
/* XXX check if other confirms for that are queued and recycle slot */
struct dccp_opt_pend *opt = kzalloc(sizeof(*opt), GFP_ATOMIC);
@ -388,7 +387,7 @@ int dccp_feat_change_recv(struct sock *sk, u8 type, u8 feature, u8 *val, u8 len)
* mandatory
*/
if (rc != DCCP_FEAT_SP_NOAGREE)
dccp_feat_empty_confirm(sk, type, feature);
dccp_feat_empty_confirm(dccp_msk(sk), type, feature);
}
/* generate the confirm [if required] */
@ -456,9 +455,8 @@ int dccp_feat_confirm_recv(struct sock *sk, u8 type, u8 feature,
EXPORT_SYMBOL_GPL(dccp_feat_confirm_recv);
void dccp_feat_clean(struct sock *sk)
void dccp_feat_clean(struct dccp_minisock *dmsk)
{
struct dccp_minisock *dmsk = dccp_msk(sk);
struct dccp_opt_pend *opt, *next;
list_for_each_entry_safe(opt, next, &dmsk->dccpms_pending,
@ -537,49 +535,49 @@ out:
return rc;
out_clean:
dccp_feat_clean(newsk);
dccp_feat_clean(newdmsk);
rc = -ENOMEM;
goto out;
}
EXPORT_SYMBOL_GPL(dccp_feat_clone);
static int __dccp_feat_init(struct sock *sk, u8 type, u8 feat, u8 *val, u8 len)
static int __dccp_feat_init(struct dccp_minisock *dmsk, u8 type, u8 feat,
u8 *val, u8 len)
{
int rc = -ENOMEM;
u8 *copy = kmalloc(len, GFP_KERNEL);
if (copy != NULL) {
memcpy(copy, val, len);
rc = dccp_feat_change(sk, type, feat, copy, len, GFP_KERNEL);
rc = dccp_feat_change(dmsk, type, feat, copy, len, GFP_KERNEL);
if (rc)
kfree(copy);
}
return rc;
}
int dccp_feat_init(struct sock *sk)
int dccp_feat_init(struct dccp_minisock *dmsk)
{
struct dccp_minisock *dmsk = dccp_msk(sk);
int rc;
INIT_LIST_HEAD(&dmsk->dccpms_pending);
INIT_LIST_HEAD(&dmsk->dccpms_conf);
/* CCID L */
rc = __dccp_feat_init(sk, DCCPO_CHANGE_L, DCCPF_CCID,
rc = __dccp_feat_init(dmsk, DCCPO_CHANGE_L, DCCPF_CCID,
&dmsk->dccpms_tx_ccid, 1);
if (rc)
goto out;
/* CCID R */
rc = __dccp_feat_init(sk, DCCPO_CHANGE_R, DCCPF_CCID,
rc = __dccp_feat_init(dmsk, DCCPO_CHANGE_R, DCCPF_CCID,
&dmsk->dccpms_rx_ccid, 1);
if (rc)
goto out;
/* Ack ratio */
rc = __dccp_feat_init(sk, DCCPO_CHANGE_L, DCCPF_ACK_RATIO,
rc = __dccp_feat_init(dmsk, DCCPO_CHANGE_L, DCCPF_ACK_RATIO,
&dmsk->dccpms_ack_ratio, 1);
out:
return rc;

7
net/dccp/feat.h
View File

@ -14,15 +14,16 @@
#include <linux/types.h>
struct sock;
struct dccp_minisock;
extern int dccp_feat_change(struct sock *sk, u8 type, u8 feature,
extern int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
u8 *val, u8 len, gfp_t gfp);
extern int dccp_feat_change_recv(struct sock *sk, u8 type, u8 feature,
u8 *val, u8 len);
extern int dccp_feat_confirm_recv(struct sock *sk, u8 type, u8 feature,
u8 *val, u8 len);
extern void dccp_feat_clean(struct sock *sk);
extern void dccp_feat_clean(struct dccp_minisock *dmsk);
extern int dccp_feat_clone(struct sock *oldsk, struct sock *newsk);
extern int dccp_feat_init(struct sock *sk);
extern int dccp_feat_init(struct dccp_minisock *dmsk);
#endif /* _DCCP_FEAT_H */

11
net/dccp/proto.c
View File

@ -180,7 +180,7 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
* setsockopt(CCIDs-I-want/accept). -acme
*/
if (likely(ctl_sock_initialized)) {
int rc = dccp_feat_init(sk);
int rc = dccp_feat_init(dmsk);
if (rc)
return rc;
@ -229,6 +229,7 @@ EXPORT_SYMBOL_GPL(dccp_init_sock);
int dccp_destroy_sock(struct sock *sk)
{
struct dccp_sock *dp = dccp_sk(sk);
struct dccp_minisock *dmsk = dccp_msk(sk);
/*
* DCCP doesn't use sk_write_queue, just sk_send_head
@ -246,7 +247,7 @@ int dccp_destroy_sock(struct sock *sk)
kfree(dp->dccps_service_list);
dp->dccps_service_list = NULL;
if (dccp_msk(sk)->dccpms_send_ack_vector) {
if (dmsk->dccpms_send_ack_vector) {
dccp_ackvec_free(dp->dccps_hc_rx_ackvec);
dp->dccps_hc_rx_ackvec = NULL;
}
@ -255,7 +256,7 @@ int dccp_destroy_sock(struct sock *sk)
dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
/* clean up feature negotiation state */
dccp_feat_clean(sk);
dccp_feat_clean(dmsk);
return 0;
}
@ -441,8 +442,8 @@ static int dccp_setsockopt_change(struct sock *sk, int type,
goto out_free_val;
}
rc = dccp_feat_change(sk, type, opt.dccpsf_feat, val, opt.dccpsf_len,
GFP_KERNEL);
rc = dccp_feat_change(dccp_msk(sk), type, opt.dccpsf_feat,
val, opt.dccpsf_len, GFP_KERNEL);
if (rc)
goto out_free_val;