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authorraja-ashok <rashok.svks@gmail.com>2019-07-06 21:57:53 +0530
committerMatt Caswell <matt@openssl.org>2019-08-09 09:36:54 +0100
commitc8edb04fac976e653ee441fae66842b4a33ad5b6 (patch)
treead8378e905b2ade22db9d908ddf847f93313e144 /crypto/bio/bss_dgram.c
parent861335001b99cfd665030c50ad37a663536a5c0f (diff)
Restrict usage of bio_dgram_sctp_data only to DGRAM SCTP methods
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9216)
Diffstat (limited to 'crypto/bio/bss_dgram.c')
-rw-r--r--crypto/bio/bss_dgram.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/crypto/bio/bss_dgram.c b/crypto/bio/bss_dgram.c
index 941429a398..c52b0f047f 100644
--- a/crypto/bio/bss_dgram.c
+++ b/crypto/bio/bss_dgram.c
@@ -53,6 +53,8 @@ static int dgram_sctp_puts(BIO *h, const char *str);
static long dgram_sctp_ctrl(BIO *h, int cmd, long arg1, void *arg2);
static int dgram_sctp_new(BIO *h);
static int dgram_sctp_free(BIO *data);
+static int dgram_sctp_wait_for_dry(BIO *b);
+static int dgram_sctp_msg_waiting(BIO *b);
# ifdef SCTP_AUTHENTICATION_EVENT
static void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification
*snp);
@@ -124,7 +126,7 @@ typedef struct bio_dgram_sctp_data_st {
struct bio_dgram_sctp_sndinfo sndinfo;
struct bio_dgram_sctp_rcvinfo rcvinfo;
struct bio_dgram_sctp_prinfo prinfo;
- void (*handle_notifications) (BIO *bio, void *context, void *buf);
+ BIO_dgram_sctp_notification_handler_fn handle_notifications;
void *notification_context;
int in_handshake;
int ccs_rcvd;
@@ -1562,6 +1564,10 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
else
data->save_shutdown = 0;
break;
+ case BIO_CTRL_DGRAM_SCTP_WAIT_FOR_DRY:
+ return dgram_sctp_wait_for_dry(b);
+ case BIO_CTRL_DGRAM_SCTP_MSG_WAITING:
+ return dgram_sctp_msg_waiting(b);
default:
/*
@@ -1574,11 +1580,8 @@ static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
}
int BIO_dgram_sctp_notification_cb(BIO *b,
- void (*handle_notifications) (BIO *bio,
- void
- *context,
- void *buf),
- void *context)
+ BIO_dgram_sctp_notification_handler_fn handle_notifications,
+ void *context)
{
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr;
@@ -1606,6 +1609,11 @@ int BIO_dgram_sctp_notification_cb(BIO *b,
*/
int BIO_dgram_sctp_wait_for_dry(BIO *b)
{
+ return (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SCTP_WAIT_FOR_DRY, 0, NULL);
+}
+
+static int dgram_sctp_wait_for_dry(BIO *b)
+{
int is_dry = 0;
int sockflags = 0;
int n, ret;
@@ -1764,6 +1772,11 @@ int BIO_dgram_sctp_wait_for_dry(BIO *b)
int BIO_dgram_sctp_msg_waiting(BIO *b)
{
+ return (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SCTP_MSG_WAITING, 0, NULL);
+}
+
+static int dgram_sctp_msg_waiting(BIO *b)
+{
int n, sockflags;
union sctp_notification snp;
struct msghdr msg;