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Move r_epoch and w_epoch from s->d1 to s->rlayer.d

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Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Matt Caswell 2015-02-03 15:14:24 +00:00
parent 40f37188a6
commit 78a39fe735
6 changed files with 31 additions and 28 deletions
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11
ssl/d1_both.c
View File

@ -1110,7 +1110,8 @@ int dtls1_buffer_message(SSL *s, int is_ccs)
frag->msg_header.saved_retransmit_state.write_hash = s->write_hash;
frag->msg_header.saved_retransmit_state.compress = s->compress;
frag->msg_header.saved_retransmit_state.session = s->session;
frag->msg_header.saved_retransmit_state.epoch = s->d1->w_epoch;
frag->msg_header.saved_retransmit_state.epoch =
DTLS_RECORD_LAYER_get_w_epoch(&s->rlayer);
memset(seq64be, 0, sizeof(seq64be));
seq64be[6] =
@ -1184,8 +1185,7 @@ dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
saved_state.write_hash = s->write_hash;
saved_state.compress = s->compress;
saved_state.session = s->session;
saved_state.epoch = s->d1->w_epoch;
saved_state.epoch = s->d1->w_epoch;
saved_state.epoch = DTLS_RECORD_LAYER_get_w_epoch(&s->rlayer);
s->d1->retransmitting = 1;
@ -1194,7 +1194,8 @@ dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
s->write_hash = frag->msg_header.saved_retransmit_state.write_hash;
s->compress = frag->msg_header.saved_retransmit_state.compress;
s->session = frag->msg_header.saved_retransmit_state.session;
s->d1->w_epoch = frag->msg_header.saved_retransmit_state.epoch;
DTLS_RECORD_LAYER_set_w_epoch(&s->rlayer,
frag->msg_header.saved_retransmit_state.epoch);
if (frag->msg_header.saved_retransmit_state.epoch ==
saved_state.epoch - 1) {
@ -1212,7 +1213,7 @@ dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
s->write_hash = saved_state.write_hash;
s->compress = saved_state.compress;
s->session = saved_state.session;
s->d1->w_epoch = saved_state.epoch;
DTLS_RECORD_LAYER_set_w_epoch(&s->rlayer, saved_state.epoch);
if (frag->msg_header.saved_retransmit_state.epoch ==
saved_state.epoch - 1) {

2
ssl/d1_lib.c
View File

@ -138,8 +138,6 @@ int dtls1_new(SSL *s)
return 0;
}
/* d1->handshake_epoch=0; */
d1->unprocessed_rcds.q = pqueue_new();
d1->processed_rcds.q = pqueue_new();
d1->buffered_messages = pqueue_new();

20
ssl/record/d1_pkt.c
View File

@ -332,7 +332,7 @@ int dtls1_process_buffered_records(SSL *s)
item = pqueue_peek(s->d1->unprocessed_rcds.q);
if (item) {
/* Check if epoch is current. */
if (s->d1->unprocessed_rcds.epoch != s->d1->r_epoch)
if (s->d1->unprocessed_rcds.epoch != s->rlayer.d->r_epoch)
return (1); /* Nothing to do. */
/* Process all the records. */
@ -350,8 +350,8 @@ int dtls1_process_buffered_records(SSL *s)
* sync epoch numbers once all the unprocessed records have been
* processed
*/
s->d1->processed_rcds.epoch = s->d1->r_epoch;
s->d1->unprocessed_rcds.epoch = s->d1->r_epoch + 1;
s->d1->processed_rcds.epoch = s->rlayer.d->r_epoch;
s->d1->unprocessed_rcds.epoch = s->rlayer.d->r_epoch + 1;
return (1);
}
@ -909,7 +909,7 @@ int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek)
/* this may just be a stale retransmit */
dtls1_get_message_header(rr->data, &msg_hdr);
if (rr->epoch != s->d1->r_epoch) {
if (rr->epoch != s->rlayer.d->r_epoch) {
rr->length = 0;
goto start;
}
@ -1201,7 +1201,7 @@ int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
/* there's only one epoch between handshake and app data */
s2n(s->d1->w_epoch, pseq);
s2n(s->rlayer.d->w_epoch, pseq);
/* XDTLS: ?? */
/*
@ -1301,12 +1301,12 @@ DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
*is_next_epoch = 0;
/* In current epoch, accept HM, CCS, DATA, & ALERT */
if (rr->epoch == s->d1->r_epoch)
if (rr->epoch == s->rlayer.d->r_epoch)
return &s->d1->bitmap;
/* Only HM and ALERT messages can be from the next epoch */
else if (rr->epoch == (unsigned long)(s->d1->r_epoch + 1) &&
(rr->type == SSL3_RT_HANDSHAKE || rr->type == SSL3_RT_ALERT)) {
else if (rr->epoch == (unsigned long)(s->rlayer.d->r_epoch + 1) &&
(rr->type == SSL3_RT_HANDSHAKE || rr->type == SSL3_RT_ALERT)) {
*is_next_epoch = 1;
return &s->d1->next_bitmap;
}
@ -1321,14 +1321,14 @@ void dtls1_reset_seq_numbers(SSL *s, int rw)
if (rw & SSL3_CC_READ) {
seq = s->rlayer.read_sequence;
s->d1->r_epoch++;
s->rlayer.d->r_epoch++;
memcpy(&(s->d1->bitmap), &(s->d1->next_bitmap), sizeof(DTLS1_BITMAP));
memset(&(s->d1->next_bitmap), 0x00, sizeof(DTLS1_BITMAP));
} else {
seq = s->rlayer.write_sequence;
memcpy(s->d1->last_write_sequence, seq,
sizeof(s->rlayer.write_sequence));
s->d1->w_epoch++;
s->rlayer.d->w_epoch++;
}
memset(seq, 0x00, seq_bytes);

12
ssl/record/rec_layer.h
View File

@ -143,8 +143,13 @@ typedef struct dtls1_record_data_st {
} DTLS1_RECORD_DATA;
typedef struct dtls_record_layer_st {
/* Temporary member to be removed by subsequent commits */
int dummy;
/*
* The current data and handshake epoch. This is initially
* undefined, and starts at zero once the initial handshake is
* completed
*/
unsigned short r_epoch;
unsigned short w_epoch;
} DTLS_RECORD_LAYER;
typedef struct record_layer_st {
@ -212,6 +217,8 @@ typedef struct record_layer_st {
#define RECORD_LAYER_add_packet_length(rl, inc) ((rl)->packet_length += (inc))
#define RECORD_LAYER_get_read_sequence(rl) ((rl)->read_sequence)
#define RECORD_LAYER_get_write_sequence(rl) ((rl)->write_sequence)
#define DTLS_RECORD_LAYER_get_w_epoch(rl) ((rl)->d->w_epoch)
#define DTLS_RECORD_LAYER_set_w_epoch(rl, e) ((rl)->d->w_epoch = (e))
void RECORD_LAYER_init(RECORD_LAYER *rl, SSL *s);
void RECORD_LAYER_clear(RECORD_LAYER *rl);
@ -255,6 +262,7 @@ void dtls1_reset_seq_numbers(SSL *s, int rw);
#define RECORD_LAYER_reset_packet_length(rl) ((rl)->packet_length = 0)
#define RECORD_LAYER_get_rstate(rl) ((rl)->rstate)
#define RECORD_LAYER_set_rstate(rl, st) ((rl)->rstate = (st))
#define DTLS_RECORD_LAYER_get_r_epoch(rl) ((rl)->d->r_epoch)
__owur int ssl3_read_n(SSL *s, int n, int max, int extend);
__owur int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,

6
ssl/record/ssl3_record.c
View File

@ -665,7 +665,8 @@ int tls1_enc(SSL *s, int send)
if (SSL_IS_DTLS(s)) {
unsigned char dtlsseq[9], *p = dtlsseq;
s2n(send ? s->d1->w_epoch : s->d1->r_epoch, p);
s2n(send ? DTLS_RECORD_LAYER_get_w_epoch(&s->rlayer) :
DTLS_RECORD_LAYER_get_r_epoch(&s->rlayer), p);
memcpy(p, &seq[2], 6);
memcpy(buf, dtlsseq, 8);
} else {
@ -894,7 +895,8 @@ int tls1_mac(SSL *ssl, unsigned char *md, int send)
if (SSL_IS_DTLS(ssl)) {
unsigned char dtlsseq[8], *p = dtlsseq;
s2n(send ? ssl->d1->w_epoch : ssl->d1->r_epoch, p);
s2n(send ? DTLS_RECORD_LAYER_get_w_epoch(&ssl->rlayer) :
DTLS_RECORD_LAYER_get_r_epoch(&ssl->rlayer), p);
memcpy(p, &seq[2], 6);
memcpy(header, dtlsseq, 8);

8
ssl/ssl_locl.h
View File

@ -1403,13 +1403,7 @@ typedef struct dtls1_state_st {
unsigned char cookie[DTLS1_COOKIE_LENGTH];
unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH];
unsigned int cookie_len;
/*
* The current data and handshake epoch. This is initially
* undefined, and starts at zero once the initial handshake is
* completed
*/
unsigned short r_epoch;
unsigned short w_epoch;
/* records being received in the current epoch */
DTLS1_BITMAP bitmap;
/* renegotiation starts a new set of sequence numbers */