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[SCTP] sctp_connectx() API support

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Implements sctp_connectx() as defined in the SCTP sockets API draft by
tunneling the request through a setsockopt().

Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Frank Filz
2005-06-20 13:14:57 -07:00
committed by David S. Miller
parent 8b22c249e7
commit 3f7a87d2fa
16 changed files with 677 additions and 260 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
include/net/sctp/command.h
View File

@@ -65,9 +65,11 @@ typedef enum {
SCTP_CMD_TIMER_START, /* Start a timer. */
SCTP_CMD_TIMER_RESTART, /* Restart a timer. */
SCTP_CMD_TIMER_STOP, /* Stop a timer. */
SCTP_CMD_COUNTER_RESET, /* Reset a counter. */
SCTP_CMD_COUNTER_INC, /* Increment a counter. */
SCTP_CMD_INIT_CHOOSE_TRANSPORT, /* Choose transport for an INIT. */
SCTP_CMD_INIT_COUNTER_RESET, /* Reset init counter. */
SCTP_CMD_INIT_COUNTER_INC, /* Increment init counter. */
SCTP_CMD_INIT_RESTART, /* High level, do init timer work. */
SCTP_CMD_COOKIEECHO_RESTART, /* High level, do cookie-echo timer work. */
SCTP_CMD_INIT_FAILED, /* High level, do init failure work. */
SCTP_CMD_REPORT_DUP, /* Report a duplicate TSN. */
SCTP_CMD_STRIKE, /* Mark a strike against a transport. */
@@ -118,7 +120,6 @@ typedef union {
int error;
sctp_state_t state;
sctp_event_timeout_t to;
sctp_counter_t counter;
void *ptr;
struct sctp_chunk *chunk;
struct sctp_association *asoc;
@@ -165,7 +166,6 @@ SCTP_ARG_CONSTRUCTOR(U16, __u16, u16)
SCTP_ARG_CONSTRUCTOR(U8, __u8, u8)
SCTP_ARG_CONSTRUCTOR(ERROR, int, error)
SCTP_ARG_CONSTRUCTOR(STATE, sctp_state_t, state)
SCTP_ARG_CONSTRUCTOR(COUNTER, sctp_counter_t, counter)
SCTP_ARG_CONSTRUCTOR(TO, sctp_event_timeout_t, to)
SCTP_ARG_CONSTRUCTOR(PTR, void *, ptr)
SCTP_ARG_CONSTRUCTOR(CHUNK, struct sctp_chunk *, chunk)

7
include/net/sctp/constants.h
View File

@@ -263,13 +263,6 @@ enum { SCTP_MIN_PMTU = 576 };
enum { SCTP_MAX_DUP_TSNS = 16 };
enum { SCTP_MAX_GABS = 16 };
typedef enum {
SCTP_COUNTER_INIT_ERROR,
} sctp_counter_t;
/* How many counters does an association need? */
#define SCTP_NUMBER_COUNTERS 5
/* Here we define the default timers. */
/* cookie timer def = ? seconds */

17
include/net/sctp/sctp.h
View File

@@ -223,6 +223,22 @@ DECLARE_SNMP_STAT(struct sctp_mib, sctp_statistics);
extern int sctp_debug_flag;
#define SCTP_DEBUG_PRINTK(whatever...) \
((void) (sctp_debug_flag && printk(KERN_DEBUG whatever)))
#define SCTP_DEBUG_PRINTK_IPADDR(lead, trail, leadparm, saddr, otherparms...) \
if (sctp_debug_flag) { \
if (saddr->sa.sa_family == AF_INET6) { \
printk(KERN_DEBUG \
lead "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x" trail, \
leadparm, \
NIP6(saddr->v6.sin6_addr), \
otherparms); \
} else { \
printk(KERN_DEBUG \
lead "%u.%u.%u.%u" trail, \
leadparm, \
NIPQUAD(saddr->v4.sin_addr.s_addr), \
otherparms); \
} \
}
#define SCTP_ENABLE_DEBUG { sctp_debug_flag = 1; }
#define SCTP_DISABLE_DEBUG { sctp_debug_flag = 0; }
@@ -236,6 +252,7 @@ extern int sctp_debug_flag;
#else /* SCTP_DEBUG */
#define SCTP_DEBUG_PRINTK(whatever...)
#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
#define SCTP_ENABLE_DEBUG
#define SCTP_DISABLE_DEBUG
#define SCTP_ASSERT(expr, str, func)

8
include/net/sctp/sm.h
View File

@@ -116,7 +116,8 @@ sctp_state_fn_t sctp_sf_eat_data_fast_4_4;
sctp_state_fn_t sctp_sf_eat_sack_6_2;
sctp_state_fn_t sctp_sf_tabort_8_4_8;
sctp_state_fn_t sctp_sf_operr_notify;
sctp_state_fn_t sctp_sf_t1_timer_expire;
sctp_state_fn_t sctp_sf_t1_init_timer_expire;
sctp_state_fn_t sctp_sf_t1_cookie_timer_expire;
sctp_state_fn_t sctp_sf_t2_timer_expire;
sctp_state_fn_t sctp_sf_t4_timer_expire;
sctp_state_fn_t sctp_sf_t5_timer_expire;
@@ -258,7 +259,10 @@ struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
void sctp_chunk_assign_tsn(struct sctp_chunk *);
void sctp_chunk_assign_ssn(struct sctp_chunk *);
void sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands, __u16 error);
sctp_disposition_t sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
__u16 error,
const struct sctp_association *asoc,
struct sctp_transport *transport);
/* Prototypes for statetable processing. */

41
include/net/sctp/structs.h
View File

@@ -867,10 +867,13 @@ struct sctp_transport {
*/
unsigned long last_time_ecne_reduced;
/* active : The current active state of this destination,
* : i.e. DOWN, UP, etc.
/* The number of times INIT has been sent on this transport. */
int init_sent_count;
/* state : The current state of this destination,
* : i.e. SCTP_ACTIVE, SCTP_INACTIVE, SCTP_UNKOWN.
*/
int active;
int state;
/* hb_allowed : The current heartbeat state of this destination,
* : i.e. ALLOW-HB, NO-HEARTBEAT, etc.
@@ -1222,9 +1225,6 @@ struct sctp_endpoint {
/* sendbuf acct. policy. */
__u32 sndbuf_policy;
/* Name for debugging output... */
char *debug_name;
};
/* Recover the outter endpoint structure. */
@@ -1314,11 +1314,23 @@ struct sctp_association {
* : association. Normally this information is
* : hashed or keyed for quick lookup and access
* : of the TCB.
* : The list is also initialized with the list
* : of addresses passed with the sctp_connectx()
* : call.
*
* It is a list of SCTP_transport's.
*/
struct list_head transport_addr_list;
/* transport_count
*
* Peer : A count of the number of peer addresses
* Transport : in the Peer Transport Address List.
* Address :
* Count :
*/
__u16 transport_count;
/* port
* The transport layer port number.
*/
@@ -1486,6 +1498,9 @@ struct sctp_association {
/* Transport to which SHUTDOWN chunk was last sent. */
struct sctp_transport *shutdown_last_sent_to;
/* Transport to which INIT chunk was last sent. */
struct sctp_transport *init_last_sent_to;
/* Next TSN : The next TSN number to be assigned to a new
* : DATA chunk. This is sent in the INIT or INIT
* : ACK chunk to the peer and incremented each
@@ -1549,8 +1564,11 @@ struct sctp_association {
/* The message size at which SCTP fragmentation will occur. */
__u32 frag_point;
/* Currently only one counter is used to count INIT errors. */
int counters[SCTP_NUMBER_COUNTERS];
/* Counter used to count INIT errors. */
int init_err_counter;
/* Count the number of INIT cycles (for doubling timeout). */
int init_cycle;
/* Default send parameters. */
__u16 default_stream;
@@ -1708,6 +1726,8 @@ void sctp_association_free(struct sctp_association *);
void sctp_association_put(struct sctp_association *);
void sctp_association_hold(struct sctp_association *);
struct sctp_transport *sctp_assoc_choose_init_transport(
struct sctp_association *);
struct sctp_transport *sctp_assoc_choose_shutdown_transport(
struct sctp_association *);
void sctp_assoc_update_retran_path(struct sctp_association *);
@@ -1717,9 +1737,12 @@ int sctp_assoc_lookup_laddr(struct sctp_association *asoc,
const union sctp_addr *laddr);
struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *,
const union sctp_addr *address,
const int gfp);
const int gfp,
const int peer_state);
void sctp_assoc_del_peer(struct sctp_association *asoc,
const union sctp_addr *addr);
void sctp_assoc_rm_peer(struct sctp_association *asoc,
struct sctp_transport *peer);
void sctp_assoc_control_transport(struct sctp_association *,
struct sctp_transport *,
sctp_transport_cmd_t, sctp_sn_error_t);

3
include/net/sctp/user.h
View File

@@ -111,6 +111,8 @@ enum sctp_optname {
#define SCTP_GET_LOCAL_ADDRS_NUM SCTP_GET_LOCAL_ADDRS_NUM
SCTP_GET_LOCAL_ADDRS, /* Get all local addresss. */
#define SCTP_GET_LOCAL_ADDRS SCTP_GET_LOCAL_ADDRS
SCTP_SOCKOPT_CONNECTX, /* CONNECTX requests. */
#define SCTP_SOCKOPT_CONNECTX SCTP_SOCKOPT_CONNECTX
};
/*
@@ -527,6 +529,7 @@ struct sctp_paddrinfo {
enum sctp_spinfo_state {
SCTP_INACTIVE,
SCTP_ACTIVE,
SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */
};
/*