mirror of https://github.com/F-Stack/f-stack.git
johnjiang
GitHub
commit
148ee2809b
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@ -1,4 +1,6 @@
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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@ -10,7 +12,7 @@
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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@ -32,17 +34,12 @@
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*/
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#ifndef _SYS_SOCKBUF_H_
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#define _SYS_SOCKBUF_H_
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#include <sys/selinfo.h> /* for struct selinfo */
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#include <sys/_lock.h>
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#include <sys/_mutex.h>
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#include <sys/_sx.h>
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#include <sys/_task.h>
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#define SB_MAX (2*1024*1024) /* default for max chars in sockbuf */
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/*
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* Constants for sb_flags field of struct sockbuf.
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* Constants for sb_flags field of struct sockbuf/xsockbuf.
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*/
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#define SB_TLS_RX 0x01 /* using KTLS on RX */
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#define SB_TLS_RX_RUNNING 0x02 /* KTLS RX operation running */
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#define SB_WAIT 0x04 /* someone is waiting for data/space */
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#define SB_SEL 0x08 /* someone is selecting */
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#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
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@ -55,38 +52,38 @@
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#define SB_AUTOSIZE 0x800 /* automatically size socket buffer */
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#define SB_STOP 0x1000 /* backpressure indicator */
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#define SB_AIO_RUNNING 0x2000 /* AIO operation running */
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#define SB_TLS_IFNET 0x4000 /* has used / is using ifnet KTLS */
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#define SBS_CANTSENDMORE 0x0010 /* can't send more data to peer */
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#define SBS_CANTRCVMORE 0x0020 /* can't receive more data from peer */
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#define SBS_RCVATMARK 0x0040 /* at mark on input */
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#if defined(_KERNEL) || defined(_WANT_SOCKET)
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#include <sys/_lock.h>
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#include <sys/_mutex.h>
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#include <sys/_sx.h>
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#include <sys/_task.h>
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#define SB_MAX (2*1024*1024) /* default for max chars in sockbuf */
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struct ktls_session;
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struct mbuf;
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struct sockaddr;
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struct socket;
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struct thread;
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struct xsockbuf {
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u_int sb_cc;
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u_int sb_hiwat;
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u_int sb_mbcnt;
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u_int sb_mcnt;
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u_int sb_ccnt;
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u_int sb_mbmax;
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int sb_lowat;
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int sb_timeo;
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short sb_flags;
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};
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struct selinfo;
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/*
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* Variables for socket buffering.
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*
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* Locking key to struct sockbuf:
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* (a) locked by SOCKBUF_LOCK().
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* (b) locked by sblock()
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*/
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struct sockbuf {
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struct selinfo sb_sel; /* process selecting read/write */
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struct mtx sb_mtx; /* sockbuf lock */
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struct sx sb_sx; /* prevent I/O interlacing */
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struct mtx sb_mtx; /* sockbuf lock */
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struct sx sb_sx; /* prevent I/O interlacing */
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struct selinfo *sb_sel; /* process selecting read/write */
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short sb_state; /* (a) socket state on sockbuf */
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#define sb_startzero sb_mb
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struct mbuf *sb_mb; /* (a) the mbuf chain */
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@ -104,15 +101,22 @@ struct sockbuf {
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u_int sb_ccnt; /* (a) number of clusters in buffer */
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u_int sb_mbmax; /* (a) max chars of mbufs to use */
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u_int sb_ctl; /* (a) non-data chars in buffer */
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u_int sb_tlscc; /* (a) TLS chain characters */
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u_int sb_tlsdcc; /* (a) TLS characters being decrypted */
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int sb_lowat; /* (a) low water mark */
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sbintime_t sb_timeo; /* (a) timeout for read/write */
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short sb_flags; /* (a) flags, see below */
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uint64_t sb_tls_seqno; /* (a) TLS seqno */
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struct ktls_session *sb_tls_info; /* (a + b) TLS state */
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struct mbuf *sb_mtls; /* (a) TLS mbuf chain */
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struct mbuf *sb_mtlstail; /* (a) last mbuf in TLS chain */
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short sb_flags; /* (a) flags, see above */
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int (*sb_upcall)(struct socket *, void *, int); /* (a) */
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void *sb_upcallarg; /* (a) */
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TAILQ_HEAD(, kaiocb) sb_aiojobq; /* (a) pending AIO ops */
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struct task sb_aiotask; /* AIO task */
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};
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#endif /* defined(_KERNEL) || defined(_WANT_SOCKET) */
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#ifdef _KERNEL
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/*
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@ -146,15 +150,18 @@ int sbappendaddr_locked(struct sockbuf *sb, const struct sockaddr *asa,
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struct mbuf *m0, struct mbuf *control);
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int sbappendaddr_nospacecheck_locked(struct sockbuf *sb,
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const struct sockaddr *asa, struct mbuf *m0, struct mbuf *control);
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int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
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struct mbuf *control);
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int sbappendcontrol_locked(struct sockbuf *sb, struct mbuf *m0,
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struct mbuf *control);
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void sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
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struct mbuf *control, int flags);
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void sbappendcontrol_locked(struct sockbuf *sb, struct mbuf *m0,
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struct mbuf *control, int flags);
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void sbappendrecord(struct sockbuf *sb, struct mbuf *m0);
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void sbappendrecord_locked(struct sockbuf *sb, struct mbuf *m0);
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void sbcompress(struct sockbuf *sb, struct mbuf *m, struct mbuf *n);
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struct mbuf *
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sbcreatecontrol(caddr_t p, int size, int type, int level);
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struct mbuf *
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sbcreatecontrol_how(void *p, int size, int type, int level,
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int wait);
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void sbdestroy(struct sockbuf *sb, struct socket *so);
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void sbdrop(struct sockbuf *sb, int len);
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void sbdrop_locked(struct sockbuf *sb, int len);
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@ -167,20 +174,21 @@ void sbflush_locked(struct sockbuf *sb);
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void sbrelease(struct sockbuf *sb, struct socket *so);
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void sbrelease_internal(struct sockbuf *sb, struct socket *so);
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void sbrelease_locked(struct sockbuf *sb, struct socket *so);
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int sbreserve(struct sockbuf *sb, u_long cc, struct socket *so,
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struct thread *td);
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int sbsetopt(struct socket *so, int cmd, u_long cc);
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int sbreserve_locked(struct sockbuf *sb, u_long cc, struct socket *so,
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struct thread *td);
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void sbsndptr_adv(struct sockbuf *sb, struct mbuf *mb, u_int len);
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struct mbuf *
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sbsndptr(struct sockbuf *sb, u_int off, u_int len, u_int *moff);
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sbsndptr_noadv(struct sockbuf *sb, u_int off, u_int *moff);
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struct mbuf *
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sbsndmbuf(struct sockbuf *sb, u_int off, u_int *moff);
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void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb);
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int sbwait(struct sockbuf *sb);
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int sblock(struct sockbuf *sb, int flags);
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void sbunlock(struct sockbuf *sb);
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void sballoc(struct sockbuf *, struct mbuf *);
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void sbfree(struct sockbuf *, struct mbuf *);
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void sballoc_ktls_rx(struct sockbuf *sb, struct mbuf *m);
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void sbfree_ktls_rx(struct sockbuf *sb, struct mbuf *m);
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int sbready(struct sockbuf *, struct mbuf *, int);
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/*
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