tcp: cleanup functions related to socket option handling
Consistently only pass the inp and the sopt around. Don't pass the so around, since in a upcoming commit tcp_ctloutput_set() will be called from a context different from setsockopt(). Also expect the inp to be locked when calling tcp_ctloutput_[gs]et(), this is also required for the upcoming use by tcpsso, a command line tool to set socket options. Reviewed by: glebius, rscheff Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D34151
This commit is contained in:
Michael Tuexen
parent
8d72c409cd
commit
3b3c08c135
@ -519,8 +519,7 @@ bbr_log_pacing_delay_calc(struct tcp_bbr *bbr, uint16_t gain, uint32_t len,
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uint32_t cts, uint32_t usecs, uint64_t bw, uint32_t override, int mod);
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static int
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bbr_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp,
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struct tcpcb *tp);
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bbr_ctloutput(struct inpcb *inp, struct sockopt *sopt);
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static inline uint8_t
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bbr_state_val(struct tcp_bbr *bbr)
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@ -14235,16 +14234,17 @@ struct tcp_function_block __tcp_bbr = {
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* option.
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*/
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static int
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bbr_set_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_bbr *bbr)
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bbr_set_sockopt(struct inpcb *inp, struct sockopt *sopt)
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{
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struct epoch_tracker et;
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struct tcpcb *tp;
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struct tcp_bbr *bbr;
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int32_t error = 0, optval;
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switch (sopt->sopt_level) {
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case IPPROTO_IPV6:
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case IPPROTO_IP:
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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}
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switch (sopt->sopt_name) {
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@ -14293,7 +14293,7 @@ bbr_set_sockopt(struct socket *so, struct sockopt *sopt,
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case TCP_BBR_RETRAN_WTSO:
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break;
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default:
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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break;
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}
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INP_WUNLOCK(inp);
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@ -14629,7 +14629,7 @@ bbr_set_sockopt(struct socket *so, struct sockopt *sopt,
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}
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break;
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default:
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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break;
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}
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#ifdef NETFLIX_STATS
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@ -14643,11 +14643,18 @@ bbr_set_sockopt(struct socket *so, struct sockopt *sopt,
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* return 0 on success, error-num on failure
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*/
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static int
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bbr_get_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_bbr *bbr)
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bbr_get_sockopt(struct inpcb *inp, struct sockopt *sopt)
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{
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struct tcpcb *tp;
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struct tcp_bbr *bbr;
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int32_t error, optval;
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tp = intotcpcb(inp);
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bbr = (struct tcp_bbr *)tp->t_fb_ptr;
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if (bbr == NULL) {
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INP_WUNLOCK(inp);
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return (EINVAL);
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}
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/*
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* Because all our options are either boolean or an int, we can just
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* pull everything into optval and then unlock and copy. If we ever
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@ -14781,7 +14788,7 @@ bbr_get_sockopt(struct socket *so, struct sockopt *sopt,
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optval |= BBR_INCL_ENET_OH;
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break;
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default:
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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break;
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}
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INP_WUNLOCK(inp);
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@ -14793,24 +14800,15 @@ bbr_get_sockopt(struct socket *so, struct sockopt *sopt,
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* return 0 on success, error-num on failure
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*/
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static int
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bbr_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp)
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bbr_ctloutput(struct inpcb *inp, struct sockopt *sopt)
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{
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int32_t error = EINVAL;
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struct tcp_bbr *bbr;
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bbr = (struct tcp_bbr *)tp->t_fb_ptr;
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if (bbr == NULL) {
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/* Huh? */
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goto out;
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}
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if (sopt->sopt_dir == SOPT_SET) {
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return (bbr_set_sockopt(so, sopt, inp, tp, bbr));
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return (bbr_set_sockopt(inp, sopt));
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} else if (sopt->sopt_dir == SOPT_GET) {
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return (bbr_get_sockopt(so, sopt, inp, tp, bbr));
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return (bbr_get_sockopt(inp, sopt));
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} else {
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panic("%s: sopt_dir $%d", __func__, sopt->sopt_dir);
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}
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out:
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INP_WUNLOCK(inp);
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return (error);
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}
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static const char *bbr_stack_names[] = {
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@ -449,8 +449,7 @@ rack_cong_signal(struct tcpcb *tp,
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uint32_t type, uint32_t ack);
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static void rack_counter_destroy(void);
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static int
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rack_ctloutput(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp);
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rack_ctloutput(struct inpcb *inp, struct sockopt *sopt);
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static int32_t rack_ctor(void *mem, int32_t size, void *arg, int32_t how);
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static void
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rack_set_pace_segments(struct tcpcb *tp, struct tcp_rack *rack, uint32_t line, uint64_t *fill_override);
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@ -477,8 +476,7 @@ static struct rack_sendmap *rack_find_lowest_rsm(struct tcp_rack *rack);
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static void rack_free(struct tcp_rack *rack, struct rack_sendmap *rsm);
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static void rack_fini(struct tcpcb *tp, int32_t tcb_is_purged);
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static int
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rack_get_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_rack *rack);
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rack_get_sockopt(struct sockopt *sopt, struct inpcb *inp);
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static void
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rack_do_goodput_measurement(struct tcpcb *tp, struct tcp_rack *rack,
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tcp_seq th_ack, int line, uint8_t quality);
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@ -508,8 +506,7 @@ rack_proc_sack_blk(struct tcpcb *tp, struct tcp_rack *rack,
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static void rack_post_recovery(struct tcpcb *tp, uint32_t th_seq);
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static void rack_remxt_tmr(struct tcpcb *tp);
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static int
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rack_set_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_rack *rack);
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rack_set_sockopt(struct inpcb *inp, struct sockopt *sopt);
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static void rack_set_state(struct tcpcb *tp, struct tcp_rack *rack);
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static int32_t rack_stopall(struct tcpcb *tp);
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static void
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@ -20437,18 +20434,32 @@ static struct tcp_function_block __tcp_rack = {
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* option.
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*/
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static int
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rack_set_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_rack *rack)
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rack_set_sockopt(struct inpcb *inp, struct sockopt *sopt)
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{
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#ifdef INET6
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struct ip6_hdr *ip6 = (struct ip6_hdr *)rack->r_ctl.fsb.tcp_ip_hdr;
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struct ip6_hdr *ip6;
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#endif
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#ifdef INET
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struct ip *ip = (struct ip *)rack->r_ctl.fsb.tcp_ip_hdr;
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struct ip *ip;
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#endif
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struct tcpcb *tp;
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struct tcp_rack *rack;
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uint64_t loptval;
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int32_t error = 0, optval;
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tp = intotcpcb(inp);
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rack = (struct tcp_rack *)tp->t_fb_ptr;
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if (rack == NULL) {
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INP_WUNLOCK(inp);
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return (EINVAL);
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}
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#ifdef INET6
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ip6 = (struct ip6_hdr *)rack->r_ctl.fsb.tcp_ip_hdr;
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#endif
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#ifdef INET
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ip = (struct ip *)rack->r_ctl.fsb.tcp_ip_hdr;
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#endif
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switch (sopt->sopt_level) {
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#ifdef INET6
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case IPPROTO_IPV6:
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@ -20545,7 +20556,7 @@ rack_set_sockopt(struct socket *so, struct sockopt *sopt,
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break;
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default:
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/* Filter off all unknown options to the base stack */
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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break;
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}
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INP_WUNLOCK(inp);
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@ -20648,9 +20659,10 @@ rack_fill_info(struct tcpcb *tp, struct tcp_info *ti)
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}
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static int
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rack_get_sockopt(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp, struct tcp_rack *rack)
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rack_get_sockopt(struct inpcb *inp, struct sockopt *sopt)
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{
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struct tcpcb *tp;
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struct tcp_rack *rack;
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int32_t error, optval;
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uint64_t val, loptval;
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struct tcp_info ti;
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@ -20661,6 +20673,12 @@ rack_get_sockopt(struct socket *so, struct sockopt *sopt,
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* impact to this routine.
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*/
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error = 0;
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tp = intotcpcb(inp);
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rack = (struct tcp_rack *)tp->t_fb_ptr;
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if (rack == NULL) {
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INP_WUNLOCK(inp);
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return (EINVAL);
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}
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switch (sopt->sopt_name) {
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case TCP_INFO:
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/* First get the info filled */
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@ -20901,7 +20919,7 @@ rack_get_sockopt(struct socket *so, struct sockopt *sopt,
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optval = rack->r_ctl.timer_slop;
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break;
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default:
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return (tcp_default_ctloutput(so, sopt, inp, tp));
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return (tcp_default_ctloutput(inp, sopt));
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break;
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}
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INP_WUNLOCK(inp);
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@ -20915,24 +20933,15 @@ rack_get_sockopt(struct socket *so, struct sockopt *sopt,
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}
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static int
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rack_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp)
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rack_ctloutput(struct inpcb *inp, struct sockopt *sopt)
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{
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int32_t error = EINVAL;
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struct tcp_rack *rack;
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rack = (struct tcp_rack *)tp->t_fb_ptr;
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if (rack == NULL) {
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/* Huh? */
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goto out;
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}
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if (sopt->sopt_dir == SOPT_SET) {
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return (rack_set_sockopt(so, sopt, inp, tp, rack));
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return (rack_set_sockopt(inp, sopt));
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} else if (sopt->sopt_dir == SOPT_GET) {
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return (rack_get_sockopt(so, sopt, inp, tp, rack));
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return (rack_get_sockopt(inp, sopt));
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} else {
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panic("%s: sopt_dir $%d", __func__, sopt->sopt_dir);
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}
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out:
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INP_WUNLOCK(inp);
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return (error);
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}
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static const char *rack_stack_names[] = {
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@ -1719,8 +1719,10 @@ tcp_ctloutput_set(struct inpcb *inp, struct sockopt *sopt)
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int error = 0;
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MPASS(sopt->sopt_dir == SOPT_SET);
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INP_WLOCK_ASSERT(inp);
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if (sopt->sopt_level != IPPROTO_TCP) {
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INP_WUNLOCK(inp);
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#ifdef INET6
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if (inp->inp_vflag & INP_IPV6PROTO)
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error = ip6_ctloutput(inp->inp_socket, sopt);
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@ -1768,6 +1770,11 @@ tcp_ctloutput_set(struct inpcb *inp, struct sockopt *sopt)
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default:
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return (error);
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}
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INP_WLOCK(inp);
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if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
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INP_WUNLOCK(inp);
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return (ECONNRESET);
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}
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} else if (sopt->sopt_name == TCP_FUNCTION_BLK) {
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/*
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* Protect the TCP option TCP_FUNCTION_BLK so
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@ -1776,6 +1783,7 @@ tcp_ctloutput_set(struct inpcb *inp, struct sockopt *sopt)
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struct tcp_function_set fsn;
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struct tcp_function_block *blk;
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INP_WUNLOCK(inp);
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error = sooptcopyin(sopt, &fsn, sizeof fsn, sizeof fsn);
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if (error)
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return (error);
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@ -1871,15 +1879,10 @@ tcp_ctloutput_set(struct inpcb *inp, struct sockopt *sopt)
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return (error);
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}
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INP_WLOCK(inp);
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if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
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INP_WUNLOCK(inp);
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return (ECONNRESET);
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}
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tp = intotcpcb(inp);
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/* Pass in the INP locked, caller must unlock it. */
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return (tp->t_fb->tfb_tcp_ctloutput(inp->inp_socket, sopt, inp, tp));
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/* Pass in the INP locked, callee must unlock it. */
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return (tp->t_fb->tfb_tcp_ctloutput(inp, sopt));
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}
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static int
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@ -1889,8 +1892,10 @@ tcp_ctloutput_get(struct inpcb *inp, struct sockopt *sopt)
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struct tcpcb *tp;
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MPASS(sopt->sopt_dir == SOPT_GET);
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INP_WLOCK_ASSERT(inp);
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if (sopt->sopt_level != IPPROTO_TCP) {
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INP_WUNLOCK(inp);
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#ifdef INET6
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if (inp->inp_vflag & INP_IPV6PROTO)
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error = ip6_ctloutput(inp->inp_socket, sopt);
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@ -1903,11 +1908,6 @@ tcp_ctloutput_get(struct inpcb *inp, struct sockopt *sopt)
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#endif
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return (error);
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}
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INP_WLOCK(inp);
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if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
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INP_WUNLOCK(inp);
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return (ECONNRESET);
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}
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tp = intotcpcb(inp);
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if (((sopt->sopt_name == TCP_FUNCTION_BLK) ||
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(sopt->sopt_name == TCP_FUNCTION_ALIAS))) {
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@ -1928,8 +1928,8 @@ tcp_ctloutput_get(struct inpcb *inp, struct sockopt *sopt)
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return (error);
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}
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/* Pass in the INP locked, caller must unlock it. */
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return (tp->t_fb->tfb_tcp_ctloutput(inp->inp_socket, sopt, inp, tp));
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/* Pass in the INP locked, callee must unlock it. */
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return (tp->t_fb->tfb_tcp_ctloutput(inp, sopt));
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}
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int
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@ -1940,6 +1940,11 @@ tcp_ctloutput(struct socket *so, struct sockopt *sopt)
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inp = sotoinpcb(so);
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KASSERT(inp != NULL, ("tcp_ctloutput: inp == NULL"));
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INP_WLOCK(inp);
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if (inp->inp_flags & (INP_TIMEWAIT | INP_DROPPED)) {
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INP_WUNLOCK(inp);
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return (ECONNRESET);
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}
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if (sopt->sopt_dir == SOPT_SET)
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return (tcp_ctloutput_set(inp, sopt));
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else if (sopt->sopt_dir == SOPT_GET)
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@ -1991,10 +1996,11 @@ copyin_tls_enable(struct sockopt *sopt, struct tls_enable *tls)
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extern struct cc_algo newreno_cc_algo;
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static int
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tcp_congestion(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp)
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tcp_congestion(struct inpcb *inp, struct sockopt *sopt)
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{
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struct cc_algo *algo;
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void *ptr = NULL;
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struct tcpcb *tp;
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struct cc_var cc_mem;
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char buf[TCP_CA_NAME_MAX];
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size_t mem_sz;
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@ -2103,8 +2109,9 @@ tcp_congestion(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struc
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}
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int
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tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp)
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tcp_default_ctloutput(struct inpcb *inp, struct sockopt *sopt)
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{
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struct tcpcb *tp;
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int error, opt, optval;
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u_int ui;
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struct tcp_info ti;
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@ -2119,6 +2126,7 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
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INP_WLOCK_ASSERT(inp);
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tp = intotcpcb(inp);
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switch (sopt->sopt_level) {
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#ifdef INET6
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case IPPROTO_IPV6:
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@ -2317,7 +2325,7 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
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break;
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case TCP_CONGESTION:
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error = tcp_congestion(so, sopt, inp, tp);
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error = tcp_congestion(inp, sopt);
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break;
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case TCP_REUSPORT_LB_NUMA:
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@ -2336,7 +2344,7 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
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error = copyin_tls_enable(sopt, &tls);
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if (error)
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break;
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error = ktls_enable_tx(so, &tls);
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error = ktls_enable_tx(inp->inp_socket, &tls);
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break;
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case TCP_TXTLS_MODE:
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INP_WUNLOCK(inp);
|
||||
@ -2345,7 +2353,7 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
|
||||
return (error);
|
||||
|
||||
INP_WLOCK_RECHECK(inp);
|
||||
error = ktls_set_tx_mode(so, ui);
|
||||
error = ktls_set_tx_mode(inp->inp_socket, ui);
|
||||
INP_WUNLOCK(inp);
|
||||
break;
|
||||
case TCP_RXTLS_ENABLE:
|
||||
@ -2354,7 +2362,7 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
|
||||
sizeof(tls));
|
||||
if (error)
|
||||
break;
|
||||
error = ktls_enable_rx(so, &tls);
|
||||
error = ktls_enable_rx(inp->inp_socket, &tls);
|
||||
break;
|
||||
#endif
|
||||
|
||||
@ -2699,14 +2707,14 @@ tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp
|
||||
#endif
|
||||
#ifdef KERN_TLS
|
||||
case TCP_TXTLS_MODE:
|
||||
error = ktls_get_tx_mode(so, &optval);
|
||||
error = ktls_get_tx_mode(inp->inp_socket, &optval);
|
||||
INP_WUNLOCK(inp);
|
||||
if (error == 0)
|
||||
error = sooptcopyout(sopt, &optval,
|
||||
sizeof(optval));
|
||||
break;
|
||||
case TCP_RXTLS_MODE:
|
||||
error = ktls_get_rx_mode(so, &optval);
|
||||
error = ktls_get_rx_mode(inp->inp_socket, &optval);
|
||||
INP_WUNLOCK(inp);
|
||||
if (error == 0)
|
||||
error = sooptcopyout(sopt, &optval,
|
||||
|
||||
@ -358,8 +358,7 @@ struct tcp_function_block {
|
||||
struct socket *, struct tcpcb *,
|
||||
int, int, uint8_t,
|
||||
int, struct timeval *);
|
||||
int (*tfb_tcp_ctloutput)(struct socket *so, struct sockopt *sopt,
|
||||
struct inpcb *inp, struct tcpcb *tp);
|
||||
int (*tfb_tcp_ctloutput)(struct inpcb *inp, struct sockopt *sopt);
|
||||
/* Optional memory allocation/free routine */
|
||||
int (*tfb_tcp_fb_init)(struct tcpcb *);
|
||||
void (*tfb_tcp_fb_fini)(struct tcpcb *, int);
|
||||
@ -1128,7 +1127,7 @@ int find_tcp_function_alias(struct tcp_function_block *blk, struct tcp_function_
|
||||
void tcp_switch_back_to_default(struct tcpcb *tp);
|
||||
struct tcp_function_block *
|
||||
find_and_ref_tcp_fb(struct tcp_function_block *fs);
|
||||
int tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp);
|
||||
int tcp_default_ctloutput(struct inpcb *inp, struct sockopt *sopt);
|
||||
|
||||
extern counter_u64_t tcp_inp_lro_direct_queue;
|
||||
extern counter_u64_t tcp_inp_lro_wokeup_queue;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user