diff options
| author | jlemon <jlemon@FreeBSD.org> | 2003-02-19 22:32:43 +0000 |
|---|---|---|
| committer | jlemon <jlemon@FreeBSD.org> | 2003-02-19 22:32:43 +0000 |
| commit | a8bc02dcb257f24a8246bb1c31abe58bf12ebd04 (patch) | |
| tree | 6317b858b0555a797efb2e5b5bd4c2eebbdc0d10 /sys/netinet/in_pcb.c | |
| parent | 79a1ebfa6f53d733dc4775c2031ff3d16e53b75c (diff) | |
| download | FreeBSD-src-a8bc02dcb257f24a8246bb1c31abe58bf12ebd04.zip FreeBSD-src-a8bc02dcb257f24a8246bb1c31abe58bf12ebd04.tar.gz | |
Add a TCP TIMEWAIT state which uses less space than a fullblown TCP
control block. Allow the socket and tcpcb structures to be freed
earlier than inpcb. Update code to understand an inp w/o a socket.
Reviewed by: hsu, silby, jayanth
Sponsored by: DARPA, NAI Labs
Diffstat (limited to 'sys/netinet/in_pcb.c')
| -rw-r--r-- | sys/netinet/in_pcb.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/sys/netinet/in_pcb.c b/sys/netinet/in_pcb.c index 7f83917..46f824d 100644 --- a/sys/netinet/in_pcb.c +++ b/sys/netinet/in_pcb.c @@ -62,6 +62,7 @@ #include <netinet/in_pcb.h> #include <netinet/in_var.h> #include <netinet/ip_var.h> +#include <netinet/tcp_var.h> #ifdef INET6 #include <netinet/ip6.h> #include <netinet6/ip6_var.h> @@ -169,8 +170,11 @@ in_pcballoc(so, pcbinfo, td) } #endif /*IPSEC*/ #if defined(INET6) - if (INP_SOCKAF(so) == AF_INET6 && ip6_v6only) - inp->inp_flags |= IN6P_IPV6_V6ONLY; + if (INP_SOCKAF(so) == AF_INET6) { + inp->inp_vflag |= INP_IPV6PROTO; + if (ip6_v6only) + inp->inp_flags |= IN6P_IPV6_V6ONLY; + } #endif LIST_INSERT_HEAD(pcbinfo->listhead, inp, inp_list); pcbinfo->ipi_count++; @@ -294,6 +298,17 @@ in_pcbbind_setup(inp, nam, laddrp, lportp, td) t = in_pcblookup_local(inp->inp_pcbinfo, sin->sin_addr, lport, prison ? 0 : INPLOOKUP_WILDCARD); + /* + * XXX + * This entire block sorely needs a rewrite. + */ + if (t && (t->inp_vflag & INP_TIMEWAIT)) { + if ((ntohl(sin->sin_addr.s_addr) != INADDR_ANY || + ntohl(t->inp_laddr.s_addr) != INADDR_ANY || + (intotw(t)->tw_so_options & SO_REUSEPORT) == 0) && + (so->so_cred->cr_uid != intotw(t)->tw_cred->cr_uid)) + return (EADDRINUSE); + } else if (t && (ntohl(sin->sin_addr.s_addr) != INADDR_ANY || ntohl(t->inp_laddr.s_addr) != INADDR_ANY || @@ -317,6 +332,10 @@ in_pcbbind_setup(inp, nam, laddrp, lportp, td) return (EADDRNOTAVAIL); t = in_pcblookup_local(pcbinfo, sin->sin_addr, lport, prison ? 0 : wild); + if (t && (t->inp_vflag & INP_TIMEWAIT)) { + if ((reuseport & intotw(t)->tw_so_options) == 0) + return (EADDRINUSE); + } else if (t && (reuseport & t->inp_socket->so_options) == 0) { #if defined(INET6) @@ -640,8 +659,10 @@ in_pcbdetach(inp) #endif /*IPSEC*/ inp->inp_gencnt = ++ipi->ipi_gencnt; in_pcbremlists(inp); - so->so_pcb = 0; - sotryfree(so); + if (so) { + so->so_pcb = 0; + sotryfree(so); + } if (inp->inp_options) (void)m_free(inp->inp_options); if (inp->inp_route.ro_rt) |
