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Differential D26449 Diff 77161 sys/netinet/raw_ip.c

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sys/netinet/raw_ip.c

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*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__FBSDID("$FreeBSD$"); __FBSDID("$FreeBSD$");
#include "opt_inet.h" #include "opt_inet.h"
#include "opt_inet6.h" #include "opt_inet6.h"
#include "opt_ipsec.h" #include "opt_ipsec.h"
#include "opt_route.h"
#include <sys/param.h> #include <sys/param.h>
#include <sys/jail.h> #include <sys/jail.h>
#include <sys/kernel.h> #include <sys/kernel.h>
#include <sys/eventhandler.h> #include <sys/eventhandler.h>
#include <sys/lock.h> #include <sys/lock.h>
#include <sys/malloc.h> #include <sys/malloc.h>
#include <sys/mbuf.h> #include <sys/mbuf.h>
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#include <net/if.h> #include <net/if.h>
#include <net/if_var.h> #include <net/if_var.h>
#include <net/route.h> #include <net/route.h>
#include <net/vnet.h> #include <net/vnet.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <netinet/in_systm.h> #include <netinet/in_systm.h>
#include <netinet/in_fib.h>
#include <netinet/in_pcb.h> #include <netinet/in_pcb.h>
#include <netinet/in_var.h> #include <netinet/in_var.h>
#include <netinet/if_ether.h> #include <netinet/if_ether.h>
#include <netinet/ip.h> #include <netinet/ip.h>
#include <netinet/ip_var.h> #include <netinet/ip_var.h>
#include <netinet/ip_mroute.h> #include <netinet/ip_mroute.h>
#include <netinet/ip_icmp.h> #include <netinet/ip_icmp.h>
▲ Show 20 Lines • Show All 401 Lines • ▼ Show 20 Lines if ((inp->inp_flags & INP_HDRINCL) == 0) {
if (inp->inp_flags & INP_DONTFRAG) if (inp->inp_flags & INP_DONTFRAG)
ip->ip_off = htons(IP_DF); ip->ip_off = htons(IP_DF);
else else
ip->ip_off = htons(0); ip->ip_off = htons(0);
ip->ip_p = inp->inp_ip_p; ip->ip_p = inp->inp_ip_p;
ip->ip_len = htons(m->m_pkthdr.len); ip->ip_len = htons(m->m_pkthdr.len);
ip->ip_src = inp->inp_laddr; ip->ip_src = inp->inp_laddr;
ip->ip_dst.s_addr = dst; ip->ip_dst.s_addr = dst;
#ifdef ROUTE_MPATH
if (V_fib_hash_outbound) {
uint32_t hash_type, hash_val;
hash_val = fib4_calc_software_hash(ip->ip_src,
ip->ip_dst, 0, 0, ip->ip_p, &hash_type);
m->m_pkthdr.flowid = hash_val;
M_HASHTYPE_SET(m, hash_type);
flags |= IP_NODEFAULTFLOWID;
}
#endif
if (jailed(inp->inp_cred)) { if (jailed(inp->inp_cred)) {
/* /*
* prison_local_ip4() would be good enough but would * prison_local_ip4() would be good enough but would
* let a source of INADDR_ANY pass, which we do not * let a source of INADDR_ANY pass, which we do not
* want to see from jails. * want to see from jails.
*/ */
if (ip->ip_src.s_addr == INADDR_ANY) { if (ip->ip_src.s_addr == INADDR_ANY) {
NET_EPOCH_ENTER(et); NET_EPOCH_ENTER(et);
Show All 19 Lines#endif
ip = mtod(m, struct ip *); ip = mtod(m, struct ip *);
hlen = ip->ip_hl << 2; hlen = ip->ip_hl << 2;
if (m->m_len < hlen) { if (m->m_len < hlen) {
m = m_pullup(m, hlen); m = m_pullup(m, hlen);
if (m == NULL) if (m == NULL)
return (EINVAL); return (EINVAL);
ip = mtod(m, struct ip *); ip = mtod(m, struct ip *);
} }
#ifdef ROUTE_MPATH
if (V_fib_hash_outbound) {
uint32_t hash_type, hash_val;
hash_val = fib4_calc_software_hash(ip->ip_dst,
ip->ip_src, 0, 0, ip->ip_p, &hash_type);
m->m_pkthdr.flowid = hash_val;
M_HASHTYPE_SET(m, hash_type);
flags |= IP_NODEFAULTFLOWID;
}
#endif
INP_RLOCK(inp); INP_RLOCK(inp);
/* /*
* Don't allow both user specified and setsockopt options, * Don't allow both user specified and setsockopt options,
* and don't allow packet length sizes that will crash. * and don't allow packet length sizes that will crash.
*/ */
if ((hlen < sizeof (*ip)) if ((hlen < sizeof (*ip))
|| ((hlen > sizeof (*ip)) && inp->inp_options) || ((hlen > sizeof (*ip)) && inp->inp_options)
|| (ntohs(ip->ip_len) != m->m_pkthdr.len)) { || (ntohs(ip->ip_len) != m->m_pkthdr.len)) {
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