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| Rev 4722 | Rev 4724 | ||
|---|---|---|---|
| Line 145... | Line 145... | ||
| 145 | /** Returns the fragment offest. |
145 | /** Returns the fragment offest. |
| 146 | * @param length The prefixed data total length. Input parameter. |
146 | * @param length The prefixed data total length. Input parameter. |
| 147 | */ |
147 | */ |
| 148 | #define IP_FRAGMENT_OFFSET( length ) (( length ) / 8 ) |
148 | #define IP_FRAGMENT_OFFSET( length ) (( length ) / 8 ) |
| 149 | 149 | ||
| - | 150 | /** The IP localhost address. |
|
| - | 151 | */ |
|
| - | 152 | #define IPV4_LOCALHOST_ADDRESS htonl(( 127 << 24 ) + 1 ) |
|
| - | 153 | ||
| 150 | /** IP global data. |
154 | /** IP global data. |
| 151 | */ |
155 | */ |
| 152 | ip_globals_t ip_globals; |
156 | ip_globals_t ip_globals; |
| 153 | 157 | ||
| 154 | DEVICE_MAP_IMPLEMENT( ip_netifs, ip_netif_t ) |
158 | DEVICE_MAP_IMPLEMENT( ip_netifs, ip_netif_t ) |
| Line 571... | Line 575... | ||
| 571 | if( !( netif && route )){ |
575 | if( !( netif && route )){ |
| 572 | fibril_rwlock_read_unlock( & ip_globals.netifs_lock ); |
576 | fibril_rwlock_read_unlock( & ip_globals.netifs_lock ); |
| 573 | phone = ip_prepare_icmp_and_get_phone( error, packet, NULL ); |
577 | phone = ip_prepare_icmp_and_get_phone( error, packet, NULL ); |
| 574 | if( phone >= 0 ){ |
578 | if( phone >= 0 ){ |
| 575 | // unreachable ICMP if no routing |
579 | // unreachable ICMP if no routing |
| 576 | icmp_destination_unreachable_msg( phone, ICMP_HOST_UNREACH, 0, packet ); |
580 | icmp_destination_unreachable_msg( phone, ICMP_NET_UNREACH, 0, packet ); |
| 577 | } |
581 | } |
| 578 | return ENOENT; |
582 | return ENOENT; |
| 579 | } |
583 | } |
| 580 | if( error ){ |
584 | if( error ){ |
| 581 | // do not send for broadcast, anycast packets or network broadcast |
585 | // do not send for broadcast, anycast packets or network broadcast |
| Line 584... | Line 588... | ||
| 584 | || ( !( ~(( dest->s_addr & ( ~ route->netmask.s_addr )) | route->netmask.s_addr ))) |
588 | || ( !( ~(( dest->s_addr & ( ~ route->netmask.s_addr )) | route->netmask.s_addr ))) |
| 585 | || ( !( dest->s_addr & ( ~ route->netmask.s_addr )))){ |
589 | || ( !( dest->s_addr & ( ~ route->netmask.s_addr )))){ |
| 586 | return ip_release_and_return( packet, EINVAL ); |
590 | return ip_release_and_return( packet, EINVAL ); |
| 587 | } |
591 | } |
| 588 | } |
592 | } |
| - | 593 | if( route->address.s_addr == dest->s_addr ){ |
|
| - | 594 | // find the loopback device to deliver |
|
| - | 595 | dest->s_addr = IPV4_LOCALHOST_ADDRESS; |
|
| - | 596 | route = ip_find_route( * dest ); |
|
| - | 597 | netif = route ? route->netif : NULL; |
|
| - | 598 | if( !( netif && route )){ |
|
| - | 599 | fibril_rwlock_read_unlock( & ip_globals.netifs_lock ); |
|
| - | 600 | phone = ip_prepare_icmp_and_get_phone( error, packet, NULL ); |
|
| - | 601 | if( phone >= 0 ){ |
|
| - | 602 | // unreachable ICMP if no routing |
|
| - | 603 | icmp_destination_unreachable_msg( phone, ICMP_HOST_UNREACH, 0, packet ); |
|
| - | 604 | } |
|
| - | 605 | return ENOENT; |
|
| - | 606 | } |
|
| - | 607 | } |
|
| 589 | src = ip_netif_address( netif ); |
608 | src = ip_netif_address( netif ); |
| 590 | if( ! src ){ |
609 | if( ! src ){ |
| 591 | fibril_rwlock_read_unlock( & ip_globals.netifs_lock ); |
610 | fibril_rwlock_read_unlock( & ip_globals.netifs_lock ); |
| 592 | return ip_release_and_return( packet, ENOENT ); |
611 | return ip_release_and_return( packet, ENOENT ); |
| 593 | } |
612 | } |