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Code

minor cleanup for packet socket type filter

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15467 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-04-28 10:59:20 +00:00
parent 307307cb47
commit 0c04ef4bee
2 changed files with 12 additions and 12 deletions
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12
target/linux/generic-2.6/patches-2.6.28/240-packet_socket_type.patch
View File

@ -11,7 +11,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
/* These ones are invisible by user level */ /* These ones are invisible by user level */
#define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */ #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
#define PACKET_FASTROUTE 6 /* Fastrouted frame */ #define PACKET_FASTROUTE 6 /* Fastrouted frame */
+#define PACKET_ANY 0xffffffff +#define PACKET_MASK_ANY 0xffffffff /* mask for packet type bits */
+ +
/* Packet socket options */ /* Packet socket options */
@ -30,7 +30,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
unsigned int tp_hdrlen; unsigned int tp_hdrlen;
unsigned int tp_reserve; unsigned int tp_reserve;
#endif #endif
+ int pkt_type; + unsigned int pkt_type;
}; };
struct packet_skb_cb { struct packet_skb_cb {
@ -95,7 +95,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
spin_lock_init(&po->bind_lock); spin_lock_init(&po->bind_lock);
mutex_init(&po->pg_vec_lock); mutex_init(&po->pg_vec_lock);
po->prot_hook.func = packet_rcv; po->prot_hook.func = packet_rcv;
+ po->pkt_type = PACKET_ANY & ~PACKET_LOOPBACK; + po->pkt_type = PACKET_MASK_ANY & ~PACKET_LOOPBACK;
if (sock->type == SOCK_PACKET) if (sock->type == SOCK_PACKET)
po->prot_hook.func = packet_rcv_spkt; po->prot_hook.func = packet_rcv_spkt;
@ -105,7 +105,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
} }
+ case PACKET_RECV_TYPE: + case PACKET_RECV_TYPE:
+ { + {
+ int val; + unsigned int val;
+ if (optlen != sizeof(val)) + if (optlen != sizeof(val))
+ return -EINVAL; + return -EINVAL;
+ if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_user(&val, optval, sizeof(val)))
@ -121,8 +121,8 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
data = &val; data = &val;
break; break;
+ case PACKET_RECV_TYPE: + case PACKET_RECV_TYPE:
+ if (len > sizeof(int)) + if (len > sizeof(unsigned int))
+ len = sizeof(int); + len = sizeof(unsigned int);
+ val = po->pkt_type; + val = po->pkt_type;
+ +
+ data = &val; + data = &val;

12
target/linux/generic-2.6/patches-2.6.29/240-packet_socket_type.patch
View File

@ -11,7 +11,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
/* These ones are invisible by user level */ /* These ones are invisible by user level */
#define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */ #define PACKET_LOOPBACK 5 /* MC/BRD frame looped back */
#define PACKET_FASTROUTE 6 /* Fastrouted frame */ #define PACKET_FASTROUTE 6 /* Fastrouted frame */
+#define PACKET_ANY 0xffffffff +#define PACKET_MASK_ANY 0xffffffff /* mask for packet type bits */
+ +
/* Packet socket options */ /* Packet socket options */
@ -30,7 +30,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
unsigned int tp_hdrlen; unsigned int tp_hdrlen;
unsigned int tp_reserve; unsigned int tp_reserve;
#endif #endif
+ int pkt_type; + unsigned int pkt_type;
}; };
struct packet_skb_cb { struct packet_skb_cb {
@ -95,7 +95,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
spin_lock_init(&po->bind_lock); spin_lock_init(&po->bind_lock);
mutex_init(&po->pg_vec_lock); mutex_init(&po->pg_vec_lock);
po->prot_hook.func = packet_rcv; po->prot_hook.func = packet_rcv;
+ po->pkt_type = PACKET_ANY & ~PACKET_LOOPBACK; + po->pkt_type = PACKET_MASK_ANY & ~PACKET_LOOPBACK;
if (sock->type == SOCK_PACKET) if (sock->type == SOCK_PACKET)
po->prot_hook.func = packet_rcv_spkt; po->prot_hook.func = packet_rcv_spkt;
@ -105,7 +105,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
} }
+ case PACKET_RECV_TYPE: + case PACKET_RECV_TYPE:
+ { + {
+ int val; + unsigned int val;
+ if (optlen != sizeof(val)) + if (optlen != sizeof(val))
+ return -EINVAL; + return -EINVAL;
+ if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_user(&val, optval, sizeof(val)))
@ -121,8 +121,8 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
data = &val; data = &val;
break; break;
+ case PACKET_RECV_TYPE: + case PACKET_RECV_TYPE:
+ if (len > sizeof(int)) + if (len > sizeof(unsigned int))
+ len = sizeof(int); + len = sizeof(unsigned int);
+ val = po->pkt_type; + val = po->pkt_type;
+ +
+ data = &val; + data = &val;