/*
- * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2008-2013 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
#else /* !IPFW2, good old ipfw */
#include <sys/queue.h>
-#include <sys/types.h> /* u_ types */
+#include <sys/types.h> /* u_ types */
-#define IP_FW_CURRENT_API_VERSION 20 /* Version of this API */
+#define IP_FW_CURRENT_API_VERSION 20 /* Version of this API */
/*
*/
union ip_fw_if {
- struct in_addr fu_via_ip; /* Specified by IP address */
- struct { /* Specified by interface name */
+ struct in_addr fu_via_ip; /* Specified by IP address */
+ struct { /* Specified by interface name */
#define FW_IFNLEN 10 /* need room ! was IFNAMSIZ */
- char name[FW_IFNLEN];
- short unit; /* -1 means match any unit */
- } fu_via_if;
+ char name[FW_IFNLEN];
+ short unit; /* -1 means match any unit */
+ } fu_via_if;
};
/*
*/
struct ip_fw {
- u_int32_t version; /* Version of this structure. Should always be */
- /* set to IP_FW_CURRENT_API_VERSION by clients. */
- void *context; /* Context that is usable by user processes to */
- /* identify this rule. */
- u_int64_t fw_pcnt,fw_bcnt; /* Packet and byte counters */
- struct in_addr fw_src, fw_dst; /* Source and destination IP addr */
- struct in_addr fw_smsk, fw_dmsk; /* Mask for src and dest IP addr */
- u_short fw_number; /* Rule number */
- u_int fw_flg; /* Flags word */
-#define IP_FW_MAX_PORTS 10 /* A reasonable maximum */
+ u_int32_t version; /* Version of this structure. Should always be */
+ /* set to IP_FW_CURRENT_API_VERSION by clients. */
+ void *context; /* Context that is usable by user processes to */
+ /* identify this rule. */
+ u_int64_t fw_pcnt, fw_bcnt; /* Packet and byte counters */
+ struct in_addr fw_src, fw_dst; /* Source and destination IP addr */
+ struct in_addr fw_smsk, fw_dmsk; /* Mask for src and dest IP addr */
+ u_short fw_number; /* Rule number */
+ u_int fw_flg; /* Flags word */
+#define IP_FW_MAX_PORTS 10 /* A reasonable maximum */
union {
- u_short fw_pts[IP_FW_MAX_PORTS]; /* Array of port numbers to match */
-#define IP_FW_ICMPTYPES_MAX 128
-#define IP_FW_ICMPTYPES_DIM (IP_FW_ICMPTYPES_MAX / (sizeof(unsigned) * 8))
- unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */
+ u_short fw_pts[IP_FW_MAX_PORTS]; /* Array of port numbers to match */
+#define IP_FW_ICMPTYPES_MAX 128
+#define IP_FW_ICMPTYPES_DIM (IP_FW_ICMPTYPES_MAX / (sizeof(unsigned) * 8))
+ unsigned fw_icmptypes[IP_FW_ICMPTYPES_DIM]; /* ICMP types bitmap */
} fw_uar;
- u_int fw_ipflg; /* IP flags word */
- u_char fw_ipopt,fw_ipnopt; /* IP options set/unset */
- u_char fw_tcpopt,fw_tcpnopt; /* TCP options set/unset */
- u_char fw_tcpf,fw_tcpnf; /* TCP flags set/unset */
- long timestamp; /* timestamp (tv_sec) of last match */
- union ip_fw_if fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */
- union {
- u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */
- u_short fu_pipe_nr; /* queue number (option DUMMYNET) */
- u_short fu_skipto_rule; /* SKIPTO command rule number */
- u_short fu_reject_code; /* REJECT response code */
- struct sockaddr_in fu_fwd_ip;
- } fw_un;
- u_char fw_prot; /* IP protocol */
+ u_int fw_ipflg; /* IP flags word */
+ u_char fw_ipopt, fw_ipnopt; /* IP options set/unset */
+ u_char fw_tcpopt, fw_tcpnopt; /* TCP options set/unset */
+ u_char fw_tcpf, fw_tcpnf; /* TCP flags set/unset */
+ long timestamp; /* timestamp (tv_sec) of last match */
+ union ip_fw_if fw_in_if, fw_out_if; /* Incoming and outgoing interfaces */
+ union {
+ u_short fu_divert_port; /* Divert/tee port (options IPDIVERT) */
+ u_short fu_pipe_nr; /* queue number (option DUMMYNET) */
+ u_short fu_skipto_rule; /* SKIPTO command rule number */
+ u_short fu_reject_code; /* REJECT response code */
+ struct sockaddr_in fu_fwd_ip;
+ } fw_un;
+ u_char fw_prot; /* IP protocol */
/*
* N'of src ports and # of dst ports in ports array (dst ports
* follow src ports; max of 10 ports in all; count of 0 means
* match all ports)
*/
- u_char fw_nports;
- void *pipe_ptr; /* flow_set ptr for dummynet pipe */
- void *next_rule_ptr ; /* next rule in case of match */
- uid_t fw_uid; /* uid to match */
- int fw_logamount; /* amount to log */
- u_int64_t fw_loghighest; /* highest number packet to log */
+ u_char fw_nports;
+ void *pipe_ptr; /* flow_set ptr for dummynet pipe */
+ void *next_rule_ptr; /* next rule in case of match */
+ uid_t fw_uid; /* uid to match */
+ int fw_logamount; /* amount to log */
+ u_int64_t fw_loghighest; /* highest number packet to log */
};
/*
* extended ipfw structure... some fields in the original struct
* can be used to pass parameters up/down, namely pointers
* void *pipe_ptr
- * void *next_rule_ptr
+ * void *next_rule_ptr
* some others can be used to pass parameters down, namely counters etc.
* u_int64_t fw_pcnt,fw_bcnt;
* long timestamp;
*/
struct ip_fw_ext { /* extended structure */
- struct ip_fw rule; /* must be at offset 0 */
- long dont_match_prob; /* 0x7fffffff means 1.0, always fail */
- u_int dyn_type; /* type for dynamic rule */
+ struct ip_fw rule; /* must be at offset 0 */
+ long dont_match_prob; /* 0x7fffffff means 1.0, always fail */
+ u_int dyn_type;/* type for dynamic rule */
};
-#define IP_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f)
-#define IP_FW_SETNSRCP(rule, n) do { \
- (rule)->fw_nports &= ~0x0f; \
- (rule)->fw_nports |= (n); \
- } while (0)
-#define IP_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4)
-#define IP_FW_SETNDSTP(rule, n) do { \
- (rule)->fw_nports &= ~0xf0; \
- (rule)->fw_nports |= (n) << 4;\
- } while (0)
-
-#define fw_divert_port fw_un.fu_divert_port
-#define fw_skipto_rule fw_un.fu_skipto_rule
-#define fw_reject_code fw_un.fu_reject_code
-#define fw_pipe_nr fw_un.fu_pipe_nr
-#define fw_fwd_ip fw_un.fu_fwd_ip
+#define IP_FW_GETNSRCP(rule) ((rule)->fw_nports & 0x0f)
+#define IP_FW_SETNSRCP(rule, n) do { \
+ (rule)->fw_nports &= ~0x0f; \
+ (rule)->fw_nports |= (n); \
+ } while (0)
+#define IP_FW_GETNDSTP(rule) ((rule)->fw_nports >> 4)
+#define IP_FW_SETNDSTP(rule, n) do { \
+ (rule)->fw_nports &= ~0xf0; \
+ (rule)->fw_nports |= (n) << 4;\
+ } while (0)
+
+#define fw_divert_port fw_un.fu_divert_port
+#define fw_skipto_rule fw_un.fu_skipto_rule
+#define fw_reject_code fw_un.fu_reject_code
+#define fw_pipe_nr fw_un.fu_pipe_nr
+#define fw_fwd_ip fw_un.fu_fwd_ip
struct ip_fw_chain {
LIST_ENTRY(ip_fw_chain) next;
* Flow mask/flow id for each queue.
*/
struct ipfw_flow_id {
- u_int32_t dst_ip, src_ip ;
- u_int16_t dst_port, src_port ;
- u_int8_t proto ;
- u_int8_t flags ; /* protocol-specific flags */
-} ;
+ u_int32_t dst_ip, src_ip;
+ u_int16_t dst_port, src_port;
+ u_int8_t proto;
+ u_int8_t flags; /* protocol-specific flags */
+};
/*
* dynamic ipfw rule
*/
struct ipfw_dyn_rule {
- struct ipfw_dyn_rule *next ;
-
- struct ipfw_flow_id id ;
- struct ipfw_flow_id mask ;
- struct ip_fw_chain *chain ; /* pointer to parent rule */
- u_int32_t type ; /* rule type */
- u_int32_t expire ; /* expire time */
- u_int64_t pcnt, bcnt; /* match counters */
- u_int32_t bucket ; /* which bucket in hash table */
- u_int32_t state ; /* state of this rule (typ. a */
- /* combination of TCP flags) */
-} ;
+ struct ipfw_dyn_rule *next;
+
+ struct ipfw_flow_id id;
+ struct ipfw_flow_id mask;
+ struct ip_fw_chain *chain; /* pointer to parent rule */
+ u_int32_t type; /* rule type */
+ u_int32_t expire; /* expire time */
+ u_int64_t pcnt, bcnt; /* match counters */
+ u_int32_t bucket; /* which bucket in hash table */
+ u_int32_t state; /* state of this rule (typ. a */
+ /* combination of TCP flags) */
+};
/*
* Values for "flags" field .
*/
-#define IP_FW_F_COMMAND 0x000000ff /* Mask for type of chain entry: */
-#define IP_FW_F_DENY 0x00000000 /* This is a deny rule */
-#define IP_FW_F_REJECT 0x00000001 /* Deny and send a response packet */
-#define IP_FW_F_ACCEPT 0x00000002 /* This is an accept rule */
-#define IP_FW_F_COUNT 0x00000003 /* This is a count rule */
-#define IP_FW_F_DIVERT 0x00000004 /* This is a divert rule */
-#define IP_FW_F_TEE 0x00000005 /* This is a tee rule */
-#define IP_FW_F_SKIPTO 0x00000006 /* This is a skipto rule */
-#define IP_FW_F_FWD 0x00000007 /* This is a "change forwarding address" rule */
-#define IP_FW_F_PIPE 0x00000008 /* This is a dummynet rule */
-#define IP_FW_F_QUEUE 0x00000009 /* This is a dummynet queue */
+#define IP_FW_F_COMMAND 0x000000ff /* Mask for type of chain entry: */
+#define IP_FW_F_DENY 0x00000000 /* This is a deny rule */
+#define IP_FW_F_REJECT 0x00000001 /* Deny and send a response packet */
+#define IP_FW_F_ACCEPT 0x00000002 /* This is an accept rule */
+#define IP_FW_F_COUNT 0x00000003 /* This is a count rule */
+#define IP_FW_F_DIVERT 0x00000004 /* This is a divert rule */
+#define IP_FW_F_TEE 0x00000005 /* This is a tee rule */
+#define IP_FW_F_SKIPTO 0x00000006 /* This is a skipto rule */
+#define IP_FW_F_FWD 0x00000007 /* This is a "change forwarding address" rule */
+#define IP_FW_F_PIPE 0x00000008 /* This is a dummynet rule */
+#define IP_FW_F_QUEUE 0x00000009 /* This is a dummynet queue */
-#define IP_FW_F_IN 0x00000100 /* Check inbound packets */
-#define IP_FW_F_OUT 0x00000200 /* Check outbound packets */
-#define IP_FW_F_IIFACE 0x00000400 /* Apply inbound interface test */
-#define IP_FW_F_OIFACE 0x00000800 /* Apply outbound interface test */
+#define IP_FW_F_IN 0x00000100 /* Check inbound packets */
+#define IP_FW_F_OUT 0x00000200 /* Check outbound packets */
+#define IP_FW_F_IIFACE 0x00000400 /* Apply inbound interface test */
+#define IP_FW_F_OIFACE 0x00000800 /* Apply outbound interface test */
-#define IP_FW_F_PRN 0x00001000 /* Print if this rule matches */
+#define IP_FW_F_PRN 0x00001000 /* Print if this rule matches */
-#define IP_FW_F_SRNG 0x00002000 /* The first two src ports are a min *
- * and max range (stored in host byte *
- * order). */
+#define IP_FW_F_SRNG 0x00002000 /* The first two src ports are a min *
+ * and max range (stored in host byte *
+ * order). */
-#define IP_FW_F_DRNG 0x00004000 /* The first two dst ports are a min *
- * and max range (stored in host byte *
- * order). */
+#define IP_FW_F_DRNG 0x00004000 /* The first two dst ports are a min *
+ * and max range (stored in host byte *
+ * order). */
-#define IP_FW_F_FRAG 0x00008000 /* Fragment */
+#define IP_FW_F_FRAG 0x00008000 /* Fragment */
-#define IP_FW_F_IIFNAME 0x00010000 /* In interface by name/unit (not IP) */
-#define IP_FW_F_OIFNAME 0x00020000 /* Out interface by name/unit (not IP) */
+#define IP_FW_F_IIFNAME 0x00010000 /* In interface by name/unit (not IP) */
+#define IP_FW_F_OIFNAME 0x00020000 /* Out interface by name/unit (not IP) */
-#define IP_FW_F_INVSRC 0x00040000 /* Invert sense of src check */
-#define IP_FW_F_INVDST 0x00080000 /* Invert sense of dst check */
+#define IP_FW_F_INVSRC 0x00040000 /* Invert sense of src check */
+#define IP_FW_F_INVDST 0x00080000 /* Invert sense of dst check */
-#define IP_FW_F_ICMPBIT 0x00100000 /* ICMP type bitmap is valid */
+#define IP_FW_F_ICMPBIT 0x00100000 /* ICMP type bitmap is valid */
-#define IP_FW_F_UID 0x00200000 /* filter by uid */
+#define IP_FW_F_UID 0x00200000 /* filter by uid */
-#define IP_FW_F_RND_MATCH 0x00800000 /* probabilistic rule match */
-#define IP_FW_F_SMSK 0x01000000 /* src-port + mask */
-#define IP_FW_F_DMSK 0x02000000 /* dst-port + mask */
-#define IP_FW_BRIDGED 0x04000000 /* only match bridged packets */
-#define IP_FW_F_KEEP_S 0x08000000 /* keep state */
-#define IP_FW_F_CHECK_S 0x10000000 /* check state */
+#define IP_FW_F_RND_MATCH 0x00800000 /* probabilistic rule match */
+#define IP_FW_F_SMSK 0x01000000 /* src-port + mask */
+#define IP_FW_F_DMSK 0x02000000 /* dst-port + mask */
+#define IP_FW_BRIDGED 0x04000000 /* only match bridged packets */
+#define IP_FW_F_KEEP_S 0x08000000 /* keep state */
+#define IP_FW_F_CHECK_S 0x10000000 /* check state */
-#define IP_FW_F_SME 0x20000000 /* source = me */
-#define IP_FW_F_DME 0x40000000 /* destination = me */
+#define IP_FW_F_SME 0x20000000 /* source = me */
+#define IP_FW_F_DME 0x40000000 /* destination = me */
-#define IP_FW_F_MASK 0x7FFFFFFF /* All possible flag bits mask */
+#define IP_FW_F_MASK 0x7FFFFFFF /* All possible flag bits mask */
/*
* Flags for the 'fw_ipflg' field, for comparing values of ip and its protocols.
*/
-#define IP_FW_IF_TCPEST 0x00000020 /* established TCP connection */
-#define IP_FW_IF_TCPMSK 0x00000020 /* mask of all TCP values */
+#define IP_FW_IF_TCPEST 0x00000020 /* established TCP connection */
+#define IP_FW_IF_TCPMSK 0x00000020 /* mask of all TCP values */
/*
* For backwards compatibility with rules specifying "via iface" but
* of bits to represent this configuration.
*/
-#define IF_FW_F_VIAHACK (IP_FW_F_IN|IP_FW_F_OUT|IP_FW_F_IIFACE|IP_FW_F_OIFACE)
+#define IF_FW_F_VIAHACK (IP_FW_F_IN|IP_FW_F_OUT|IP_FW_F_IIFACE|IP_FW_F_OIFACE)
/*
* Definitions for REJECT response codes.
* Values less than 256 correspond to ICMP unreachable codes.
*/
-#define IP_FW_REJECT_RST 0x0100 /* TCP packets: send RST */
+#define IP_FW_REJECT_RST 0x0100 /* TCP packets: send RST */
/*
* Definitions for IP option names.
*/
-#define IP_FW_IPOPT_LSRR 0x01
-#define IP_FW_IPOPT_SSRR 0x02
-#define IP_FW_IPOPT_RR 0x04
-#define IP_FW_IPOPT_TS 0x08
+#define IP_FW_IPOPT_LSRR 0x01
+#define IP_FW_IPOPT_SSRR 0x02
+#define IP_FW_IPOPT_RR 0x04
+#define IP_FW_IPOPT_TS 0x08
/*
* Definitions for TCP option names.
*/
-#define IP_FW_TCPOPT_MSS 0x01
-#define IP_FW_TCPOPT_WINDOW 0x02
-#define IP_FW_TCPOPT_SACK 0x04
-#define IP_FW_TCPOPT_TS 0x08
-#define IP_FW_TCPOPT_CC 0x10
+#define IP_FW_TCPOPT_MSS 0x01
+#define IP_FW_TCPOPT_WINDOW 0x02
+#define IP_FW_TCPOPT_SACK 0x04
+#define IP_FW_TCPOPT_TS 0x08
+#define IP_FW_TCPOPT_CC 0x10
/*
* Definitions for TCP flags.
*/
-#define IP_FW_TCPF_FIN TH_FIN
-#define IP_FW_TCPF_SYN TH_SYN
-#define IP_FW_TCPF_RST TH_RST
-#define IP_FW_TCPF_PSH TH_PUSH
-#define IP_FW_TCPF_ACK TH_ACK
-#define IP_FW_TCPF_URG TH_URG
+#define IP_FW_TCPF_FIN TH_FIN
+#define IP_FW_TCPF_SYN TH_SYN
+#define IP_FW_TCPF_RST TH_RST
+#define IP_FW_TCPF_PSH TH_PUSH
+#define IP_FW_TCPF_ACK TH_ACK
+#define IP_FW_TCPF_URG TH_URG
/*
* Main firewall chains definitions and global var's definitions.
*/
-#ifdef KERNEL_PRIVATE
+#ifdef BSD_KERNEL_PRIVATE
-#define IP_FW_PORT_DYNT_FLAG 0x10000
-#define IP_FW_PORT_TEE_FLAG 0x20000
-#define IP_FW_PORT_DENY_FLAG 0x40000
+#define IP_FW_PORT_DYNT_FLAG 0x10000
+#define IP_FW_PORT_TEE_FLAG 0x20000
+#define IP_FW_PORT_DENY_FLAG 0x40000
/*
* Function definitions.
/* Firewall hooks */
struct ip;
struct sockopt;
-typedef int ip_fw_chk_t(struct ip **, int, struct ifnet *, u_int16_t *,
- struct mbuf **, struct ip_fw_chain **, struct sockaddr_in **);
-typedef int ip_fw_ctl_t(struct sockopt *);
-extern ip_fw_chk_t *ip_fw_chk_ptr;
-extern ip_fw_ctl_t *ip_fw_ctl_ptr;
+typedef int ip_fw_chk_t(struct ip **, int, struct ifnet *, u_int16_t *,
+ struct mbuf **, struct ip_fw_chain **, struct sockaddr_in **);
+typedef int ip_fw_ctl_t(struct sockopt *);
+extern ip_fw_chk_t *ip_fw_chk_ptr;
+extern ip_fw_ctl_t *ip_fw_ctl_ptr;
extern int fw_one_pass;
extern int fw_enable;
#define IPFW_LOADED (ip_fw_chk_ptr != NULL)
-extern struct ipfw_flow_id last_pkt ;
-#endif /* KERNEL_PRIVATE */
+extern struct ipfw_flow_id last_pkt;
+#endif /* BSD_KERNEL_PRIVATE */
#endif /* !IPFW2 */
#endif /* __APPLE_API_OBSOLETE */
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