--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1998-2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: buffer.h,v 1.39.12.2 2004/03/08 09:04:51 marka Exp $ */
+
+#ifndef ISC_BUFFER_H
+#define ISC_BUFFER_H 1
+
+/*****
+ ***** Module Info
+ *****/
+
+/*
+ * Buffers
+ *
+ * A buffer is a region of memory, together with a set of related subregions.
+ * Buffers are used for parsing and I/O operations.
+ *
+ * The 'used region' and the 'available' region are disjoint, and their
+ * union is the buffer's region. The used region extends from the beginning
+ * of the buffer region to the last used byte. The available region
+ * extends from one byte greater than the last used byte to the end of the
+ * buffer's region. The size of the used region can be changed using various
+ * buffer commands. Initially, the used region is empty.
+ *
+ * The used region is further subdivided into two disjoint regions: the
+ * 'consumed region' and the 'remaining region'. The union of these two
+ * regions is the used region. The consumed region extends from the beginning
+ * of the used region to the byte before the 'current' offset (if any). The
+ * 'remaining' region the current pointer to the end of the used
+ * region. The size of the consumed region can be changed using various
+ * buffer commands. Initially, the consumed region is empty.
+ *
+ * The 'active region' is an (optional) subregion of the remaining region.
+ * It extends from the current offset to an offset in the remaining region
+ * that is selected with isc_buffer_setactive(). Initially, the active region
+ * is empty. If the current offset advances beyond the chosen offset, the
+ * active region will also be empty.
+ *
+ * /------------entire length---------------\
+ * /----- used region -----\/-- available --\
+ * +----------------------------------------+
+ * | consumed | remaining | |
+ * +----------------------------------------+
+ * a b c d e
+ *
+ * a == base of buffer.
+ * b == current pointer. Can be anywhere between a and d.
+ * c == active pointer. Meaningful between b and d.
+ * d == used pointer.
+ * e == length of buffer.
+ *
+ * a-e == entire length of buffer.
+ * a-d == used region.
+ * a-b == consumed region.
+ * b-d == remaining region.
+ * b-c == optional active region.
+ *
+ * The following invariants are maintained by all routines:
+ *
+ * length > 0
+ *
+ * base is a valid pointer to length bytes of memory
+ *
+ * 0 <= used <= length
+ *
+ * 0 <= current <= used
+ *
+ * 0 <= active <= used
+ * (although active < current implies empty active region)
+ *
+ * MP:
+ * Buffers have no synchronization. Clients must ensure exclusive
+ * access.
+ *
+ * Reliability:
+ * No anticipated impact.
+ *
+ * Resources:
+ * Memory: 1 pointer + 6 unsigned integers per buffer.
+ *
+ * Security:
+ * No anticipated impact.
+ *
+ * Standards:
+ * None.
+ */
+
+/***
+ *** Imports
+ ***/
+
+#include <isc/lang.h>
+#include <isc/magic.h>
+#include <isc/types.h>
+
+/*
+ * To make many functions be inline macros (via #define) define this.
+ * If it is undefined, a function will be used.
+ */
+/* #define ISC_BUFFER_USEINLINE */
+
+ISC_LANG_BEGINDECLS
+
+/***
+ *** Magic numbers
+ ***/
+#define ISC_BUFFER_MAGIC 0x42756621U /* Buf!. */
+#define ISC_BUFFER_VALID(b) ISC_MAGIC_VALID(b, ISC_BUFFER_MAGIC)
+
+/*
+ * The following macros MUST be used only on valid buffers. It is the
+ * caller's responsibility to ensure this by using the ISC_BUFFER_VALID
+ * check above, or by calling another isc_buffer_*() function (rather than
+ * another macro.)
+ */
+
+/*
+ * Fundamental buffer elements. (A through E in the introductory comment.)
+ */
+#define isc_buffer_base(b) ((void *)(b)->base) /*a*/
+#define isc_buffer_current(b) \
+ ((void *)((unsigned char *)(b)->base + (b)->current)) /*b*/
+#define isc_buffer_active(b) \
+ ((void *)((unsigned char *)(b)->base + (b)->active)) /*c*/
+#define isc_buffer_used(b) \
+ ((void *)((unsigned char *)(b)->base + (b)->used)) /*d*/
+#define isc_buffer_length(b) ((b)->length) /*e*/
+
+/*
+ * Derived lengths. (Described in the introductory comment.)
+ */
+#define isc_buffer_usedlength(b) ((b)->used) /* d-a */
+#define isc_buffer_consumedlength(b) ((b)->current) /* b-a */
+#define isc_buffer_remaininglength(b) ((b)->used - (b)->current) /* d-b */
+#define isc_buffer_activelength(b) ((b)->active - (b)->current) /* c-b */
+#define isc_buffer_availablelength(b) ((b)->length - (b)->used) /* e-d */
+
+/*
+ * Note that the buffer structure is public. This is principally so buffer
+ * operations can be implemented using macros. Applications are strongly
+ * discouraged from directly manipulating the structure.
+ */
+
+struct isc_buffer {
+ unsigned int magic;
+ void *base;
+ /* The following integers are byte offsets from 'base'. */
+ unsigned int length;
+ unsigned int used;
+ unsigned int current;
+ unsigned int active;
+ /* linkable */
+ ISC_LINK(isc_buffer_t) link;
+ /* private internal elements */
+ isc_mem_t *mctx;
+};
+
+/***
+ *** Functions
+ ***/
+
+isc_result_t
+isc_buffer_allocate(isc_mem_t *mctx, isc_buffer_t **dynbuffer,
+ unsigned int length);
+/*
+ * Allocate a dynamic linkable buffer which has "length" bytes in the
+ * data region.
+ *
+ * Requires:
+ * "mctx" is valid.
+ *
+ * "dynbuffer" is non-NULL, and "*dynbuffer" is NULL.
+ *
+ * Returns:
+ * ISC_R_SUCCESS - success
+ * ISC_R_NOMEMORY - no memory available
+ *
+ * Note:
+ * Changing the buffer's length field is not permitted.
+ */
+
+void
+isc_buffer_free(isc_buffer_t **dynbuffer);
+/*
+ * Release resources allocated for a dynamic buffer.
+ *
+ * Requires:
+ * "dynbuffer" is not NULL.
+ *
+ * "*dynbuffer" is a valid dynamic buffer.
+ *
+ * Ensures:
+ * "*dynbuffer" will be NULL on return, and all memory associated with
+ * the dynamic buffer is returned to the memory context used in
+ * isc_buffer_allocate().
+ */
+
+void
+isc__buffer_init(isc_buffer_t *b, const void *base, unsigned int length);
+/*
+ * Make 'b' refer to the 'length'-byte region starting at base.
+ *
+ * Requires:
+ *
+ * 'length' > 0
+ *
+ * 'base' is a pointer to a sequence of 'length' bytes.
+ *
+ */
+
+void
+isc__buffer_invalidate(isc_buffer_t *b);
+/*
+ * Make 'b' an invalid buffer.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * Ensures:
+ * If assertion checking is enabled, future attempts to use 'b' without
+ * calling isc_buffer_init() on it will cause an assertion failure.
+ */
+
+void
+isc__buffer_region(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_usedregion(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the used region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_availableregion(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the available region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_add(isc_buffer_t *b, unsigned int n);
+/*
+ * Increase the 'used' region of 'b' by 'n' bytes.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * used + n <= length
+ *
+ */
+
+void
+isc__buffer_subtract(isc_buffer_t *b, unsigned int n);
+/*
+ * Decrease the 'used' region of 'b' by 'n' bytes.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * used >= n
+ *
+ */
+
+void
+isc__buffer_clear(isc_buffer_t *b);
+/*
+ * Make the used region empty.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * Ensures:
+ *
+ * used = 0
+ *
+ */
+
+void
+isc__buffer_consumedregion(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the consumed region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_remainingregion(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the remaining region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_activeregion(isc_buffer_t *b, isc_region_t *r);
+/*
+ * Make 'r' refer to the active region of 'b'.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * 'r' points to a region structure.
+ */
+
+void
+isc__buffer_setactive(isc_buffer_t *b, unsigned int n);
+/*
+ * Sets the end of the active region 'n' bytes after current.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * current + n <= used
+ */
+
+void
+isc__buffer_first(isc_buffer_t *b);
+/*
+ * Make the consumed region empty.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * Ensures:
+ *
+ * current == 0
+ *
+ */
+
+void
+isc__buffer_forward(isc_buffer_t *b, unsigned int n);
+/*
+ * Increase the 'consumed' region of 'b' by 'n' bytes.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * current + n <= used
+ *
+ */
+
+void
+isc__buffer_back(isc_buffer_t *b, unsigned int n);
+/*
+ * Decrease the 'consumed' region of 'b' by 'n' bytes.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * n <= current
+ *
+ */
+
+void
+isc_buffer_compact(isc_buffer_t *b);
+/*
+ * Compact the used region by moving the remaining region so it occurs
+ * at the start of the buffer. The used region is shrunk by the size of
+ * the consumed region, and the consumed region is then made empty.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer
+ *
+ * Ensures:
+ *
+ * current == 0
+ *
+ * The size of the used region is now equal to the size of the remaining
+ * region (as it was before the call). The contents of the used region
+ * are those of the remaining region (as it was before the call).
+ */
+
+isc_uint8_t
+isc_buffer_getuint8(isc_buffer_t *b);
+/*
+ * Read an unsigned 8-bit integer from 'b' and return it.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * The length of the available region of 'b' is at least 1.
+ *
+ * Ensures:
+ *
+ * The current pointer in 'b' is advanced by 1.
+ *
+ * Returns:
+ *
+ * A 8-bit unsigned integer.
+ */
+
+void
+isc__buffer_putuint8(isc_buffer_t *b, isc_uint8_t val);
+/*
+ * Store an unsigned 8-bit integer from 'val' into 'b'.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * The length of the unused region of 'b' is at least 1.
+ *
+ * Ensures:
+ * The used pointer in 'b' is advanced by 1.
+ */
+
+isc_uint16_t
+isc_buffer_getuint16(isc_buffer_t *b);
+/*
+ * Read an unsigned 16-bit integer in network byte order from 'b', convert
+ * it to host byte order, and return it.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * The length of the available region of 'b' is at least 2.
+ *
+ * Ensures:
+ *
+ * The current pointer in 'b' is advanced by 2.
+ *
+ * Returns:
+ *
+ * A 16-bit unsigned integer.
+ */
+
+void
+isc__buffer_putuint16(isc_buffer_t *b, isc_uint16_t val);
+/*
+ * Store an unsigned 16-bit integer in host byte order from 'val'
+ * into 'b' in network byte order.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * The length of the unused region of 'b' is at least 2.
+ *
+ * Ensures:
+ * The used pointer in 'b' is advanced by 2.
+ */
+
+isc_uint32_t
+isc_buffer_getuint32(isc_buffer_t *b);
+/*
+ * Read an unsigned 32-bit integer in network byte order from 'b', convert
+ * it to host byte order, and return it.
+ *
+ * Requires:
+ *
+ * 'b' is a valid buffer.
+ *
+ * The length of the available region of 'b' is at least 4.
+ *
+ * Ensures:
+ *
+ * The current pointer in 'b' is advanced by 4.
+ *
+ * Returns:
+ *
+ * A 32-bit unsigned integer.
+ */
+
+void
+isc__buffer_putuint32(isc_buffer_t *b, isc_uint32_t val);
+/*
+ * Store an unsigned 32-bit integer in host byte order from 'val'
+ * into 'b' in network byte order.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * The length of the unused region of 'b' is at least 4.
+ *
+ * Ensures:
+ * The used pointer in 'b' is advanced by 4.
+ */
+
+void
+isc__buffer_putmem(isc_buffer_t *b, const unsigned char *base,
+ unsigned int length);
+/*
+ * Copy 'length' bytes of memory at 'base' into 'b'.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * 'base' points to 'length' bytes of valid memory.
+ *
+ */
+
+void
+isc__buffer_putstr(isc_buffer_t *b, const char *source);
+/*
+ * Copy 'source' into 'b', not including terminating NUL.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * 'source' to be a valid NULL terminated string.
+ *
+ * strlen(source) <= isc_buffer_available(b)
+ */
+
+isc_result_t
+isc_buffer_copyregion(isc_buffer_t *b, const isc_region_t *r);
+/*
+ * Copy the contents of 'r' into 'b'.
+ *
+ * Requires:
+ * 'b' is a valid buffer.
+ *
+ * 'r' is a valid region.
+ *
+ * Returns:
+ *
+ * ISC_R_SUCCESS
+ * ISC_R_NOSPACE The available region of 'b' is not
+ * big enough.
+ */
+
+ISC_LANG_ENDDECLS
+
+/*
+ * Inline macro versions of the functions. These should never be called
+ * directly by an application, but will be used by the functions within
+ * buffer.c. The callers should always use "isc_buffer_*()" names, never
+ * ones beginning with "isc__"
+ */
+
+/*
+ * XXXDCL Something more could be done with initializing buffers that
+ * point to const data. For example, a new function, isc_buffer_initconst,
+ * could be used, and a new boolean flag in the buffer structure could
+ * indicate whether the buffer was initialized with that function.
+ * (isc_bufer_init itself would be reprototyped to *not* have its "base"
+ * parameter be const.) Then if the boolean were true, the isc_buffer_put*
+ * functions could assert a contractual requirement for a non-const buffer.
+ * One drawback is that the isc_buffer_* functions (macros) that return
+ * pointers would still need to return non-const pointers to avoid compiler
+ * warnings, so it would be up to code that uses them to have to deal
+ * with the possibility that the buffer was initialized as const --
+ * a problem that they *already* have to deal with but have absolutely
+ * no ability to. With a new isc_buffer_isconst() function returning
+ * true/false, they could at least assert a contractual requirement for
+ * non-const buffers when needed.
+ */
+#define ISC__BUFFER_INIT(_b, _base, _length) \
+ do { \
+ union { \
+ const void * konst; \
+ void * var; \
+ } _u; \
+ _u.konst = (_base); \
+ (_b)->base = _u.var; \
+ (_b)->length = (_length); \
+ (_b)->used = 0; \
+ (_b)->current = 0; \
+ (_b)->active = 0; \
+ (_b)->mctx = NULL; \
+ ISC_LINK_INIT(_b, link); \
+ (_b)->magic = ISC_BUFFER_MAGIC; \
+ } while (0)
+
+#define ISC__BUFFER_INVALIDATE(_b) \
+ do { \
+ (_b)->magic = 0; \
+ (_b)->base = NULL; \
+ (_b)->length = 0; \
+ (_b)->used = 0; \
+ (_b)->current = 0; \
+ (_b)->active = 0; \
+ } while (0)
+
+#define ISC__BUFFER_REGION(_b, _r) \
+ do { \
+ (_r)->base = (_b)->base; \
+ (_r)->length = (_b)->length; \
+ } while (0)
+
+#define ISC__BUFFER_USEDREGION(_b, _r) \
+ do { \
+ (_r)->base = (_b)->base; \
+ (_r)->length = (_b)->used; \
+ } while (0)
+
+#define ISC__BUFFER_AVAILABLEREGION(_b, _r) \
+ do { \
+ (_r)->base = isc_buffer_used(_b); \
+ (_r)->length = isc_buffer_availablelength(_b); \
+ } while (0)
+
+#define ISC__BUFFER_ADD(_b, _n) \
+ do { \
+ (_b)->used += (_n); \
+ } while (0)
+
+#define ISC__BUFFER_SUBTRACT(_b, _n) \
+ do { \
+ (_b)->used -= (_n); \
+ if ((_b)->current > (_b)->used) \
+ (_b)->current = (_b)->used; \
+ if ((_b)->active > (_b)->used) \
+ (_b)->active = (_b)->used; \
+ } while (0)
+
+#define ISC__BUFFER_CLEAR(_b) \
+ do { \
+ (_b)->used = 0; \
+ (_b)->current = 0; \
+ (_b)->active = 0; \
+ } while (0)
+
+#define ISC__BUFFER_CONSUMEDREGION(_b, _r) \
+ do { \
+ (_r)->base = (_b)->base; \
+ (_r)->length = (_b)->current; \
+ } while (0)
+
+#define ISC__BUFFER_REMAININGREGION(_b, _r) \
+ do { \
+ (_r)->base = isc_buffer_current(_b); \
+ (_r)->length = isc_buffer_remaininglength(_b); \
+ } while (0)
+
+#define ISC__BUFFER_ACTIVEREGION(_b, _r) \
+ do { \
+ if ((_b)->current < (_b)->active) { \
+ (_r)->base = isc_buffer_current(_b); \
+ (_r)->length = isc_buffer_activelength(_b); \
+ } else { \
+ (_r)->base = NULL; \
+ (_r)->length = 0; \
+ } \
+ } while (0)
+
+#define ISC__BUFFER_SETACTIVE(_b, _n) \
+ do { \
+ (_b)->active = (_b)->current + (_n); \
+ } while (0)
+
+#define ISC__BUFFER_FIRST(_b) \
+ do { \
+ (_b)->current = 0; \
+ } while (0)
+
+#define ISC__BUFFER_FORWARD(_b, _n) \
+ do { \
+ (_b)->current += (_n); \
+ } while (0)
+
+#define ISC__BUFFER_BACK(_b, _n) \
+ do { \
+ (_b)->current -= (_n); \
+ } while (0)
+
+#define ISC__BUFFER_PUTMEM(_b, _base, _length) \
+ do { \
+ memcpy(isc_buffer_used(_b), (_base), (_length)); \
+ (_b)->used += (_length); \
+ } while (0)
+
+#define ISC__BUFFER_PUTSTR(_b, _source) \
+ do { \
+ unsigned int _length; \
+ unsigned char *_cp; \
+ _length = strlen(_source); \
+ _cp = isc_buffer_used(_b); \
+ memcpy(_cp, (_source), _length); \
+ (_b)->used += (_length); \
+ } while (0)
+
+#define ISC__BUFFER_PUTUINT8(_b, _val) \
+ do { \
+ unsigned char *_cp; \
+ isc_uint8_t _val2 = (_val); \
+ _cp = isc_buffer_used(_b); \
+ (_b)->used++; \
+ _cp[0] = _val2 & 0x00ff; \
+ } while (0)
+
+#define ISC__BUFFER_PUTUINT16(_b, _val) \
+ do { \
+ unsigned char *_cp; \
+ isc_uint16_t _val2 = (_val); \
+ _cp = isc_buffer_used(_b); \
+ (_b)->used += 2; \
+ _cp[0] = (unsigned char)((_val2 & 0xff00U) >> 8); \
+ _cp[1] = (unsigned char)(_val2 & 0x00ffU); \
+ } while (0)
+
+#define ISC__BUFFER_PUTUINT32(_b, _val) \
+ do { \
+ unsigned char *_cp; \
+ isc_uint32_t _val2 = (_val); \
+ _cp = isc_buffer_used(_b); \
+ (_b)->used += 4; \
+ _cp[0] = (unsigned char)((_val2 & 0xff000000) >> 24); \
+ _cp[1] = (unsigned char)((_val2 & 0x00ff0000) >> 16); \
+ _cp[2] = (unsigned char)((_val2 & 0x0000ff00) >> 8); \
+ _cp[3] = (unsigned char)((_val2 & 0x000000ff)); \
+ } while (0)
+
+#if defined(ISC_BUFFER_USEINLINE)
+#define isc_buffer_init ISC__BUFFER_INIT
+#define isc_buffer_invalidate ISC__BUFFER_INVALIDATE
+#define isc_buffer_region ISC__BUFFER_REGION
+#define isc_buffer_usedregion ISC__BUFFER_USEDREGION
+#define isc_buffer_availableregion ISC__BUFFER_AVAILABLEREGION
+#define isc_buffer_add ISC__BUFFER_ADD
+#define isc_buffer_subtract ISC__BUFFER_SUBTRACT
+#define isc_buffer_clear ISC__BUFFER_CLEAR
+#define isc_buffer_consumedregion ISC__BUFFER_CONSUMEDREGION
+#define isc_buffer_remainingregion ISC__BUFFER_REMAININGREGION
+#define isc_buffer_activeregion ISC__BUFFER_ACTIVEREGION
+#define isc_buffer_setactive ISC__BUFFER_SETACTIVE
+#define isc_buffer_first ISC__BUFFER_FIRST
+#define isc_buffer_forward ISC__BUFFER_FORWARD
+#define isc_buffer_back ISC__BUFFER_BACK
+#define isc_buffer_putmem ISC__BUFFER_PUTMEM
+#define isc_buffer_putstr ISC__BUFFER_PUTSTR
+#define isc_buffer_putuint8 ISC__BUFFER_PUTUINT8
+#define isc_buffer_putuint16 ISC__BUFFER_PUTUINT16
+#define isc_buffer_putuint32 ISC__BUFFER_PUTUINT32
+#else
+#define isc_buffer_init isc__buffer_init
+#define isc_buffer_invalidate isc__buffer_invalidate
+#define isc_buffer_region isc__buffer_region
+#define isc_buffer_usedregion isc__buffer_usedregion
+#define isc_buffer_availableregion isc__buffer_availableregion
+#define isc_buffer_add isc__buffer_add
+#define isc_buffer_subtract isc__buffer_subtract
+#define isc_buffer_clear isc__buffer_clear
+#define isc_buffer_consumedregion isc__buffer_consumedregion
+#define isc_buffer_remainingregion isc__buffer_remainingregion
+#define isc_buffer_activeregion isc__buffer_activeregion
+#define isc_buffer_setactive isc__buffer_setactive
+#define isc_buffer_first isc__buffer_first
+#define isc_buffer_forward isc__buffer_forward
+#define isc_buffer_back isc__buffer_back
+#define isc_buffer_putmem isc__buffer_putmem
+#define isc_buffer_putstr isc__buffer_putstr
+#define isc_buffer_putuint8 isc__buffer_putuint8
+#define isc_buffer_putuint16 isc__buffer_putuint16
+#define isc_buffer_putuint32 isc__buffer_putuint32
+#endif
+
+#endif /* ISC_BUFFER_H */
/*
- * Copyright (C) 1999-2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2003 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: net.h,v 1.34 2002/04/03 06:38:38 marka Exp $ */
+/* $Id: net.h,v 1.31.2.2.10.8 2004/04/29 01:31:23 marka Exp $ */
#ifndef ISC_NET_H
#define ISC_NET_H 1
#include <sys/types.h>
#include <sys/socket.h> /* Contractual promise. */
+#include <net/if.h>
+
#include <netinet/in.h> /* Contractual promise. */
#include <arpa/inet.h> /* Contractual promise. */
#ifdef ISC_PLATFORM_NEEDNETINETIN6H
(((isc_uint32_t)(i) & ISC__IPADDR(0xf0000000)) \
== ISC__IPADDR(0xe0000000))
+#define ISC_IPADDR_ISEXPERIMENTAL(i) \
+ (((isc_uint32_t)(i) & ISC__IPADDR(0xf0000000)) \
+ == ISC__IPADDR(0xf0000000))
+
/***
*** Functions.
***/
*
* ISC_R_SUCCESS IPv4 is supported.
* ISC_R_NOTFOUND IPv4 is not supported.
+ * ISC_R_DISABLED IPv4 is disabled.
* ISC_R_UNEXPECTED
*/
*
* ISC_R_SUCCESS IPv6 is supported.
* ISC_R_NOTFOUND IPv6 is not supported.
+ * ISC_R_DISABLED IPv6 is disabled.
+ * ISC_R_UNEXPECTED
+ */
+
+isc_result_t
+isc_net_probe_ipv6only(void);
+/*
+ * Check if the system's kernel supports the IPV6_V6ONLY socket option.
+ *
+ * Returns:
+ *
+ * ISC_R_SUCCESS the option is supported for both TCP and UDP.
+ * ISC_R_NOTFOUND IPv6 itself or the option is not supported.
+ * ISC_R_UNEXPECTED
+ */
+
+isc_result_t
+isc_net_probe_ipv6pktinfo(void);
+/*
+ * Check if the system's kernel supports the IPV6_(RECV)PKTINFO socket option
+ * for UDP sockets.
+ *
+ * Returns:
+ *
+ * ISC_R_SUCCESS the option is supported.
+ * ISC_R_NOTFOUND IPv6 itself or the option is not supported.
* ISC_R_UNEXPECTED
*/
+void
+isc_net_disableipv4(void);
+
+void
+isc_net_disableipv6(void);
+
+void
+isc_net_enableipv4(void);
+
+void
+isc_net_enableipv6(void);
+
+#ifdef ISC_PLATFORM_NEEDNTOP
const char *
isc_net_ntop(int af, const void *src, char *dst, size_t size);
#ifdef ISC_PLATFORM_NEEDNTOP
/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1998-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: netaddr.h,v 1.21 2002/04/03 06:38:35 marka Exp $ */
+/* $Id: netaddr.h,v 1.18.12.7 2004/03/08 09:04:52 marka Exp $ */
#ifndef ISC_NETADDR_H
#define ISC_NETADDR_H 1
#include <isc/lang.h>
#include <isc/net.h>
#include <isc/types.h>
-#include "ntp_rfc2553.h"
-
-
ISC_LANG_BEGINDECLS
struct in_addr in;
struct in6_addr in6;
} type;
+ isc_uint32_t zone;
};
isc_boolean_t
void
isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6);
+void
+isc_netaddr_setzone(isc_netaddr_t *netaddr, isc_uint32_t zone);
+
+isc_uint32_t
+isc_netaddr_getzone(const isc_netaddr_t *netaddr);
+
void
isc_netaddr_any(isc_netaddr_t *netaddr);
/*
* Returns ISC_TRUE if the address is a multicast address.
*/
+isc_boolean_t
+isc_netaddr_isexperimental(isc_netaddr_t *na);
+/*
+ * Returns ISC_TRUE if the address is a experimental (CLASS E) address.
+ */
+
isc_boolean_t
isc_netaddr_islinklocal(isc_netaddr_t *na);
/*
--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: netscope.h,v 1.4.142.5 2004/03/08 09:04:52 marka Exp $ */
+
+#ifndef ISC_NETSCOPE_H
+#define ISC_NETSCOPE_H 1
+
+ISC_LANG_BEGINDECLS
+
+/*
+ * Convert a string of an IPv6 scope zone to zone index. If the conversion
+ * succeeds, 'zoneid' will store the index value.
+ * XXXJT: when a standard interface for this purpose is defined,
+ * we should use it.
+ *
+ * Returns:
+ * ISC_R_SUCCESS: conversion succeeds
+ * ISC_R_FAILURE: conversion fails
+ */
+isc_result_t
+isc_netscope_pton(int af, char *scopename, void *addr, isc_uint32_t *zoneid);
+
+ISC_LANG_ENDDECLS
+
+#endif /* ISC_NETADDR_H */
--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1998-2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: region.h,v 1.16.12.3 2004/03/08 09:04:53 marka Exp $ */
+
+#ifndef ISC_REGION_H
+#define ISC_REGION_H 1
+
+#include <isc/types.h>
+
+struct isc_region {
+ unsigned char * base;
+ unsigned int length;
+};
+
+struct isc_textregion {
+ char * base;
+ unsigned int length;
+};
+
+/* XXXDCL questionable ... bears discussion. we have been putting off
+ * discussing the region api.
+ */
+struct isc_constregion {
+ const void * base;
+ unsigned int length;
+};
+
+struct isc_consttextregion {
+ const char * base;
+ unsigned int length;
+};
+
+/*
+ * The region structure is not opaque, and is usually directly manipulated.
+ * Some macros are defined below for convenience.
+ */
+
+#define isc_region_consume(r,l) \
+ do { \
+ isc_region_t *_r = (r); \
+ unsigned int _l = (l); \
+ INSIST(_r->length >= _l); \
+ _r->base += _l; \
+ _r->length -= _l; \
+ } while (0)
+
+#define isc_textregion_consume(r,l) \
+ do { \
+ isc_textregion_t *_r = (r); \
+ unsigned int _l = (l); \
+ INSIST(_r->length >= _l); \
+ _r->base += _l; \
+ _r->length -= _l; \
+ } while (0)
+
+#define isc_constregion_consume(r,l) \
+ do { \
+ isc_constregion_t *_r = (r); \
+ unsigned int _l = (l); \
+ INSIST(_r->length >= _l); \
+ _r->base += _l; \
+ _r->length -= _l; \
+ } while (0)
+
+int
+isc_region_compare(isc_region_t *r1, isc_region_t *r2);
+/*
+ * Compares the contents of two regions
+ *
+ * Requires:
+ * 'r1' is a valid region
+ * 'r2' is a valid region
+ *
+ * Returns:
+ * < 0 if r1 is lexicographically less than r2
+ * = 0 if r1 is lexicographically identical to r2
+ * > 0 if r1 is lexicographically greater than r2
+ */
+
+#endif /* ISC_REGION_H */
/*
- * Copyright (C) 1998-2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1998-2001, 2003 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: result.h,v 1.59 2001/11/30 01:02:17 gson Exp $ */
+/* $Id: result.h,v 1.57.2.2.8.5 2004/05/15 03:46:13 jinmei Exp $ */
#ifndef ISC_RESULT_H
#define ISC_RESULT_H 1
#define ISC_R_CONNECTIONRESET 54 /* connection reset */
#define ISC_R_SOFTQUOTA 55 /* soft quota reached */
#define ISC_R_BADNUMBER 56 /* not a valid number */
+#define ISC_R_DISABLED 57 /* disabled */
+#define ISC_R_MAXSIZE 58 /* max size */
+#define ISC_R_BADADDRESSFORM 59 /* invalid address format */
/*
* Not a result code: the number of results.
*/
-#define ISC_R_NRESULTS 57
+#define ISC_R_NRESULTS 60
ISC_LANG_BEGINDECLS
* Returns ISC_TRUE if the address is a multicast address.
*/
+isc_boolean_t
+isc_sockaddr_isexperimental(isc_sockaddr_t *sa);
+/*
+ * Returns ISC_TRUE if the address is a experimental (CLASS E) address.
+ */
+
isc_boolean_t
isc_sockaddr_islinklocal(isc_sockaddr_t *sa);
/*
/*
- * Copyright (C) 1999-2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2003 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: net.c,v 1.25 2001/11/30 01:59:45 gson Exp $ */
+/* $Id: net.c,v 1.22.2.2.10.7 2004/04/29 01:31:22 marka Exp $ */
#include <config.h>
#include <unistd.h>
#include <isc/net.h>
+#include <isc/once.h>
#include <isc/strerror.h>
#include <isc/string.h>
#include <isc/util.h>
const struct in6_addr isc_net_in6addrany = IN6ADDR_ANY_INIT;
#endif
+#if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRLOOPBACK)
+const struct in6_addr isc_net_in6addrloop = IN6ADDR_LOOPBACK_INIT;
+#endif
+
static isc_boolean_t once = ISC_FALSE;
+static isc_once_t once_ipv6only = ISC_ONCE_INIT;
+static isc_once_t once_ipv6pktinfo = ISC_ONCE_INIT;
static isc_result_t ipv4_result = ISC_R_NOTFOUND;
static isc_result_t ipv6_result = ISC_R_NOTFOUND;
+static isc_result_t ipv6only_result = ISC_R_NOTFOUND;
+static isc_result_t ipv6pktinfo_result = ISC_R_NOTFOUND;
static isc_result_t
try_proto(int domain) {
}
#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
if (domain == PF_INET6) {
struct sockaddr_in6 sin6;
}
}
#endif
+#endif
#endif
(void)close(s);
initialize_action(void) {
ipv4_result = try_proto(PF_INET);
#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
ipv6_result = try_proto(PF_INET6);
#endif
#endif
+#endif
}
static void
initialize();
return (ipv6_result);
}
+
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+static void
+try_ipv6only(void) {
+#ifdef IPV6_V6ONLY
+ int s, on;
+ char strbuf[ISC_STRERRORSIZE];
+#endif
+ isc_result_t result;
+
+ result = isc_net_probeipv6();
+ if (result != ISC_R_SUCCESS) {
+ ipv6only_result = result;
+ return;
+ }
+
+#ifndef IPV6_V6ONLY
+ ipv6only_result = ISC_R_NOTFOUND;
+ return;
+#else
+ /* check for TCP sockets */
+ s = socket(PF_INET6, SOCK_STREAM, 0);
+ if (s == -1) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6only_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
+ ipv6only_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+
+ /* check for UDP sockets */
+ s = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (s == -1) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6only_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
+ ipv6only_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+
+ ipv6only_result = ISC_R_SUCCESS;
+
+close:
+ close(s);
+ return;
+#endif /* IPV6_V6ONLY */
+}
+
+static void
+initialize_ipv6only(void) {
+ RUNTIME_CHECK(isc_once_do(&once_ipv6only,
+ try_ipv6only) == ISC_R_SUCCESS);
+}
+#endif /* IPV6_V6ONLY */
+
+static void
+try_ipv6pktinfo(void) {
+ int s, on;
+ char strbuf[ISC_STRERRORSIZE];
+ isc_result_t result;
+ int optname;
+
+ result = isc_net_probeipv6();
+ if (result != ISC_R_SUCCESS) {
+ ipv6pktinfo_result = result;
+ return;
+ }
+
+ /* we only use this for UDP sockets */
+ s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+ if (s == -1) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6pktinfo_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+#ifdef IPV6_RECVPKTINFO
+ optname = IPV6_RECVPKTINFO;
+#else
+ optname = IPV6_PKTINFO;
+#endif
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, optname, &on, sizeof(on)) < 0) {
+ ipv6pktinfo_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+ ipv6pktinfo_result = ISC_R_SUCCESS;
+
+close:
+ close(s);
+ return;
+}
+
+static void
+initialize_ipv6pktinfo(void) {
+ RUNTIME_CHECK(isc_once_do(&once_ipv6pktinfo,
+ try_ipv6pktinfo) == ISC_R_SUCCESS);
+}
+#endif /* WANT_IPV6 */
+
+isc_result_t
+isc_net_probe_ipv6only(void) {
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+ initialize_ipv6only();
+#else
+ ipv6only_result = ISC_R_NOTFOUND;
+#endif
+#endif
+ return (ipv6only_result);
+}
+
+isc_result_t
+isc_net_probe_ipv6pktinfo(void) {
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+ initialize_ipv6pktinfo();
+#else
+ ipv6pktinfo_result = ISC_R_NOTFOUND;
+#endif
+#endif
+ return (ipv6pktinfo_result);
+}
+
+void
+isc_net_disableipv4(void) {
+ initialize();
+ if (ipv4_result == ISC_R_SUCCESS)
+ ipv4_result = ISC_R_DISABLED;
+}
+
+void
+isc_net_disableipv6(void) {
+ initialize();
+ if (ipv6_result == ISC_R_SUCCESS)
+ ipv6_result = ISC_R_DISABLED;
+}
+
+void
+isc_net_enableipv4(void) {
+ initialize();
+ if (ipv4_result == ISC_R_DISABLED)
+ ipv4_result = ISC_R_SUCCESS;
+}
+
+void
+isc_net_enableipv6(void) {
+ initialize();
+ if (ipv6_result == ISC_R_DISABLED)
+ ipv6_result = ISC_R_SUCCESS;
+}
--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: netaddr.c,v 1.18.12.9 2004/05/15 03:46:12 jinmei Exp $ */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <isc/buffer.h>
+#include <isc/msgs.h>
+#include <isc/net.h>
+#include <isc/netaddr.h>
+#include <isc/print.h>
+#include <isc/sockaddr.h>
+#include <isc/string.h>
+#include <isc/util.h>
+
+isc_boolean_t
+isc_netaddr_equal(const isc_netaddr_t *a, const isc_netaddr_t *b) {
+ REQUIRE(a != NULL && b != NULL);
+
+ if (a->family != b->family)
+ return (ISC_FALSE);
+
+ if (a->zone != b->zone)
+ return (ISC_FALSE);
+
+ switch (a->family) {
+ case AF_INET:
+ if (a->type.in.s_addr != b->type.in.s_addr)
+ return (ISC_FALSE);
+ break;
+ case AF_INET6:
+ if (memcmp(&a->type.in6, &b->type.in6,
+ sizeof(a->type.in6)) != 0 ||
+ a->zone != b->zone)
+ return (ISC_FALSE);
+ break;
+ default:
+ return (ISC_FALSE);
+ }
+ return (ISC_TRUE);
+}
+
+isc_boolean_t
+isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
+ unsigned int prefixlen)
+{
+ const unsigned char *pa, *pb;
+ unsigned int ipabytes; /* Length of whole IP address in bytes */
+ unsigned int nbytes; /* Number of significant whole bytes */
+ unsigned int nbits; /* Number of significant leftover bits */
+
+ REQUIRE(a != NULL && b != NULL);
+
+ if (a->family != b->family)
+ return (ISC_FALSE);
+
+ if (a->zone != b->zone)
+ return (ISC_FALSE);
+
+ switch (a->family) {
+ case AF_INET:
+ pa = (const unsigned char *) &a->type.in;
+ pb = (const unsigned char *) &b->type.in;
+ ipabytes = 4;
+ break;
+ case AF_INET6:
+ pa = (const unsigned char *) &a->type.in6;
+ pb = (const unsigned char *) &b->type.in6;
+ ipabytes = 16;
+ break;
+ default:
+ pa = pb = NULL; /* Avoid silly compiler warning. */
+ ipabytes = 0; /* Ditto. */
+ return (ISC_FALSE);
+ }
+
+ /*
+ * Don't crash if we get a pattern like 10.0.0.1/9999999.
+ */
+ if (prefixlen > ipabytes * 8)
+ prefixlen = ipabytes * 8;
+
+ nbytes = prefixlen / 8;
+ nbits = prefixlen % 8;
+
+ if (nbytes > 0) {
+ if (memcmp(pa, pb, nbytes) != 0)
+ return (ISC_FALSE);
+ }
+ if (nbits > 0) {
+ unsigned int bytea, byteb, mask;
+ INSIST(nbytes < ipabytes);
+ INSIST(nbits < 8);
+ bytea = pa[nbytes];
+ byteb = pb[nbytes];
+ mask = (0xFF << (8-nbits)) & 0xFF;
+ if ((bytea & mask) != (byteb & mask))
+ return (ISC_FALSE);
+ }
+ return (ISC_TRUE);
+}
+
+isc_result_t
+isc_netaddr_totext(const isc_netaddr_t *netaddr, isc_buffer_t *target) {
+ char abuf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255")];
+ char zbuf[sizeof("%4294967295")];
+ unsigned int alen;
+ int zlen;
+ const char *r;
+ const void *type;
+
+ REQUIRE(netaddr != NULL);
+
+ switch (netaddr->family) {
+ case AF_INET:
+ type = &netaddr->type.in;
+ break;
+ case AF_INET6:
+ type = &netaddr->type.in6;
+ break;
+ default:
+ return (ISC_R_FAILURE);
+ }
+ r = inet_ntop(netaddr->family, type, abuf, sizeof(abuf));
+ if (r == NULL)
+ return (ISC_R_FAILURE);
+
+ alen = strlen(abuf);
+ INSIST(alen < sizeof(abuf));
+
+ zlen = 0;
+ if (netaddr->family == AF_INET6 && netaddr->zone != 0) {
+ zlen = snprintf(zbuf, sizeof(zbuf), "%%%u", netaddr->zone);
+ if (zlen < 0)
+ return (ISC_R_FAILURE);
+ INSIST((unsigned int)zlen < sizeof(zbuf));
+ }
+
+ if (alen + zlen > isc_buffer_availablelength(target))
+ return (ISC_R_NOSPACE);
+
+ isc_buffer_putmem(target, (unsigned char *)abuf, alen);
+ isc_buffer_putmem(target, (unsigned char *)zbuf, zlen);
+
+ return (ISC_R_SUCCESS);
+}
+
+void
+isc_netaddr_format(const isc_netaddr_t *na, char *array, unsigned int size) {
+ isc_result_t result;
+ isc_buffer_t buf;
+
+ isc_buffer_init(&buf, array, size);
+ result = isc_netaddr_totext(na, &buf);
+
+ /*
+ * Null terminate.
+ */
+ if (result == ISC_R_SUCCESS) {
+ if (isc_buffer_availablelength(&buf) >= 1)
+ isc_buffer_putuint8(&buf, 0);
+ else
+ result = ISC_R_NOSPACE;
+ }
+
+ if (result != ISC_R_SUCCESS) {
+ snprintf(array, size,
+ isc_msgcat_get(isc_msgcat, ISC_MSGSET_NETADDR,
+ ISC_MSG_UNKNOWNADDR,
+ "<unknown address, family %u>"),
+ na->family);
+ array[size - 1] = '\0';
+ }
+}
+
+isc_result_t
+isc_netaddr_masktoprefixlen(const isc_netaddr_t *s, unsigned int *lenp) {
+ unsigned int nbits, nbytes, ipbytes, i;
+ const unsigned char *p;
+
+ switch (s->family) {
+ case AF_INET:
+ p = (const unsigned char *) &s->type.in;
+ ipbytes = 4;
+ break;
+ case AF_INET6:
+ p = (const unsigned char *) &s->type.in6;
+ ipbytes = 16;
+ break;
+ default:
+ ipbytes = 0;
+ return (ISC_R_NOTIMPLEMENTED);
+ }
+ nbytes = nbits = 0;
+ for (i = 0; i < ipbytes; i++) {
+ if (p[i] != 0xFF)
+ break;
+ }
+ nbytes = i;
+ if (i < ipbytes) {
+ unsigned int c = p[nbytes];
+ while ((c & 0x80) != 0 && nbits < 8) {
+ c <<= 1; nbits++;
+ }
+ if ((c & 0xFF) != 0)
+ return (ISC_R_MASKNONCONTIG);
+ i++;
+ }
+ for (; i < ipbytes; i++) {
+ if (p[i] != 0)
+ return (ISC_R_MASKNONCONTIG);
+ i++;
+ }
+ *lenp = nbytes * 8 + nbits;
+ return (ISC_R_SUCCESS);
+}
+
+void
+isc_netaddr_fromin(isc_netaddr_t *netaddr, const struct in_addr *ina) {
+ memset(netaddr, 0, sizeof(*netaddr));
+ netaddr->family = AF_INET;
+ netaddr->type.in = *ina;
+}
+
+void
+isc_netaddr_fromin6(isc_netaddr_t *netaddr, const struct in6_addr *ina6) {
+ memset(netaddr, 0, sizeof(*netaddr));
+ netaddr->family = AF_INET6;
+ netaddr->type.in6 = *ina6;
+}
+
+void
+isc_netaddr_setzone(isc_netaddr_t *netaddr, isc_uint32_t zone) {
+ /* we currently only support AF_INET6. */
+ REQUIRE(netaddr->family == AF_INET6);
+
+ netaddr->zone = zone;
+}
+
+isc_uint32_t
+isc_netaddr_getzone(const isc_netaddr_t *netaddr) {
+ return (netaddr->zone);
+}
+
+void
+isc_netaddr_fromsockaddr(isc_netaddr_t *t, const isc_sockaddr_t *s) {
+ int family = s->type.sa.sa_family;
+ t->family = family;
+ switch (family) {
+ case AF_INET:
+ t->type.in = s->type.sin.sin_addr;
+ t->zone = 0;
+ break;
+ case AF_INET6:
+ memcpy(&t->type.in6, &s->type.sin6.sin6_addr, 16);
+#ifdef ISC_PLATFORM_HAVESCOPEID
+ t->zone = s->type.sin6.sin6_scope_id;
+#else
+ t->zone = 0;
+#endif
+ break;
+ default:
+ INSIST(0);
+ }
+}
+
+void
+isc_netaddr_any(isc_netaddr_t *netaddr) {
+ memset(netaddr, 0, sizeof(*netaddr));
+ netaddr->family = AF_INET;
+ netaddr->type.in.s_addr = INADDR_ANY;
+}
+
+void
+isc_netaddr_any6(isc_netaddr_t *netaddr) {
+ memset(netaddr, 0, sizeof(*netaddr));
+ netaddr->family = AF_INET6;
+ netaddr->type.in6 = in6addr_any;
+}
+
+isc_boolean_t
+isc_netaddr_ismulticast(isc_netaddr_t *na) {
+ switch (na->family) {
+ case AF_INET:
+ return (ISC_TF(ISC_IPADDR_ISMULTICAST(na->type.in.s_addr)));
+ case AF_INET6:
+ return (ISC_TF(IN6_IS_ADDR_MULTICAST(&na->type.in6)));
+ default:
+ return (ISC_FALSE); /* XXXMLG ? */
+ }
+}
+
+isc_boolean_t
+isc_netaddr_isexperimental(isc_netaddr_t *na) {
+ switch (na->family) {
+ case AF_INET:
+ return (ISC_TF(ISC_IPADDR_ISEXPERIMENTAL(na->type.in.s_addr)));
+ default:
+ return (ISC_FALSE); /* XXXMLG ? */
+ }
+}
+
+isc_boolean_t
+isc_netaddr_islinklocal(isc_netaddr_t *na) {
+ switch (na->family) {
+ case AF_INET:
+ return (ISC_FALSE);
+ case AF_INET6:
+ return (ISC_TF(IN6_IS_ADDR_LINKLOCAL(&na->type.in6)));
+ default:
+ return (ISC_FALSE);
+ }
+}
+
+isc_boolean_t
+isc_netaddr_issitelocal(isc_netaddr_t *na) {
+ switch (na->family) {
+ case AF_INET:
+ return (ISC_FALSE);
+ case AF_INET6:
+ return (ISC_TF(IN6_IS_ADDR_SITELOCAL(&na->type.in6)));
+ default:
+ return (ISC_FALSE);
+ }
+}
+
+void
+isc_netaddr_fromv4mapped(isc_netaddr_t *t, const isc_netaddr_t *s) {
+ isc_netaddr_t *src;
+
+ DE_CONST(s, src); /* Must come before IN6_IS_ADDR_V4MAPPED. */
+
+ REQUIRE(s->family == AF_INET6);
+ REQUIRE(IN6_IS_ADDR_V4MAPPED(&src->type.in6));
+
+ memset(t, 0, sizeof(*t));
+ t->family = AF_INET;
+ memcpy(&t->type.in, (char *)&src->type.in6 + 12, 4);
+ return;
+}
--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2002 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] =
+ "$Id: netscope.c,v 1.5.142.7 2004/03/12 10:31:26 marka Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <config.h>
+
+#include <isc/string.h>
+#include <isc/net.h>
+#include <isc/netscope.h>
+#include <isc/result.h>
+
+isc_result_t
+isc_netscope_pton(int af, char *scopename, void *addr, isc_uint32_t *zoneid) {
+ char *ep;
+#ifdef ISC_PLATFORM_HAVEIFNAMETOINDEX
+ unsigned int ifid;
+#endif
+ struct in6_addr *in6;
+ isc_uint32_t zone;
+ isc_uint64_t llz;
+
+ /* at this moment, we only support AF_INET6 */
+ if (af != AF_INET6)
+ return (ISC_R_FAILURE);
+
+ in6 = (struct in6_addr *)addr;
+
+ /*
+ * Basically, "names" are more stable than numeric IDs in terms of
+ * renumbering, and are more preferred. However, since there is no
+ * standard naming convention and APIs to deal with the names. Thus,
+ * we only handle the case of link-local addresses, for which we use
+ * interface names as link names, assuming one to one mapping between
+ * interfaces and links.
+ */
+#ifdef ISC_PLATFORM_HAVEIFNAMETOINDEX
+ if (IN6_IS_ADDR_LINKLOCAL(in6) &&
+ (ifid = if_nametoindex((const char *)scopename)) != 0)
+ zone = (isc_uint32_t)ifid;
+ else {
+#endif
+ llz = isc_string_touint64(scopename, &ep, 10);
+ if (ep == scopename)
+ return (ISC_R_FAILURE);
+
+ /* check overflow */
+ zone = (isc_uint32_t)(llz & 0xffffffffUL);
+ if (zone != llz)
+ return (ISC_R_FAILURE);
+#ifdef ISC_PLATFORM_HAVEIFNAMETOINDEX
+ }
+#endif
+
+ *zoneid = zone;
+ return (ISC_R_SUCCESS);
+}
--- /dev/null
+/*
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2003 Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: sockaddr.c,v 1.48.2.1.2.10 2004/05/15 03:46:12 jinmei Exp $ */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <isc/buffer.h>
+/*
+ * We currently don't need hashing here
+ */
+#if 0
+#include <isc/hash.h>
+#endif
+
+#include <isc/msgs.h>
+#include <isc/netaddr.h>
+#include <isc/print.h>
+#include <isc/region.h>
+#include <isc/sockaddr.h>
+#include <isc/string.h>
+#include <isc/util.h>
+
+isc_boolean_t
+isc_sockaddr_equal(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
+ REQUIRE(a != NULL && b != NULL);
+
+ if (a->length != b->length)
+ return (ISC_FALSE);
+
+ /*
+ * We don't just memcmp because the sin_zero field isn't always
+ * zero.
+ */
+
+ if (a->type.sa.sa_family != b->type.sa.sa_family)
+ return (ISC_FALSE);
+ switch (a->type.sa.sa_family) {
+ case AF_INET:
+ if (memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
+ sizeof(a->type.sin.sin_addr)) != 0)
+ return (ISC_FALSE);
+ if (a->type.sin.sin_port != b->type.sin.sin_port)
+ return (ISC_FALSE);
+ break;
+ case AF_INET6:
+ if (memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
+ sizeof(a->type.sin6.sin6_addr)) != 0)
+ return (ISC_FALSE);
+#ifdef ISC_PLATFORM_HAVESCOPEID
+ if (a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id)
+ return (ISC_FALSE);
+#endif
+ if (a->type.sin6.sin6_port != b->type.sin6.sin6_port)
+ return (ISC_FALSE);
+ break;
+ default:
+ if (memcmp(&a->type, &b->type, a->length) != 0)
+ return (ISC_FALSE);
+ }
+ return (ISC_TRUE);
+}
+
+isc_boolean_t
+isc_sockaddr_eqaddr(const isc_sockaddr_t *a, const isc_sockaddr_t *b) {
+ REQUIRE(a != NULL && b != NULL);
+
+ if (a->length != b->length)
+ return (ISC_FALSE);
+
+ if (a->type.sa.sa_family != b->type.sa.sa_family)
+ return (ISC_FALSE);
+ switch (a->type.sa.sa_family) {
+ case AF_INET:
+ if (memcmp(&a->type.sin.sin_addr, &b->type.sin.sin_addr,
+ sizeof(a->type.sin.sin_addr)) != 0)
+ return (ISC_FALSE);
+ break;
+ case AF_INET6:
+ if (memcmp(&a->type.sin6.sin6_addr, &b->type.sin6.sin6_addr,
+ sizeof(a->type.sin6.sin6_addr)) != 0)
+ return (ISC_FALSE);
+#ifdef ISC_PLATFORM_HAVESCOPEID
+ if (a->type.sin6.sin6_scope_id != b->type.sin6.sin6_scope_id)
+ return (ISC_FALSE);
+#endif
+ break;
+ default:
+ if (memcmp(&a->type, &b->type, a->length) != 0)
+ return (ISC_FALSE);
+ }
+ return (ISC_TRUE);
+}
+
+isc_boolean_t
+isc_sockaddr_eqaddrprefix(const isc_sockaddr_t *a, const isc_sockaddr_t *b,
+ unsigned int prefixlen)
+{
+ isc_netaddr_t na, nb;
+ isc_netaddr_fromsockaddr(&na, a);
+ isc_netaddr_fromsockaddr(&nb, b);
+ return (isc_netaddr_eqprefix(&na, &nb, prefixlen));
+}
+
+isc_result_t
+isc_sockaddr_totext(const isc_sockaddr_t *sockaddr, isc_buffer_t *target) {
+ isc_result_t result;
+ isc_netaddr_t netaddr;
+ char pbuf[sizeof("65000")];
+ unsigned int plen;
+ isc_region_t avail;
+
+ REQUIRE(sockaddr != NULL);
+
+ /*
+ * Do the port first, giving us the opportunity to check for
+ * unsupported address families before calling
+ * isc_netaddr_fromsockaddr().
+ */
+ switch (sockaddr->type.sa.sa_family) {
+ case AF_INET:
+ snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin.sin_port));
+ break;
+ case AF_INET6:
+ snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin6.sin6_port));
+ break;
+ default:
+ return (ISC_R_FAILURE);
+ }
+
+ plen = strlen(pbuf);
+ INSIST(plen < sizeof(pbuf));
+
+ isc_netaddr_fromsockaddr(&netaddr, sockaddr);
+ result = isc_netaddr_totext(&netaddr, target);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+
+ if (1 + plen + 1 > isc_buffer_availablelength(target))
+ return (ISC_R_NOSPACE);
+
+ isc_buffer_putmem(target, (const unsigned char *)"#", 1);
+ isc_buffer_putmem(target, (const unsigned char *)pbuf, plen);
+
+ /*
+ * Null terminate after used region.
+ */
+ isc_buffer_availableregion(target, &avail);
+ INSIST(avail.length >= 1);
+ avail.base[0] = '\0';
+
+ return (ISC_R_SUCCESS);
+}
+
+void
+isc_sockaddr_format(const isc_sockaddr_t *sa, char *array, unsigned int size) {
+ isc_result_t result;
+ isc_buffer_t buf;
+
+ isc_buffer_init(&buf, array, size);
+ result = isc_sockaddr_totext(sa, &buf);
+ if (result != ISC_R_SUCCESS) {
+ /*
+ * The message is the same as in netaddr.c.
+ */
+ snprintf(array, size,
+ isc_msgcat_get(isc_msgcat, ISC_MSGSET_NETADDR,
+ ISC_MSG_UNKNOWNADDR,
+ "<unknown address, family %u>"),
+ sa->type.sa.sa_family);
+ array[size - 1] = '\0';
+ }
+}
+
+#if 0
+/*
+ * We currently don't need hashing here
+ */
+unsigned int
+isc_sockaddr_hash(const isc_sockaddr_t *sockaddr, isc_boolean_t address_only) {
+ unsigned int length = 0;
+ const unsigned char *s = NULL;
+ unsigned int h = 0;
+ unsigned int g;
+ unsigned int p = 0;
+ const struct in6_addr *in6;
+
+ REQUIRE(sockaddr != NULL);
+
+ switch (sockaddr->type.sa.sa_family) {
+ case AF_INET:
+ s = (const unsigned char *)&sockaddr->type.sin.sin_addr;
+ p = ntohs(sockaddr->type.sin.sin_port);
+ length = sizeof(sockaddr->type.sin.sin_addr.s_addr);
+ break;
+ case AF_INET6:
+ in6 = &sockaddr->type.sin6.sin6_addr;
+ if (IN6_IS_ADDR_V4MAPPED(in6)) {
+ s = (const unsigned char *)&in6[12];
+ length = sizeof(sockaddr->type.sin.sin_addr.s_addr);
+ } else {
+ s = (const unsigned char *)in6;
+ length = sizeof(sockaddr->type.sin6.sin6_addr);
+ }
+ p = ntohs(sockaddr->type.sin6.sin6_port);
+ break;
+ default:
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_SOCKADDR,
+ ISC_MSG_UNKNOWNFAMILY,
+ "unknown address family: %d"),
+ (int)sockaddr->type.sa.sa_family);
+ s = (const unsigned char *)&sockaddr->type;
+ length = sockaddr->length;
+ p = 0;
+ }
+
+ h = isc_hash_calc(s, length, ISC_TRUE);
+ if (!address_only) {
+ g = isc_hash_calc((const unsigned char *)&p, sizeof(p),
+ ISC_TRUE);
+ h = h ^ g; /* XXX: we should concatenate h and p first */
+ }
+
+ return (h);
+}
+#endif
+
+void
+isc_sockaddr_any(isc_sockaddr_t *sockaddr)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin.sin_family = AF_INET;
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
+#endif
+ sockaddr->type.sin.sin_addr.s_addr = INADDR_ANY;
+ sockaddr->type.sin.sin_port = 0;
+ sockaddr->length = sizeof(sockaddr->type.sin);
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+void
+isc_sockaddr_any6(isc_sockaddr_t *sockaddr)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin6.sin6_family = AF_INET6;
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
+#endif
+ sockaddr->type.sin6.sin6_addr = in6addr_any;
+ sockaddr->type.sin6.sin6_port = 0;
+ sockaddr->length = sizeof(sockaddr->type.sin6);
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+void
+isc_sockaddr_fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
+ in_port_t port)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin.sin_family = AF_INET;
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
+#endif
+ sockaddr->type.sin.sin_addr = *ina;
+ sockaddr->type.sin.sin_port = htons(port);
+ sockaddr->length = sizeof(sockaddr->type.sin);
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+void
+isc_sockaddr_anyofpf(isc_sockaddr_t *sockaddr, int pf) {
+ switch (pf) {
+ case AF_INET:
+ isc_sockaddr_any(sockaddr);
+ break;
+ case AF_INET6:
+ isc_sockaddr_any6(sockaddr);
+ break;
+ default:
+ INSIST(0);
+ }
+}
+
+void
+isc_sockaddr_fromin6(isc_sockaddr_t *sockaddr, const struct in6_addr *ina6,
+ in_port_t port)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin6.sin6_family = AF_INET6;
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
+#endif
+ sockaddr->type.sin6.sin6_addr = *ina6;
+ sockaddr->type.sin6.sin6_port = htons(port);
+ sockaddr->length = sizeof(sockaddr->type.sin6);
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+void
+isc_sockaddr_v6fromin(isc_sockaddr_t *sockaddr, const struct in_addr *ina,
+ in_port_t port)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin6.sin6_family = AF_INET6;
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
+#endif
+ sockaddr->type.sin6.sin6_addr.s6_addr[10] = 0xff;
+ sockaddr->type.sin6.sin6_addr.s6_addr[11] = 0xff;
+ memcpy(&sockaddr->type.sin6.sin6_addr.s6_addr[12], ina, 4);
+ sockaddr->type.sin6.sin6_port = htons(port);
+ sockaddr->length = sizeof(sockaddr->type.sin6);
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+int
+isc_sockaddr_pf(const isc_sockaddr_t *sockaddr) {
+
+ /*
+ * Get the protocol family of 'sockaddr'.
+ */
+
+#if (AF_INET == PF_INET && AF_INET6 == PF_INET6)
+ /*
+ * Assume that PF_xxx == AF_xxx for all AF and PF.
+ */
+ return (sockaddr->type.sa.sa_family);
+#else
+ switch (sockaddr->type.sa.sa_family) {
+ case AF_INET:
+ return (PF_INET);
+ case AF_INET6:
+ return (PF_INET6);
+ default:
+ FATAL_ERROR(__FILE__, __LINE__,
+ isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
+ ISC_MSG_UNKNOWNFAMILY,
+ "unknown address family: %d"),
+ (int)sockaddr->type.sa.sa_family);
+ }
+#endif
+}
+
+void
+isc_sockaddr_fromnetaddr(isc_sockaddr_t *sockaddr, const isc_netaddr_t *na,
+ in_port_t port)
+{
+ memset(sockaddr, 0, sizeof(*sockaddr));
+ sockaddr->type.sin.sin_family = na->family;
+ switch (na->family) {
+ case AF_INET:
+ sockaddr->length = sizeof(sockaddr->type.sin);
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin.sin_len = sizeof(sockaddr->type.sin);
+#endif
+ sockaddr->type.sin.sin_addr = na->type.in;
+ sockaddr->type.sin.sin_port = htons(port);
+ break;
+ case AF_INET6:
+ sockaddr->length = sizeof(sockaddr->type.sin6);
+#ifdef ISC_PLATFORM_HAVESALEN
+ sockaddr->type.sin6.sin6_len = sizeof(sockaddr->type.sin6);
+#endif
+ memcpy(&sockaddr->type.sin6.sin6_addr, &na->type.in6, 16);
+#ifdef ISC_PLATFORM_HAVESCOPEID
+ sockaddr->type.sin6.sin6_scope_id = isc_netaddr_getzone(na);
+#endif
+ sockaddr->type.sin6.sin6_port = htons(port);
+ break;
+ default:
+ INSIST(0);
+ }
+ ISC_LINK_INIT(sockaddr, link);
+}
+
+void
+isc_sockaddr_setport(isc_sockaddr_t *sockaddr, in_port_t port) {
+ switch (sockaddr->type.sa.sa_family) {
+ case AF_INET:
+ sockaddr->type.sin.sin_port = htons(port);
+ break;
+ case AF_INET6:
+ sockaddr->type.sin6.sin6_port = htons(port);
+ break;
+ default:
+ FATAL_ERROR(__FILE__, __LINE__,
+ isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
+ ISC_MSG_UNKNOWNFAMILY,
+ "unknown address family: %d"),
+ (int)sockaddr->type.sa.sa_family);
+ }
+}
+
+in_port_t
+isc_sockaddr_getport(isc_sockaddr_t *sockaddr) {
+ in_port_t port = 0;
+
+ switch (sockaddr->type.sa.sa_family) {
+ case AF_INET:
+ port = ntohs(sockaddr->type.sin.sin_port);
+ break;
+ case AF_INET6:
+ port = ntohs(sockaddr->type.sin6.sin6_port);
+ break;
+ default:
+ FATAL_ERROR(__FILE__, __LINE__,
+ isc_msgcat_get(isc_msgcat, ISC_MSGSET_SOCKADDR,
+ ISC_MSG_UNKNOWNFAMILY,
+ "unknown address family: %d"),
+ (int)sockaddr->type.sa.sa_family);
+ }
+
+ return (port);
+}
+
+isc_boolean_t
+isc_sockaddr_ismulticast(isc_sockaddr_t *sockaddr) {
+ isc_netaddr_t netaddr;
+
+ isc_netaddr_fromsockaddr(&netaddr, sockaddr);
+ return (isc_netaddr_ismulticast(&netaddr));
+}
+
+isc_boolean_t
+isc_sockaddr_isexperimental(isc_sockaddr_t *sockaddr) {
+ isc_netaddr_t netaddr;
+
+ if (sockaddr->type.sa.sa_family == AF_INET) {
+ isc_netaddr_fromsockaddr(&netaddr, sockaddr);
+ return (isc_netaddr_isexperimental(&netaddr));
+ }
+ return (ISC_FALSE);
+}
+
+isc_boolean_t
+isc_sockaddr_issitelocal(isc_sockaddr_t *sockaddr) {
+ isc_netaddr_t netaddr;
+
+ if (sockaddr->type.sa.sa_family == AF_INET6) {
+ isc_netaddr_fromsockaddr(&netaddr, sockaddr);
+ return (isc_netaddr_issitelocal(&netaddr));
+ }
+ return (ISC_FALSE);
+}
+
+isc_boolean_t
+isc_sockaddr_islinklocal(isc_sockaddr_t *sockaddr) {
+ isc_netaddr_t netaddr;
+
+ if (sockaddr->type.sa.sa_family == AF_INET6) {
+ isc_netaddr_fromsockaddr(&netaddr, sockaddr);
+ return (isc_netaddr_islinklocal(&netaddr));
+ }
+ return (ISC_FALSE);
+}
/*
- * Copyright (C) 2000, 2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: ipv6.h,v 1.10 2002/08/01 03:56:08 mayer Exp $ */
+/* $Id: ipv6.h,v 1.9.2.2.2.5 2004/04/19 06:39:55 marka Exp $ */
#ifndef ISC_IPV6_H
#define ISC_IPV6_H 1
* RFC 2553.
*/
-#define s6_addr8 s6_addr
+#if _MSC_VER < 1300
#define in6_addr in_addr6
+#endif
#ifndef IN6ADDR_ANY_INIT
#define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
#define IN6ADDR_LOOPBACK_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}
#endif
+extern const struct in6_addr isc_in6addr_any;
+extern const struct in6_addr isc_in6addr_loopback;
+
/*
* Unspecified
*/
*/
#ifndef IN6_IS_ADDR_MULTICAST
#define IN6_IS_ADDR_MULTICAST(a) \
- ((a)->s6_addr8[0] == 0xffU)
+ ((a)->s6_addr[0] == 0xffU)
#endif
/*
* Unicast link / site local.
/*
- * Copyright (C) 1999-2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2003 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: net.h,v 1.17 2002/08/01 03:56:08 mayer Exp $ */
+/* $Id: net.h,v 1.15.12.10 2004/04/29 01:31:23 marka Exp $ */
#ifndef ISC_NET_H
#define ISC_NET_H 1
#include <isc/lang.h>
#include <isc/types.h>
-//#include <ws2tcpip.h>
-//#include <isc/ipv6.h>
+#include <ws2tcpip.h>
+#include <isc/ipv6.h>
/*
* This is here because named client, interfacemgr.c, etc. use the name as
#endif
#endif
+#if _MSC_VER < 1300
+#define in6addr_any isc_in6addr_any
+#define in6addr_loopback isc_in6addr_loopback
+#endif
+
/*
* Ensure type in_port_t is defined.
*/
(((isc_uint32_t)(i) & ISC__IPADDR(0xf0000000)) \
== ISC__IPADDR(0xe0000000))
+#define ISC_IPADDR_ISEXPERIMENTAL(i) \
+ (((isc_uint32_t)(i) & ISC__IPADDR(0xf0000000)) \
+ == ISC__IPADDR(0xf0000000))
+
/*
* Fix the FD_SET and FD_CLR Macros to properly cast
*/
*
* ISC_R_SUCCESS IPv4 is supported.
* ISC_R_NOTFOUND IPv4 is not supported.
+ * ISC_R_DISABLED IPv4 is disabled.
* ISC_R_UNEXPECTED
*/
*
* ISC_R_SUCCESS IPv6 is supported.
* ISC_R_NOTFOUND IPv6 is not supported.
+ * ISC_R_DISABLED IPv6 is disabled.
+ * ISC_R_UNEXPECTED
+ */
+
+isc_result_t
+isc_net_probe_ipv6only(void);
+/*
+ * Check if the system's kernel supports the IPV6_V6ONLY socket option.
+ *
+ * Returns:
+ *
+ * ISC_R_SUCCESS the option is supported for both TCP and UDP.
+ * ISC_R_NOTFOUND IPv6 itself or the option is not supported.
* ISC_R_UNEXPECTED
*/
+isc_result_t
+isc_net_probe_ipv6pktinfo(void);
+/*
+ * Check if the system's kernel supports the IPV6_(RECV)PKTINFO socket option
+ * for UDP sockets.
+ *
+ * Returns:
+ *
+ * ISC_R_SUCCESS the option is supported.
+ * ISC_R_NOTFOUND IPv6 itself or the option is not supported.
+ * ISC_R_UNEXPECTED
+ */
+
+void
+isc_net_disableipv4(void);
+
+void
+isc_net_disableipv6(void);
+
+void
+isc_net_enableipv4(void);
+
+void
+isc_net_enableipv6(void);
+
#ifdef ISC_PLATFORM_NEEDNTOP
const char *
isc_net_ntop(int af, const void *src, char *dst, size_t size);
/*
- * Copyright (C) 1999-2001 Internet Software Consortium.
+ * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1999-2003 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
*/
-/* $Id: net.c,v 1.4 2001/11/21 05:07:25 mayer Exp $ */
+/* $Id: net.c,v 1.3.2.2.4.7 2004/04/29 01:31:23 marka Exp $ */
#include <config.h>
#include <ws2tcpip.h>
#include <isc/ipv6.h>
#include <isc/net.h>
+#include <isc/once.h>
#include <isc/strerror.h>
#include <isc/string.h>
#include <isc/util.h>
#endif
static isc_boolean_t once = ISC_FALSE;
+static isc_once_t once_ipv6only = ISC_ONCE_INIT;
+static isc_once_t once_ipv6pktinfo = ISC_ONCE_INIT;
static isc_result_t ipv4_result = ISC_R_NOTFOUND;
static isc_result_t ipv6_result = ISC_R_NOTFOUND;
+static isc_result_t ipv6only_result = ISC_R_NOTFOUND;
+static isc_result_t ipv6pktinfo_result = ISC_R_NOTFOUND;
static isc_result_t
try_proto(int domain) {
}
#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
if (domain == PF_INET6) {
struct sockaddr_in6 sin6;
}
}
#endif
+#endif
#endif
closesocket(s);
initialize_action(void) {
ipv4_result = try_proto(PF_INET);
#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
ipv6_result = try_proto(PF_INET6);
#endif
#endif
+#endif
}
static void
initialize();
return (ipv6_result);
}
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+static void
+try_ipv6only(void) {
+#ifdef IPV6_V6ONLY
+ SOCKET s;
+ int on;
+ char strbuf[ISC_STRERRORSIZE];
+#endif
+ isc_result_t result;
+
+ result = isc_net_probeipv6();
+ if (result != ISC_R_SUCCESS) {
+ ipv6only_result = result;
+ return;
+ }
+
+#ifndef IPV6_V6ONLY
+ ipv6only_result = ISC_R_NOTFOUND;
+ return;
+#else
+ /* check for TCP sockets */
+ s = socket(PF_INET6, SOCK_STREAM, 0);
+ if (s == INVALID_SOCKET) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6only_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
+ ipv6only_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+
+ /* check for UDP sockets */
+ s = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (s == INVALID_SOCKET) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6only_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
+ ipv6only_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+
+ ipv6only_result = ISC_R_SUCCESS;
+
+close:
+ close(s);
+ return;
+#endif /* IPV6_V6ONLY */
+}
+
+static void
+initialize_ipv6only(void) {
+ RUNTIME_CHECK(isc_once_do(&once_ipv6only,
+ try_ipv6only) == ISC_R_SUCCESS);
+}
+
+static void
+try_ipv6pktinfo(void) {
+ int s, on;
+ char strbuf[ISC_STRERRORSIZE];
+ isc_result_t result;
+ int optname;
+
+ result = isc_net_probeipv6();
+ if (result != ISC_R_SUCCESS) {
+ ipv6pktinfo_result = result;
+ return;
+ }
+
+ /* we only use this for UDP sockets */
+ s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+ if (s == -1) {
+ isc__strerror(errno, strbuf, sizeof(strbuf));
+ UNEXPECTED_ERROR(__FILE__, __LINE__,
+ "socket() %s: %s",
+ isc_msgcat_get(isc_msgcat,
+ ISC_MSGSET_GENERAL,
+ ISC_MSG_FAILED,
+ "failed"),
+ strbuf);
+ ipv6pktinfo_result = ISC_R_UNEXPECTED;
+ return;
+ }
+
+#ifdef IPV6_RECVPKTINFO
+ optname = IPV6_RECVPKTINFO;
+#else
+ optname = IPV6_PKTINFO;
+#endif
+ on = 1;
+ if (setsockopt(s, IPPROTO_IPV6, optname, &on, sizeof(on)) < 0) {
+ ipv6pktinfo_result = ISC_R_NOTFOUND;
+ goto close;
+ }
+
+ close(s);
+ ipv6pktinfo_result = ISC_R_SUCCESS;
+
+close:
+ close(s);
+ return;
+}
+
+static void
+initialize_ipv6pktinfo(void) {
+ RUNTIME_CHECK(isc_once_do(&once_ipv6pktinfo,
+ try_ipv6pktinfo) == ISC_R_SUCCESS);
+}
+#endif /* WANT_IPV6 */
+#endif /* ISC_PLATFORM_HAVEIPV6 */
+
+isc_result_t
+isc_net_probe_ipv6only(void) {
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+ initialize_ipv6only();
+#else
+ ipv6only_result = ISC_R_NOTFOUND;
+#endif
+#endif
+ return (ipv6only_result);
+}
+
+isc_result_t
+isc_net_probe_ipv6pktinfo(void) {
+#ifdef ISC_PLATFORM_HAVEIPV6
+#ifdef WANT_IPV6
+ initialize_ipv6pktinfo();
+#else
+ ipv6pktinfo_result = ISC_R_NOTFOUND;
+#endif
+#endif
+ return (ipv6pktinfo_result);
+}
+
+void
+isc_net_disableipv4(void) {
+ initialize();
+ if (ipv4_result == ISC_R_SUCCESS)
+ ipv4_result = ISC_R_DISABLED;
+}
+
+void
+isc_net_disableipv6(void) {
+ initialize();
+ if (ipv6_result == ISC_R_SUCCESS)
+ ipv6_result = ISC_R_DISABLED;
+}
+
+void
+isc_net_enableipv4(void) {
+ initialize();
+ if (ipv4_result == ISC_R_DISABLED)
+ ipv4_result = ISC_R_SUCCESS;
+}
+
+void
+isc_net_enableipv6(void) {
+ initialize();
+ if (ipv6_result == ISC_R_DISABLED)
+ ipv6_result = ISC_R_SUCCESS;
+}
/*
* Initialize socket services
*/
projects / thirdparty / ntp.git / commitdiff
