[Olsr-dev] [PATCH] Add support for building for iOS

Will Hawkins (spam-protected)
Tue Oct 22 21:28:57 CEST 2013


Add support for building olsrd on iOS. This changes
three files and adds two.

Makefile.inc:
Conditionally apply the --warn-common and -export-dynamic
linker flags because they are not supported on iOS.

src/bsd/net.c:
Conditionally compile part of the get_ipv6_address that
requires the SIOCGIFAFLAG_IN6 flag that is not available
in iOS.

src/unix/ifnet.c:
Conditionally include net/if_arp.h, which is not
available in iOS.

make/Makefile.ios:
A basic iOS makefile. Parameters include:
IOS_PLATFORM=(Simulator|OS)
IOS_BASE_SDK=6.1

src/mac/net/route.h:
Bring in the route.h file from OS X since iOS
does not have one by default.
---
 Makefile.inc        |   4 +-
 make/Makefile.ios   |  66 +++++++++++++
 src/bsd/net.c       |   9 +-
 src/mac/net/route.h | 271 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/unix/ifnet.c    |   2 +
 5 files changed, 350 insertions(+), 2 deletions(-)
 create mode 100644 make/Makefile.ios
 create mode 100644 src/mac/net/route.h

diff --git a/Makefile.inc b/Makefile.inc
index 77e9547..f7c012c 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -169,13 +169,15 @@ else
 # c and ld flags for main
 ifeq ($(OS),win32)
   LDFLAGS +=	-Wl,-export-all-symbols
-else 
+elseifneq ($(OS), ios)
   LDFLAGS +=	-Wl,-export-dynamic 
 endif
 LDFLAGS +=	-Wl,-rpath,$(LIBDIR)
 endif
 # LDFLAGS for all 
+ifneq ($(OS), ios)
 LDFLAGS +=	-Wl,--warn-common
+endif
 # See above at "-ffunction-sections" for an explanation (and why it is disabled).
 #LDOPTS +=	-Wl,--gc-sections
 #LDOPTS +=	-Wl,--print-gc-sections
diff --git a/make/Makefile.ios b/make/Makefile.ios
new file mode 100644
index 0000000..e3143b3
--- /dev/null
+++ b/make/Makefile.ios
@@ -0,0 +1,66 @@
+#
+# MAC OSX SPECIFIC CONFIGURATION
+#
+
+# don't strip executables and bundles for now until we figure out the proper way
+# to do it (flags).
+STRIP = \#
+
+DESTDIR ?=
+LIBDIR =	$(DESTDIR)/usr/lib
+
+SRCS +=		$(wildcard src/bsd/*.c src/unix/*.c)
+HDRS +=		$(wildcard src/bsd/*.h src/unix/*.h)
+
+#####
+#IOS_PLATFORM?=OS
+IOS_PLATFORM?=Simulator
+
+ifeq ($(IOS_PLATFORM),OS)
+IOS_ARCH=armv7
+else
+IOS_ARCH=i386
+endif
+
+IOS_BASE_SDK=6.1
+CFLAGS+=-I$(GLOBAL)_OUTDIR/include -L$(GLOBAL)_OUTDIR/lib -I$(TOPDIR)/src/mac/ -arch $(IOS_ARCH) -pipe -no-cpp-precomp -isysroot $(SDKROOT) -I$(SDKROOT)/usr/include/ -D__IOS__
+
+CPP=$(DEVROOT)/usr/bin/llvm-cpp-4.2
+CXX=$(DEVROOT)/usr/bin/llvm-g++-4.2
+CXXCPP=$(DEVROOT)/usr/bin/llvm-cpp-4.2
+CC=$(DEVROOT)/usr/bin/llvm-gcc-4.2
+LD=$(DEVROOT)/usr/bin/ld
+AR=$(DEVROOT)/usr/bin/ar
+AS=$(DEVROOT)/usr/bin/as
+NM=$(DEVROOT)/usr/bin/nm
+RANLIB=$(DEVROOT)/usr/bin/ranlib
+LDFLAGS+=-L$(SDKROOT)/usr/lib/ -L$(SDKROOT)/usr/lib/system -arch $(IOS_ARCH)
+ 
+CPPFLAGS+=$(CFLAGS)
+CXXFLAGS+=$(CFLAGS)
+
+DEVROOT=/Applications/Xcode.app/Contents/Developer/Platforms/iPhone$(IOS_PLATFORM).platform/Developer
+SDKROOT=$(DEVROOT)/SDKs/iPhone$(IOS_PLATFORM)$(IOS_BASE_SDK).sdk
+ 
+#####
+
+LIBS +=		
+
+PLUGIN_SONAME ?= $(PLUGIN_NAME)
+PLUGIN_FULLNAME ?= $(PLUGIN_NAME).so.$(PLUGIN_VER)
+INSTALL_LIB =	install -m 755 $(PLUGIN_FULLNAME) $(LIBDIR)/$(PLUGIN_FULLNAME)
+UNINSTALL_LIB =	rm -f $(LIBDIR)/$(PLUGIN_FULLNAME)
+
+ifdef OLSRD_PLUGIN
+LDFLAGS += -flat_namespace -undefined suppress
+else
+LDFLAGS += -dynamic
+endif
+
+OS_LIB_PTHREAD =
+OS_CFLAG_PTHREAD =
+OS_LIB_DYNLOAD =
+
+# Local Variables:
+# mode: makefile
+# End:
diff --git a/src/bsd/net.c b/src/bsd/net.c
index 379f11e..6bf4ab3 100644
--- a/src/bsd/net.c
+++ b/src/bsd/net.c
@@ -115,7 +115,10 @@
 #include <ifaddrs.h>
 #include <net/if_var.h>
 #include <net/ethernet.h>
+#ifndef __IOS__
 #include <netinet/in_var.h>
+#include <netinet6/in6_var.h>
+#endif /* __IOS__ */
 #endif /* __APPLE__ */
 
 #include <net/if_dl.h>
@@ -511,10 +514,12 @@ get_ipv6_address(char *ifname, struct sockaddr_in6 *saddr6, struct olsr_ip_prefi
   struct ifaddrs *ifap, *ifa;
   const struct sockaddr_in6 *sin6 = NULL;
   const union olsr_ip_addr *tmp_ip;
+#ifndef __IOS__
   struct in6_ifreq ifr6;
-  int found = 0;
   int s6;
   u_int32_t flags6;
+#endif /* __IOS__ */
+  int found = 0;
 
   if (getifaddrs(&ifap) != 0) {
     OLSR_PRINTF(3, "get_ipv6_address: getifaddrs() failed.\n");
@@ -526,6 +531,7 @@ get_ipv6_address(char *ifname, struct sockaddr_in6 *saddr6, struct olsr_ip_prefi
       sin6 = (const struct sockaddr_in6 *)(ifa->ifa_addr);
       if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr))
         continue;
+#ifndef __IOS__
       strscpy(ifr6.ifr_name, ifname, sizeof(ifr6.ifr_name));
       if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
         OLSR_PRINTF(3, "socket(AF_INET6,SOCK_DGRAM)");
@@ -541,6 +547,7 @@ get_ipv6_address(char *ifname, struct sockaddr_in6 *saddr6, struct olsr_ip_prefi
       flags6 = ifr6.ifr_ifru.ifru_flags6;
       if ((flags6 & IN6_IFF_ANYCAST) != 0)
         continue;
+#endif /* __IOS__ */
 
       tmp_ip = (const union olsr_ip_addr *) &sin6->sin6_addr;
       if ((prefix == NULL && !IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr))
diff --git a/src/mac/net/route.h b/src/mac/net/route.h
new file mode 100644
index 0000000..7267f92
--- /dev/null
+++ b/src/mac/net/route.h
@@ -0,0 +1,271 @@
+/*
+ * Copyright (c) 2000-2011 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * 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@
+ */
+/*
+ * Copyright (c) 1980, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)route.h	8.3 (Berkeley) 4/19/94
+ * $FreeBSD: src/sys/net/route.h,v 1.36.2.1 2000/08/16 06:14:23 jayanth Exp $
+ */
+
+#ifndef _NET_ROUTE_H_
+#define _NET_ROUTE_H_
+#include <sys/appleapiopts.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+/*
+ * Kernel resident routing tables.
+ *
+ * The routing tables are initialized when interface addresses
+ * are set by making entries for all directly connected interfaces.
+ */
+
+/*
+ * A route consists of a destination address and a reference
+ * to a routing entry.  These are often held by protocols
+ * in their control blocks, e.g. inpcb.
+ */
+struct route;
+
+/*
+ * These numbers are used by reliable protocols for determining
+ * retransmission behavior and are included in the routing structure.
+ */
+struct rt_metrics {
+	u_int32_t	rmx_locks;	/* Kernel must leave these values alone */
+	u_int32_t	rmx_mtu;	/* MTU for this path */
+	u_int32_t	rmx_hopcount;	/* max hops expected */
+	int32_t		rmx_expire;	/* lifetime for route, e.g. redirect */
+	u_int32_t	rmx_recvpipe;	/* inbound delay-bandwidth product */
+	u_int32_t	rmx_sendpipe;	/* outbound delay-bandwidth product */
+	u_int32_t	rmx_ssthresh;	/* outbound gateway buffer limit */
+	u_int32_t	rmx_rtt;	/* estimated round trip time */
+	u_int32_t	rmx_rttvar;	/* estimated rtt variance */
+	u_int32_t	rmx_pksent;	/* packets sent using this route */
+	u_int32_t	rmx_filler[4];	/* will be used for T/TCP later */
+};
+
+/*
+ * rmx_rtt and rmx_rttvar are stored as microseconds;
+ */
+#define	RTM_RTTUNIT	1000000	/* units for rtt, rttvar, as units per sec */
+
+
+/*
+ * We distinguish between routes to hosts and routes to networks,
+ * preferring the former if available.  For each route we infer
+ * the interface to use from the gateway address supplied when
+ * the route was entered.  Routes that forward packets through
+ * gateways are marked so that the output routines know to address the
+ * gateway rather than the ultimate destination.
+ */
+
+
+#define	RTF_UP		0x1		/* route usable */
+#define	RTF_GATEWAY	0x2		/* destination is a gateway */
+#define	RTF_HOST	0x4		/* host entry (net otherwise) */
+#define	RTF_REJECT	0x8		/* host or net unreachable */
+#define	RTF_DYNAMIC	0x10		/* created dynamically (by redirect) */
+#define	RTF_MODIFIED	0x20		/* modified dynamically (by redirect) */
+#define RTF_DONE	0x40		/* message confirmed */
+#define RTF_DELCLONE	0x80		/* delete cloned route */
+#define RTF_CLONING	0x100		/* generate new routes on use */
+#define RTF_XRESOLVE	0x200		/* external daemon resolves name */
+#define RTF_LLINFO	0x400		/* generated by link layer (e.g. ARP) */
+#define RTF_STATIC	0x800		/* manually added */
+#define RTF_BLACKHOLE	0x1000		/* just discard pkts (during updates) */
+#define RTF_PROTO2	0x4000		/* protocol specific routing flag */
+#define RTF_PROTO1	0x8000		/* protocol specific routing flag */
+
+#define RTF_PRCLONING	0x10000		/* protocol requires cloning */
+#define RTF_WASCLONED	0x20000		/* route generated through cloning */
+#define RTF_PROTO3	0x40000		/* protocol specific routing flag */
+					/* 0x80000 unused */
+#define RTF_PINNED	0x100000	/* future use */
+#define	RTF_LOCAL	0x200000	/* route represents a local address */
+#define	RTF_BROADCAST	0x400000	/* route represents a bcast address */
+#define	RTF_MULTICAST	0x800000	/* route represents a mcast address */
+#define RTF_IFSCOPE	0x1000000	/* has valid interface scope */
+#define RTF_CONDEMNED	0x2000000	/* defunct; no longer modifiable */
+#define RTF_IFREF	0x4000000	/* route holds a ref to interface */
+					/* 0x8000000 and up unassigned */
+
+/*
+ * Routing statistics.
+ */
+struct	rtstat {
+	short	rts_badredirect;	/* bogus redirect calls */
+	short	rts_dynamic;		/* routes created by redirects */
+	short	rts_newgateway;		/* routes modified by redirects */
+	short	rts_unreach;		/* lookups which failed */
+	short	rts_wildcard;		/* lookups satisfied by a wildcard */
+};
+
+/*
+ * Structures for routing messages.
+ */
+struct rt_msghdr {
+	u_short	rtm_msglen;		/* to skip over non-understood messages */
+	u_char	rtm_version;		/* future binary compatibility */
+	u_char	rtm_type;		/* message type */
+	u_short	rtm_index;		/* index for associated ifp */
+	int	rtm_flags;		/* flags, incl. kern & message, e.g. DONE */
+	int	rtm_addrs;		/* bitmask identifying sockaddrs in msg */
+	pid_t	rtm_pid;		/* identify sender */
+	int	rtm_seq;		/* for sender to identify action */
+	int	rtm_errno;		/* why failed */
+	int	rtm_use;		/* from rtentry */
+	u_int32_t rtm_inits;		/* which metrics we are initializing */
+	struct rt_metrics rtm_rmx;	/* metrics themselves */
+};
+
+struct rt_msghdr2 {
+	u_short	rtm_msglen;		/* to skip over non-understood messages */
+	u_char	rtm_version;		/* future binary compatibility */
+	u_char	rtm_type;		/* message type */
+	u_short	rtm_index;		/* index for associated ifp */
+	int	rtm_flags;		/* flags, incl. kern & message, e.g. DONE */
+	int	rtm_addrs;		/* bitmask identifying sockaddrs in msg */
+	int32_t	rtm_refcnt;		/* reference count */
+	int	rtm_parentflags;	/* flags of the parent route */
+	int	rtm_reserved;		/* reserved field set to 0 */
+	int	rtm_use;		/* from rtentry */
+	u_int32_t rtm_inits;		/* which metrics we are initializing */
+	struct rt_metrics rtm_rmx;	/* metrics themselves */
+};
+
+
+#define RTM_VERSION	5	/* Up the ante and ignore older versions */
+
+/*
+ * Message types.
+ */
+#define RTM_ADD		0x1	/* Add Route */
+#define RTM_DELETE	0x2	/* Delete Route */
+#define RTM_CHANGE	0x3	/* Change Metrics or flags */
+#define RTM_GET		0x4	/* Report Metrics */
+#define RTM_LOSING	0x5	/* Kernel Suspects Partitioning */
+#define RTM_REDIRECT	0x6	/* Told to use different route */
+#define RTM_MISS	0x7	/* Lookup failed on this address */
+#define RTM_LOCK	0x8	/* fix specified metrics */
+#define RTM_OLDADD	0x9	/* caused by SIOCADDRT */
+#define RTM_OLDDEL	0xa	/* caused by SIOCDELRT */
+#define RTM_RESOLVE	0xb	/* req to resolve dst to LL addr */
+#define RTM_NEWADDR	0xc	/* address being added to iface */
+#define RTM_DELADDR	0xd	/* address being removed from iface */
+#define RTM_IFINFO	0xe	/* iface going up/down etc. */
+#define	RTM_NEWMADDR	0xf	/* mcast group membership being added to if */
+#define	RTM_DELMADDR	0x10	/* mcast group membership being deleted */
+#define RTM_IFINFO2	0x12	/* */
+#define RTM_NEWMADDR2	0x13	/* */
+#define RTM_GET2	0x14	/* */
+
+/*
+ * Bitmask values for rtm_inits and rmx_locks.
+ */
+#define RTV_MTU		0x1	/* init or lock _mtu */
+#define RTV_HOPCOUNT	0x2	/* init or lock _hopcount */
+#define RTV_EXPIRE	0x4	/* init or lock _expire */
+#define RTV_RPIPE	0x8	/* init or lock _recvpipe */
+#define RTV_SPIPE	0x10	/* init or lock _sendpipe */
+#define RTV_SSTHRESH	0x20	/* init or lock _ssthresh */
+#define RTV_RTT		0x40	/* init or lock _rtt */
+#define RTV_RTTVAR	0x80	/* init or lock _rttvar */
+
+/*
+ * Bitmask values for rtm_addrs.
+ */
+#define RTA_DST		0x1	/* destination sockaddr present */
+#define RTA_GATEWAY	0x2	/* gateway sockaddr present */
+#define RTA_NETMASK	0x4	/* netmask sockaddr present */
+#define RTA_GENMASK	0x8	/* cloning mask sockaddr present */
+#define RTA_IFP		0x10	/* interface name sockaddr present */
+#define RTA_IFA		0x20	/* interface addr sockaddr present */
+#define RTA_AUTHOR	0x40	/* sockaddr for author of redirect */
+#define RTA_BRD		0x80	/* for NEWADDR, broadcast or p-p dest addr */
+
+/*
+ * Index offsets for sockaddr array for alternate internal encoding.
+ */
+#define RTAX_DST	0	/* destination sockaddr present */
+#define RTAX_GATEWAY	1	/* gateway sockaddr present */
+#define RTAX_NETMASK	2	/* netmask sockaddr present */
+#define RTAX_GENMASK	3	/* cloning mask sockaddr present */
+#define RTAX_IFP	4	/* interface name sockaddr present */
+#define RTAX_IFA	5	/* interface addr sockaddr present */
+#define RTAX_AUTHOR	6	/* sockaddr for author of redirect */
+#define RTAX_BRD	7	/* for NEWADDR, broadcast or p-p dest addr */
+#define RTAX_MAX	8	/* size of array to allocate */
+
+struct rt_addrinfo {
+	int	rti_addrs;
+	struct	sockaddr *rti_info[RTAX_MAX];
+};
+
+struct route_cb {
+	int	ip_count;
+	int	ip6_count;
+	int	ipx_count;
+	int	ns_count;
+	int	iso_count;
+	int	any_count;
+};
+
+
+
+#endif
diff --git a/src/unix/ifnet.c b/src/unix/ifnet.c
index 5ec8e32..793e9f6 100644
--- a/src/unix/ifnet.c
+++ b/src/unix/ifnet.c
@@ -62,7 +62,9 @@
 #include <signal.h>
 #include <sys/types.h>
 #include <net/if.h>
+#ifndef __IOS__
 #include <net/if_arp.h>
+#endif /* __IOS__ */
 #include <netinet/in_systm.h>
 #include <netinet/ip.h>
 #include <arpa/inet.h>
-- 
1.7.12.4 (Apple Git-37)





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