forked from luck/tmp_suning_uos_patched
5a0e3ad6af
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
452 lines
15 KiB
C
452 lines
15 KiB
C
/*
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* Declarations of AX.25 type objects.
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*
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* Alan Cox (GW4PTS) 10/11/93
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*/
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#ifndef _AX25_H
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#define _AX25_H
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#include <linux/ax25.h>
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#include <linux/spinlock.h>
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#include <linux/timer.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <asm/atomic.h>
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#define AX25_T1CLAMPLO 1
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#define AX25_T1CLAMPHI (30 * HZ)
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#define AX25_BPQ_HEADER_LEN 16
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#define AX25_KISS_HEADER_LEN 1
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#define AX25_HEADER_LEN 17
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#define AX25_ADDR_LEN 7
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#define AX25_DIGI_HEADER_LEN (AX25_MAX_DIGIS * AX25_ADDR_LEN)
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#define AX25_MAX_HEADER_LEN (AX25_HEADER_LEN + AX25_DIGI_HEADER_LEN)
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/* AX.25 Protocol IDs */
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#define AX25_P_ROSE 0x01
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#define AX25_P_VJCOMP 0x06 /* Compressed TCP/IP packet */
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/* Van Jacobsen (RFC 1144) */
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#define AX25_P_VJUNCOMP 0x07 /* Uncompressed TCP/IP packet */
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/* Van Jacobsen (RFC 1144) */
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#define AX25_P_SEGMENT 0x08 /* Segmentation fragment */
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#define AX25_P_TEXNET 0xc3 /* TEXTNET datagram protocol */
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#define AX25_P_LQ 0xc4 /* Link Quality Protocol */
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#define AX25_P_ATALK 0xca /* Appletalk */
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#define AX25_P_ATALK_ARP 0xcb /* Appletalk ARP */
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#define AX25_P_IP 0xcc /* ARPA Internet Protocol */
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#define AX25_P_ARP 0xcd /* ARPA Address Resolution */
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#define AX25_P_FLEXNET 0xce /* FlexNet */
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#define AX25_P_NETROM 0xcf /* NET/ROM */
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#define AX25_P_TEXT 0xF0 /* No layer 3 protocol impl. */
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/* AX.25 Segment control values */
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#define AX25_SEG_REM 0x7F
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#define AX25_SEG_FIRST 0x80
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#define AX25_CBIT 0x80 /* Command/Response bit */
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#define AX25_EBIT 0x01 /* HDLC Address Extension bit */
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#define AX25_HBIT 0x80 /* Has been repeated bit */
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#define AX25_SSSID_SPARE 0x60 /* Unused bits in SSID for standard AX.25 */
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#define AX25_ESSID_SPARE 0x20 /* Unused bits in SSID for extended AX.25 */
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#define AX25_DAMA_FLAG 0x20 /* Well, it is *NOT* unused! (dl1bke 951121 */
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#define AX25_COND_ACK_PENDING 0x01
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#define AX25_COND_REJECT 0x02
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#define AX25_COND_PEER_RX_BUSY 0x04
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#define AX25_COND_OWN_RX_BUSY 0x08
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#define AX25_COND_DAMA_MODE 0x10
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#ifndef _LINUX_NETDEVICE_H
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#include <linux/netdevice.h>
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#endif
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/* Upper sub-layer (LAPB) definitions */
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/* Control field templates */
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#define AX25_I 0x00 /* Information frames */
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#define AX25_S 0x01 /* Supervisory frames */
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#define AX25_RR 0x01 /* Receiver ready */
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#define AX25_RNR 0x05 /* Receiver not ready */
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#define AX25_REJ 0x09 /* Reject */
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#define AX25_U 0x03 /* Unnumbered frames */
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#define AX25_SABM 0x2f /* Set Asynchronous Balanced Mode */
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#define AX25_SABME 0x6f /* Set Asynchronous Balanced Mode Extended */
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#define AX25_DISC 0x43 /* Disconnect */
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#define AX25_DM 0x0f /* Disconnected mode */
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#define AX25_UA 0x63 /* Unnumbered acknowledge */
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#define AX25_FRMR 0x87 /* Frame reject */
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#define AX25_UI 0x03 /* Unnumbered information */
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#define AX25_XID 0xaf /* Exchange information */
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#define AX25_TEST 0xe3 /* Test */
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#define AX25_PF 0x10 /* Poll/final bit for standard AX.25 */
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#define AX25_EPF 0x01 /* Poll/final bit for extended AX.25 */
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#define AX25_ILLEGAL 0x100 /* Impossible to be a real frame type */
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#define AX25_POLLOFF 0
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#define AX25_POLLON 1
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/* AX25 L2 C-bit */
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#define AX25_COMMAND 1
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#define AX25_RESPONSE 2
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/* Define Link State constants. */
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enum {
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AX25_STATE_0, /* Listening */
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AX25_STATE_1, /* SABM sent */
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AX25_STATE_2, /* DISC sent */
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AX25_STATE_3, /* Established */
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AX25_STATE_4 /* Recovery */
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};
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#define AX25_MODULUS 8 /* Standard AX.25 modulus */
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#define AX25_EMODULUS 128 /* Extended AX.25 modulus */
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enum {
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AX25_PROTO_STD_SIMPLEX,
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AX25_PROTO_STD_DUPLEX,
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#ifdef CONFIG_AX25_DAMA_SLAVE
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AX25_PROTO_DAMA_SLAVE,
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#ifdef CONFIG_AX25_DAMA_MASTER
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AX25_PROTO_DAMA_MASTER,
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#define AX25_PROTO_MAX AX25_PROTO_DAMA_MASTER
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#endif
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#endif
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__AX25_PROTO_MAX,
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AX25_PROTO_MAX = __AX25_PROTO_MAX -1
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};
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enum {
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AX25_VALUES_IPDEFMODE, /* 0=DG 1=VC */
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AX25_VALUES_AXDEFMODE, /* 0=Normal 1=Extended Seq Nos */
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AX25_VALUES_BACKOFF, /* 0=None 1=Linear 2=Exponential */
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AX25_VALUES_CONMODE, /* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */
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AX25_VALUES_WINDOW, /* Default window size for standard AX.25 */
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AX25_VALUES_EWINDOW, /* Default window size for extended AX.25 */
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AX25_VALUES_T1, /* Default T1 timeout value */
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AX25_VALUES_T2, /* Default T2 timeout value */
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AX25_VALUES_T3, /* Default T3 timeout value */
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AX25_VALUES_IDLE, /* Connected mode idle timer */
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AX25_VALUES_N2, /* Default N2 value */
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AX25_VALUES_PACLEN, /* AX.25 MTU */
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AX25_VALUES_PROTOCOL, /* Std AX.25, DAMA Slave, DAMA Master */
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AX25_VALUES_DS_TIMEOUT, /* DAMA Slave timeout */
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AX25_MAX_VALUES /* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */
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};
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#define AX25_DEF_IPDEFMODE 0 /* Datagram */
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#define AX25_DEF_AXDEFMODE 0 /* Normal */
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#define AX25_DEF_BACKOFF 1 /* Linear backoff */
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#define AX25_DEF_CONMODE 2 /* Connected mode allowed */
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#define AX25_DEF_WINDOW 2 /* Window=2 */
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#define AX25_DEF_EWINDOW 32 /* Module-128 Window=32 */
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#define AX25_DEF_T1 10000 /* T1=10s */
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#define AX25_DEF_T2 3000 /* T2=3s */
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#define AX25_DEF_T3 300000 /* T3=300s */
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#define AX25_DEF_N2 10 /* N2=10 */
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#define AX25_DEF_IDLE 0 /* Idle=None */
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#define AX25_DEF_PACLEN 256 /* Paclen=256 */
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#define AX25_DEF_PROTOCOL AX25_PROTO_STD_SIMPLEX /* Standard AX.25 */
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#define AX25_DEF_DS_TIMEOUT 180000 /* DAMA timeout 3 minutes */
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typedef struct ax25_uid_assoc {
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struct hlist_node uid_node;
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atomic_t refcount;
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uid_t uid;
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ax25_address call;
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} ax25_uid_assoc;
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#define ax25_uid_for_each(__ax25, node, list) \
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hlist_for_each_entry(__ax25, node, list, uid_node)
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#define ax25_uid_hold(ax25) \
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atomic_inc(&((ax25)->refcount))
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static inline void ax25_uid_put(ax25_uid_assoc *assoc)
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{
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if (atomic_dec_and_test(&assoc->refcount)) {
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kfree(assoc);
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}
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}
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typedef struct {
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ax25_address calls[AX25_MAX_DIGIS];
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unsigned char repeated[AX25_MAX_DIGIS];
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unsigned char ndigi;
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signed char lastrepeat;
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} ax25_digi;
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typedef struct ax25_route {
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struct ax25_route *next;
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atomic_t refcount;
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ax25_address callsign;
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struct net_device *dev;
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ax25_digi *digipeat;
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char ip_mode;
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} ax25_route;
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static inline void ax25_hold_route(ax25_route *ax25_rt)
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{
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atomic_inc(&ax25_rt->refcount);
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}
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extern void __ax25_put_route(ax25_route *ax25_rt);
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static inline void ax25_put_route(ax25_route *ax25_rt)
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{
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if (atomic_dec_and_test(&ax25_rt->refcount))
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__ax25_put_route(ax25_rt);
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}
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typedef struct {
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char slave; /* slave_mode? */
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struct timer_list slave_timer; /* timeout timer */
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unsigned short slave_timeout; /* when? */
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} ax25_dama_info;
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struct ctl_table;
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typedef struct ax25_dev {
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struct ax25_dev *next;
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struct net_device *dev;
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struct net_device *forward;
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struct ctl_table *systable;
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int values[AX25_MAX_VALUES];
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#if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER)
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ax25_dama_info dama;
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#endif
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} ax25_dev;
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typedef struct ax25_cb {
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struct hlist_node ax25_node;
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ax25_address source_addr, dest_addr;
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ax25_digi *digipeat;
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ax25_dev *ax25_dev;
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unsigned char iamdigi;
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unsigned char state, modulus, pidincl;
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unsigned short vs, vr, va;
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unsigned char condition, backoff;
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unsigned char n2, n2count;
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struct timer_list t1timer, t2timer, t3timer, idletimer;
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unsigned long t1, t2, t3, idle, rtt;
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unsigned short paclen, fragno, fraglen;
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struct sk_buff_head write_queue;
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struct sk_buff_head reseq_queue;
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struct sk_buff_head ack_queue;
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struct sk_buff_head frag_queue;
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unsigned char window;
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struct timer_list timer, dtimer;
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struct sock *sk; /* Backlink to socket */
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atomic_t refcount;
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} ax25_cb;
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#define ax25_sk(__sk) ((ax25_cb *)(__sk)->sk_protinfo)
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#define ax25_for_each(__ax25, node, list) \
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hlist_for_each_entry(__ax25, node, list, ax25_node)
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#define ax25_cb_hold(__ax25) \
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atomic_inc(&((__ax25)->refcount))
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static __inline__ void ax25_cb_put(ax25_cb *ax25)
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{
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if (atomic_dec_and_test(&ax25->refcount)) {
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kfree(ax25->digipeat);
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kfree(ax25);
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}
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}
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static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev)
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{
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skb->dev = dev;
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skb_reset_mac_header(skb);
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skb->pkt_type = PACKET_HOST;
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return htons(ETH_P_AX25);
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}
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/* af_ax25.c */
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extern struct hlist_head ax25_list;
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extern spinlock_t ax25_list_lock;
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extern void ax25_cb_add(ax25_cb *);
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struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int);
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struct sock *ax25_get_socket(ax25_address *, ax25_address *, int);
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extern ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *, struct net_device *);
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extern void ax25_send_to_raw(ax25_address *, struct sk_buff *, int);
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extern void ax25_destroy_socket(ax25_cb *);
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extern ax25_cb * __must_check ax25_create_cb(void);
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extern void ax25_fillin_cb(ax25_cb *, ax25_dev *);
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extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *);
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/* ax25_addr.c */
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extern const ax25_address ax25_bcast;
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extern const ax25_address ax25_defaddr;
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extern const ax25_address null_ax25_address;
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extern char *ax2asc(char *buf, const ax25_address *);
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extern void asc2ax(ax25_address *addr, const char *callsign);
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extern int ax25cmp(const ax25_address *, const ax25_address *);
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extern int ax25digicmp(const ax25_digi *, const ax25_digi *);
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extern const unsigned char *ax25_addr_parse(const unsigned char *, int,
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ax25_address *, ax25_address *, ax25_digi *, int *, int *);
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extern int ax25_addr_build(unsigned char *, const ax25_address *,
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const ax25_address *, const ax25_digi *, int, int);
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extern int ax25_addr_size(const ax25_digi *);
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extern void ax25_digi_invert(const ax25_digi *, ax25_digi *);
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/* ax25_dev.c */
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extern ax25_dev *ax25_dev_list;
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extern spinlock_t ax25_dev_lock;
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static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev)
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{
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return dev->ax25_ptr;
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}
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extern ax25_dev *ax25_addr_ax25dev(ax25_address *);
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extern void ax25_dev_device_up(struct net_device *);
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extern void ax25_dev_device_down(struct net_device *);
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extern int ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *);
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extern struct net_device *ax25_fwd_dev(struct net_device *);
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extern void ax25_dev_free(void);
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/* ax25_ds_in.c */
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extern int ax25_ds_frame_in(ax25_cb *, struct sk_buff *, int);
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/* ax25_ds_subr.c */
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extern void ax25_ds_nr_error_recovery(ax25_cb *);
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extern void ax25_ds_enquiry_response(ax25_cb *);
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extern void ax25_ds_establish_data_link(ax25_cb *);
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extern void ax25_dev_dama_off(ax25_dev *);
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extern void ax25_dama_on(ax25_cb *);
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extern void ax25_dama_off(ax25_cb *);
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/* ax25_ds_timer.c */
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extern void ax25_ds_setup_timer(ax25_dev *);
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extern void ax25_ds_set_timer(ax25_dev *);
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extern void ax25_ds_del_timer(ax25_dev *);
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extern void ax25_ds_timer(ax25_cb *);
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extern void ax25_ds_t1_timeout(ax25_cb *);
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extern void ax25_ds_heartbeat_expiry(ax25_cb *);
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extern void ax25_ds_t3timer_expiry(ax25_cb *);
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extern void ax25_ds_idletimer_expiry(ax25_cb *);
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/* ax25_iface.c */
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struct ax25_protocol {
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struct ax25_protocol *next;
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unsigned int pid;
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int (*func)(struct sk_buff *, ax25_cb *);
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};
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extern void ax25_register_pid(struct ax25_protocol *ap);
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extern void ax25_protocol_release(unsigned int);
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struct ax25_linkfail {
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struct hlist_node lf_node;
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void (*func)(ax25_cb *, int);
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};
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extern void ax25_linkfail_register(struct ax25_linkfail *lf);
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extern void ax25_linkfail_release(struct ax25_linkfail *lf);
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extern int __must_check ax25_listen_register(ax25_address *,
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struct net_device *);
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extern void ax25_listen_release(ax25_address *, struct net_device *);
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extern int (*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *);
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extern int ax25_listen_mine(ax25_address *, struct net_device *);
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extern void ax25_link_failed(ax25_cb *, int);
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extern int ax25_protocol_is_registered(unsigned int);
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/* ax25_in.c */
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extern int ax25_rx_iframe(ax25_cb *, struct sk_buff *);
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extern int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
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/* ax25_ip.c */
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extern int ax25_hard_header(struct sk_buff *, struct net_device *,
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unsigned short, const void *,
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const void *, unsigned int);
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extern int ax25_rebuild_header(struct sk_buff *);
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extern const struct header_ops ax25_header_ops;
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/* ax25_out.c */
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extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct net_device *);
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extern void ax25_output(ax25_cb *, int, struct sk_buff *);
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extern void ax25_kick(ax25_cb *);
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extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int);
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extern void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev);
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extern int ax25_check_iframes_acked(ax25_cb *, unsigned short);
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/* ax25_route.c */
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extern void ax25_rt_device_down(struct net_device *);
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extern int ax25_rt_ioctl(unsigned int, void __user *);
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extern const struct file_operations ax25_route_fops;
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extern ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev);
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extern int ax25_rt_autobind(ax25_cb *, ax25_address *);
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extern struct sk_buff *ax25_rt_build_path(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *);
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extern void ax25_rt_free(void);
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/* ax25_std_in.c */
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extern int ax25_std_frame_in(ax25_cb *, struct sk_buff *, int);
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/* ax25_std_subr.c */
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extern void ax25_std_nr_error_recovery(ax25_cb *);
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extern void ax25_std_establish_data_link(ax25_cb *);
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extern void ax25_std_transmit_enquiry(ax25_cb *);
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extern void ax25_std_enquiry_response(ax25_cb *);
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extern void ax25_std_timeout_response(ax25_cb *);
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/* ax25_std_timer.c */
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extern void ax25_std_heartbeat_expiry(ax25_cb *);
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extern void ax25_std_t1timer_expiry(ax25_cb *);
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extern void ax25_std_t2timer_expiry(ax25_cb *);
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extern void ax25_std_t3timer_expiry(ax25_cb *);
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extern void ax25_std_idletimer_expiry(ax25_cb *);
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/* ax25_subr.c */
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extern void ax25_clear_queues(ax25_cb *);
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extern void ax25_frames_acked(ax25_cb *, unsigned short);
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extern void ax25_requeue_frames(ax25_cb *);
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extern int ax25_validate_nr(ax25_cb *, unsigned short);
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extern int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *);
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extern void ax25_send_control(ax25_cb *, int, int, int);
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extern void ax25_return_dm(struct net_device *, ax25_address *, ax25_address *, ax25_digi *);
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extern void ax25_calculate_t1(ax25_cb *);
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extern void ax25_calculate_rtt(ax25_cb *);
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extern void ax25_disconnect(ax25_cb *, int);
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/* ax25_timer.c */
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extern void ax25_setup_timers(ax25_cb *);
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extern void ax25_start_heartbeat(ax25_cb *);
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extern void ax25_start_t1timer(ax25_cb *);
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extern void ax25_start_t2timer(ax25_cb *);
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extern void ax25_start_t3timer(ax25_cb *);
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extern void ax25_start_idletimer(ax25_cb *);
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extern void ax25_stop_heartbeat(ax25_cb *);
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extern void ax25_stop_t1timer(ax25_cb *);
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extern void ax25_stop_t2timer(ax25_cb *);
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extern void ax25_stop_t3timer(ax25_cb *);
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extern void ax25_stop_idletimer(ax25_cb *);
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extern int ax25_t1timer_running(ax25_cb *);
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extern unsigned long ax25_display_timer(struct timer_list *);
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/* ax25_uid.c */
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extern int ax25_uid_policy;
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extern ax25_uid_assoc *ax25_findbyuid(uid_t);
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extern int __must_check ax25_uid_ioctl(int, struct sockaddr_ax25 *);
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extern const struct file_operations ax25_uid_fops;
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extern void ax25_uid_free(void);
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/* sysctl_net_ax25.c */
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#ifdef CONFIG_SYSCTL
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extern void ax25_register_sysctl(void);
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extern void ax25_unregister_sysctl(void);
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#else
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static inline void ax25_register_sysctl(void) {};
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static inline void ax25_unregister_sysctl(void) {};
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#endif /* CONFIG_SYSCTL */
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#endif
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