/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2014 Tobias Klauser * Subject to the GPL, version 2. */ #include #include "hash.h" #include "str.h" #include "lookup.h" #include "xmalloc.h" static struct hash_table lookup_port_tables[PORTS_MAX]; static const char * const lookup_port_files[] = { [PORTS_UDP] = ETCDIRE_STRING "/udp.conf", [PORTS_TCP] = ETCDIRE_STRING "/tcp.conf", [PORTS_ETHER] = ETCDIRE_STRING "/ether.conf", }; struct port { unsigned int id; char *port; struct port *next; }; void lookup_init_ports(enum ports which) { FILE *fp; char buff[128], *ptr, *end; const char *file; struct hash_table *table; struct port *p; void **pos; bug_on(which >= PORTS_MAX); table = &lookup_port_tables[which]; file = lookup_port_files[which]; fp = fopen(file, "r"); if (!fp) panic("No %s found!\n", file); memset(buff, 0, sizeof(buff)); while (fgets(buff, sizeof(buff), fp) != NULL) { buff[sizeof(buff) - 1] = 0; ptr = buff; p = xmalloc(sizeof(*p)); p->id = strtol(ptr, &end, 0); /* not a valid line, skip */ if (p->id == 0 && end == ptr) { xfree(p); continue; } ptr = strstr(buff, ", "); /* likewise */ if (!ptr) { xfree(p); continue; } ptr += strlen(", "); ptr = strtrim_right(ptr, '\n'); ptr = strtrim_right(ptr, ' '); p->port = xstrdup(ptr); p->next = NULL; pos = insert_hash(p->id, p, table); if (pos) { p->next = *pos; *pos = p; } memset(buff, 0, sizeof(buff)); } fclose(fp); } static int __lookup_cleanup_single(void *ptr) { struct port *tmp, *p = ptr; if (!ptr) return 0; while ((tmp = p->next)) { xfree(p->port); xfree(p); p = tmp; } xfree(p->port); xfree(p); return 0; } void lookup_cleanup_ports(enum ports which) { struct hash_table *table; bug_on(which >= PORTS_MAX); table = &lookup_port_tables[which]; for_each_hash(table, __lookup_cleanup_single); free_hash(table); } #define __do_lookup_inline(id, struct_name, hash_ptr, struct_member) \ ({ \ struct struct_name *entry = lookup_hash(id, hash_ptr); \ \ while (entry && id != entry->id) \ entry = entry->next; \ \ (entry && id == entry->id ? entry->struct_member : NULL); \ }) char *lookup_ether_type(unsigned int id) { return __do_lookup_inline(id, port, &lookup_port_tables[PORTS_ETHER], port); } char *lookup_port_udp(unsigned int id) { return __do_lookup_inline(id, port, &lookup_port_tables[PORTS_UDP], port); } char *lookup_port_tcp(unsigned int id) { return __do_lookup_inline(id, port, &lookup_port_tables[PORTS_TCP], port); } =''/>
path: root/security/selinux/ss/ebitmap.h
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /security/selinux/ss/ebitmap.h
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'security/selinux/ss/ebitmap.h')
ing it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/dt-bindings/pinctrl/am43xx.h')