[apparmor] [patch 17/26] Add the ability to mediate signals.

[Seth Arnold]

On Tue, Apr 15, 2014 at 10:22:24AM -0700, john.johansen at canonical.com wrote:
> Add signal rules and make sure the parser encodes support for them
> if the supported feature set reports supporting them.

Acked-by: Seth Arnold <seth.arnold at canonical.com>

Would it make more sense to put "exists" as entry 0 in the following
tables? It is exercised by sending signal 0, so it'd make more sense to me
to pick the userspace number here.

Thanks


> +/* Signal names mapped to and internal ordering */
> +static struct signal_map { const char *name; int num; } signal_map[] = {
> +	{"hup",		1},
> +	{"int",		2},
> +	{"quit",	3},
> +	{"ill",		4},
> +	{"trap",	5},
> +	{"abrt",	6},
> +	{"bus",		7},
> +	{"fpe",		8},
> +	{"kill",	9},
> +	{"usr1",	10},
> +	{"segv",	11},
> +	{"usr2",	12},
> +	{"pipe",	13},
> +	{"alrm",	14},
> +	{"term",	15},
> +	{"stkflt",	16},
> +	{"chld",	17},
> +	{"cont",	18},
> +	{"stop",	19},
> +	{"stp",		20},
> +	{"ttin",	21},
> +	{"ttou",	22},
> +	{"urg",		23},
> +	{"xcpu",	24},
> +	{"xfsz",	25},
> +	{"vtalrm",	26},
> +	{"prof",	27},
> +	{"winch",	28},
> +	{"io",		29},
> +	{"pwr",		30},
> +	{"sys",		31},
> +	{"emt",		32},
> +	{"exists",	35},
> +
> +	/* terminate */
> +	{NULL,		0}
> +};
> +
> +/* this table is ordered post sig_map[sig] mapping */
> +static const char *const sig_names[MAXMAPPED_SIG + 1] = {
> +	"unknown",
> +	"hup",
> +	"int",
> +	"quit",
> +	"ill",
> +	"trap",
> +	"abrt",
> +	"bus",
> +	"fpe",
> +	"kill",
> +	"usr1",
> +	"segv",
> +	"usr2",
> +	"pipe",
> +	"alrm",
> +	"term",
> +	"stkflt",
> +	"chld",
> +	"cont",
> +	"stop",
> +	"stp",
> +	"ttin",
> +	"ttou",
> +	"urg",
> +	"xcpu",
> +	"xfsz",
> +	"vtalrm",
> +	"prof",
> +	"winch",
> +	"io",
> +	"pwr",
> +	"sys",
> +	"emt",
> +	"lost",
> +	"unused",
> +
> +	"exists",	/* always last existance test mapped to MAXMAPPED_SIG */
> +};

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