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platform: fix wrapper nm_platform_addr_flags2str() for rtnl_addr_flags2str()

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The compatibily wrapper for rtnl_addr_flags2str() did not
behave identical because libnl adds a trailing ',' if it
encounters unknown attributes.

Also add test cases.
This commit is contained in:
Thomas Haller 2014-03-14 14:46:26 +01:00
parent d74a3b1194
commit 8407a55a5d
2 changed files with 65 additions and 13 deletions
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45
src/platform/nm-platform.c
View file

@ -2521,20 +2521,39 @@ nm_platform_ip4_address_to_string (const NMPlatformIP4Address *address)
void
nm_platform_addr_flags2str (int flags, char *buf, size_t size)
{
rtnl_addr_flags2str(flags, buf, size);
if ( !NM_FLAGS_ANY (flags, IFA_F_MANAGETEMPADDR | IFA_F_NOPREFIXROUTE)
|| nm_platform_check_support_libnl_extended_ifa_flags ())
rtnl_addr_flags2str (flags, buf, size);
else {
/* There are two recent flags IFA_F_MANAGETEMPADDR and IFA_F_NOPREFIXROUTE.
* If libnl does not yet support them, add them by hand.
* These two flags were introduced together with the extended ifa_flags
* so check for nm_platform_check_support_libnl_extended_ifa_flags (). */
gboolean has_other_unknown_flags = FALSE;
size_t len;
/* There are two recent flags IFA_F_MANAGETEMPADDR and IFA_F_NOPREFIXROUTE.
* If libnl does not yet support them, add them by hand.
* These two flags were introduced together with the extended ifa_flags,
* so, check for that.
*/
if ((flags & IFA_F_MANAGETEMPADDR) && !nm_platform_check_support_libnl_extended_ifa_flags ()) {
strncat (buf, buf[0] ? "," IFA_F_MANAGETEMPADDR_STR : IFA_F_MANAGETEMPADDR_STR,
size - strlen (buf) - 1);
}
if ((flags & IFA_F_NOPREFIXROUTE) && !nm_platform_check_support_libnl_extended_ifa_flags ()) {
strncat (buf, buf[0] ? "," IFA_F_NOPREFIXROUTE_STR : IFA_F_NOPREFIXROUTE_STR,
size - strlen (buf) - 1);
/* if there are unknown flags to rtnl_addr_flags2str(), libnl appends ','
* to indicate them. We want to keep this behavior, if there are other
* unknown flags present. */
rtnl_addr_flags2str (flags & ~(IFA_F_MANAGETEMPADDR | IFA_F_NOPREFIXROUTE), buf, size);
len = strlen (buf);
if (len > 0) {
has_other_unknown_flags = (buf[len - 1] == ',');
if (!has_other_unknown_flags)
g_strlcat (buf, ",", size);
}
if (NM_FLAGS_ALL (flags, IFA_F_MANAGETEMPADDR | IFA_F_NOPREFIXROUTE))
g_strlcat (buf, IFA_F_MANAGETEMPADDR_STR","IFA_F_NOPREFIXROUTE_STR, size);
else if (NM_FLAGS_HAS (flags, IFA_F_MANAGETEMPADDR))
g_strlcat (buf, IFA_F_MANAGETEMPADDR_STR, size);
else
g_strlcat (buf, IFA_F_NOPREFIXROUTE_STR, size);
if (has_other_unknown_flags)
g_strlcat (buf, ",", size);
}
}

33
src/platform/tests/test-general.c
View file

@ -53,6 +53,37 @@ test_link_get_all (void)
/******************************************************************/
static void
test_nm_platform_ip6_address_to_string_flags (void)
{
NMPlatformIP6Address addr = { 0 };
g_assert_cmpstr (strstr (nm_platform_ip6_address_to_string (&addr), " flags "), ==, NULL);
addr.flags = IFA_F_MANAGETEMPADDR;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags mngtmpaddr ");
addr.flags = IFA_F_NOPREFIXROUTE;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags noprefixroute ");
addr.flags = IFA_F_MANAGETEMPADDR | IFA_F_NOPREFIXROUTE;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags mngtmpaddr,noprefixroute ");
addr.flags = IFA_F_TENTATIVE | IFA_F_NOPREFIXROUTE;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags tentative,noprefixroute ");
addr.flags = IFA_F_TENTATIVE | IFA_F_PERMANENT | IFA_F_MANAGETEMPADDR| IFA_F_NOPREFIXROUTE;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags tentative,permanent,mngtmpaddr,noprefixroute ");
addr.flags = IFA_F_TENTATIVE | IFA_F_PERMANENT | IFA_F_MANAGETEMPADDR| IFA_F_NOPREFIXROUTE | 0x8000;
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags tentative,permanent,mngtmpaddr,noprefixroute, ");
addr.flags = IFA_F_TENTATIVE | IFA_F_PERMANENT | IFA_F_MANAGETEMPADDR| IFA_F_NOPREFIXROUTE | ((G_MAXUINT - (G_MAXUINT >> 1)) >> 1);
nmtst_assert_str_has_substr (nm_platform_ip6_address_to_string (&addr), " flags tentative,permanent,mngtmpaddr,noprefixroute, ");
}
/******************************************************************/
NMTST_DEFINE ();
int
@ -62,6 +93,8 @@ main (int argc, char **argv)
g_test_add_func ("/general/init_linux_platform", test_init_linux_platform);
g_test_add_func ("/general/link_get_all", test_link_get_all);
g_test_add_func ("/general/nm_platform_ip6_address_to_string/flags", test_nm_platform_ip6_address_to_string_flags);
return g_test_run ();
}