[IPROUTE][IP]: enabled to manipulate the flags of IFA_F_HOMEADDRESS or IFA_F_NODAD from ip.

[Noriaki TAKAMIYA]

Hi, 

  This patch enables ip command to add IFA_F_HOMEADDRESS and
  IFA_F_NODAD flags while adding the IPv6 address.

Signed-off-by: Noriaki TAKAMIYA<[EMAIL PROTECTED]>
Signed-off-by: Masahide NAKAMURA <[EMAIL PROTECTED]>

---
 ip/ipaddress.c |   23 ++++++++++++++++++++++-
 1 files changed, 22 insertions(+), 1 deletions(-)

diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index cae1fcd..98effa3 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -61,6 +61,7 @@ static void usage(void)
                iplink_usage();
        }
        fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING 
[ LIFETIME ]\n");
+       fprintf(stderr, "                                                      
[ CONFFLAG-LIST]\n");
        fprintf(stderr, "       ip addr del IFADDR dev STRING\n");
        fprintf(stderr, "       ip addr {show|flush} [ dev STRING ] [ scope 
SCOPE-ID ]\n");
        fprintf(stderr, "                            [ to PREFIX ] [ FLAG-LIST 
] [ label PATTERN ]\n");
@@ -70,7 +71,9 @@ static void usage(void)
        fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
        fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
        fprintf(stderr, "FLAG  := [ permanent | dynamic | secondary | primary 
|\n");
-       fprintf(stderr, "           tentative | deprecated ]\n");
+       fprintf(stderr, "           tentative | deprecated | CONFFLAG-LIST 
]\n");
+       fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
+       fprintf(stderr, "CONFFLAG  := [ home | nodad ]\n");
        fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT 
]\n");
        fprintf(stderr, "LFT := forever | SECONDS\n");
 
@@ -427,6 +430,14 @@ int print_addrinfo(const struct sockaddr
                ifa->ifa_flags &= ~IFA_F_DEPRECATED;
                fprintf(fp, "deprecated ");
        }
+       if (ifa->ifa_flags&IFA_F_HOMEADDRESS) {
+               ifa->ifa_flags &= ~IFA_F_HOMEADDRESS;
+               fprintf(fp, "home ");
+       }
+       if (ifa->ifa_flags&IFA_F_NODAD) {
+               ifa->ifa_flags &= ~IFA_F_NODAD;
+               fprintf(fp, "nodad ");
+       }
        if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
                fprintf(fp, "dynamic ");
        } else
@@ -567,6 +578,12 @@ int ipaddr_list_or_flush(int argc, char
                } else if (strcmp(*argv, "deprecated") == 0) {
                        filter.flags |= IFA_F_DEPRECATED;
                        filter.flagmask |= IFA_F_DEPRECATED;
+               } else if (strcmp(*argv, "home") == 0) {
+                       filter.flags |= IFA_F_HOMEADDRESS;
+                       filter.flagmask |= IFA_F_HOMEADDRESS;
+               } else if (strcmp(*argv, "nodad") == 0) {
+                       filter.flags |= IFA_F_NODAD;
+                       filter.flagmask |= IFA_F_NODAD;
                } else if (strcmp(*argv, "label") == 0) {
                        NEXT_ARG();
                        filter.label = *argv;
@@ -844,6 +861,10 @@ int ipaddr_modify(int cmd, int flags, in
                        preferred_lftp = *argv;
                        if (set_lifetime(&preferred_lft, *argv))
                                invarg("preferred_lft value", *argv);
+               } else if (strcmp(*argv, "home") == 0) {
+                       req.ifa.ifa_flags |= IFA_F_HOMEADDRESS;
+               } else if (strcmp(*argv, "nodad") == 0) {
+                       req.ifa.ifa_flags |= IFA_F_NODAD;
                } else {
                        if (strcmp(*argv, "local") == 0) {
                                NEXT_ARG();
-- 
Noriaki TAKAMIYA
-
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