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- shrink iproute a bit (-200 bytes). Untested

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This commit is contained in:
Bernhard Reutner-Fischer 2007-04-12 11:36:56 +00:00
parent b290889f02
commit c98c31783c
3 changed files with 84 additions and 63 deletions
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143
networking/libiproute/iproute.c
View File

@ -306,10 +306,23 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
struct rtattr * mxrta = (void*)mxbuf; struct rtattr * mxrta = (void*)mxbuf;
unsigned mxlock = 0; unsigned mxlock = 0;
char *d = NULL; char *d = NULL;
int gw_ok = 0; enum { gw_ok = 1<<0, dst_ok = 1<<1, proto_ok = 1<<2, type_ok = 1<<3};
int dst_ok = 0; smalluint ok = 0;
int proto_ok = 0; static const char * const keywords[] = {
int type_ok = 0; "src", "via", "mtu", "lock", "protocol", "table", "dev", "oif", "to",
NULL
};
enum {
ARG_src,
ARG_via,
ARG_mtu, PARM_lock,
ARG_protocol,
ARG_table,
ARG_dev,
ARG_oif,
ARG_to
};
int arg;
memset(&req, 0, sizeof(req)); memset(&req, 0, sizeof(req));
@ -330,69 +343,64 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
mxrta->rta_len = RTA_LENGTH(0); mxrta->rta_len = RTA_LENGTH(0);
while (argc > 0) { while (argc > 0) {
if (strcmp(*argv, "src") == 0) { arg = index_in_substr_array(keywords, *argv);
if (arg == ARG_src) {
inet_prefix addr; inet_prefix addr;
NEXT_ARG(); NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family); get_addr(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) { if (req.r.rtm_family == AF_UNSPEC)
req.r.rtm_family = addr.family; req.r.rtm_family = addr.family;
}
addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen); addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "via") == 0) { } else if (arg == ARG_via) {
inet_prefix addr; inet_prefix addr;
gw_ok = 1; ok |= gw_ok;
NEXT_ARG(); NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family); get_addr(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) { if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family; req.r.rtm_family = addr.family;
} }
addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen); addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "mtu") == 0) { } else if (arg == ARG_mtu) {
unsigned mtu; unsigned mtu;
NEXT_ARG(); NEXT_ARG();
if (strcmp(*argv, "lock") == 0) { if (index_in_str_array(keywords, *argv) == PARM_lock) {
mxlock |= (1<<RTAX_MTU); mxlock |= (1<<RTAX_MTU);
NEXT_ARG(); NEXT_ARG();
} }
if (get_unsigned(&mtu, *argv, 0)) { if (get_unsigned(&mtu, *argv, 0))
invarg(*argv, "mtu"); invarg(*argv, "mtu");
}
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
} else if (matches(*argv, "protocol") == 0) { } else if (arg == ARG_protocol) {
uint32_t prot; uint32_t prot;
NEXT_ARG(); NEXT_ARG();
if (rtnl_rtprot_a2n(&prot, *argv)) if (rtnl_rtprot_a2n(&prot, *argv))
invarg(*argv, "protocol"); invarg(*argv, "protocol");
req.r.rtm_protocol = prot; req.r.rtm_protocol = prot;
proto_ok =1; ok |= proto_ok;
#if ENABLE_FEATURE_IP_RULE } else if (arg == ARG_table) {
} else if (matches(*argv, "table") == 0) {
uint32_t tid; uint32_t tid;
NEXT_ARG(); NEXT_ARG();
if (rtnl_rttable_a2n(&tid, *argv)) if (rtnl_rttable_a2n(&tid, *argv))
invarg(*argv, "table"); invarg(*argv, "table");
req.r.rtm_table = tid; req.r.rtm_table = tid;
#endif } else if (arg == ARG_dev || arg == ARG_oif) {
} else if (strcmp(*argv, "dev") == 0 ||
strcmp(*argv, "oif") == 0) {
NEXT_ARG(); NEXT_ARG();
d = *argv; d = *argv;
} else { } else {
int type; int type;
inet_prefix dst; inet_prefix dst;
if (strcmp(*argv, "to") == 0) { if (arg == ARG_to) {
NEXT_ARG(); NEXT_ARG();
} }
if ((**argv < '0' || **argv > '9') if ((**argv < '0' || **argv > '9')
&& rtnl_rtntype_a2n(&type, *argv) == 0 && rtnl_rtntype_a2n(&type, *argv) == 0) {
) {
NEXT_ARG(); NEXT_ARG();
req.r.rtm_type = type; req.r.rtm_type = type;
type_ok = 1; ok |= type_ok;
} }
if (dst_ok) { if (ok & dst_ok) {
duparg2("to", *argv); duparg2("to", *argv);
} }
get_prefix(&dst, *argv, req.r.rtm_family); get_prefix(&dst, *argv, req.r.rtm_family);
@ -400,7 +408,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
req.r.rtm_family = dst.family; req.r.rtm_family = dst.family;
} }
req.r.rtm_dst_len = dst.bitlen; req.r.rtm_dst_len = dst.bitlen;
dst_ok = 1; ok |= dst_ok;
if (dst.bytelen) { if (dst.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen); addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
} }
@ -427,6 +435,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
} }
addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
} }
if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT) if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT)
req.r.rtm_scope = RT_SCOPE_HOST; req.r.rtm_scope = RT_SCOPE_HOST;
else if (req.r.rtm_type == RTN_BROADCAST || else if (req.r.rtm_type == RTN_BROADCAST ||
@ -436,7 +445,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) { else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) {
if (cmd == RTM_DELROUTE) if (cmd == RTM_DELROUTE)
req.r.rtm_scope = RT_SCOPE_NOWHERE; req.r.rtm_scope = RT_SCOPE_NOWHERE;
else if (!gw_ok) else if (!(ok & gw_ok))
req.r.rtm_scope = RT_SCOPE_LINK; req.r.rtm_scope = RT_SCOPE_LINK;
} }
@ -504,7 +513,21 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
struct rtnl_handle rth; struct rtnl_handle rth;
char *id = NULL; char *id = NULL;
char *od = NULL; char *od = NULL;
static const char * const keywords[] = {
"protocol", "all", "dev", "oif", "iif", "via", "table", "cache",/*all,*/
"from", "root", "match", "exact", "to", /*root,match,exact*/ NULL
};
enum {
ARG_proto, PARM_all,
ARG_dev,
ARG_oif,
ARG_iif,
ARG_via,
ARG_table, PARM_cache, /*PARM_all,*/
ARG_from, PARM_root, PARM_match, PARM_exact,
ARG_to /*PARM_root, PARM_match, PARM_exact*/
};
int arg, parm;
iproute_reset_filter(); iproute_reset_filter();
filter.tb = RT_TABLE_MAIN; filter.tb = RT_TABLE_MAIN;
@ -512,67 +535,66 @@ static int iproute_list_or_flush(int argc, char **argv, int flush)
bb_error_msg_and_die(bb_msg_requires_arg, "\"ip route flush\""); bb_error_msg_and_die(bb_msg_requires_arg, "\"ip route flush\"");
while (argc > 0) { while (argc > 0) {
if (matches(*argv, "protocol") == 0) { arg = index_in_substr_array(keywords, *argv);
if (arg == ARG_proto) {
uint32_t prot = 0; uint32_t prot = 0;
NEXT_ARG(); NEXT_ARG();
filter.protocolmask = -1; filter.protocolmask = -1;
if (rtnl_rtprot_a2n(&prot, *argv)) { if (rtnl_rtprot_a2n(&prot, *argv)) {
if (strcmp(*argv, "all") != 0) { if (index_in_str_array(keywords, *argv) != PARM_all)
invarg(*argv, "protocol"); invarg(*argv, "protocol");
}
prot = 0; prot = 0;
filter.protocolmask = 0; filter.protocolmask = 0;
} }
filter.protocol = prot; filter.protocol = prot;
} else if (strcmp(*argv, "dev") == 0 || } else if (arg == ARG_dev || arg == ARG_oif) {
strcmp(*argv, "oif") == 0) {
NEXT_ARG(); NEXT_ARG();
od = *argv; od = *argv;
} else if (strcmp(*argv, "iif") == 0) { } else if (arg == ARG_iif) {
NEXT_ARG(); NEXT_ARG();
id = *argv; id = *argv;
} else if (matches(*argv, "from") == 0) { } else if (arg == ARG_via) {
NEXT_ARG(); NEXT_ARG();
if (matches(*argv, "root") == 0) { get_prefix(&filter.rvia, *argv, do_ipv6);
} else if (arg == ARG_table) {
NEXT_ARG();
parm = index_in_substr_array(keywords, *argv);
if (parm == PARM_cache)
filter.tb = -1;
else if (parm == PARM_all)
filter.tb = 0;
else
invarg(*argv, "table");
} else if (arg == ARG_from) {
NEXT_ARG();
parm = index_in_substr_array(keywords, *argv);
if (parm == PARM_root) {
NEXT_ARG(); NEXT_ARG();
get_prefix(&filter.rsrc, *argv, do_ipv6); get_prefix(&filter.rsrc, *argv, do_ipv6);
} else if (matches(*argv, "match") == 0) { } else if (parm == PARM_match) {
NEXT_ARG(); NEXT_ARG();
get_prefix(&filter.msrc, *argv, do_ipv6); get_prefix(&filter.msrc, *argv, do_ipv6);
} else { } else {
if (matches(*argv, "exact") == 0) { if (parm == PARM_exact)
NEXT_ARG(); NEXT_ARG();
}
get_prefix(&filter.msrc, *argv, do_ipv6); get_prefix(&filter.msrc, *argv, do_ipv6);
filter.rsrc = filter.msrc; filter.rsrc = filter.msrc;
} }
} else { } else {
if (matches(*argv, "to") == 0) { /* parm = arg; // would be more plausible, we reuse arg here */
if (arg == ARG_to) {
NEXT_ARG(); NEXT_ARG();
arg = index_in_substr_array(keywords, *argv);
} }
if (matches(*argv, "root") == 0) { if (arg == PARM_root) {
NEXT_ARG(); NEXT_ARG();
get_prefix(&filter.rdst, *argv, do_ipv6); get_prefix(&filter.rdst, *argv, do_ipv6);
} else if (matches(*argv, "match") == 0) { } else if (arg == PARM_match) {
NEXT_ARG(); NEXT_ARG();
get_prefix(&filter.mdst, *argv, do_ipv6); get_prefix(&filter.mdst, *argv, do_ipv6);
} else if (matches(*argv, "table") == 0) {
NEXT_ARG();
if (matches(*argv, "cache") == 0) {
filter.tb = -1;
#if 0 && ENABLE_FEATURE_IP_RULE
#else
} else if (matches(*argv, "main") != 0) {
invarg(*argv, "table");
}
#endif
} else if (matches(*argv, "cache") == 0) {
filter.tb = -1;
} else { } else {
if (matches(*argv, "exact") == 0) { if (arg == PARM_exact)
NEXT_ARG(); NEXT_ARG();
}
get_prefix(&filter.mdst, *argv, do_ipv6); get_prefix(&filter.mdst, *argv, do_ipv6);
filter.rdst = filter.mdst; filter.rdst = filter.mdst;
} }
@ -655,8 +677,8 @@ static int iproute_get(int argc, char **argv)
} req; } req;
char *idev = NULL; char *idev = NULL;
char *odev = NULL; char *odev = NULL;
int connected = 0; bool connected = 0;
int from_ok = 0; bool from_ok = 0;
static const char * const options[] = static const char * const options[] =
{ "from", "iif", "oif", "dev", "notify", "connected", "to", 0 }; { "from", "iif", "oif", "dev", "notify", "connected", "to", 0 };
@ -722,8 +744,7 @@ static int iproute_get(int argc, char **argv)
} }
req.r.rtm_dst_len = addr.bitlen; req.r.rtm_dst_len = addr.bitlen;
} }
argc--; argc--; argv++;
argv++;
} }
} }

2
networking/libiproute/utils.c
View File

@ -29,7 +29,7 @@ int get_integer(int *val, char *arg, int base)
*val = res; *val = res;
return 0; return 0;
} }
//XXX: FIXME: use some libbb function instead
int get_unsigned(unsigned *val, char *arg, int base) int get_unsigned(unsigned *val, char *arg, int base)
{ {
unsigned long res; unsigned long res;

2
networking/libiproute/utils.h
View File

@ -78,7 +78,7 @@ extern const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int bufle
void invarg(const char *, const char *) ATTRIBUTE_NORETURN; void invarg(const char *, const char *) ATTRIBUTE_NORETURN;
void duparg(const char *, const char *) ATTRIBUTE_NORETURN; void duparg(const char *, const char *) ATTRIBUTE_NORETURN;
void duparg2(const char *, const char *) ATTRIBUTE_NORETURN; void duparg2(const char *, const char *) ATTRIBUTE_NORETURN;
int /*ATTRIBUTE_DEPRECATED*/ matches(const char *arg, const char *pattern); int ATTRIBUTE_DEPRECATED matches(const char *arg, const char *pattern);
int inet_addr_match(inet_prefix *a, inet_prefix *b, int bits); int inet_addr_match(inet_prefix *a, inet_prefix *b, int bits);
const char *dnet_ntop(int af, const void *addr, char *str, size_t len); const char *dnet_ntop(int af, const void *addr, char *str, size_t len);